mirror of https://github.com/rust-lang/rust
54 lines
1.4 KiB
Rust
54 lines
1.4 KiB
Rust
//@ revisions: WIN LIN
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//@ [WIN] only-windows
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//@ [LIN] only-linux
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//@ only-x86_64
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//@ assembly-output: emit-asm
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//@ compile-flags: --crate-type=lib -O
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use std::arch::x86_64::__m128;
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use std::mem::swap;
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// CHECK-LABEL: swap_i32:
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#[no_mangle]
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pub fn swap_i32(x: &mut i32, y: &mut i32) {
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// CHECK: movl (%[[ARG1:.+]]), %[[T1:.+]]
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// CHECK: movl (%[[ARG2:.+]]), %[[T2:.+]]
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// CHECK: movl %[[T2]], (%[[ARG1]])
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// CHECK: movl %[[T1]], (%[[ARG2]])
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// CHECK: retq
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swap(x, y)
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}
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// CHECK-LABEL: swap_pair:
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#[no_mangle]
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pub fn swap_pair(x: &mut (i32, u32), y: &mut (i32, u32)) {
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// CHECK: movq (%[[ARG1]]), %[[T1:.+]]
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// CHECK: movq (%[[ARG2]]), %[[T2:.+]]
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// CHECK: movq %[[T2]], (%[[ARG1]])
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// CHECK: movq %[[T1]], (%[[ARG2]])
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// CHECK: retq
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swap(x, y)
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}
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// CHECK-LABEL: swap_str:
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#[no_mangle]
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pub fn swap_str<'a>(x: &mut &'a str, y: &mut &'a str) {
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// CHECK: movups (%[[ARG1]]), %[[T1:xmm.]]
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// CHECK: movups (%[[ARG2]]), %[[T2:xmm.]]
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// CHECK: movups %[[T2]], (%[[ARG1]])
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// CHECK: movups %[[T1]], (%[[ARG2]])
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// CHECK: retq
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swap(x, y)
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}
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// CHECK-LABEL: swap_simd:
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#[no_mangle]
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pub fn swap_simd(x: &mut __m128, y: &mut __m128) {
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// CHECK: movaps (%[[ARG1]]), %[[T1:xmm.]]
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// CHECK: movaps (%[[ARG2]]), %[[T2:xmm.]]
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// CHECK: movaps %[[T2]], (%[[ARG1]])
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// CHECK: movaps %[[T1]], (%[[ARG2]])
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// CHECK: retq
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swap(x, y)
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}
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