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llvm's json parser supports uint64_t, so let's better use it for the packets being sent between lldb and lldb-server instead of using int64_t as an intermediate type, which might be error-prone.
These asserts are believed to hold after several recent miscompiles have been fixed. If you see an assertion failure on this change, please toggle the default back and make sure you file a bug with a reproducer. We may have as yet uncaught miscompiles lurking in this code. Differential Revision: https://reviews.llvm.org/D125271
…rity. This is a followup to D124715, which changed the default, and it anticipates future patches raising the priority of Low (which is currently equal to Background on Windows & Linux). The main point is to allow users to restore the old behavior, which e.g. allows efficiency cores to remain idle. I did consider making this a config setting, this is a more complicated change: - needs to touch queue priorities as well as thread priorities - we don't know the priority until evaluating the config inside the task - users would want the ability to prioritize background indexing tasks relative to each other without necessarily affecting thread priority, so using one option for both may be confusing I don't really have a use case, so I prefer the simpler thing. Differential Revision: https://reviews.llvm.org/D125673
This diff updates the LLVMIR dialect Fastmath flags attribute to use recently added features of `BitEnum` attributes. Specifically, this diff uses the bit enum "group" case to represent the `fast` value as an alias for a combination of other values (`ninf`, `nnan`, ...), instead of using a separate integer value. (This is in line with LLVM's fastmath flags representation.) This diff also leverages the `printBitEnumPrimaryGroups` `tblgen` field for concise enum printing. The `BitEnum` features were developed for an upcoming diff that adds `fastmath` support to the arithmetic dialect. This diff simply applies some of the relevant new features to the LLVM dialect attribute. Reviewed By: ftynse, Mogball Differential Revision: https://reviews.llvm.org/D124720
- add missing benchmark for lex/preprocess steps - name benchmarks after the function they're benchmarking, when appropriate - remove unergonomic "run" prefixes from benchmark names - give a useful error message if --grammar or --source are missing - Use realistic example of how to run, run all benchmarks by default. (for someone who doesn't know the commands, this is the most useful action) - Improve typos/wording in comment - clean up unused vars - avoid "parseable stream" name, which isn't a great name & not one I expected to escape from ClangPseudoMain Differential Revision: https://reviews.llvm.org/D125312
shuffle (cast X), (cast Y), Mask --> cast (shuffle X, Y, Mask) This extends the transform added with 0353c2c. If the casts are to a larger element type, the transform reduces shuffle bit width, so that should be a win for most codegen (if not, it can be inverted).
This adds the sprintf entrypoint, as well as unit tests. Currently sprintf only supports %%, %s, and %c, but the other conversions are on the way. Reviewed By: sivachandra, lntue Differential Revision: https://reviews.llvm.org/D125573
This patch adds a transform to the local prepass in InsertVSETVLI which canonicalizes an AVL of a register from another vsetvli into immediate or VLMAX when VTYPE is the same. In this patch, I chose to be conservative and avoid arbitrary vreg forwarding due to profitability concerns about possibility overlapping live ranges. This has the effect of eliminating vsetvli instructions in loops which are walking either VLMAX or a constant number of lanes per iteration. Differential Revision: https://reviews.llvm.org/D125812
Weaken the guard for whether a sub-expression has been evaluated to only check for the storage location, instead of checking for the value. It should be sufficient to check for the storage location, as we don't necessarily guarantee that a value will be set for the location (although this is currently true right now). Differential Revision: https://reviews.llvm.org/D125823
This reverts commit 76ddbb1.
We always had global and scratch loads to LDS in the gfx9, but did not handle it. These were available via the 'lds' encoding bit. In gfx940 this bit was reused as 'svs' which resulted in new '_lds' opcodes effectively pushing this bit into the opcode, but functionally it is the same. These instructions are also available on gfx10. Differential Revision: https://reviews.llvm.org/D125126
This reverts commit ccdb56a. Still seeing windows failures on GN bots: http://45.33.8.238/win/58316/step_9.txt Unfortunately I can't debug these at all - it's a bare unsymbolized stacktrace, and I can't reproduce the failure.
Differential Revision: https://reviews.llvm.org/D125279
…racing on lldb-server This diffs implements per-core tracing on lldb-server. It also includes tests that ensure that tracing can be initiated from the client and that the jLLDBGetState ppacket returns the list of trace buffers per core. This doesn't include any decoder changes. Finally, this makes some little changes here and there improving the existing code. A specific piece of code that can't reliably be tested is when tracing per core fails due to permissions. In this case we add a troubleshooting message and this is the manual test: ``` /proc/sys/kernel/perf_event_paranoid set to 1 (lldb) process trace start --per-core-tracing error: perf event syscall failed: Permission denied You might need that /proc/sys/kernel/perf_event_paranoid has a value of 0 or -1. `` Differential Revision: https://reviews.llvm.org/D124858
…-core tracing based on the process state When tracing on per-core mode, we are tracing all processes, which means that after hitting a breakpoint, our process will stop running (thus producing no more tracing data) but other processes will continue writing to our trace buffers. This causes a big data loss for our trace. As a way to remediate this, I'm adding some logic to pause and unpause tracing based on the target's state. The earlier we do it the better, however, I'm not adding the trigger at the earliest possible point for simplicity of this diff. Later we can improve that part. Differential Revision: https://reviews.llvm.org/D124962
…ctor into smaller files and minor refactor IntelPTCollector is very big and has 3 classes in it. It's actually cleaner if each one has its own file. This also gives more visibility to the developer about the different kinds of "tracers" that we have. Besides that, I'm now restricting the creation of the BinaryData chunks to GetState() instead of having it in different places, which is not very clean, because the gdb-remote protocol should be as restricted as possible. Differential Revision: https://reviews.llvm.org/D125047
Sub-expressions that are logical operators are not spelled out separately in basic blocks, so we need to manually visit them when we encounter them. We do this in both the `TerminatorVisitor` (conditionally) and the `TransferVisitor` (unconditionally), which can cause cause an expression to be visited twice when the binary operators are nested 2+ times. This changes the visit in `TransferVisitor` to check if it has been evaluated before trying to visit the sub-expression. Differential Revision: https://reviews.llvm.org/D125821
After adding sprintf, snprintf is simple. The functions are very similar. The tests only cover the behavior of the max length since the sprintf tests should cover the other behavior. Reviewed By: lntue Differential Revision: https://reviews.llvm.org/D125826
Split up the BinaryLoop header and move BinaryDominatorTree into its own header, preparing it for a standalone use. Reviewed By: rafauler Differential Revision: https://reviews.llvm.org/D125664
Addresses the warnings emitted by Apple Clang 13.1.6 (Xcode 13.3.1). Tip @tschuett issue #55404. Reviewed By: rafauler Differential Revision: https://reviews.llvm.org/D125733
This diff adjusts binaryAnd to take advantage of the analysis based on KnownBits. Differential revision: https://reviews.llvm.org/D125603 Test plan: 1/ ninja check-llvm 2/ ninja check-llvm-unit
Before this fix, the bufferization implementation made the incorrect assumption that the values yielded from the "before" region must match with the values yielded from the "after" region. Differential Revision: https://reviews.llvm.org/D125835
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May 31, 2022
This reverts commit c274b6e. The x86_64 debian bot got a failure with this patch, https://lab.llvm.org/buildbot#builders/68/builds/33078 where SymbolFile/DWARF/x86/DW_TAG_variable-DW_AT_decl_file-DW_AT_abstract_origin-crosscu1.s is crashing here - #2 0x0000000000425a9f SignalHandler(int) Signals.cpp:0:0 #3 0x00007f57160e9140 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14140) #4 0x00007f570d911e43 lldb_private::SourceManager::GetFile(lldb_private::FileSpec const&) crtstuff.c:0:0 #5 0x00007f570d914270 lldb_private::SourceManager::DisplaySourceLinesWithLineNumbers(lldb_private::FileSpec const&, unsigned int, unsigned int, unsigned int, unsigned int, char const*, lldb_private::Stream*, lldb_private::SymbolContextList const*) crtstuff.c:0:0 #6 0x00007f570da662c8 lldb_private::StackFrame::GetStatus(lldb_private::Stream&, bool, bool, bool, char const*) crtstuff.c:0:0 I don't get a failure here my mac, I'll review this method more closely tomorrow.
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Jun 27, 2022
…mic types We observed a failed assert in overloaded compound-assignment operator resolution: ``` Assertion failed: (Result.isInvalid() && "C++ binary operator overloading is missing candidates!"), function CreateOverloadedBinOp, file SemaOverload.cpp, line 13944. ... frame #4: clang` clang::Sema::CreateOverloadedBinOp(..., Opc=BO_OrAssign, ..., PerformADL=true, AllowRewrittenCandidates=false, ...) at SemaOverload.cpp:13943 frame #5: clang` BuildOverloadedBinOp(..., Opc=BO_OrAssign, ...) at SemaExpr.cpp:15228 frame #6: clang` clang::Sema::BuildBinOp(..., Opc=BO_OrAssign, ...) at SemaExpr.cpp:15330 frame ROCm#7: clang` clang::Sema::ActOnBinOp(..., Kind=pipeequal, ...) at SemaExpr.cpp:15187 frame ROCm#8: clang` clang::Parser::ParseRHSOfBinaryExpression(..., MinPrec=Assignment) at ParseExpr.cpp:629 frame ROCm#9: clang` clang::Parser::ParseAssignmentExpression(..., isTypeCast=NotTypeCast) at ParseExpr.cpp:176 frame ROCm#10: clang` clang::Parser::ParseExpression(... isTypeCast=NotTypeCast) at ParseExpr.cpp:124 frame ROCm#11: clang` clang::Parser::ParseExprStatement(...) at ParseStmt.cpp:464 ``` A simple reproducer is: ``` _Atomic unsigned an_atomic_uint; enum { an_enum_value = 1 }; void enum1() { an_atomic_uint += an_enum_value; } ``` This patch fixes the issue by generating builtin operator overloads for (volatile) _Atomic types. Reviewed By: aaron.ballman Differential Revision: https://reviews.llvm.org/D125349
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Jul 13, 2022
…ned form
The DWARF spec says:
Any debugging information entry representing the declaration of an object,
module, subprogram or type may have DW_AT_decl_file, DW_AT_decl_line and
DW_AT_decl_column attributes, each of whose value is an unsigned integer
^^^^^^^^
constant.
If however, a producer happens to emit DW_AT_decl_file /
DW_AT_decl_line using a signed integer form, llvm-dwarfdump crashes,
like so:
(... snip ...)
0x000000b4: DW_TAG_structure_type
DW_AT_name ("test_struct")
DW_AT_byte_size (136)
DW_AT_decl_file (llvm-dwarfdump: (... snip ...)/llvm/include/llvm/ADT/Optional.h:197: T& llvm::optional_detail::OptionalStorage<T, true>::getValue() &
[with T = long unsigned int]: Assertion `hasVal' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0. Program arguments: /opt/rocm/llvm/bin/llvm-dwarfdump ./testsuite/outputs/gdb.rocm/lane-pc-vega20/lane-pc-vega20-kernel.so
#0 0x000055cc8e78315f PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
#1 0x000055cc8e780d3d SignalHandler(int) Signals.cpp:0:0
#2 0x00007f8f2cae8420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
#3 0x00007f8f2c58d00b raise /build/glibc-SzIz7B/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
#4 0x00007f8f2c56c859 abort /build/glibc-SzIz7B/glibc-2.31/stdlib/abort.c:81:7
#5 0x00007f8f2c56c729 get_sysdep_segment_value /build/glibc-SzIz7B/glibc-2.31/intl/loadmsgcat.c:509:8
#6 0x00007f8f2c56c729 _nl_load_domain /build/glibc-SzIz7B/glibc-2.31/intl/loadmsgcat.c:970:34
ROCm#7 0x00007f8f2c57dfd6 (/lib/x86_64-linux-gnu/libc.so.6+0x33fd6)
ROCm#8 0x000055cc8e58ceb9 llvm::DWARFDie::dump(llvm::raw_ostream&, unsigned int, llvm::DIDumpOptions) const (/opt/rocm/llvm/bin/llvm-dwarfdump+0x2e0eb9)
ROCm#9 0x000055cc8e58bec3 llvm::DWARFDie::dump(llvm::raw_ostream&, unsigned int, llvm::DIDumpOptions) const (/opt/rocm/llvm/bin/llvm-dwarfdump+0x2dfec3)
ROCm#10 0x000055cc8e5b28a3 llvm::DWARFCompileUnit::dump(llvm::raw_ostream&, llvm::DIDumpOptions) (.part.21) DWARFCompileUnit.cpp:0:0
Likewise with DW_AT_call_file / DW_AT_call_line.
The problem is that the code in llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
dumping these attributes assumes that
FormValue.getAsUnsignedConstant() returns an armed optional. If in
debug mode, we get an assertion line the above. If in release mode,
and asserts are compiled out, then we proceed as if the optional had a
value, running into undefined behavior, printing whatever random
value.
Fix this by checking whether the optional returned by
FormValue.getAsUnsignedConstant() has a value, like done in other
places.
In addition, DWARFVerifier.cpp is validating DW_AT_call_file /
DW_AT_decl_file, but not AT_call_line / DW_AT_decl_line. This commit
fixes that too.
The llvm-dwarfdump/X86/verify_file_encoding.yaml testcase is extended
to cover these cases. Current llvm-dwarfdump crashes running the
newly-extended test.
"make check-llvm-tools-llvm-dwarfdump" shows no regressions, on x86-64
GNU/Linux.
