From 4547b622d8d29df964fa2914213088b148c498fc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:18:32 +0200 Subject: Merging upstream version 1.67.1+dfsg1. Signed-off-by: Daniel Baumann --- src/test/assembly/is_aligned.rs | 58 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 src/test/assembly/is_aligned.rs (limited to 'src/test/assembly/is_aligned.rs') diff --git a/src/test/assembly/is_aligned.rs b/src/test/assembly/is_aligned.rs new file mode 100644 index 000000000..04b5de834 --- /dev/null +++ b/src/test/assembly/is_aligned.rs @@ -0,0 +1,58 @@ +// assembly-output: emit-asm +// min-llvm-version: 14.0 +// only-x86_64 +// revisions: opt-speed opt-size +// [opt-speed] compile-flags: -Copt-level=1 +// [opt-size] compile-flags: -Copt-level=s +#![crate_type="rlib"] + +#![feature(core_intrinsics)] +#![feature(pointer_is_aligned)] + +// 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() +} -- cgit v1.2.3