rust/tests/assembly/x86_64-floating-point-clamp.rs

27 lines
672 B
Rust

// Floating-point clamp is designed to be implementable as max+min,
// so check to make sure that's what it's actually emitting.
// assembly-output: emit-asm
// compile-flags: --crate-type=lib -O -C llvm-args=-x86-asm-syntax=intel
// only-x86_64
// ignore-sgx
// CHECK-LABEL: clamp_demo:
#[no_mangle]
pub fn clamp_demo(a: f32, x: f32, y: f32) -> f32 {
// CHECK: maxss
// CHECK: minss
a.clamp(x, y)
}
// CHECK-LABEL: clamp12_demo:
#[no_mangle]
pub fn clamp12_demo(a: f32) -> f32 {
// CHECK: movss xmm1
// CHECK-NEXT: maxss xmm1, xmm0
// CHECK-NEXT: movss xmm0
// CHECK-NEXT: minss xmm0, xmm1
// CHECK: ret
a.clamp(1.0, 2.0)
}