Reviewed By: dblaikie
Differential Revision: https://reviews.llvm.org/D129392
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Jul 28, 2022
When we lower dynamic stack, we need to substract pattern `x15 << 4` from sp. Subtract instruction with arith shifted register(SUBXrs) can't refer to sp. So for now we need two extra mov like: ``` mov x0, sp sub x0, x0, x15, lsl #4 mov sp, x0 ``` If we want to refer to sp in subtract instruction like this: ``` sub sp, sp, x15, lsl #4 ``` We must use arith extended register version(SUBXrx). So in this patch when we find sub have sp operand on src0, try to select to SubXrx64. Reviewed By: efriedma Differential Revision: https://reviews.llvm.org/D129932
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Aug 17, 2022
…Impl The `File` might point to an invalid `FileID` when the AST is broken. That leads to clang/clangd crashes while processing comments. The relevant part of the crash is below ``` #4 0x00007f1d7fbf95bc std::_Rb_tree<unsigned int, std::pair<unsigned int const, clang::RawComment*>, std::_Select1st<std::pair<unsigned int const, clang::RawComment*>>, std::less<unsigned int>, std::allocator<std::pair<unsigned int const , clang::RawComment*>>>::_M_lower_bound(std::_Rb_tree_node<std::pair<unsigned int const, clang::RawComment*>> const*, std::_Rb_tree_node_base const*, unsigned int const&) const /usr/include/c++/8/bits/stl_tree.h:1911:2 #5 0x00007f1d7fbf95bc std::_Rb_tree<unsigned int, std::pair<unsigned int const, clang::RawComment*>, std::_Select1st<std::pair<unsigned int const, clang::RawComment*>>, std::less<unsigned int>, std::allocator<std::pair<unsigned int const, clang::RawComment*>>>::lower_bound(unsigned int const&) const /usr/include/c++/8/bits/stl_tree.h:1214:56 #6 0x00007f1d7fbf95bc std::map<unsigned int, clang::RawComment*, std::less<unsigned int>, std::allocator<std::pair<unsigned int const, clang::RawComment*>>>::lower_bound(unsigned int const&) const /usr/include/c++/8/bits/stl_map.h:1264:36 ROCm#7 0x00007f1d7fbf95bc clang::ASTContext::getRawCommentForDeclNoCacheImpl(clang::Decl const*, clang::SourceLocation, std::map<unsigned int, clang::RawComment*, std::less<unsigned int>, std::allocator<std::pair<unsigned int const, clang::RawComment*>>> const&) const /home/ivanmurashko/local/llvm-project/clang/lib/AST/ASTContext.cpp:226:57 ``` The corresponding LIT test that reproduces the crash was also added Same issue is described at https://bugs.llvm.org/show_bug.cgi?id=49707 Reviewed By: gribozavr2 Differential Revision: https://reviews.llvm.org/D131675
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Sep 21, 2022
resolved minor merge issues in: llvm/lib/Target/AMDGPU/AMDGPUAttributor.cpp llvm/test/CodeGen/AMDGPU/hsa-metadata-enqueue-kernel-v3.ll llvm/test/CodeGen/AMDGPU/hsa-metadata-enqueue-kernel.ll llvm/test/CodeGen/AMDGPU/hsa-metadata-hidden-args-v3.ll llvm/test/CodeGen/AMDGPU/hsa-metadata-hidden-args.ll This internal version is currently a squash of four upstream reviews: 1. D119087: [AMDGPU] [NFC] refactor the AMDGPU attributor 2. D119308: [AMDGPU] [NFC] Fix incorrect use of bitwise operator. 3. D119249: [Attributor][NFC] Expose new API in AAPointerInfo 4. D119216: [AMDGPU] replace hostcall module flag with function attribute Of these #1, #2 and #3 are submitted in upstream/main, while #4 is under review. The module flag to indicate use of hostcall is insufficient to catch all cases where hostcall might be in use by a kernel. This is now replaced by a function attribute that gets propagated to top-level kernel functions via their respective call-graph. If the attribute "amdgpu-no-hostcall-ptr" is absent on a kernel, the default behaviour is to emit kernel metadata indicating that the kernel uses the hostcall buffer pointer passed as an implicit argument. The attribute may be placed explicitly by the user, or inferred by the AMDGPU attributor by examining the call-graph. The attribute is inferred only if the function is not being sanitized, and the implictarg_ptr does not result in a load of any byte in the hostcall pointer argument. Change-Id: I6cc12050602c3f477575c3ca09a883797169e9e3
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resolved minor merge issues in: llvm/lib/Target/AMDGPU/AMDGPUAttributor.cpp llvm/test/CodeGen/AMDGPU/hsa-metadata-enqueue-kernel-v3.ll llvm/test/CodeGen/AMDGPU/hsa-metadata-enqueue-kernel.ll llvm/test/CodeGen/AMDGPU/hsa-metadata-hidden-args-v3.ll llvm/test/CodeGen/AMDGPU/hsa-metadata-hidden-args.ll This internal version is currently a squash of four upstream reviews: 1. D119087: [AMDGPU] [NFC] refactor the AMDGPU attributor 2. D119308: [AMDGPU] [NFC] Fix incorrect use of bitwise operator. 3. D119249: [Attributor][NFC] Expose new API in AAPointerInfo 4. D119216: [AMDGPU] replace hostcall module flag with function attribute Of these #1, #2 and #3 are submitted in upstream/main, while #4 is under review. The module flag to indicate use of hostcall is insufficient to catch all cases where hostcall might be in use by a kernel. This is now replaced by a function attribute that gets propagated to top-level kernel functions via their respective call-graph. If the attribute "amdgpu-no-hostcall-ptr" is absent on a kernel, the default behaviour is to emit kernel metadata indicating that the kernel uses the hostcall buffer pointer passed as an implicit argument. The attribute may be placed explicitly by the user, or inferred by the AMDGPU attributor by examining the call-graph. The attribute is inferred only if the function is not being sanitized, and the implictarg_ptr does not result in a load of any byte in the hostcall pointer argument. Change-Id: I6cc12050602c3f477575c3ca09a883797169e9e3
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The Assignment Tracking debug-info feature is outlined in this RFC: https://discourse.llvm.org/t/ rfc-assignment-tracking-a-better-way-of-specifying-variable-locations-in-ir Add initial revision of assignment tracking analysis pass --------------------------------------------------------- This patch squashes five individually reviewed patches into one: #1 https://reviews.llvm.org/D136320 #2 https://reviews.llvm.org/D136321 #3 https://reviews.llvm.org/D136325 #4 https://reviews.llvm.org/D136331 #5 https://reviews.llvm.org/D136335 Patch #1 introduces 2 new files: AssignmentTrackingAnalysis.h and .cpp. The two subsequent patches modify those files only. Patch #4 plumbs the analysis into SelectionDAG, and patch #5 is a collection of tests for the analysis as a whole. The analysis was broken up into smaller chunks for review purposes but for the most part the tests were written using the whole analysis. It would be possible to break up the tests for patches #1 through #3 for the purpose of landing the patches seperately. However, most them would require an update for each patch. In addition, patch #4 - which connects the analysis to SelectionDAG - is required by all of the tests. If there is build-bot trouble, we might try a different landing sequence. Analysis problem and goal ------------------------- Variables values can be stored in memory, or available as SSA values, or both. Using the Assignment Tracking metadata, it's not possible to determine a variable location just by looking at a debug intrinsic in isolation. Instructions without any metadata can change the location of a variable. The meaning of dbg.assign intrinsics changes depending on whether there are linked instructions, and where they are relative to those instructions. So we need to analyse the IR and convert the embedded information into a form that SelectionDAG can consume to produce debug variable locations in MIR. The solution is a dataflow analysis which, aiming to maximise the memory location coverage for variables, outputs a mapping of instruction positions to variable location definitions. API usage --------- The analysis is named `AssignmentTrackingAnalysis`. It is added as a required pass for SelectionDAGISel when assignment tracking is enabled. The results of the analysis are exposed via `getResults` using the returned `const FunctionVarLocs *`'s const methods: const VarLocInfo *single_locs_begin() const; const VarLocInfo *single_locs_end() const; const VarLocInfo *locs_begin(const Instruction *Before) const; const VarLocInfo *locs_end(const Instruction *Before) const; void print(raw_ostream &OS, const Function &Fn) const; Debug intrinsics can be ignored after running the analysis. Instead, variable location definitions that occur between an instruction `Inst` and its predecessor (or block start) can be found by looping over the range: locs_begin(Inst), locs_end(Inst) Similarly, variables with a memory location that is valid for their lifetime can be iterated over using the range: single_locs_begin(), single_locs_end() Further detail -------------- For an explanation of the dataflow implementation and the integration with SelectionDAG, please see the reviews linked at the top of this commit message. Reviewed By: jmorse
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…fine.parallel verifier
This patch updates AffineParallelOp::verify() to check each result type matches
its corresponding reduction op (i.e, the result type must be a `FloatType` if
the reduction attribute is `addf`)
affine.parallel will crash on --lower-affine if the corresponding result type
cannot match the reduction attribute.
```
%128 = affine.parallel (%arg2, %arg3) = (0, 0) to (8, 7) reduce ("maxf") -> (memref<8x7xf32>) {
%alloc_33 = memref.alloc() : memref<8x7xf32>
affine.yield %alloc_33 : memref<8x7xf32>
}
```
This will crash and report a type conversion issue when we run `mlir-opt --lower-affine`
```
Assertion failed: (isa<To>(Val) && "cast<Ty>() argument of incompatible type!"), function cast, file Casting.h, line 572.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0. Program arguments: mlir-opt --lower-affine temp.mlir
#0 0x0000000102a18f18 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/workspacebin/mlir-opt+0x1002f8f18)
#1 0x0000000102a171b4 llvm::sys::RunSignalHandlers() (/workspacebin/mlir-opt+0x1002f71b4)
#2 0x0000000102a195c4 SignalHandler(int) (/workspacebin/mlir-opt+0x1002f95c4)
#3 0x00000001be7894c4 (/usr/lib/system/libsystem_platform.dylib+0x1803414c4)
#4 0x00000001be771ee0 (/usr/lib/system/libsystem_pthread.dylib+0x180329ee0)
#5 0x00000001be6ac340 (/usr/lib/system/libsystem_c.dylib+0x180264340)
#6 0x00000001be6ab754 (/usr/lib/system/libsystem_c.dylib+0x180263754)
ROCm#7 0x0000000106864790 mlir::arith::getIdentityValueAttr(mlir::arith::AtomicRMWKind, mlir::Type, mlir::OpBuilder&, mlir::Location) (.cold.4) (/workspacebin/mlir-opt+0x104144790)
ROCm#8 0x0000000102ba66ac mlir::arith::getIdentityValueAttr(mlir::arith::AtomicRMWKind, mlir::Type, mlir::OpBuilder&, mlir::Location) (/workspacebin/mlir-opt+0x1004866ac)
ROCm#9 0x0000000102ba6910 mlir::arith::getIdentityValue(mlir::arith::AtomicRMWKind, mlir::Type, mlir::OpBuilder&, mlir::Location) (/workspacebin/mlir-opt+0x100486910)
...
```
Fixes llvm#64068
Reviewed By: mehdi_amini
Differential Revision: https://reviews.llvm.org/D157985
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Oct 27, 2023
…tePluginObject After llvm#68052 this function changed from returning a nullptr with `return {};` to returning Expected and hitting `llvm_unreachable` before it could do so. I gather that we're never supposed to call this function, but on Windows we actually do call this function because `interpreter->CreateScriptedProcessInterface()` returns `ScriptedProcessInterface` not `ScriptedProcessPythonInterface`. Likely because `target_sp->GetDebugger().GetScriptInterpreter()` also does not return a Python related class. The previously XFAILed test crashed with: ``` # .---command stderr------------ # | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. # | Stack dump: # | 0. Program arguments: c:\\users\\tcwg\\david.spickett\\build-llvm\\bin\\lldb-test.exe ir-memory-map C:\\Users\\tcwg\\david.spickett\\build-llvm\\tools\\lldb\\test\\Shell\\Expr\\Output\\TestIRMemoryMapWindows.test.tmp C:\\Users\\tcwg\\david.spickett\\llvm-project\\lldb\\test\\Shell\\Expr/Inputs/ir-memory-map-basic # | 1. HandleCommand(command = "run") # | Exception Code: 0xC000001D # | #0 0x00007ff696b5f588 lldb_private::ScriptedProcessInterface::CreatePluginObject(class llvm::StringRef, class lldb_private::ExecutionContext &, class std::shared_ptr<class lldb_private::StructuredData::Dictionary>, class lldb_private::StructuredData::Generic *) C:\Users\tcwg\david.spickett\llvm-project\lldb\include\lldb\Interpreter\Interfaces\ScriptedProcessInterface.h:28:0 # | #1 0x00007ff696b1d808 llvm::Expected<std::shared_ptr<lldb_private::StructuredData::Generic> >::operator bool C:\Users\tcwg\david.spickett\llvm-project\llvm\include\llvm\Support\Error.h:567:0 # | #2 0x00007ff696b1d808 lldb_private::ScriptedProcess::ScriptedProcess(class std::shared_ptr<class lldb_private::Target>, class std::shared_ptr<class lldb_private::Listener>, class lldb_private::ScriptedMetadata const &, class lldb_private::Status &) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Plugins\Process\scripted\ScriptedProcess.cpp:115:0 # | #3 0x00007ff696b1d124 std::shared_ptr<lldb_private::ScriptedProcess>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1478:0 # | #4 0x00007ff696b1d124 lldb_private::ScriptedProcess::CreateInstance(class std::shared_ptr<class lldb_private::Target>, class std::shared_ptr<class lldb_private::Listener>, class lldb_private::FileSpec const *, bool) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Plugins\Process\scripted\ScriptedProcess.cpp:61:0 # | #5 0x00007ff69699c8f4 std::_Ptr_base<lldb_private::Process>::_Move_construct_from C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1237:0 # | #6 0x00007ff69699c8f4 std::shared_ptr<lldb_private::Process>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1534:0 # | ROCm#7 0x00007ff69699c8f4 std::shared_ptr<lldb_private::Process>::operator= C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1594:0 # | ROCm#8 0x00007ff69699c8f4 lldb_private::Process::FindPlugin(class std::shared_ptr<class lldb_private::Target>, class llvm::StringRef, class std::shared_ptr<class lldb_private::Listener>, class lldb_private::FileSpec const *, bool) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Target\Process.cpp:396:0 # | ROCm#9 0x00007ff6969bd708 std::_Ptr_base<lldb_private::Process>::_Move_construct_from C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1237:0 # | ROCm#10 0x00007ff6969bd708 std::shared_ptr<lldb_private::Process>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1534:0 # | ROCm#11 0x00007ff6969bd708 std::shared_ptr<lldb_private::Process>::operator= C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1594:0 # | ROCm#12 0x00007ff6969bd708 lldb_private::Target::CreateProcess(class std::shared_ptr<class lldb_private::Listener>, class llvm::StringRef, class lldb_private::FileSpec const *, bool) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Target\Target.cpp:215:0 # | ROCm#13 0x00007ff696b13af0 std::_Ptr_base<lldb_private::Process>::_Ptr_base C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1230:0 # | ROCm#14 0x00007ff696b13af0 std::shared_ptr<lldb_private::Process>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1524:0 # | ROCm#15 0x00007ff696b13af0 lldb_private::PlatformWindows::DebugProcess(class lldb_private::ProcessLaunchInfo &, class lldb_private::Debugger &, class lldb_private::Target &, class lldb_private::Status &) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Plugins\Platform\Windows\PlatformWindows.cpp:495:0 # | ROCm#16 0x00007ff6969cf590 std::_Ptr_base<lldb_private::Process>::_Move_construct_from C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1237:0 # | ROCm#17 0x00007ff6969cf590 std::shared_ptr<lldb_private::Process>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1534:0 # | ROCm#18 0x00007ff6969cf590 std::shared_ptr<lldb_private::Process>::operator= C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1594:0 # | ROCm#19 0x00007ff6969cf590 lldb_private::Target::Launch(class lldb_private::ProcessLaunchInfo &, class lldb_private::Stream *) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Target\Target.cpp:3274:0 # | ROCm#20 0x00007ff696fff82c CommandObjectProcessLaunch::DoExecute(class lldb_private::Args &, class lldb_private::CommandReturnObject &) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Commands\CommandObjectProcess.cpp:258:0 # | ROCm#21 0x00007ff696fab6c0 lldb_private::CommandObjectParsed::Execute(char const *, class lldb_private::CommandReturnObject &) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Interpreter\CommandObject.cpp:751:0 # `----------------------------- # error: command failed with exit status: 0xc000001d ``` That might be a bug on the Windows side, or an artifact of how our build is setup, but whatever it is, having `CreatePluginObject` return an error and the caller check it, fixes the failing test. The built lldb can run the script command to use Python, but I'm not sure if that means anything.
