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Add global_asm tests
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mrhota committed Mar 30, 2017
1 parent 4d46f54 commit 907ba1b
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2 changes: 1 addition & 1 deletion src/doc/unstable-book/src/global_asm.md
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Expand Up @@ -27,7 +27,7 @@ A simple usage looks like this:
```rust,ignore
# #![feature(global_asm)]
# you also need relevant target_arch cfgs
global_asm!(include_str("something_neato.s"));
global_asm!(include_str!("something_neato.s"));
```

And a more complicated usage looks like this:
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1 change: 1 addition & 0 deletions src/librustc_driver/test.rs
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Expand Up @@ -233,6 +233,7 @@ impl<'a, 'gcx, 'tcx> Env<'a, 'gcx, 'tcx> {
hir::ItemStatic(..) |
hir::ItemFn(..) |
hir::ItemForeignMod(..) |
hir::ItemGlobalAsm(..) |
hir::ItemTy(..) => None,

hir::ItemEnum(..) |
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2 changes: 1 addition & 1 deletion src/libsyntax/feature_gate.rs
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Expand Up @@ -986,7 +986,7 @@ pub const EXPLAIN_ASM: &'static str =
"inline assembly is not stable enough for use and is subject to change";

pub const EXPLAIN_GLOBAL_ASM: &'static str =
"module-level inline assembly is experimental and subject to change";
"`global_asm!` is not stable enough for use and is subject to change";

pub const EXPLAIN_LOG_SYNTAX: &'static str =
"`log_syntax!` is not stable enough for use and is subject to change";
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3 changes: 3 additions & 0 deletions src/test/codegen/foo.s
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@@ -0,0 +1,3 @@
.global foo
foo:
jmp baz
73 changes: 73 additions & 0 deletions src/test/codegen/global_asm.rs
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@@ -0,0 +1,73 @@
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// ignore-aarch64
// ignore-aarch64_be
// ignore-arm
// ignore-armeb
// ignore-avr
// ignore-bpfel
// ignore-bpfeb
// ignore-hexagon
// ignore-mips
// ignore-mipsel
// ignore-mips64
// ignore-mips64el
// ignore-msp430
// ignore-powerpc64
// ignore-powerpc64le
// ignore-powerpc
// ignore-r600
// ignore-amdgcn
// ignore-sparc
// ignore-sparcv9
// ignore-sparcel
// ignore-s390x
// ignore-tce
// ignore-thumb
// ignore-thumbeb
// ignore-xcore
// ignore-nvptx
// ignore-nvptx64
// ignore-le32
// ignore-le64
// ignore-amdil
// ignore-amdil64
// ignore-hsail
// ignore-hsail64
// ignore-spir
// ignore-spir64
// ignore-kalimba
// ignore-shave
// ignore-wasm32
// ignore-wasm64
// ignore-emscripten
// compile-flags: -C no-prepopulate-passes

#![feature(global_asm)]
#![crate_type = "lib"]

// CHECK-LABEL: foo
// CHECK: module asm
// this regex will capture the correct unconditional branch inst.
// CHECK: module asm "{{[[:space:]]+}}jmp baz"
global_asm!(r#"
.global foo
foo:
jmp baz
"#);

extern "C" {
fn foo();
}

// CHECK-LABEL: @baz
#[no_mangle]
pub unsafe extern "C" fn baz() {}
68 changes: 68 additions & 0 deletions src/test/codegen/global_asm_include.rs
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@@ -0,0 +1,68 @@
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// ignore-aarch64
// ignore-aarch64_be
// ignore-arm
// ignore-armeb
// ignore-avr
// ignore-bpfel
// ignore-bpfeb
// ignore-hexagon
// ignore-mips
// ignore-mipsel
// ignore-mips64
// ignore-mips64el
// ignore-msp430
// ignore-powerpc64
// ignore-powerpc64le
// ignore-powerpc
// ignore-r600
// ignore-amdgcn
// ignore-sparc
// ignore-sparcv9
// ignore-sparcel
// ignore-s390x
// ignore-tce
// ignore-thumb
// ignore-thumbeb
// ignore-xcore
// ignore-nvptx
// ignore-nvptx64
// ignore-le32
// ignore-le64
// ignore-amdil
// ignore-amdil64
// ignore-hsail
// ignore-hsail64
// ignore-spir
// ignore-spir64
// ignore-kalimba
// ignore-shave
// ignore-wasm32
// ignore-wasm64
// ignore-emscripten
// compile-flags: -C no-prepopulate-passes

