release/19.x: [llvm-exegesis][unittests] Also disable SubprocessMemoryTest on SPARC (#102755) #102771
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@boomanaiden154 What do you think about merging this PR to the release branch? |
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@llvm/pr-subscribers-tools-llvm-exegesis Author: None (llvmbot) ChangesBackport a417083 Requested by: @rorth Full diff: https://github.com/llvm/llvm-project/pull/102771.diff 1 Files Affected:
diff --git a/llvm/unittests/tools/llvm-exegesis/X86/SubprocessMemoryTest.cpp b/llvm/unittests/tools/llvm-exegesis/X86/SubprocessMemoryTest.cpp
index 7c23e7b7e9c5a5..f61254ac74e140 100644
--- a/llvm/unittests/tools/llvm-exegesis/X86/SubprocessMemoryTest.cpp
+++ b/llvm/unittests/tools/llvm-exegesis/X86/SubprocessMemoryTest.cpp
@@ -24,7 +24,8 @@
namespace llvm {
namespace exegesis {
-#if defined(__linux__) && !defined(__ANDROID__)
+#if defined(__linux__) && !defined(__ANDROID__) && \
+ !(defined(__powerpc__) || defined(__s390x__) || defined(__sparc__))
// This needs to be updated anytime a test is added or removed from the test
// suite.
@@ -77,20 +78,12 @@ class SubprocessMemoryTest : public X86TestBase {
// memory calls not working in some cases, so they have been disabled.
// TODO(boomanaiden154): Investigate and fix this issue on PPC.
-#if defined(__powerpc__) || defined(__s390x__)
-TEST_F(SubprocessMemoryTest, DISABLED_OneDefinition) {
-#else
TEST_F(SubprocessMemoryTest, OneDefinition) {
-#endif
testCommon({{"test1", {APInt(8, 0xff), 4096, 0}}}, 0);
checkSharedMemoryDefinition(getSharedMemoryName(0, 0), 4096, {0xff});
}
-#if defined(__powerpc__) || defined(__s390x__)
-TEST_F(SubprocessMemoryTest, DISABLED_MultipleDefinitions) {
-#else
TEST_F(SubprocessMemoryTest, MultipleDefinitions) {
-#endif
testCommon({{"test1", {APInt(8, 0xaa), 4096, 0}},
{"test2", {APInt(8, 0xbb), 4096, 1}},
{"test3", {APInt(8, 0xcc), 4096, 2}}},
@@ -100,11 +93,7 @@ TEST_F(SubprocessMemoryTest, MultipleDefinitions) {
checkSharedMemoryDefinition(getSharedMemoryName(1, 2), 4096, {0xcc});
}
-#if defined(__powerpc__) || defined(__s390x__)
-TEST_F(SubprocessMemoryTest, DISABLED_DefinitionFillsCompletely) {
-#else
TEST_F(SubprocessMemoryTest, DefinitionFillsCompletely) {
-#endif
testCommon({{"test1", {APInt(8, 0xaa), 4096, 0}},
{"test2", {APInt(16, 0xbbbb), 4096, 1}},
{"test3", {APInt(24, 0xcccccc), 4096, 2}}},
@@ -118,7 +107,7 @@ TEST_F(SubprocessMemoryTest, DefinitionFillsCompletely) {
}
// The following test is only supported on little endian systems.
-#if defined(__powerpc__) || defined(__s390x__) || __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
TEST_F(SubprocessMemoryTest, DISABLED_DefinitionEndTruncation) {
#else
TEST_F(SubprocessMemoryTest, DefinitionEndTruncation) {
@@ -150,7 +139,7 @@ TEST_F(SubprocessMemoryTest, DefinitionEndTruncation) {
checkSharedMemoryDefinition(getSharedMemoryName(3, 0), 4096, Test1Expected);
}
-#endif // defined(__linux__) && !defined(__ANDROID__)
+#endif // __linux__ && !__ANDROID__ && !(__powerpc__ || __s390x__ || __sparc__)
} // namespace exegesis
} // namespace llvm
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boomanaiden154
approved these changes
Aug 10, 2024
…llvm#102755) Three `llvm-exegesis` tests ``` LLVM-Unit :: tools/llvm-exegesis/./LLVMExegesisTests/SubprocessMemoryTest/DefinitionFillsCompletely LLVM-Unit :: tools/llvm-exegesis/./LLVMExegesisTests/SubprocessMemoryTest/MultipleDefinitions LLVM-Unit :: tools/llvm-exegesis/./LLVMExegesisTests/SubprocessMemoryTest/OneDefinition ``` `FAIL` on Linux/sparc64 like ``` llvm/unittests/tools/llvm-exegesis/X86/SubprocessMemoryTest.cpp:68: Failure Expected equality of these values: SharedMemoryMapping[I] Which is: '\0' ExpectedValue[I] Which is: '\xAA' (170) ``` It seems like this test only works on little-endian hosts: three sub-tests are already disabled on powerpc and s390x (both big-endian), and the fourth is additionally guarded against big-endian hosts (making the other guards unnecessary). However, since it's not been analyzed if this is really an endianess issue, this patch disables the whole test on powerpc and s390x as before adding sparc to the mix. Tested on `sparc64-unknown-linux-gnu` and `x86_64-pc-linux-gnu`. (cherry picked from commit a417083)
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@rorth (or anyone else). If you would like to add a note about this fix in the release notes (completely optional). Please reply to this comment with a one or two sentence description of the fix. When you are done, please add the release:note label to this PR. |
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Backport a417083
Requested by: @rorth