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Nov 8, 2023
…e defintion if available (llvm#71004)" This reverts commit ef3feba. This caused an LLDB test failure on Linux for `lang/cpp/symbols/TestSymbols.test_dwo`: ``` make: Leaving directory '/home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex/lang/cpp/symbols/TestSymbols.test_dwo' runCmd: expression -- D::i PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. Stack dump: 0. HandleCommand(command = "expression -- D::i") 1. <user expression 0>:1:4: current parser token 'i' 2. <lldb wrapper prefix>:44:1: parsing function body '$__lldb_expr' 3. <lldb wrapper prefix>:44:1: in compound statement ('{}') Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it): 0 _lldb.cpython-39-x86_64-linux-gnu.so 0x00007fbcfcb08b87 1 _lldb.cpython-39-x86_64-linux-gnu.so 0x00007fbcfcb067ae 2 _lldb.cpython-39-x86_64-linux-gnu.so 0x00007fbcfcb0923f 3 libpthread.so.0 0x00007fbd07ab7140 ``` And a failure in `TestCallStdStringFunction.py` on Linux aarch64: ``` -- Exit Code: -11 Command Output (stdout): -- lldb version 18.0.0git (https://github.com/llvm/llvm-project.git revision ef3feba) clang revision ef3feba llvm revision ef3feba -- Command Output (stderr): -- PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. Stack dump: 0. HandleCommand(command = "expression str") 1. <lldb wrapper prefix>:45:34: current parser token ';' 2. <lldb wrapper prefix>:44:1: parsing function body '$__lldb_expr' 3. <lldb wrapper prefix>:44:1: in compound statement ('{}') #0 0x0000ffffb72a149c llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_[lldb.cpython-38-aarch64-linux-gnu.so](http://lldb.cpython-38-aarch64-linux-gnu.so/)+0x58c749c) #1 0x0000ffffb729f458 llvm::sys::RunSignalHandlers() (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_[lldb.cpython-38-aarch64-linux-gnu.so](http://lldb.cpython-38-aarch64-linux-gnu.so/)+0x58c5458) #2 0x0000ffffb72a1bd0 SignalHandler(int) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_[lldb.cpython-38-aarch64-linux-gnu.so](http://lldb.cpython-38-aarch64-linux-gnu.so/)+0x58c7bd0) #3 0x0000ffffbdd9e7dc (linux-vdso.so.1+0x7dc) #4 0x0000ffffb71799d8 lldb_private::plugin::dwarf::SymbolFileDWARF::FindGlobalVariables(lldb_private::ConstString, lldb_private::CompilerDeclContext const&, unsigned int, lldb_private::VariableList&) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_[lldb.cpython-38-aarch64-linux-gnu.so](http://lldb.cpython-38-aarch64-linux-gnu.so/)+0x579f9d8) #5 0x0000ffffb7197508 DWARFASTParserClang::FindConstantOnVariableDefinition(lldb_private::plugin::dwarf::DWARFDIE) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_[lldb.cpython-38-aarch64-linux-gnu.so](http://lldb.cpython-38-aarch64-linux-gnu.so/)+0x57bd508) ```
jrbyrnes
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Nov 10, 2023
…ooking options for a custom subcommand (llvm#71975) …ooking options for a custom subcommand. (llvm#71776)" This reverts commit b88308b. The build-bot is unhappy (https://lab.llvm.org/buildbot/#/builders/186/builds/13096), `GroupingAndPrefix` fails after `TopLevelOptInSubcommand` (the newly added test). Revert while I look into this (might be related with test sharding but not sure) ``` [----------] 3 tests from CommandLineTest [ RUN ] CommandLineTest.TokenizeWindowsCommandLine2 [ OK ] CommandLineTest.TokenizeWindowsCommandLine2 (0 ms) [ RUN ] CommandLineTest.TopLevelOptInSubcommand [ OK ] CommandLineTest.TopLevelOptInSubcommand (0 ms) [ RUN ] CommandLineTest.GroupingAndPrefix #0 0x00ba8118 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x594118) #1 0x00ba5914 llvm::sys::RunSignalHandlers() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x591914) #2 0x00ba89c4 SignalHandler(int) (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5949c4) #3 0xf7828530 __default_sa_restorer /build/glibc-9MGTF6/glibc-2.31/signal/../sysdeps/unix/sysv/linux/arm/sigrestorer.S:67:0 #4 0x00af91f0 (anonymous namespace)::CommandLineParser::ResetAllOptionOccurrences() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x4e51f0) #5 0x00af8e1c llvm::cl::ResetCommandLineParser() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x4e4e1c) #6 0x0077cda0 (anonymous namespace)::CommandLineTest_GroupingAndPrefix_Test::TestBody() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x168da0) ROCm#7 0x00bc5adc testing::Test::Run() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5b1adc) ROCm#8 0x00bc6cc0 testing::TestInfo::Run() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5b2cc0) ROCm#9 0x00bc7880 testing::TestSuite::Run() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5b3880) ROCm#10 0x00bd7974 testing::internal::UnitTestImpl::RunAllTests() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5c3974) ROCm#11 0x00bd6ebc testing::UnitTest::Run() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5c2ebc) ROCm#12 0x00bb1058 main (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x59d058) ROCm#13 0xf78185a4 __libc_start_main /build/glibc-9MGTF6/glibc-2.31/csu/libc-start.c:342:3 ```
jrbyrnes
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Dec 14, 2023
… on (llvm#74207) lld string tail merging interacts badly with ASAN on Windows, as is reported in llvm#62078. A similar error was found when building LLVM with `-DLLVM_USE_SANITIZER=Address`: ```console [2/2] Building GenVT.inc... FAILED: include/llvm/CodeGen/GenVT.inc C:/Dev/llvm-project/Build_asan/include/llvm/CodeGen/GenVT.inc cmd.exe /C "cd /D C:\Dev\llvm-project\Build_asan && C:\Dev\llvm-project\Build_asan\bin\llvm-min-tblgen.exe -gen-vt -I C:/Dev/llvm-project/llvm/include/llvm/CodeGen -IC:/Dev/llvm-project/Build_asan/include -IC:/Dev/llvm-project/llvm/include C:/Dev/llvm-project/llvm/include/llvm/CodeGen/ValueTypes.td --write-if-changed -o include/llvm/CodeGen/GenVT.inc -d include/llvm/CodeGen/GenVT.inc.d" ================================================================= ==31944==ERROR: AddressSanitizer: global-buffer-overflow on address 0x7ff6cff80d20 at pc 0x7ff6cfcc7378 bp 0x00e8bcb8e990 sp 0x00e8bcb8e9d8 READ of size 1 at 0x7ff6cff80d20 thread T0 #0 0x7ff6cfcc7377 in strlen (C:\Dev\llvm-project\Build_asan\bin\llvm-min-tblgen.exe+0x1400a7377) #1 0x7ff6cfde50c2 in operator delete(void *, unsigned __int64) (C:\Dev\llvm-project\Build_asan\bin\llvm-min-tblgen.exe+0x1401c50c2) #2 0x7ff6cfdd75ef in operator delete(void *, unsigned __int64) (C:\Dev\llvm-project\Build_asan\bin\llvm-min-tblgen.exe+0x1401b75ef) #3 0x7ff6cfde59f9 in operator delete(void *, unsigned __int64) (C:\Dev\llvm-project\Build_asan\bin\llvm-min-tblgen.exe+0x1401c59f9) #4 0x7ff6cff03f6c in operator delete(void *, unsigned __int64) (C:\Dev\llvm-project\Build_asan\bin\llvm-min-tblgen.exe+0x1402e3f6c) #5 0x7ff6cfefbcbc in operator delete(void *, unsigned __int64) (C:\Dev\llvm-project\Build_asan\bin\llvm-min-tblgen.exe+0x1402dbcbc) #6 0x7ffb7f247343 (C:\WINDOWS\System32\KERNEL32.DLL+0x180017343) ROCm#7 0x7ffb800826b0 (C:\WINDOWS\SYSTEM32\ntdll.dll+0x1800526b0) 0x7ff6cff80d20 is located 31 bytes after global variable '"#error \"ArgKind is not defined\"\n"...' defined in 'C:\Dev\llvm-project\llvm\utils\TableGen\IntrinsicEmitter.cpp' (0x7ff6cff80ce0) of size 33 '"#error \"ArgKind is not defined\"\n"...' is ascii string '#error "ArgKind is not defined" ' 0x7ff6cff80d20 is located 0 bytes inside of global variable '""' defined in 'C:\Dev\llvm-project\llvm\utils\TableGen\IntrinsicEmitter.cpp' (0x7ff6cff80d20) of size 1 '""' is ascii string '' SUMMARY: AddressSanitizer: global-buffer-overflow (C:\Dev\llvm-project\Build_asan\bin\llvm-min-tblgen.exe+0x1400a7377) in strlen Shadow bytes around the buggy address: 0x7ff6cff80a80: 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 01 f9 f9 f9 0x7ff6cff80b00: f9 f9 f9 f9 00 00 00 00 00 00 00 00 01 f9 f9 f9 0x7ff6cff80b80: f9 f9 f9 f9 00 00 00 00 01 f9 f9 f9 f9 f9 f9 f9 0x7ff6cff80c00: 00 00 00 00 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 0x7ff6cff80c80: 00 00 00 00 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 =>0x7ff6cff80d00: 01 f9 f9 f9[f9]f9 f9 f9 00 00 00 00 00 00 00 00 0x7ff6cff80d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x7ff6cff80e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x7ff6cff80e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x7ff6cff80f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x7ff6cff80f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb ==31944==ABORTING ``` This is reproducible with the 17.0.3 release: ```console $ clang-cl --version clang version 17.0.3 Target: x86_64-pc-windows-msvc Thread model: posix InstalledDir: C:\Program Files\LLVM\bin $ cmake -S llvm -B Build -G Ninja -DLLVM_USE_SANITIZER=Address -DCMAKE_C_COMPILER=clang-cl -DCMAKE_CXX_COMPILER=clang-cl -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded -DCMAKE_BUILD_TYPE=Release $ cd Build $ ninja all ```
jrbyrnes
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Internal builds of the unittests with msan flagged mempcpy_test.
==6862==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x55e34d7d734a in length
llvm-project/libc/src/__support/CPP/string_view.h:41:11
#1 0x55e34d7d734a in string_view
llvm-project/libc/src/__support/CPP/string_view.h:71:24
#2 0x55e34d7d734a in
__llvm_libc_9999_0_0_git::testing::Test::testStrEq(char const*, char
const*, char const*, char const*,
__llvm_libc_9999_0_0_git::testing::internal::Location)
llvm-project/libc/test/UnitTest/LibcTest.cpp:284:13
#3 0x55e34d7d4e09 in LlvmLibcMempcpyTest_Simple::Run()
llvm-project/libc/test/src/string/mempcpy_test.cpp:20:3
#4 0x55e34d7d6dff in
__llvm_libc_9999_0_0_git::testing::Test::runTests(char const*)
llvm-project/libc/test/UnitTest/LibcTest.cpp:133:8
#5 0x55e34d7d86e0 in main
llvm-project/libc/test/UnitTest/LibcTestMain.cpp:21:10
SUMMARY: MemorySanitizer: use-of-uninitialized-value
llvm-project/libc/src/__support/CPP/string_view.h:41:11 in length
What's going on here is that mempcpy_test.cpp's Simple test is using
ASSERT_STREQ with a partially initialized char array. ASSERT_STREQ calls
Test::testStrEq which constructs a cpp:string_view. That constructor
calls the
private method cpp::string_view::length. When built with msan, the loop
is
transformed into multi-byte access, which then fails upon access.
I took a look at libc++'s __constexpr_strlen which just calls
__builtin_strlen(). Replacing the implementation of
cpp::string_view::length
with a call to __builtin_strlen() may still result in out of bounds
access when
the test is built with msan.
It's not safe to use ASSERT_STREQ with a partially initialized array.
Initialize the whole array so that the test passes.
