rust/tests/codegen/target-feature-overrides.rs

48 lines
1.2 KiB
Rust

// revisions: COMPAT INCOMPAT
// needs-llvm-components: x86
// compile-flags: --target=x86_64-unknown-linux-gnu -Copt-level=3
// [COMPAT] compile-flags: -Ctarget-feature=+avx2,+avx
// [INCOMPAT] compile-flags: -Ctarget-feature=-avx2,-avx
// See also tests/assembly/target-feature-multiple.rs
#![feature(no_core, lang_items)]
#![crate_type = "lib"]
#![no_core]
#[lang = "sized"]
trait Sized {}
#[lang = "copy"]
trait Copy {}
extern "C" {
fn peach() -> u32;
}
#[inline]
#[target_feature(enable = "avx")]
#[no_mangle]
pub unsafe fn apple() -> u32 {
// CHECK-LABEL: @apple()
// CHECK-SAME: [[APPLEATTRS:#[0-9]+]] {
// CHECK: {{.*}}call{{.*}}@peach
peach()
}
// target features same as global
#[no_mangle]
pub unsafe fn banana() -> u32 {
// CHECK-LABEL: @banana()
// CHECK-SAME: [[BANANAATTRS:#[0-9]+]] {
// COMPAT: {{.*}}call{{.*}}@peach
// INCOMPAT: {{.*}}call{{.*}}@apple
apple() // Compatible for inline in COMPAT revision and can't be inlined in INCOMPAT
}
// CHECK: attributes [[APPLEATTRS]]
// COMPAT-SAME: "target-features"="+avx2,+avx,+avx"
// INCOMPAT-SAME: "target-features"="-avx2,-avx,+avx"
// CHECK: attributes [[BANANAATTRS]]
// COMPAT-SAME: "target-features"="+avx2,+avx"
// INCOMPAT-SAME: "target-features"="-avx2,-avx"