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//@ 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)]
// 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()
}
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