jrbyrnes
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Jan 10, 2024
We'd like a way to select the current thread by its thread ID (rather than its internal LLDB thread index). This PR adds a `-t` option (`--thread_id` long option) that tells the `thread select` command to interpret the `<thread-index>` argument as a thread ID. Here's an example of it working: ``` michristensen@devbig356 llvm/llvm-project (thread-select-tid) » ../Debug/bin/lldb ~/scratch/cpp/threading/a.out (lldb) target create "/home/michristensen/scratch/cpp/threading/a.out" Current executable set to '/home/michristensen/scratch/cpp/threading/a.out' (x86_64). (lldb) b 18 Breakpoint 1: where = a.out`main + 80 at main.cpp:18:12, address = 0x0000000000000850 (lldb) run Process 215715 launched: '/home/michristensen/scratch/cpp/threading/a.out' (x86_64) This is a thread, i=1 This is a thread, i=2 This is a thread, i=3 This is a thread, i=4 This is a thread, i=5 Process 215715 stopped * thread #1, name = 'a.out', stop reason = breakpoint 1.1 frame #0: 0x0000555555400850 a.out`main at main.cpp:18:12 15 for (int i = 0; i < 5; i++) { 16 pthread_create(&thread_ids[i], NULL, foo, NULL); 17 } -> 18 for (int i = 0; i < 5; i++) { 19 pthread_join(thread_ids[i], NULL); 20 } 21 return 0; (lldb) thread select 2 * thread #2, name = 'a.out' frame #0: 0x00007ffff68f9918 libc.so.6`__nanosleep + 72 libc.so.6`__nanosleep: -> 0x7ffff68f9918 <+72>: cmpq $-0x1000, %rax ; imm = 0xF000 0x7ffff68f991e <+78>: ja 0x7ffff68f9952 ; <+130> 0x7ffff68f9920 <+80>: movl %edx, %edi 0x7ffff68f9922 <+82>: movl %eax, 0xc(%rsp) (lldb) thread info thread #2: tid = 216047, 0x00007ffff68f9918 libc.so.6`__nanosleep + 72, name = 'a.out' (lldb) thread list Process 215715 stopped thread #1: tid = 215715, 0x0000555555400850 a.out`main at main.cpp:18:12, name = 'a.out', stop reason = breakpoint 1.1 * thread #2: tid = 216047, 0x00007ffff68f9918 libc.so.6`__nanosleep + 72, name = 'a.out' thread #3: tid = 216048, 0x00007ffff68f9918 libc.so.6`__nanosleep + 72, name = 'a.out' thread #4: tid = 216049, 0x00007ffff68f9918 libc.so.6`__nanosleep + 72, name = 'a.out' thread #5: tid = 216050, 0x00007ffff68f9918 libc.so.6`__nanosleep + 72, name = 'a.out' thread #6: tid = 216051, 0x00007ffff68f9918 libc.so.6`__nanosleep + 72, name = 'a.out' (lldb) thread select 215715 error: invalid thread #215715. (lldb) thread select -t 215715 * thread #1, name = 'a.out', stop reason = breakpoint 1.1 frame #0: 0x0000555555400850 a.out`main at main.cpp:18:12 15 for (int i = 0; i < 5; i++) { 16 pthread_create(&thread_ids[i], NULL, foo, NULL); 17 } -> 18 for (int i = 0; i < 5; i++) { 19 pthread_join(thread_ids[i], NULL); 20 } 21 return 0; (lldb) thread select -t 216051 * thread #6, name = 'a.out' frame #0: 0x00007ffff68f9918 libc.so.6`__nanosleep + 72 libc.so.6`__nanosleep: -> 0x7ffff68f9918 <+72>: cmpq $-0x1000, %rax ; imm = 0xF000 0x7ffff68f991e <+78>: ja 0x7ffff68f9952 ; <+130> 0x7ffff68f9920 <+80>: movl %edx, %edi 0x7ffff68f9922 <+82>: movl %eax, 0xc(%rsp) (lldb) thread select 3 * thread #3, name = 'a.out' frame #0: 0x00007ffff68f9918 libc.so.6`__nanosleep + 72 libc.so.6`__nanosleep: -> 0x7ffff68f9918 <+72>: cmpq $-0x1000, %rax ; imm = 0xF000 0x7ffff68f991e <+78>: ja 0x7ffff68f9952 ; <+130> 0x7ffff68f9920 <+80>: movl %edx, %edi 0x7ffff68f9922 <+82>: movl %eax, 0xc(%rsp) (lldb) thread select -t 216048 * thread #3, name = 'a.out' frame #0: 0x00007ffff68f9918 libc.so.6`__nanosleep + 72 libc.so.6`__nanosleep: -> 0x7ffff68f9918 <+72>: cmpq $-0x1000, %rax ; imm = 0xF000 0x7ffff68f991e <+78>: ja 0x7ffff68f9952 ; <+130> 0x7ffff68f9920 <+80>: movl %edx, %edi 0x7ffff68f9922 <+82>: movl %eax, 0xc(%rsp) (lldb) thread select --thread_id 216048 * thread #3, name = 'a.out' frame #0: 0x00007ffff68f9918 libc.so.6`__nanosleep + 72 libc.so.6`__nanosleep: -> 0x7ffff68f9918 <+72>: cmpq $-0x1000, %rax ; imm = 0xF000 0x7ffff68f991e <+78>: ja 0x7ffff68f9952 ; <+130> 0x7ffff68f9920 <+80>: movl %edx, %edi 0x7ffff68f9922 <+82>: movl %eax, 0xc(%rsp) (lldb) help thread select Change the currently selected thread. Syntax: thread select <cmd-options> <thread-index> Command Options Usage: thread select [-t] <thread-index> -t ( --thread_id ) Provide a thread ID instead of a thread index. This command takes options and free-form arguments. If your arguments resemble option specifiers (i.e., they start with a - or --), you must use ' -- ' between the end of the command options and the beginning of the arguments. (lldb) c Process 215715 resuming Process 215715 exited with status = 0 (0x00000000) ```
jrbyrnes
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Jan 10, 2024
This has been flaky for a while, for example https://lab.llvm.org/buildbot/#/builders/96/builds/50350 ``` Command Output (stdout): -- lldb version 18.0.0git (https://github.com/llvm/llvm-project.git revision 3974d89) clang revision 3974d89 llvm revision 3974d89 "can't evaluate expressions when the process is running." ``` ``` PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. #0 0x0000ffffa46191a0 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x529a1a0) #1 0x0000ffffa4617144 llvm::sys::RunSignalHandlers() (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x5298144) #2 0x0000ffffa46198d0 SignalHandler(int) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x529a8d0) #3 0x0000ffffab25b7dc (linux-vdso.so.1+0x7dc) #4 0x0000ffffab13d050 /build/glibc-Q8DG8B/glibc-2.31/string/../sysdeps/aarch64/multiarch/memcpy_advsimd.S:92:0 #5 0x0000ffffa446f420 lldb_private::process_gdb_remote::GDBRemoteRegisterContext::PrivateSetRegisterValue(unsigned int, llvm::ArrayRef<unsigned char>) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x50f0420) #6 0x0000ffffa446f7b8 lldb_private::process_gdb_remote::GDBRemoteRegisterContext::GetPrimordialRegister(lldb_private::RegisterInfo const*, lldb_private::process_gdb_remote::GDBRemoteCommunicationClient&) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x50f07b8) ROCm#7 0x0000ffffa446f308 lldb_private::process_gdb_remote::GDBRemoteRegisterContext::ReadRegisterBytes(lldb_private::RegisterInfo const*) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x50f0308) ROCm#8 0x0000ffffa446ec1c lldb_private::process_gdb_remote::GDBRemoteRegisterContext::ReadRegister(lldb_private::RegisterInfo const*, lldb_private::RegisterValue&) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x50efc1c) ROCm#9 0x0000ffffa412eaa4 lldb_private::RegisterContext::ReadRegisterAsUnsigned(lldb_private::RegisterInfo const*, unsigned long) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x4dafaa4) ROCm#10 0x0000ffffa420861c ReadLinuxProcessAddressMask(std::shared_ptr<lldb_private::Process>, llvm::StringRef) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x4e8961c) ROCm#11 0x0000ffffa4208430 ABISysV_arm64::FixCodeAddress(unsigned long) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x4e89430) ``` Judging by the backtrace something is trying to read the pointer authentication address/code mask registers. This explains why I've not seen this issue locally, as the buildbot runs on Graviton 3 with has the pointer authentication extension. I will try to reproduce, fix and re-enable the test.
jrbyrnes
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Jan 23, 2024
…vm#75394) Calling one of pthread join/detach interceptor on an already joined/detached thread causes asserts such as: AddressSanitizer: CHECK failed: sanitizer_thread_arg_retval.cpp:56 "((t)) != (0)" (0x0, 0x0) (tid=1236094) #0 0x555555634f8b in __asan::CheckUnwind() compiler-rt/lib/asan/asan_rtl.cpp:69:3 #1 0x55555564e06e in __sanitizer::CheckFailed(char const*, int, char const*, unsigned long long, unsigned long long) compiler-rt/lib/sanitizer_common/sanitizer_termination.cpp:86:24 #2 0x5555556491df in __sanitizer::ThreadArgRetval::BeforeJoin(unsigned long) const compiler-rt/lib/sanitizer_common/sanitizer_thread_arg_retval.cpp:56:3 #3 0x5555556198ed in Join<___interceptor_pthread_tryjoin_np(void*, void**)::<lambda()> > compiler-rt/lib/asan/../sanitizer_common/sanitizer_thread_arg_retval.h:74:26 #4 0x5555556198ed in pthread_tryjoin_np compiler-rt/lib/asan/asan_interceptors.cpp:311:29 The assert are replaced by error codes.
jrbyrnes
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Feb 19, 2024
The concurrent tests all do a pthread_join at the end, and concurrent_base.py stops after that pthread_join and sanity checks that only 1 thread is running. On macOS, after pthread_join() has completed, there can be an extra thread still running which is completing the details of that task asynchronously; this causes testsuite failures. When this happens, we see the second thread is in ``` frame #0: 0x0000000180ce7700 libsystem_kernel.dylib`__ulock_wake + 8 frame #1: 0x0000000180d25ad4 libsystem_pthread.dylib`_pthread_joiner_wake + 52 frame #2: 0x0000000180d23c18 libsystem_pthread.dylib`_pthread_terminate + 384 frame #3: 0x0000000180d23a98 libsystem_pthread.dylib`_pthread_terminate_invoke + 92 frame #4: 0x0000000180d26740 libsystem_pthread.dylib`_pthread_exit + 112 frame #5: 0x0000000180d26040 libsystem_pthread.dylib`_pthread_start + 148 ``` there are none of the functions from the test file present on this thread. In this patch, instead of counting the number of threads, I iterate over the threads looking for functions from our test file (by name) and only count threads that have at least one of them. It's a lower frequency failure than the darwin kernel bug causing an extra step instruction mach exception when hardware breakpoint/watchpoints are used, but once I fixed that, this came up as the next most common failure for these tests. rdar://110555062
jrbyrnes
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Feb 27, 2024
…lvm#80904)" This reverts commit b1ac052. This commit breaks coroutine splitting for non-swift calling convention functions. In this example: ```ll ; ModuleID = 'repro.ll' source_filename = "stdlib/test/runtime/test_llcl.mojo" target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" @0 = internal constant { i32, i32 } { i32 trunc (i64 sub (i64 ptrtoint (ptr @craSH to i64), i64 ptrtoint (ptr getelementptr inbounds ({ i32, i32 }, ptr @0, i32 0, i32 1) to i64)) to i32), i32 64 } define dso_local void @af_suspend_fn(ptr %0, i64 %1, ptr %2) #0 { ret void } define dso_local void @craSH(ptr %0) #0 { %2 = call token @llvm.coro.id.async(i32 64, i32 8, i32 0, ptr @0) %3 = call ptr @llvm.coro.begin(token %2, ptr null) %4 = getelementptr inbounds { ptr, { ptr, ptr }, i64, { ptr, i1 }, i64, i64 }, ptr poison, i32 0, i32 0 %5 = call ptr @llvm.coro.async.resume() store ptr %5, ptr %4, align 8 %6 = call { ptr, ptr, ptr } (i32, ptr, ptr, ...) @llvm.coro.suspend.async.sl_p0p0p0s(i32 0, ptr %5, ptr @ctxt_proj_fn, ptr @af_suspend_fn, ptr poison, i64 -1, ptr poison) ret void } define dso_local ptr @ctxt_proj_fn(ptr %0) #0 { ret ptr %0 } ; Function Attrs: nomerge nounwind declare { ptr, ptr, ptr } @llvm.coro.suspend.async.sl_p0p0p0s(i32, ptr, ptr, ...) #1 ; Function Attrs: nounwind declare token @llvm.coro.id.async(i32, i32, i32, ptr) #2 ; Function Attrs: nounwind declare ptr @llvm.coro.begin(token, ptr writeonly) #2 ; Function Attrs: nomerge nounwind declare ptr @llvm.coro.async.resume() #1 attributes #0 = { "target-features"="+adx,+aes,+avx,+avx2,+bmi,+bmi2,+clflushopt,+clwb,+clzero,+crc32,+cx16,+cx8,+f16c,+fma,+fsgsbase,+fxsr,+invpcid,+lzcnt,+mmx,+movbe,+mwaitx,+pclmul,+pku,+popcnt,+prfchw,+rdpid,+rdpru,+rdrnd,+rdseed,+sahf,+sha,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+sse4a,+ssse3,+vaes,+vpclmulqdq,+wbnoinvd,+x87,+xsave,+xsavec,+xsaveopt,+xsaves" } attributes #1 = { nomerge nounwind } attributes #2 = { nounwind } ``` This verifier crashes after the `coro-split` pass with ``` cannot guarantee tail call due to mismatched parameter counts musttail call void @af_suspend_fn(ptr poison, i64 -1, ptr poison) LLVM ERROR: Broken function PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. Stack dump: 0. Program arguments: opt ../../../reduced.ll -O0 #0 0x00007f1d89645c0e __interceptor_backtrace.part.0 /build/gcc-11-XeT9lY/gcc-11-11.4.0/build/x86_64-linux-gnu/libsanitizer/asan/../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:4193:28 #1 0x0000556d94d254f7 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Support/Unix/Signals.inc:723:22 #2 0x0000556d94d19a2f llvm::sys::RunSignalHandlers() /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Support/Signals.cpp:105:20 #3 0x0000556d94d1aa42 SignalHandler(int) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Support/Unix/Signals.inc:371:36 #4 0x00007f1d88e42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520) #5 0x00007f1d88e969fc __pthread_kill_implementation ./nptl/pthread_kill.c:44:76 #6 0x00007f1d88e969fc __pthread_kill_internal ./nptl/pthread_kill.c:78:10 ROCm#7 0x00007f1d88e969fc pthread_kill ./nptl/pthread_kill.c:89:10 ROCm#8 0x00007f1d88e42476 gsignal ./signal/../sysdeps/posix/raise.c:27:6 ROCm#9 0x00007f1d88e287f3 abort ./stdlib/abort.c:81:7 ROCm#10 0x0000556d8944be01 std::vector<llvm::json::Value, std::allocator<llvm::json::Value>>::size() const /usr/include/c++/11/bits/stl_vector.h:919:40 ROCm#11 0x0000556d8944be01 bool std::operator==<llvm::json::Value, std::allocator<llvm::json::Value>>(std::vector<llvm::json::Value, std::allocator<llvm::json::Value>> const&, std::vector<llvm::json::Value, std::allocator<llvm::json::Value>> const&) /usr/include/c++/11/bits/stl_vector.h:1893:23 ROCm#12 0x0000556d8944be01 llvm::json::operator==(llvm::json::Array const&, llvm::json::Array const&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/Support/JSON.h:572:69 