rust/tests/codegen/loongarch-abi/call-llvm-intrinsics.rs

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2023-04-14 04:42:08 -05:00
//@ compile-flags: -C no-prepopulate-passes
//@ only-loongarch64
#![feature(link_llvm_intrinsics)]
#![crate_type = "lib"]
struct A;
impl Drop for A {
fn drop(&mut self) {
println!("A");
}
}
extern "C" {
#[link_name = "llvm.sqrt.f32"]
fn sqrt(x: f32) -> f32;
}
pub fn do_call() {
let _a = A;
unsafe {
// Ensure that we `call` LLVM intrinsics instead of trying to `invoke` them
// CHECK: store float 4.000000e+00, ptr %{{.}}, align 4
// CHECK: load float, ptr %{{.}}, align 4
// CHECK: call float @llvm.sqrt.f32(float %{{.}}
sqrt(4.0);
}
}