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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/codegen/naked-functions.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/codegen/naked-functions.rs')
-rw-r--r-- | src/test/codegen/naked-functions.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/codegen/naked-functions.rs b/src/test/codegen/naked-functions.rs new file mode 100644 index 000000000..51c7a0c61 --- /dev/null +++ b/src/test/codegen/naked-functions.rs @@ -0,0 +1,32 @@ +// compile-flags: -C no-prepopulate-passes +// needs-asm-support +// only-x86_64 + +#![crate_type = "lib"] +#![feature(naked_functions)] +use std::arch::asm; + +// CHECK: Function Attrs: naked +// CHECK-NEXT: define{{.*}}void @naked_empty() +#[no_mangle] +#[naked] +pub unsafe extern "C" fn naked_empty() { + // CHECK-NEXT: {{.+}}: + // CHECK-NEXT: call void asm + // CHECK-NEXT: unreachable + asm!("ret", + options(noreturn)); +} + +// CHECK: Function Attrs: naked +// CHECK-NEXT: define{{.*}}i{{[0-9]+}} @naked_with_args_and_return(i64 %a, i64 %b) +#[no_mangle] +#[naked] +pub unsafe extern "C" fn naked_with_args_and_return(a: isize, b: isize) -> isize { + // CHECK-NEXT: {{.+}}: + // CHECK-NEXT: call void asm + // CHECK-NEXT: unreachable + asm!("lea rax, [rdi + rsi]", + "ret", + options(noreturn)); +} |