ROCm#13 0x0000556d8944be01 llvm::json::operator==(llvm::json::Value const&, llvm::json::Value const&) (.cold) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Support/JSON.cpp:204:28 ROCm#14 0x0000556d949ed2bd llvm::report_fatal_error(char const*, bool) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Support/ErrorHandling.cpp:82:70 ROCm#15 0x0000556d8e37e876 llvm::SmallVectorBase<unsigned int>::size() const /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallVector.h:91:32 ROCm#16 0x0000556d8e37e876 llvm::SmallVectorTemplateCommon<llvm::DiagnosticInfoOptimizationBase::Argument, void>::end() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallVector.h:282:41 ROCm#17 0x0000556d8e37e876 llvm::SmallVector<llvm::DiagnosticInfoOptimizationBase::Argument, 4u>::~SmallVector() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallVector.h:1215:24 ROCm#18 0x0000556d8e37e876 llvm::DiagnosticInfoOptimizationBase::~DiagnosticInfoOptimizationBase() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/DiagnosticInfo.h:413:7 ROCm#19 0x0000556d8e37e876 llvm::DiagnosticInfoIROptimization::~DiagnosticInfoIROptimization() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/DiagnosticInfo.h:622:7 ROCm#20 0x0000556d8e37e876 llvm::OptimizationRemark::~OptimizationRemark() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/DiagnosticInfo.h:689:7 ROCm#21 0x0000556d8e37e876 operator() /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Transforms/Coroutines/CoroSplit.cpp:2213:14 ROCm#22 0x0000556d8e37e876 emit<llvm::CoroSplitPass::run(llvm::LazyCallGraph::SCC&, llvm::CGSCCAnalysisManager&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&)::<lambda()> > /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/Analysis/OptimizationRemarkEmitter.h:83:12 ROCm#23 0x0000556d8e37e876 llvm::CoroSplitPass::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Transforms/Coroutines/CoroSplit.cpp:2212:13 ROCm#24 0x0000556d8c36ecb1 llvm::detail::PassModel<llvm::LazyCallGraph::SCC, llvm::CoroSplitPass, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/PassManagerInternal.h:91:3 ROCm#25 0x0000556d91c1a84f llvm::PassManager<llvm::LazyCallGraph::SCC, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Analysis/CGSCCPassManager.cpp:90:12 ROCm#26 0x0000556d8c3690d1 llvm::detail::PassModel<llvm::LazyCallGraph::SCC, llvm::PassManager<llvm::LazyCallGraph::SCC, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/PassManagerInternal.h:91:3 ROCm#27 0x0000556d91c2162d llvm::ModuleToPostOrderCGSCCPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Analysis/CGSCCPassManager.cpp:278:18 ROCm#28 0x0000556d8c369035 llvm::detail::PassModel<llvm::Module, llvm::ModuleToPostOrderCGSCCPassAdaptor, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/PassManagerInternal.h:91:3 ROCm#29 0x0000556d9457abc5 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/PassManager.h:247:20 ROCm#30 0x0000556d8e30979e llvm::CoroConditionalWrapper::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Transforms/Coroutines/CoroConditionalWrapper.cpp:19:74 ROCm#31 0x0000556d8c365755 llvm::detail::PassModel<llvm::Module, llvm::CoroConditionalWrapper, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/PassManagerInternal.h:91:3 ROCm#32 0x0000556d9457abc5 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/PassManager.h:247:20 ROCm#33 0x0000556d89818556 llvm::SmallPtrSetImplBase::isSmall() const /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:196:33 ROCm#34 0x0000556d89818556 llvm::SmallPtrSetImplBase::~SmallPtrSetImplBase() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:84:17 ROCm#35 0x0000556d89818556 llvm::SmallPtrSetImpl<llvm::AnalysisKey*>::~SmallPtrSetImpl() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:321:7 ROCm#36 0x0000556d89818556 llvm::SmallPtrSet<llvm::AnalysisKey*, 2u>::~SmallPtrSet() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:427:7 ROCm#37 0x0000556d89818556 llvm::PreservedAnalyses::~PreservedAnalyses() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/Analysis.h:109:7 ROCm#38 0x0000556d89818556 llvm::runPassPipeline(llvm::StringRef, llvm::Module&, llvm::TargetMachine*, llvm::TargetLibraryInfoImpl*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::StringRef, llvm::ArrayRef<llvm::PassPlugin>, llvm::ArrayRef<std::function<void (llvm::PassBuilder&)>>, llvm::opt_tool::OutputKind, llvm::opt_tool::VerifierKind, bool, bool, bool, bool, bool, bool, bool) /home/ubuntu/modular/third-party/llvm-project/llvm/tools/opt/NewPMDriver.cpp:532:10 ROCm#39 0x0000556d897e3939 optMain /home/ubuntu/modular/third-party/llvm-project/llvm/tools/opt/optdriver.cpp:737:27 ROCm#40 0x0000556d89455461 main /home/ubuntu/modular/third-party/llvm-project/llvm/tools/opt/opt.cpp:25:33 ROCm#41 0x00007f1d88e29d90 __libc_start_call_main ./csu/../sysdeps/nptl/libc_start_call_main.h:58:16 ROCm#42 0x00007f1d88e29e40 call_init ./csu/../csu/libc-start.c:128:20 ROCm#43 0x00007f1d88e29e40 __libc_start_main ./csu/../csu/libc-start.c:379:5 ROCm#44 0x0000556d897b6335 _start (/home/ubuntu/modular/.derived/third-party/llvm-project/build-relwithdebinfo-asan/bin/opt+0x150c335) Aborted (core dumped)
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Mar 14, 2024
TestCases/Misc/Linux/sigaction.cpp fails because dlsym() may call malloc on failure. And then the wrapped malloc appears to access thread local storage using global dynamic accesses, thus calling ___interceptor___tls_get_addr, before REAL(__tls_get_addr) has been set, so we get a crash inside ___interceptor___tls_get_addr. For example, this can happen when looking up __isoc23_scanf which might not exist in some libcs. Fix this by marking the thread local variable accessed inside the debug checks as "initial-exec", which does not require __tls_get_addr. This is probably a better alternative to llvm#83886. This fixes a different crash but is related to llvm#46204. Backtrace: ``` #0 0x0000000000000000 in ?? () #1 0x00007ffff6a9d89e in ___interceptor___tls_get_addr (arg=0x7ffff6b27be8) at /path/to/llvm/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:2759 #2 0x00007ffff6a46bc6 in __sanitizer::CheckedMutex::LockImpl (this=0x7ffff6b27be8, pc=140737331846066) at /path/to/llvm/compiler-rt/lib/sanitizer_common/sanitizer_mutex.cpp:218 #3 0x00007ffff6a448b2 in __sanitizer::CheckedMutex::Lock (this=0x7ffff6b27be8, this@entry=0x730000000580) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_mutex.h:129 #4 __sanitizer::Mutex::Lock (this=0x7ffff6b27be8, this@entry=0x730000000580) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_mutex.h:167 #5 0x00007ffff6abdbb2 in __sanitizer::GenericScopedLock<__sanitizer::Mutex>::GenericScopedLock (mu=0x730000000580, this=<optimized out>) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_mutex.h:383 #6 __sanitizer::SizeClassAllocator64<__tsan::AP64>::GetFromAllocator (this=0x7ffff7487dc0 <__tsan::allocator_placeholder>, stat=stat@entry=0x7ffff570db68, class_id=11, chunks=chunks@entry=0x7ffff5702cc8, n_chunks=n_chunks@entry=128) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_allocator_primary64.h:207 ROCm#7 0x00007ffff6abdaa0 in __sanitizer::SizeClassAllocator64LocalCache<__sanitizer::SizeClassAllocator64<__tsan::AP64> >::Refill (this=<optimized out>, c=c@entry=0x7ffff5702cb8, allocator=<optimized out>, class_id=<optimized out>) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_allocator_local_cache.h:103 ROCm#8 0x00007ffff6abd731 in __sanitizer::SizeClassAllocator64LocalCache<__sanitizer::SizeClassAllocator64<__tsan::AP64> >::Allocate (this=0x7ffff6b27be8, allocator=0x7ffff5702cc8, class_id=140737311157448) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_allocator_local_cache.h:39 ROCm#9 0x00007ffff6abc397 in __sanitizer::CombinedAllocator<__sanitizer::SizeClassAllocator64<__tsan::AP64>, __sanitizer::LargeMmapAllocatorPtrArrayDynamic>::Allocate (this=0x7ffff5702cc8, cache=0x7ffff6b27be8, size=<optimized out>, size@entry=175, alignment=alignment@entry=16) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_allocator_combined.h:69 ROCm#10 0x00007ffff6abaa6a in __tsan::user_alloc_internal (thr=0x7ffff7ebd980, pc=140737331499943, sz=sz@entry=175, align=align@entry=16, signal=true) at /path/to/llvm/compiler-rt/lib/tsan/rtl/tsan_mman.cpp:198 ROCm#11 0x00007ffff6abb0d1 in __tsan::user_alloc (thr=0x7ffff6b27be8, pc=140737331846066, sz=11, sz@entry=175) at /path/to/llvm/compiler-rt/lib/tsan/rtl/tsan_mman.cpp:223 ROCm#12 0x00007ffff6a693b5 in ___interceptor_malloc (size=175) at /path/to/llvm/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:666 ROCm#13 0x00007ffff7fce7f2 in malloc (size=175) at ../include/rtld-malloc.h:56 ROCm#14 __GI__dl_exception_create_format (exception=exception@entry=0x7fffffffd0d0, objname=0x7ffff7fc3550 "/path/to/llvm/compiler-rt/cmake-build-all-sanitizers/lib/linux/libclang_rt.tsan-x86_64.so", fmt=fmt@entry=0x7ffff7ff2db9 "undefined symbol: %s%s%s") at ./elf/dl-exception.c:157 ROCm#15 0x00007ffff7fd50e8 in _dl_lookup_symbol_x (undef_name=0x7ffff6af868b "__isoc23_scanf", undef_map=<optimized out>, ref=0x7fffffffd148, symbol_scope=<optimized out>, version=<optimized out>, type_class=0, flags=2, skip_map=0x7ffff7fc35e0) at ./elf/dl-lookup.c:793 --Type <RET> for more, q to quit, c to continue without paging-- ROCm#16 0x00007ffff656d6ed in do_sym (handle=<optimized out>, name=0x7ffff6af868b "__isoc23_scanf", who=0x7ffff6a3bb84 <__interception::InterceptFunction(char const*, unsigned long*, unsigned long, unsigned long)+36>, vers=vers@entry=0x0, flags=flags@entry=2) at ./elf/dl-sym.c:146 ROCm#17 0x00007ffff656d9dd in _dl_sym (handle=<optimized out>, name=<optimized out>, who=<optimized out>) at ./elf/dl-sym.c:195 ROCm#18 0x00007ffff64a2854 in dlsym_doit (a=a@entry=0x7fffffffd3b0) at ./dlfcn/dlsym.c:40 ROCm#19 0x00007ffff7fcc489 in __GI__dl_catch_exception (exception=exception@entry=0x7fffffffd310, operate=0x7ffff64a2840 <dlsym_doit>, args=0x7fffffffd3b0) at ./elf/dl-catch.c:237 ROCm#20 0x00007ffff7fcc5af in _dl_catch_error (objname=0x7fffffffd368, errstring=0x7fffffffd370, mallocedp=0x7fffffffd367, operate=<optimized out>, args=<optimized out>) at ./elf/dl-catch.c:256 ROCm#21 0x00007ffff64a2257 in _dlerror_run (operate=operate@entry=0x7ffff64a2840 <dlsym_doit>, args=args@entry=0x7fffffffd3b0) at ./dlfcn/dlerror.c:138 ROCm#22 0x00007ffff64a28e5 in dlsym_implementation (dl_caller=<optimized out>, name=<optimized out>, handle=<optimized out>) at ./dlfcn/dlsym.c:54 ROCm#23 ___dlsym (handle=<optimized out>, name=<optimized out>) at ./dlfcn/dlsym.c:68 ROCm#24 0x00007ffff6a3bb84 in __interception::GetFuncAddr (name=0x7ffff6af868b "__isoc23_scanf", trampoline=140737311157448) at /path/to/llvm/compiler-rt/lib/interception/interception_linux.cpp:42 ROCm#25 __interception::InterceptFunction (name=0x7ffff6af868b "__isoc23_scanf", ptr_to_real=0x7ffff74850e8 <__interception::real___isoc23_scanf>, func=11, trampoline=140737311157448) at /path/to/llvm/compiler-rt/lib/interception/interception_linux.cpp:61 ROCm#26 0x00007ffff6a9f2d9 in InitializeCommonInterceptors () at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_common_interceptors.inc:10315 ``` Reviewed By: vitalybuka, MaskRay Pull Request: llvm#83890
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May 26, 2024
…ined member functions & member function templates (llvm#88963) Consider the following snippet from the discussion of CWG2847 on the core reflector: ``` template<typename T> concept C = sizeof(T) <= sizeof(long); template<typename T> struct A { template<typename U> void f(U) requires C<U>; // #1, declares a function template void g() requires C<T>; // #2, declares a function template<> void f(char); // #3, an explicit specialization of a function template that declares a function }; template<> template<typename U> void A<short>::f(U) requires C<U>; // #4, an explicit specialization of a function template that declares a function template template<> template<> void A<int>::f(int); // #5, an explicit specialization of a function template that declares a function template<> void A<long>::g(); // #6, an explicit specialization of a function that declares a function ``` A number of problems exist: - Clang rejects `#4` because the trailing _requires-clause_ has `U` substituted with the wrong template parameter depth when `Sema::AreConstraintExpressionsEqual` is called to determine whether it matches the trailing _requires-clause_ of the implicitly instantiated function template. - Clang rejects `#5` because the function template specialization instantiated from `A<int>::f` has a trailing _requires-clause_, but `#5` does not (nor can it have one as it isn't a templated function). - Clang rejects `#6` for the same reasons it rejects `#5`. This patch resolves these issues by making the following changes: - To fix `#4`, `Sema::AreConstraintExpressionsEqual` is passed `FunctionTemplateDecl`s when comparing the trailing _requires-clauses_ of `#4` and the function template instantiated from `#1`. - To fix `#5` and `#6`, the trailing _requires-clauses_ are not compared for explicit specializations that declare functions. In addition to these changes, `CheckMemberSpecialization` now considers constraint satisfaction/constraint partial ordering when determining which member function is specialized by an explicit specialization of a member function for an implicit instantiation of a class template (we previously would select the first function that has the same type as the explicit specialization). With constraints taken under consideration, we match EDG's behavior for these declarations.
