20432c9eee
Some tests expect to be compiled for a specific CPU or require certain target features to be present (or absent). These tests work fine with default CPUs but fail in downstream builds for RHEL and Fedora, where we use non-default CPUs such as z13 on s390x, pwr9 on ppc64le, or x86-64-v2/x86-64-v3 on x86_64.
112 lines
3.1 KiB
Rust
112 lines
3.1 KiB
Rust
//@ only-x86_64
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//@ build-pass
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//@ ignore-pass (test emits codegen-time warnings)
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//@ compile-flags: -C target-feature=-avx
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#![feature(avx512_target_feature)]
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#![feature(portable_simd)]
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#![feature(simd_ffi)]
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#![allow(improper_ctypes_definitions)]
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use std::arch::x86_64::*;
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#[repr(transparent)]
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struct Wrapper(__m256);
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unsafe extern "C" fn w(_: Wrapper) {
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//~^ requires the `avx` target feature, which is not enabled
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//~| WARNING this was previously accepted by the compiler
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todo!()
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}
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unsafe extern "C" fn f(_: __m256) {
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//~^ requires the `avx` target feature, which is not enabled
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//~| WARNING this was previously accepted by the compiler
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todo!()
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}
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unsafe extern "C" fn g() -> __m256 {
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//~^ requires the `avx` target feature, which is not enabled
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//~| WARNING this was previously accepted by the compiler
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todo!()
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}
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#[target_feature(enable = "avx")]
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unsafe extern "C" fn favx() -> __m256 {
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todo!()
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}
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// avx2 implies avx, so no error here.
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#[target_feature(enable = "avx2")]
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unsafe extern "C" fn gavx(_: __m256) {
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todo!()
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}
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// No error because of "Rust" ABI.
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fn as_f64x8(d: __m512d) -> std::simd::f64x8 {
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unsafe { std::mem::transmute(d) }
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}
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unsafe fn test() {
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let arg = std::mem::transmute([0.0f64; 8]);
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as_f64x8(arg);
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}
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#[target_feature(enable = "avx")]
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unsafe fn in_closure() -> impl FnOnce() -> __m256 {
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#[inline(always)] // this disables target-feature inheritance
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|| g()
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//~^ WARNING requires the `avx` target feature, which is not enabled in the caller
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//~| WARNING this was previously accepted by the compiler
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}
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fn main() {
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unsafe {
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f(g());
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//~^ WARNING requires the `avx` target feature, which is not enabled in the caller
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//~| WARNING requires the `avx` target feature, which is not enabled in the caller
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//~| WARNING this was previously accepted by the compiler
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//~| WARNING this was previously accepted by the compiler
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}
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unsafe {
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gavx(favx());
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//~^ WARNING requires the `avx` target feature, which is not enabled in the caller
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//~| WARNING requires the `avx` target feature, which is not enabled in the caller
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//~| WARNING this was previously accepted by the compiler
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//~| WARNING this was previously accepted by the compiler
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}
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unsafe {
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test();
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}
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unsafe {
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w(Wrapper(g()));
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//~^ WARNING requires the `avx` target feature, which is not enabled in the caller
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//~| WARNING requires the `avx` target feature, which is not enabled in the caller
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//~| WARNING this was previously accepted by the compiler
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//~| WARNING this was previously accepted by the compiler
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}
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unsafe {
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in_closure()();
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}
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unsafe {
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#[expect(improper_ctypes)]
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extern "C" {
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fn some_extern() -> __m256;
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}
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some_extern();
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//~^ WARNING requires the `avx` target feature, which is not enabled in the caller
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//~| WARNING this was previously accepted by the compiler
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}
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}
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#[no_mangle]
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#[target_feature(enable = "avx")]
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fn some_extern() -> __m256 {
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todo!()
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}
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