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Merge commit 'e8dca3e87d' into sync_from_cg_gcc

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Antoni Boucher 2022-06-06 22:04:37 -04:00
commit 3fac982e07
41 changed files with 7933 additions and 592 deletions
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19
compiler/rustc_codegen_gcc/src/lib.rs
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@ -203,7 +203,7 @@ impl WriteBackendMethods for GccCodegenBackend {
fn run_fat_lto(_cgcx: &CodegenContext<Self>, mut modules: Vec<FatLTOInput<Self>>, _cached_modules: Vec<(SerializedModule<Self::ModuleBuffer>, WorkProduct)>) -> Result<LtoModuleCodegen<Self>, FatalError> {
// TODO(antoyo): implement LTO by sending -flto to libgccjit and adding the appropriate gcc linker plugins.
// NOTE: implemented elsewhere.
// TODO: what is implemented elsewhere ^ ?
// TODO(antoyo): what is implemented elsewhere ^ ?
let module =
match modules.remove(0) {
FatLTOInput::InMemory(module) => module,
@ -301,7 +301,22 @@ pub fn target_features(sess: &Session) -> Vec<Symbol> {
)
.filter(|_feature| {
// TODO(antoyo): implement a way to get enabled feature in libgccjit.
false
// Probably using the equivalent of __builtin_cpu_supports.
#[cfg(feature="master")]
{
_feature.contains("sse") || _feature.contains("avx")
}
#[cfg(not(feature="master"))]
{
false
}
/*
adx, aes, avx, avx2, avx512bf16, avx512bitalg, avx512bw, avx512cd, avx512dq, avx512er, avx512f, avx512gfni,
avx512ifma, avx512pf, avx512vaes, avx512vbmi, avx512vbmi2, avx512vl, avx512vnni, avx512vp2intersect, avx512vpclmulqdq,
avx512vpopcntdq, bmi1, bmi2, cmpxchg16b, ermsb, f16c, fma, fxsr, lzcnt, movbe, pclmulqdq, popcnt, rdrand, rdseed, rtm,
sha, sse, sse2, sse3, sse4.1, sse4.2, sse4a, ssse3, tbm, xsave, xsavec, xsaveopt, xsaves
*/
//false
})
.map(|feature| Symbol::intern(feature))
.collect()