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May 26, 2024
...which caused issues like > ==42==ERROR: AddressSanitizer failed to deallocate 0x32 (50) bytes at address 0x117e0000 (error code: 28) > ==42==Cannot dump memory map on emscriptenAddressSanitizer: CHECK failed: sanitizer_common.cpp:81 "((0 && "unable to unmmap")) != (0)" (0x0, 0x0) (tid=288045824) > #0 0x14f73b0c in __asan::CheckUnwind()+0x14f73b0c (this.program+0x14f73b0c) > #1 0x14f8a3c2 in __sanitizer::CheckFailed(char const*, int, char const*, unsigned long long, unsigned long long)+0x14f8a3c2 (this.program+0x14f8a3c2) > #2 0x14f7d6e1 in __sanitizer::ReportMunmapFailureAndDie(void*, unsigned long, int, bool)+0x14f7d6e1 (this.program+0x14f7d6e1) > #3 0x14f81fbd in __sanitizer::UnmapOrDie(void*, unsigned long)+0x14f81fbd (this.program+0x14f81fbd) > #4 0x14f875df in __sanitizer::SuppressionContext::ParseFromFile(char const*)+0x14f875df (this.program+0x14f875df) > #5 0x14f74eab in __asan::InitializeSuppressions()+0x14f74eab (this.program+0x14f74eab) > #6 0x14f73a1a in __asan::AsanInitInternal()+0x14f73a1a (this.program+0x14f73a1a) when trying to use an ASan suppressions file under Emscripten: Even though it would be considered OK by SUSv4, the Emscripten runtime states "We don't support partial munmapping" (see <emscripten-core/emscripten@f4115eb> "Implement MAP_ANONYMOUS on top of malloc in STANDALONE_WASM mode (llvm#16289)"). Co-authored-by: Stephan Bergmann <stephan.bergmann@allotropia.de>
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May 26, 2024
…erSize (llvm#67657)" This reverts commit f0b3654. This commit triggers UB by reading an uninitialized variable. `UP.PartialThreshold` is used uninitialized in `getUnrollingPreferences()` when it is called from `LoopVectorizationPlanner::executePlan()`. In this case the `UP` variable is created on the stack and its fields are not initialized. ``` ==8802==WARNING: MemorySanitizer: use-of-uninitialized-value #0 0x557c0b081b99 in llvm::BasicTTIImplBase<llvm::X86TTIImpl>::getUnrollingPreferences(llvm::Loop*, llvm::ScalarEvolution&, llvm::TargetTransformInfo::UnrollingPreferences&, llvm::OptimizationRemarkEmitter*) llvm-project/llvm/include/llvm/CodeGen/BasicTTIImpl.h #1 0x557c0b07a40c in llvm::TargetTransformInfo::Model<llvm::X86TTIImpl>::getUnrollingPreferences(llvm::Loop*, llvm::ScalarEvolution&, llvm::TargetTransformInfo::UnrollingPreferences&, llvm::OptimizationRemarkEmitter*) llvm-project/llvm/include/llvm/Analysis/TargetTransformInfo.h:2277:17 #2 0x557c0f5d69ee in llvm::TargetTransformInfo::getUnrollingPreferences(llvm::Loop*, llvm::ScalarEvolution&, llvm::TargetTransformInfo::UnrollingPreferences&, llvm::OptimizationRemarkEmitter*) const llvm-project/llvm/lib/Analysis/TargetTransformInfo.cpp:387:19 #3 0x557c0e6b96a0 in llvm::LoopVectorizationPlanner::executePlan(llvm::ElementCount, unsigned int, llvm::VPlan&, llvm::InnerLoopVectorizer&, llvm::DominatorTree*, bool, llvm::DenseMap<llvm::SCEV const*, llvm::Value*, llvm::DenseMapInfo<llvm::SCEV const*, void>, llvm::detail::DenseMapPair<llvm::SCEV const*, llvm::Value*>> const*) llvm-project/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:7624:7 #4 0x557c0e6e4b63 in llvm::LoopVectorizePass::processLoop(llvm::Loop*) llvm-project/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:10253:13 #5 0x557c0e6f2429 in llvm::LoopVectorizePass::runImpl(llvm::Function&, llvm::ScalarEvolution&, llvm::LoopInfo&, llvm::TargetTransformInfo&, llvm::DominatorTree&, llvm::BlockFrequencyInfo*, llvm::TargetLibraryInfo*, llvm::DemandedBits&, llvm::AssumptionCache&, llvm::LoopAccessInfoManager&, llvm::OptimizationRemarkEmitter&, llvm::ProfileSummaryInfo*) llvm-project/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:10344:30 #6 0x557c0e6f2f97 in llvm::LoopVectorizePass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) llvm-project/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:10383:9 [...] Uninitialized value was created by an allocation of 'UP' in the stack frame #0 0x557c0e6b961e in llvm::LoopVectorizationPlanner::executePlan(llvm::ElementCount, unsigned int, llvm::VPlan&, llvm::InnerLoopVectorizer&, llvm::DominatorTree*, bool, llvm::DenseMap<llvm::SCEV const*, llvm::Value*, llvm::DenseMapInfo<llvm::SCEV const*, void>, llvm::detail::DenseMapPair<llvm::SCEV const*, llvm::Value*>> const*) llvm-project/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:7623:3 ```
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Jul 8, 2024
…arallel fusion llvm#94391 (llvm#97607)" This reverts commit edbc0e3. Reason for rollback. ASAN complains about this PR: ==4320==ERROR: AddressSanitizer: heap-use-after-free on address 0x502000006cd8 at pc 0x55e2978d63cf bp 0x7ffe6431c2b0 sp 0x7ffe6431c2a8 READ of size 8 at 0x502000006cd8 thread T0 #0 0x55e2978d63ce in map<llvm::MutableArrayRef<mlir::BlockArgument> &, llvm::MutableArrayRef<mlir::BlockArgument>, nullptr> mlir/include/mlir/IR/IRMapping.h:40:11 #1 0x55e2978d63ce in mlir::createFused(mlir::LoopLikeOpInterface, mlir::LoopLikeOpInterface, mlir::RewriterBase&, std::__u::function<llvm::SmallVector<mlir::Value, 6u> (mlir::OpBuilder&, mlir::Location, llvm::ArrayRef<mlir::BlockArgument>)>, llvm::function_ref<void (mlir::RewriterBase&, mlir::LoopLikeOpInterface, mlir::LoopLikeOpInterface&, mlir::IRMapping)>) mlir/lib/Interfaces/LoopLikeInterface.cpp:156:11 #2 0x55e2952a614b in mlir::fuseIndependentSiblingForLoops(mlir::scf::ForOp, mlir::scf::ForOp, mlir::RewriterBase&) mlir/lib/Dialect/SCF/Utils/Utils.cpp:1398:43 #3 0x55e291480c6f in mlir::transform::LoopFuseSiblingOp::apply(mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) mlir/lib/Dialect/SCF/TransformOps/SCFTransformOps.cpp:482:17 #4 0x55e29149ed5e in mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Model<mlir::transform::LoopFuseSiblingOp>::apply(mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Concept const*, mlir::Operation*, mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.h.inc:477:56 #5 0x55e297494a60 in apply blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.cpp.inc:61:14 #6 0x55e297494a60 in mlir::transform::TransformState::applyTransform(mlir::transform::TransformOpInterface) mlir/lib/Dialect/Transform/Interfaces/TransformInterfaces.cpp:953:48 ROCm#7 0x55e294646a8d in applySequenceBlock(mlir::Block&, mlir::transform::FailurePropagationMode, mlir::transform::TransformState&, mlir::transform::TransformResults&) mlir/lib/Dialect/Transform/IR/TransformOps.cpp:1788:15 ROCm#8 0x55e29464f927 in mlir::transform::NamedSequenceOp::apply(mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) mlir/lib/Dialect/Transform/IR/TransformOps.cpp:2155:10 ROCm#9 0x55e2945d28ee in mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Model<mlir::transform::NamedSequenceOp>::apply(mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Concept const*, mlir::Operation*, mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.h.inc:477:56 ROCm#10 0x55e297494a60 in apply blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.cpp.inc:61:14 ROCm#11 0x55e297494a60 in mlir::transform::TransformState::applyTransform(mlir::transform::TransformOpInterface) mlir/lib/Dialect/Transform/Interfaces/TransformInterfaces.cpp:953:48 ROCm#12 0x55e2974a5fe2 in mlir::transform::applyTransforms(mlir::Operation*, mlir::transform::TransformOpInterface, mlir::RaggedArray<llvm::PointerUnion<mlir::Operation*, mlir::Attribute, mlir::Value>> const&, mlir::transform::TransformOptions const&, bool) mlir/lib/Dialect/Transform/Interfaces/TransformInterfaces.cpp:2016:16 ROCm#13 0x55e2945888d7 in mlir::transform::applyTransformNamedSequence(mlir::RaggedArray<llvm::PointerUnion<mlir::Operation*, mlir::Attribute, mlir::Value>>, mlir::transform::TransformOpInterface, mlir::ModuleOp, mlir::transform::TransformOptions const&) mlir/lib/Dialect/Transform/Transforms/TransformInterpreterUtils.cpp:234:10 ROCm#14 0x55e294582446 in (anonymous namespace)::InterpreterPass::runOnOperation() mlir/lib/Dialect/Transform/Transforms/InterpreterPass.cpp:147:16 ROCm#15 0x55e2978e93c6 in operator() mlir/lib/Pass/Pass.cpp:527:17 ROCm#16 0x55e2978e93c6 in void llvm::function_ref<void ()>::callback_fn<mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int)::$_1>(long) llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 ROCm#17 0x55e2978e207a in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 ROCm#18 0x55e2978e207a in executeAction<mlir::PassExecutionAction, mlir::Pass &> mlir/include/mlir/IR/MLIRContext.h:275:7 ROCm#19 0x55e2978e207a in mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) mlir/lib/Pass/Pass.cpp:521:21 ROCm#20 0x55e2978e5fbf in runPipeline mlir/lib/Pass/Pass.cpp:593:16 ROCm#21 0x55e2978e5fbf in mlir::PassManager::runPasses(mlir::Operation*, mlir::AnalysisManager) mlir/lib/Pass/Pass.cpp:904:10 ROCm#22 0x55e2978e5b65 in mlir::PassManager::run(mlir::Operation*) mlir/lib/Pass/Pass.cpp:884:60 ROCm#23 0x55e291ebb460 in performActions(llvm::raw_ostream&, std::__u::shared_ptr<llvm::SourceMgr> const&, mlir::MLIRContext*, mlir::MlirOptMainConfig const&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:408:17 ROCm#24 0x55e291ebabd9 in processBuffer mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:481:9 ROCm#25 0x55e291ebabd9 in operator() mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:548:12 ROCm#26 0x55e291ebabd9 in llvm::LogicalResult llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>::callback_fn<mlir::MlirOptMain(llvm::raw_ostream&, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&)::$_0>(long, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&) llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 ROCm#27 0x55e297b1cffe in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 ROCm#28 0x55e297b1cffe in mlir::splitAndProcessBuffer(std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef)::$_0::operator()(llvm::StringRef) const mlir/lib/Support/ToolUtilities.cpp:86:16 ROCm#29 0x55e297b1c9c5 in interleave<const llvm::StringRef *, (lambda at mlir/lib/Support/ToolUtilities.cpp:79:23), (lambda at llvm/include/llvm/ADT/STLExtras.h:2147:49), void> llvm/include/llvm/ADT/STLExtras.h:2125:3 ROCm#30 0x55e297b1c9c5 in interleave<llvm::SmallVector<llvm::StringRef, 8U>, (lambda at mlir/lib/Support/ToolUtilities.cpp:79:23), llvm::raw_ostream, llvm::StringRef> llvm/include/llvm/ADT/STLExtras.h:2147:3 ROCm#31 0x55e297b1c9c5 in mlir::splitAndProcessBuffer(std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef) mlir/lib/Support/ToolUtilities.cpp:89:3 ROCm#32 0x55e291eb0cf0 in mlir::MlirOptMain(llvm::raw_ostream&, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:551:10 ROCm#33 0x55e291eb115c in mlir::MlirOptMain(int, char**, llvm::StringRef, llvm::StringRef, mlir::DialectRegistry&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:589:14 ROCm#34 0x55e291eb15f8 in mlir::MlirOptMain(int, char**, llvm::StringRef, mlir::DialectRegistry&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:605:10 ROCm#35 0x55e29130d1be in main mlir/tools/mlir-opt/mlir-opt.cpp:311:33 ROCm#36 0x7fbcf3fff3d3 in __libc_start_main (/usr/grte/v5/lib64/libc.so.6+0x613d3) (BuildId: 9a996398ce14a94560b0c642eb4f6e94) ROCm#37 0x55e2912365a9 in _start /usr/grte/v5/debug-src/src/csu/../sysdeps/x86_64/start.S:120 0x502000006cd8 is located 8 bytes inside of 16-byte region [0x502000006cd0,0x502000006ce0) freed by thread T0 here: #0 0x55e29130b7e2 in operator delete(void*, unsigned long) compiler-rt/lib/asan/asan_new_delete.cpp:155:3 #1 0x55e2979eb657 in __libcpp_operator_delete<void *, unsigned long> #2 0x55e2979eb657 in __do_deallocate_handle_size<> #3 0x55e2979eb657 in __libcpp_deallocate #4 0x55e2979eb657 in deallocate #5 0x55e2979eb657 in deallocate #6 0x55e2979eb657 in operator() ROCm#7 0x55e2979eb657 in ~vector ROCm#8 0x55e2979eb657 in mlir::Block::~Block() mlir/lib/IR/Block.cpp:24:1 ROCm#9 0x55e2979ebc17 in deleteNode llvm/include/llvm/ADT/ilist.h:42:39 ROCm#10 0x55e2979ebc17 in erase llvm/include/llvm/ADT/ilist.h:205:5 ROCm#11 0x55e2979ebc17 in erase llvm/include/llvm/ADT/ilist.h:209:39 ROCm#12 0x55e2979ebc17 in mlir::Block::erase() mlir/lib/IR/Block.cpp:67:28 ROCm#13 0x55e297aef978 in mlir::RewriterBase::eraseBlock(mlir::Block*) mlir/lib/IR/PatternMatch.cpp:245:10 ROCm#14 0x55e297af0563 in mlir::RewriterBase::inlineBlockBefore(mlir::Block*, mlir::Block*, llvm::ilist_iterator<llvm::ilist_detail::node_options<mlir::Operation, false, false, void, false, void>, false, false>, mlir::ValueRange) mlir/lib/IR/PatternMatch.cpp:331:3 ROCm#15 0x55e297af06d8 in mlir::RewriterBase::mergeBlocks(mlir::Block*, mlir::Block*, mlir::ValueRange) mlir/lib/IR/PatternMatch.cpp:341:3 ROCm#16 0x55e297036608 in mlir::scf::ForOp::replaceWithAdditionalYields(mlir::RewriterBase&, mlir::ValueRange, bool, std::__u::function<llvm::SmallVector<mlir::Value, 6u> (mlir::OpBuilder&, mlir::Location, llvm::ArrayRef<mlir::BlockArgument>)> const&) mlir/lib/Dialect/SCF/IR/SCF.cpp:575:12 ROCm#17 0x55e2970673ca in mlir::detail::LoopLikeOpInterfaceInterfaceTraits::Model<mlir::scf::ForOp>::replaceWithAdditionalYields(mlir::detail::LoopLikeOpInterfaceInterfaceTraits::Concept const*, mlir::Operation*, mlir::RewriterBase&, mlir::ValueRange, bool, std::__u::function<llvm::SmallVector<mlir::Value, 6u> (mlir::OpBuilder&, mlir::Location, llvm::ArrayRef<mlir::BlockArgument>)> const&) blaze-out/k8-opt-asan/bin/mlir/include/mlir/Interfaces/LoopLikeInterface.h.inc:658:56 ROCm#18 0x55e2978d5feb in replaceWithAdditionalYields blaze-out/k8-opt-asan/bin/mlir/include/mlir/Interfaces/LoopLikeInterface.cpp.inc:105:14 ROCm#19 0x55e2978d5feb in mlir::createFused(mlir::LoopLikeOpInterface, mlir::LoopLikeOpInterface, mlir::RewriterBase&, std::__u::function<llvm::SmallVector<mlir::Value, 6u> (mlir::OpBuilder&, mlir::Location, llvm::ArrayRef<mlir::BlockArgument>)>, llvm::function_ref<void (mlir::RewriterBase&, mlir::LoopLikeOpInterface, mlir::LoopLikeOpInterface&, mlir::IRMapping)>) mlir/lib/Interfaces/LoopLikeInterface.cpp:135:14 