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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/codegen/naked-functions.rs | |
parent | Adding upstream version 1.67.1+dfsg1. (diff) | |
download | rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip |
Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/codegen/naked-functions.rs')
-rw-r--r-- | tests/codegen/naked-functions.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tests/codegen/naked-functions.rs b/tests/codegen/naked-functions.rs new file mode 100644 index 000000000..e05bbc26e --- /dev/null +++ b/tests/codegen/naked-functions.rs @@ -0,0 +1,32 @@ +// compile-flags: -C no-prepopulate-passes -Copt-level=0 +// 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)); +} |