diff options
| author | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-21 14:34:12 +0200 |
|---|---|---|
| committer | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-22 14:28:48 +0200 |
| commit | a27f3e3fd1e4d16160f8885b6b06665b5319f56c (patch) | |
| tree | b033935392cbadf6f85d2dbddf433a88e323aeeb /tests/codegen-llvm/asm/maybe-uninit.rs | |
| parent | ed93c1783b404d728d4809973a0550eb33cd293f (diff) | |
| download | rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.tar.gz rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.zip | |
Rename `tests/codegen` into `tests/codegen-llvm`
Diffstat (limited to 'tests/codegen-llvm/asm/maybe-uninit.rs')
| -rw-r--r-- | tests/codegen-llvm/asm/maybe-uninit.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/codegen-llvm/asm/maybe-uninit.rs b/tests/codegen-llvm/asm/maybe-uninit.rs new file mode 100644 index 00000000000..d76d5cb1312 --- /dev/null +++ b/tests/codegen-llvm/asm/maybe-uninit.rs @@ -0,0 +1,27 @@ +//@ compile-flags: -Copt-level=3 +//@ only-x86_64 + +#![crate_type = "rlib"] +#![allow(asm_sub_register)] + +use std::arch::asm; +use std::mem::MaybeUninit; + +// CHECK-LABEL: @int +#[no_mangle] +pub unsafe fn int(x: MaybeUninit<i32>) -> MaybeUninit<i32> { + let y: MaybeUninit<i32>; + asm!("/*{}{}*/", in(reg) x, out(reg) y); + y +} + +// CHECK-LABEL: @inout +#[no_mangle] +pub unsafe fn inout(mut x: i32) -> MaybeUninit<u32> { + let mut y: MaybeUninit<u32>; + asm!("/*{}*/", inout(reg) x => y); + asm!("/*{}*/", inout(reg) y => x); + asm!("/*{}*/", inlateout(reg) x => y); + asm!("/*{}*/", inlateout(reg) y => x); + y +} |