ROCm#20 0x55e2952a614b in mlir::fuseIndependentSiblingForLoops(mlir::scf::ForOp, mlir::scf::ForOp, mlir::RewriterBase&) mlir/lib/Dialect/SCF/Utils/Utils.cpp:1398:43 ROCm#21 0x55e291480c6f in mlir::transform::LoopFuseSiblingOp::apply(mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) mlir/lib/Dialect/SCF/TransformOps/SCFTransformOps.cpp:482:17 ROCm#22 0x55e29149ed5e in mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Model<mlir::transform::LoopFuseSiblingOp>::apply(mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Concept const*, mlir::Operation*, mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.h.inc:477:56 ROCm#23 0x55e297494a60 in apply blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.cpp.inc:61:14 ROCm#24 0x55e297494a60 in mlir::transform::TransformState::applyTransform(mlir::transform::TransformOpInterface) mlir/lib/Dialect/Transform/Interfaces/TransformInterfaces.cpp:953:48 ROCm#25 0x55e294646a8d in applySequenceBlock(mlir::Block&, mlir::transform::FailurePropagationMode, mlir::transform::TransformState&, mlir::transform::TransformResults&) mlir/lib/Dialect/Transform/IR/TransformOps.cpp:1788:15 ROCm#26 0x55e29464f927 in mlir::transform::NamedSequenceOp::apply(mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) mlir/lib/Dialect/Transform/IR/TransformOps.cpp:2155:10 ROCm#27 0x55e2945d28ee in mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Model<mlir::transform::NamedSequenceOp>::apply(mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Concept const*, mlir::Operation*, mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.h.inc:477:56 ROCm#28 0x55e297494a60 in apply blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.cpp.inc:61:14 ROCm#29 0x55e297494a60 in mlir::transform::TransformState::applyTransform(mlir::transform::TransformOpInterface) mlir/lib/Dialect/Transform/Interfaces/TransformInterfaces.cpp:953:48 ROCm#30 0x55e2974a5fe2 in mlir::transform::applyTransforms(mlir::Operation*, mlir::transform::TransformOpInterface, mlir::RaggedArray<llvm::PointerUnion<mlir::Operation*, mlir::Attribute, mlir::Value>> const&, mlir::transform::TransformOptions const&, bool) mlir/lib/Dialect/Transform/Interfaces/TransformInterfaces.cpp:2016:16 ROCm#31 0x55e2945888d7 in mlir::transform::applyTransformNamedSequence(mlir::RaggedArray<llvm::PointerUnion<mlir::Operation*, mlir::Attribute, mlir::Value>>, mlir::transform::TransformOpInterface, mlir::ModuleOp, mlir::transform::TransformOptions const&) mlir/lib/Dialect/Transform/Transforms/TransformInterpreterUtils.cpp:234:10 ROCm#32 0x55e294582446 in (anonymous namespace)::InterpreterPass::runOnOperation() mlir/lib/Dialect/Transform/Transforms/InterpreterPass.cpp:147:16 ROCm#33 0x55e2978e93c6 in operator() mlir/lib/Pass/Pass.cpp:527:17 ROCm#34 0x55e2978e93c6 in void llvm::function_ref<void ()>::callback_fn<mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int)::$_1>(long) llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 ROCm#35 0x55e2978e207a in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 ROCm#36 0x55e2978e207a in executeAction<mlir::PassExecutionAction, mlir::Pass &> mlir/include/mlir/IR/MLIRContext.h:275:7 ROCm#37 0x55e2978e207a in mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) mlir/lib/Pass/Pass.cpp:521:21 ROCm#38 0x55e2978e5fbf in runPipeline mlir/lib/Pass/Pass.cpp:593:16 ROCm#39 0x55e2978e5fbf in mlir::PassManager::runPasses(mlir::Operation*, mlir::AnalysisManager) mlir/lib/Pass/Pass.cpp:904:10 ROCm#40 0x55e2978e5b65 in mlir::PassManager::run(mlir::Operation*) mlir/lib/Pass/Pass.cpp:884:60 ROCm#41 0x55e291ebb460 in performActions(llvm::raw_ostream&, std::__u::shared_ptr<llvm::SourceMgr> const&, mlir::MLIRContext*, mlir::MlirOptMainConfig const&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:408:17 ROCm#42 0x55e291ebabd9 in processBuffer mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:481:9 ROCm#43 0x55e291ebabd9 in operator() mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:548:12 ROCm#44 0x55e291ebabd9 in llvm::LogicalResult llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>::callback_fn<mlir::MlirOptMain(llvm::raw_ostream&, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&)::$_0>(long, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&) llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 ROCm#45 0x55e297b1cffe in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 ROCm#46 0x55e297b1cffe in mlir::splitAndProcessBuffer(std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef)::$_0::operator()(llvm::StringRef) const mlir/lib/Support/ToolUtilities.cpp:86:16 ROCm#47 0x55e297b1c9c5 in interleave<const llvm::StringRef *, (lambda at mlir/lib/Support/ToolUtilities.cpp:79:23), (lambda at llvm/include/llvm/ADT/STLExtras.h:2147:49), void> llvm/include/llvm/ADT/STLExtras.h:2125:3 ROCm#48 0x55e297b1c9c5 in interleave<llvm::SmallVector<llvm::StringRef, 8U>, (lambda at mlir/lib/Support/ToolUtilities.cpp:79:23), llvm::raw_ostream, llvm::StringRef> llvm/include/llvm/ADT/STLExtras.h:2147:3 ROCm#49 0x55e297b1c9c5 in mlir::splitAndProcessBuffer(std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef) mlir/lib/Support/ToolUtilities.cpp:89:3 ROCm#50 0x55e291eb0cf0 in mlir::MlirOptMain(llvm::raw_ostream&, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:551:10 ROCm#51 0x55e291eb115c in mlir::MlirOptMain(int, char**, llvm::StringRef, llvm::StringRef, mlir::DialectRegistry&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:589:14 previously allocated by thread T0 here: #0 0x55e29130ab5d in operator new(unsigned long) compiler-rt/lib/asan/asan_new_delete.cpp:86:3 #1 0x55e2979ed5d4 in __libcpp_operator_new<unsigned long> #2 0x55e2979ed5d4 in __libcpp_allocate #3 0x55e2979ed5d4 in allocate #4 0x55e2979ed5d4 in __allocate_at_least<std::__u::allocator<mlir::BlockArgument> > #5 0x55e2979ed5d4 in __split_buffer #6 0x55e2979ed5d4 in mlir::BlockArgument* std::__u::vector<mlir::BlockArgument, std::__u::allocator<mlir::BlockArgument>>::__push_back_slow_path<mlir::BlockArgument const&>(mlir::BlockArgument const&) ROCm#7 0x55e2979ec0f2 in push_back ROCm#8 0x55e2979ec0f2 in mlir::Block::addArgument(mlir::Type, mlir::Location) mlir/lib/IR/Block.cpp:154:13 ROCm#9 0x55e29796e457 in parseRegionBody mlir/lib/AsmParser/Parser.cpp:2172:34 ROCm#10 0x55e29796e457 in (anonymous namespace)::OperationParser::parseRegion(mlir::Region&, llvm::ArrayRef<mlir::OpAsmParser::Argument>, bool) mlir/lib/AsmParser/Parser.cpp:2121:7 ROCm#11 0x55e29796b25e in (anonymous namespace)::CustomOpAsmParser::parseRegion(mlir::Region&, llvm::ArrayRef<mlir::OpAsmParser::Argument>, bool) mlir/lib/AsmParser/Parser.cpp:1785:16 ROCm#12 0x55e297035742 in mlir::scf::ForOp::parse(mlir::OpAsmParser&, mlir::OperationState&) mlir/lib/Dialect/SCF/IR/SCF.cpp:521:14 ROCm#13 0x55e291322c18 in llvm::ParseResult llvm::detail::UniqueFunctionBase<llvm::ParseResult, mlir::OpAsmParser&, mlir::OperationState&>::CallImpl<llvm::ParseResult (*)(mlir::OpAsmParser&, mlir::OperationState&)>(void*, mlir::OpAsmParser&, mlir::OperationState&) llvm/include/llvm/ADT/FunctionExtras.h:220:12 ROCm#14 0x55e29795bea3 in operator() llvm/include/llvm/ADT/FunctionExtras.h:384:12 ROCm#15 0x55e29795bea3 in callback_fn<llvm::unique_function<llvm::ParseResult (mlir::OpAsmParser &, mlir::OperationState &)> > llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 ROCm#16 0x55e29795bea3 in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 ROCm#17 0x55e29795bea3 in parseOperation mlir/lib/AsmParser/Parser.cpp:1521:9 ROCm#18 0x55e29795bea3 in parseCustomOperation mlir/lib/AsmParser/Parser.cpp:2017:19 ROCm#19 0x55e29795bea3 in (anonymous namespace)::OperationParser::parseOperation() mlir/lib/AsmParser/Parser.cpp:1174:10 ROCm#20 0x55e297971d20 in parseBlockBody mlir/lib/AsmParser/Parser.cpp:2296:9 ROCm#21 0x55e297971d20 in (anonymous namespace)::OperationParser::parseBlock(mlir::Block*&) mlir/lib/AsmParser/Parser.cpp:2226:12 ROCm#22 0x55e29796e4f5 in parseRegionBody mlir/lib/AsmParser/Parser.cpp:2184:7 ROCm#23 0x55e29796e4f5 in (anonymous namespace)::OperationParser::parseRegion(mlir::Region&, llvm::ArrayRef<mlir::OpAsmParser::Argument>, bool) mlir/lib/AsmParser/Parser.cpp:2121:7 ROCm#24 0x55e29796b25e in (anonymous namespace)::CustomOpAsmParser::parseRegion(mlir::Region&, llvm::ArrayRef<mlir::OpAsmParser::Argument>, bool) mlir/lib/AsmParser/Parser.cpp:1785:16 ROCm#25 0x55e29796b2cf in (anonymous namespace)::CustomOpAsmParser::parseOptionalRegion(mlir::Region&, llvm::ArrayRef<mlir::OpAsmParser::Argument>, bool) mlir/lib/AsmParser/Parser.cpp:1796:12 ROCm#26 0x55e2978d89ff in mlir::function_interface_impl::parseFunctionOp(mlir::OpAsmParser&, mlir::OperationState&, bool, mlir::StringAttr, llvm::function_ref<mlir::Type (mlir::Builder&, llvm::ArrayRef<mlir::Type>, llvm::ArrayRef<mlir::Type>, mlir::function_interface_impl::VariadicFlag, std::__u::basic_string<char, std::__u::char_traits<char>, std::__u::allocator<char>>&)>, mlir::StringAttr, mlir::StringAttr) mlir/lib/Interfaces/FunctionImplementation.cpp:232:14 ROCm#27 0x55e2969ba41d in mlir::func::FuncOp::parse(mlir::OpAsmParser&, mlir::OperationState&) mlir/lib/Dialect/Func/IR/FuncOps.cpp:203:10 ROCm#28 0x55e291322c18 in llvm::ParseResult llvm::detail::UniqueFunctionBase<llvm::ParseResult, mlir::OpAsmParser&, mlir::OperationState&>::CallImpl<llvm::ParseResult (*)(mlir::OpAsmParser&, mlir::OperationState&)>(void*, mlir::OpAsmParser&, mlir::OperationState&) llvm/include/llvm/ADT/FunctionExtras.h:220:12 ROCm#29 0x55e29795bea3 in operator() llvm/include/llvm/ADT/FunctionExtras.h:384:12 ROCm#30 0x55e29795bea3 in callback_fn<llvm::unique_function<llvm::ParseResult (mlir::OpAsmParser &, mlir::OperationState &)> > llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 ROCm#31 0x55e29795bea3 in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 ROCm#32 0x55e29795bea3 in parseOperation mlir/lib/AsmParser/Parser.cpp:1521:9 ROCm#33 0x55e29795bea3 in parseCustomOperation mlir/lib/AsmParser/Parser.cpp:2017:19 ROCm#34 0x55e29795bea3 in (anonymous namespace)::OperationParser::parseOperation() mlir/lib/AsmParser/Parser.cpp:1174:10 ROCm#35 0x55e297959b78 in parse mlir/lib/AsmParser/Parser.cpp:2725:20 ROCm#36 0x55e297959b78 in mlir::parseAsmSourceFile(llvm::SourceMgr const&, mlir::Block*, mlir::ParserConfig const&, mlir::AsmParserState*, mlir::AsmParserCodeCompleteContext*) mlir/lib/AsmParser/Parser.cpp:2785:41 ROCm#37 0x55e29790d5c2 in mlir::parseSourceFile(std::__u::shared_ptr<llvm::SourceMgr> const&, mlir::Block*, mlir::ParserConfig const&, mlir::LocationAttr*) mlir/lib/Parser/Parser.cpp:46:10 ROCm#38 0x55e291ebbfe2 in parseSourceFile<mlir::ModuleOp, const std::__u::shared_ptr<llvm::SourceMgr> &> mlir/include/mlir/Parser/Parser.h:159:14 ROCm#39 0x55e291ebbfe2 in parseSourceFile<mlir::ModuleOp> mlir/include/mlir/Parser/Parser.h:189:10 ROCm#40 0x55e291ebbfe2 in mlir::parseSourceFileForTool(std::__u::shared_ptr<llvm::SourceMgr> const&, mlir::ParserConfig const&, bool) mlir/include/mlir/Tools/ParseUtilities.h:31:12 ROCm#41 0x55e291ebb263 in performActions(llvm::raw_ostream&, std::__u::shared_ptr<llvm::SourceMgr> const&, mlir::MLIRContext*, mlir::MlirOptMainConfig const&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:383:33 ROCm#42 0x55e291ebabd9 in processBuffer mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:481:9 ROCm#43 0x55e291ebabd9 in operator() mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:548:12 ROCm#44 0x55e291ebabd9 in llvm::LogicalResult llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>::callback_fn<mlir::MlirOptMain(llvm::raw_ostream&, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&)::$_0>(long, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&) llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 ROCm#45 0x55e297b1cffe in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 ROCm#46 0x55e297b1cffe in mlir::splitAndProcessBuffer(std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef)::$_0::operator()(llvm::StringRef) const mlir/lib/Support/ToolUtilities.cpp:86:16 ROCm#47 0x55e297b1c9c5 in interleave<const llvm::StringRef *, (lambda at mlir/lib/Support/ToolUtilities.cpp:79:23), (lambda at llvm/include/llvm/ADT/STLExtras.h:2147:49), void> llvm/include/llvm/ADT/STLExtras.h:2125:3 ROCm#48 0x55e297b1c9c5 in interleave<llvm::SmallVector<llvm::StringRef, 8U>, (lambda at mlir/lib/Support/ToolUtilities.cpp:79:23), llvm::raw_ostream, llvm::StringRef> llvm/include/llvm/ADT/STLExtras.h:2147:3 ROCm#49 0x55e297b1c9c5 in mlir::splitAndProcessBuffer(std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef) mlir/lib/Support/ToolUtilities.cpp:89:3 ROCm#50 0x55e291eb0cf0 in mlir::MlirOptMain(llvm::raw_ostream&, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:551:10 ROCm#51 0x55e291eb115c in mlir::MlirOptMain(int, char**, llvm::StringRef, llvm::StringRef, mlir::DialectRegistry&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:589:14 ROCm#52 0x55e291eb15f8 in mlir::MlirOptMain(int, char**, llvm::StringRef, mlir::DialectRegistry&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:605:10 ROCm#53 0x55e29130d1be in main mlir/tools/mlir-opt/mlir-opt.cpp:311:33 ROCm#54 0x7fbcf3fff3d3 in __libc_start_main (/usr/grte/v5/lib64/libc.so.6+0x613d3) (BuildId: 9a996398ce14a94560b0c642eb4f6e94) ROCm#55 0x55e2912365a9 in _start /usr/grte/v5/debug-src/src/csu/../sysdeps/x86_64/start.S:120 SUMMARY: AddressSanitizer: heap-use-after-free mlir/include/mlir/IR/IRMapping.h:40:11 in map<llvm::MutableArrayRef<mlir::BlockArgument> &, llvm::MutableArrayRef<mlir::BlockArgument>, nullptr> Shadow bytes around the buggy address: 0x502000006a00: fa fa 00 fa fa fa 00 00 fa fa 00 fa fa fa 00 fa 0x502000006a80: fa fa 00 fa fa fa 00 00 fa fa 00 00 fa fa 00 00 0x502000006b00: fa fa 00 00 fa fa 00 00 fa fa 00 fa fa fa 00 fa 0x502000006b80: fa fa 00 fa fa fa 00 fa fa fa 00 00 fa fa 00 00 0x502000006c00: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa fd fa =>0x502000006c80: fa fa fd fa fa fa fd fd fa fa fd[fd]fa fa fd fd 0x502000006d00: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa 0x502000006d80: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa 0x502000006e00: fa fa 00 fa fa fa 00 fa fa fa 00 00 fa fa 00 fa 0x502000006e80: fa fa 00 fa fa fa 00 00 fa fa 00 fa fa fa 00 fa 0x502000006f00: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb ==4320==ABORTING
