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| author | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-21 14:22:51 +0200 |
|---|---|---|
| committer | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-22 14:27:48 +0200 |
| commit | ed93c1783b404d728d4809973a0550eb33cd293f (patch) | |
| tree | 2b62aab8b2482fcde1f9128ff53be8cd66bde847 /tests/assembly-llvm/is_aligned.rs | |
| parent | c0b282f0ccdab7523cdb8dfa41b23bed5573da76 (diff) | |
| download | rust-ed93c1783b404d728d4809973a0550eb33cd293f.tar.gz rust-ed93c1783b404d728d4809973a0550eb33cd293f.zip | |
Rename `tests/assembly` into `tests/assembly-llvm`
Diffstat (limited to 'tests/assembly-llvm/is_aligned.rs')
| -rw-r--r-- | tests/assembly-llvm/is_aligned.rs | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tests/assembly-llvm/is_aligned.rs b/tests/assembly-llvm/is_aligned.rs new file mode 100644 index 00000000000..ab8f7dea808 --- /dev/null +++ b/tests/assembly-llvm/is_aligned.rs @@ -0,0 +1,55 @@ +//@ assembly-output: emit-asm +//@ only-x86_64 +//@ ignore-sgx +//@ revisions: opt-speed opt-size +//@ [opt-speed] compile-flags: -Copt-level=2 -Cdebug-assertions=no +//@ [opt-size] compile-flags: -Copt-level=s -Cdebug-assertions=no +#![crate_type = "rlib"] +#![feature(core_intrinsics)] +#![feature(pointer_is_aligned_to)] + +// CHECK-LABEL: is_aligned_to_unchecked +// CHECK: decq +// CHECK-NEXT: testq +// CHECK-NEXT: sete +// CHECK: retq +#[no_mangle] +pub unsafe fn is_aligned_to_unchecked(ptr: *const u8, align: usize) -> bool { + unsafe { std::intrinsics::assume(align.is_power_of_two()) } + ptr.is_aligned_to(align) +} + +// CHECK-LABEL: is_aligned_1 +// CHECK: movb $1 +// CHECK: retq +#[no_mangle] +pub fn is_aligned_1(ptr: *const u8) -> bool { + ptr.is_aligned() +} + +// CHECK-LABEL: is_aligned_2 +// CHECK: testb $1 +// CHECK-NEXT: sete +// CHECK: retq +#[no_mangle] +pub fn is_aligned_2(ptr: *const u16) -> bool { + ptr.is_aligned() +} + +// CHECK-LABEL: is_aligned_4 +// CHECK: testb $3 +// CHECK-NEXT: sete +// CHECK: retq +#[no_mangle] +pub fn is_aligned_4(ptr: *const u32) -> bool { + ptr.is_aligned() +} + +// CHECK-LABEL: is_aligned_8 +// CHECK: testb $7 +// CHECK-NEXT: sete +// CHECK: retq +#[no_mangle] +pub fn is_aligned_8(ptr: *const u64) -> bool { + ptr.is_aligned() +} |