#![feature(global_asm)]
#![crate_type = "lib"]

// CHECK-LABEL: foo
// CHECK: module asm
// CHECK: module asm "{{[[:space:]]+}}jmp baz"
global_asm!(include_str!("foo.s"));

extern "C" {
fn foo();
}

// CHECK-LABEL: @baz
#[no_mangle]
pub unsafe extern "C" fn baz() {}
90 changes: 90 additions & 0 deletions src/test/codegen/global_asm_x2.rs
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@@ -0,0 +1,90 @@
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// ignore-aarch64
// ignore-aarch64_be
// ignore-arm
// ignore-armeb
// ignore-avr
// ignore-bpfel
// ignore-bpfeb
// ignore-hexagon
// ignore-mips
// ignore-mipsel
// ignore-mips64
// ignore-mips64el
// ignore-msp430
// ignore-powerpc64
// ignore-powerpc64le
// ignore-powerpc
// ignore-r600
// ignore-amdgcn
// ignore-sparc
// ignore-sparcv9
// ignore-sparcel
// ignore-s390x
// ignore-tce
// ignore-thumb
// ignore-thumbeb
// ignore-xcore
// ignore-nvptx
// ignore-nvptx64
// ignore-le32
// ignore-le64
// ignore-amdil
// ignore-amdil64
// ignore-hsail
// ignore-hsail64
// ignore-spir
// ignore-spir64
// ignore-kalimba
// ignore-shave
// ignore-wasm32
// ignore-wasm64
// ignore-emscripten
// compile-flags: -C no-prepopulate-passes

#![feature(global_asm)]
#![crate_type = "lib"]
#[no_std]

// CHECK-LABEL: foo
// CHECK: module asm
// CHECK: module asm "{{[[:space:]]+}}jmp baz"
// any other global_asm will be appended to this first block, so:
// CHECK-LABEL: bar
// CHECK: module asm "{{[[:space:]]+}}jmp quux"
global_asm!(r#"
.global foo
foo:
jmp baz
"#);

extern "C" {
fn foo();
}

// CHECK-LABEL: @baz
#[no_mangle]
pub unsafe extern "C" fn baz() {}

// no checks here; this has been appended to the first occurrence
global_asm!(r#"
.global bar
bar:
jmp quux
"#);

extern "C" {
fn bar();
}

#[no_mangle]
pub unsafe extern "C" fn quux() {}
15 changes: 15 additions & 0 deletions src/test/compile-fail/feature-gate-global_asm.rs
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@@ -0,0 +1,15 @@
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// gate-test-global_asm

global_asm!(""); //~ ERROR `global_asm!` is not stable

fn main() {}
28 changes: 28 additions & 0 deletions src/test/run-pass/empty_global_asm.rs
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@@ -0,0 +1,28 @@
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

#![feature(global_asm)]

#[cfg(target_arch = "x86")]
global_asm!("");

#[cfg(target_arch = "x86_64")]
global_asm!("");

#[cfg(target_arch = "arm")]
global_asm!("");

#[cfg(target_arch = "aarch64")]
global_asm!("");

#[cfg(target_arch = "mips")]
global_asm!("");

fn main() {}
27 changes: 27 additions & 0 deletions src/test/run-pass/simple_global_asm.rs
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@@ -0,0 +1,27 @@
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

#![feature(global_asm)]

#[cfg(any(target_arch = "x86_64", target_arch = "x86"))]
global_asm!(r#"
.global foo
foo:
jmp baz
"#);

extern {
fn foo();
}

#[no_mangle]
pub extern fn baz() {}

fn main() {}

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