jrbyrnes
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Jul 8, 2024
This test is currently flaky on a local Windows amd64 build. The reason is that it relies on the order of `process.threads` but this order is nondeterministic: If we print lldb's inputs and outputs while running, we can see that the breakpoints are always being set correctly, and always being hit: ```sh runCmd: breakpoint set -f "main.c" -l 2 output: Breakpoint 1: where = a.out`func_inner + 1 at main.c:2:9, address = 0x0000000140001001 runCmd: breakpoint set -f "main.c" -l 7 output: Breakpoint 2: where = a.out`main + 17 at main.c:7:5, address = 0x0000000140001021 runCmd: run output: Process 52328 launched: 'C:\workspace\llvm-project\llvm\build\lldb-test-build.noindex\functionalities\unwind\zeroth_frame\TestZerothFrame.test_dwarf\a.out' (x86_64) Process 52328 stopped * thread #1, stop reason = breakpoint 1.1 frame #0: 0x00007ff68f6b1001 a.out`func_inner at main.c:2:9 1 void func_inner() { -> 2 int a = 1; // Set breakpoint 1 here ^ 3 } 4 5 int main() { 6 func_inner(); 7 return 0; // Set breakpoint 2 here ``` However, sometimes the backtrace printed in this test shows that the process is stopped inside NtWaitForWorkViaWorkerFactory from `ntdll.dll`: ```sh Backtrace at the first breakpoint: frame #0: 0x00007ffecc7b3bf4 ntdll.dll`NtWaitForWorkViaWorkerFactory + 20 frame #1: 0x00007ffecc74585e ntdll.dll`RtlClearThreadWorkOnBehalfTicket + 862 frame #2: 0x00007ffecc3e257d kernel32.dll`BaseThreadInitThunk + 29 frame #3: 0x00007ffecc76af28 ntdll.dll`RtlUserThreadStart + 40 ``` When this happens, the test fails with an assertion error that the stopped thread's zeroth frame's current line number does not match the expected line number. This is because the test is looking at the wrong thread: `process.threads[0]`. If we print the list of threads each time the test is run, we notice that threads are sometimes in a different order, within `process.threads`: ```sh Thread 0: thread #4: tid = 0x9c38, 0x00007ffecc7b3bf4 ntdll.dll`NtWaitForWorkViaWorkerFactory + 20 Thread 1: thread #2: tid = 0xa950, 0x00007ffecc7b3bf4 ntdll.dll`NtWaitForWorkViaWorkerFactory + 20 Thread 2: thread #1: tid = 0xab18, 0x00007ff64bc81001 a.out`func_inner at main.c:2:9, stop reason = breakpoint 1.1 Thread 3: thread #3: tid = 0xc514, 0x00007ffecc7b3bf4 ntdll.dll`NtWaitForWorkViaWorkerFactory + 20 Thread 0: thread #3: tid = 0x018c, 0x00007ffecc7b3bf4 ntdll.dll`NtWaitForWorkViaWorkerFactory + 20 Thread 1: thread #1: tid = 0x85c8, 0x00007ff7130c1001 a.out`func_inner at main.c:2:9, stop reason = breakpoint 1.1 Thread 2: thread #2: tid = 0xf344, 0x00007ffecc7b3bf4 ntdll.dll`NtWaitForWorkViaWorkerFactory + 20 Thread 3: thread #4: tid = 0x6a50, 0x00007ffecc7b3bf4 ntdll.dll`NtWaitForWorkViaWorkerFactory + 20 ``` Use `self.thread()` to consistently select the correct thread, instead. Co-authored-by: kendal <kendal@thebrowser.company>
jrbyrnes
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Aug 23, 2024
…104523) Compilers and language runtimes often use helper functions that are fundamentally uninteresting when debugging anything but the compiler/runtime itself. This patch introduces a user-extensible mechanism that allows for these frames to be hidden from backtraces and automatically skipped over when navigating the stack with `up` and `down`. This does not affect the numbering of frames, so `f <N>` will still provide access to the hidden frames. The `bt` output will also print a hint that frames have been hidden. My primary motivation for this feature is to hide thunks in the Swift programming language, but I'm including an example recognizer for `std::function::operator()` that I wished for myself many times while debugging LLDB. rdar://126629381 Example output. (Yes, my proof-of-concept recognizer could hide even more frames if we had a method that returned the function name without the return type or I used something that isn't based off regex, but it's really only meant as an example). before: ``` (lldb) thread backtrace --filtered=false * thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1 * frame #0: 0x0000000100001f04 a.out`foo(x=1, y=1) at main.cpp:4:10 frame #1: 0x0000000100003a00 a.out`decltype(std::declval<int (*&)(int, int)>()(std::declval<int>(), std::declval<int>())) std::__1::__invoke[abi:se200000]<int (*&)(int, int), int, int>(__f=0x000000016fdff280, __args=0x000000016fdff224, __args=0x000000016fdff220) at invoke.h:149:25 frame #2: 0x000000010000399c a.out`int std::__1::__invoke_void_return_wrapper<int, false>::__call[abi:se200000]<int (*&)(int, int), int, int>(__args=0x000000016fdff280, __args=0x000000016fdff224, __args=0x000000016fdff220) at invoke.h:216:12 frame #3: 0x0000000100003968 a.out`std::__1::__function::__alloc_func<int (*)(int, int), std::__1::allocator<int (*)(int, int)>, int (int, int)>::operator()[abi:se200000](this=0x000000016fdff280, __arg=0x000000016fdff224, __arg=0x000000016fdff220) at function.h:171:12 frame #4: 0x00000001000026bc a.out`std::__1::__function::__func<int (*)(int, int), std::__1::allocator<int (*)(int, int)>, int (int, int)>::operator()(this=0x000000016fdff278, __arg=0x000000016fdff224, __arg=0x000000016fdff220) at function.h:313:10 frame #5: 0x0000000100003c38 a.out`std::__1::__function::__value_func<int (int, int)>::operator()[abi:se200000](this=0x000000016fdff278, __args=0x000000016fdff224, __args=0x000000016fdff220) const at function.h:430:12 frame #6: 0x0000000100002038 a.out`std::__1::function<int (int, int)>::operator()(this= Function = foo(int, int) , __arg=1, __arg=1) const at function.h:989:10 frame ROCm#7: 0x0000000100001f64 a.out`main(argc=1, argv=0x000000016fdff4f8) at main.cpp:9:10 frame ROCm#8: 0x0000000183cdf154 dyld`start + 2476 (lldb) ``` after ``` (lldb) bt * thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1 * frame #0: 0x0000000100001f04 a.out`foo(x=1, y=1) at main.cpp:4:10 frame #1: 0x0000000100003a00 a.out`decltype(std::declval<int (*&)(int, int)>()(std::declval<int>(), std::declval<int>())) std::__1::__invoke[abi:se200000]<int (*&)(int, int), int, int>(__f=0x000000016fdff280, __args=0x000000016fdff224, __args=0x000000016fdff220) at invoke.h:149:25 frame #2: 0x000000010000399c a.out`int std::__1::__invoke_void_return_wrapper<int, false>::__call[abi:se200000]<int (*&)(int, int), int, int>(__args=0x000000016fdff280, __args=0x000000016fdff224, __args=0x000000016fdff220) at invoke.h:216:12 frame #6: 0x0000000100002038 a.out`std::__1::function<int (int, int)>::operator()(this= Function = foo(int, int) , __arg=1, __arg=1) const at function.h:989:10 frame ROCm#7: 0x0000000100001f64 a.out`main(argc=1, argv=0x000000016fdff4f8) at main.cpp:9:10 frame ROCm#8: 0x0000000183cdf154 dyld`start + 2476 Note: Some frames were hidden by frame recognizers ```
jrbyrnes
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Oct 3, 2024
…ext is not fully initialized (llvm#110481) As this comment around target initialization implies: ``` // This can be NULL if we don't know anything about the architecture or if // the target for an architecture isn't enabled in the llvm/clang that we // built ``` There are cases where we might fail to call `InitBuiltinTypes` when creating the backing `ASTContext` for a `TypeSystemClang`. If that happens, the builtins `QualType`s, e.g., `VoidPtrTy`/`IntTy`/etc., are not initialized and dereferencing them as we do in `GetBuiltinTypeForEncodingAndBitSize` (and other places) will lead to nullptr-dereferences. Example backtrace: ``` (lldb) run Assertion failed: (!isNull() && "Cannot retrieve a NULL type pointer"), function getCommonPtr, file Type.h, line 958. Process 2680 stopped * thread ROCm#15, name = '<lldb.process.internal-state(pid=2712)>', stop reason = hit program assert frame #4: 0x000000010cdf3cdc liblldb.20.0.0git.dylib`DWARFASTParserClang::ExtractIntFromFormValue(lldb_private::CompilerType const&, lldb_private::plugin::dwarf::DWARFFormValue const&) const (.cold.1) + liblldb.20.0.0git.dylib`DWARFASTParserClang::ParseObjCMethod(lldb_private::ObjCLanguage::MethodName const&, lldb_private::plugin::dwarf::DWARFDIE const&, lldb_private::CompilerType, ParsedDWARFTypeAttributes , bool) (.cold.1): -> 0x10cdf3cdc <+0>: stp x29, x30, [sp, #-0x10]! 0x10cdf3ce0 <+4>: mov x29, sp 0x10cdf3ce4 <+8>: adrp x0, 545 0x10cdf3ce8 <+12>: add x0, x0, #0xa25 ; "ParseObjCMethod" Target 0: (lldb) stopped. (lldb) bt * thread ROCm#15, name = '<lldb.process.internal-state(pid=2712)>', stop reason = hit program assert frame #0: 0x0000000180d08600 libsystem_kernel.dylib`__pthread_kill + 8 frame #1: 0x0000000180d40f50 libsystem_pthread.dylib`pthread_kill + 288 frame #2: 0x0000000180c4d908 libsystem_c.dylib`abort + 128 frame #3: 0x0000000180c4cc1c libsystem_c.dylib`__assert_rtn + 284 * frame #4: 0x000000010cdf3cdc liblldb.20.0.0git.dylib`DWARFASTParserClang::ExtractIntFromFormValue(lldb_private::CompilerType const&, lldb_private::plugin::dwarf::DWARFFormValue const&) const (.cold.1) + frame #5: 0x0000000109d30acc liblldb.20.0.0git.dylib`lldb_private::TypeSystemClang::GetBuiltinTypeForEncodingAndBitSize(lldb::Encoding, unsigned long) + 1188 frame #6: 0x0000000109aaaed4 liblldb.20.0.0git.dylib`DynamicLoaderMacOS::NotifyBreakpointHit(void*, lldb_private::StoppointCallbackContext*, unsigned long long, unsigned long long) + 384 ``` This patch adds a one-time user-visible warning for when we fail to initialize the AST to indicate that initialization went wrong for the given target. Additionally, we add checks for whether one of the `ASTContext` `QualType`s is invalid before dereferencing any builtin types. The warning would look as follows: ``` (lldb) target create "a.out" Current executable set to 'a.out' (arm64). (lldb) b main warning: Failed to initialize builtin ASTContext types for target 'some-unknown-triple'. Printing variables may behave unexpectedly. Breakpoint 1: where = a.out`main + 8 at stepping.cpp:5:14, address = 0x0000000100003f90 ``` rdar://134869779
jrbyrnes
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Nov 19, 2024
… depobj construct (llvm#114221) A codegen crash is occurring when a depend object was initialized with omp_all_memory in the depobj directive. llvm#114214 The root cause of issue looks to be the improper handling of the dependency list when omp_all_memory was specified. The change introduces the use of OMPTaskDataTy to manage dependencies. The buildDependences function is called to construct the dependency list, and the list is iterated over to emit and store the dependencies. Reduced Test Case : ``` #include <omp.h> int main() { omp_depend_t obj; #pragma omp depobj(obj) depend(inout: omp_all_memory) } ``` ``` #1 0x0000000003de6623 SignalHandler(int) Signals.cpp:0:0 #2 0x00007f8e4a6b990f (/lib64/libpthread.so.0+0x1690f) #3 0x00007f8e4a117d2a raise (/lib64/libc.so.6+0x4ad2a) #4 0x00007f8e4a1193e4 abort (/lib64/libc.so.6+0x4c3e4) #5 0x00007f8e4a10fc69 __assert_fail_base (/lib64/libc.so.6+0x42c69) #6 0x00007f8e4a10fcf1 __assert_fail (/lib64/libc.so.6+0x42cf1) ROCm#7 0x0000000004114367 clang::CodeGen::CodeGenFunction::EmitOMPDepobjDirective(clang::OMPDepobjDirective const&) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x4114367) ROCm#8 0x00000000040f8fac clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x40f8fac) ROCm#9 0x00000000040ff4fb clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&, bool, clang::CodeGen::AggValueSlot) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x40ff4fb) ROCm#10 0x00000000041847b2 clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x41847b2) ROCm#11 0x0000000004199e4a clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x4199e4a) ROCm#12 0x00000000041f7b9d clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x41f7b9d) ROCm#13 0x00000000041f16a3 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x41f16a3) ROCm#14 0x00000000041fd954 clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x41fd954) ROCm#15 0x0000000004200277 clang::CodeGen::CodeGenModule::Release() (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x4200277) ROCm#16 0x00000000046b6a49 (anonymous namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&) ModuleBuilder.cpp:0:0 ROCm#17 0x00000000046b4cb6 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x46b4cb6) ROCm#18 0x0000000006204d5c clang::ParseAST(clang::Sema&, bool, bool) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x6204d5c) ROCm#19 0x000000000496b278 clang::FrontendAction::Execute() (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x496b278) ROCm#20 0x00000000048dd074 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x48dd074) ROCm#21 0x0000000004a38092 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x4a38092) ROCm#22 0x0000000000fd4e9c cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0xfd4e9c) ROCm#23 0x0000000000fcca73 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0 ROCm#24 0x0000000000fd140c clang_main(int, char**, llvm::ToolContext const&) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0xfd140c) ROCm#25 0x0000000000ee2ef3 main (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0xee2ef3) ROCm#26 0x00007f8e4a10224c __libc_start_main (/lib64/libc.so.6+0x3524c) ROCm#27 0x0000000000fcaae9 _start /home/abuild/rpmbuild/BUILD/glibc-2.31/csu/../sysdeps/x86_64/start.S:120:0 clang: error: unable to execute command: Aborted ``` --------- Co-authored-by: Chandra Ghale <ghale@pe31.hpc.amslabs.hpecorp.net>
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