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Add lahfsahf and prfchw target feature

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This commit is contained in:
Chris Denton 2024-02-12 09:06:45 -03:00
parent aebf4511e9
commit 83a850f2a1
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GPG key ID: 713472F2F45627DE
8 changed files with 13 additions and 2 deletions
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1
compiler/rustc_codegen_llvm/src/llvm_util.rs
View file

@ -213,6 +213,7 @@ pub fn to_llvm_features<'a>(sess: &Session, s: &'a str) -> LLVMFeature<'a> {
("x86", "rdrand") => LLVMFeature::new("rdrnd"),
("x86", "bmi1") => LLVMFeature::new("bmi"),
("x86", "cmpxchg16b") => LLVMFeature::new("cx16"),
("x86", "lahfsahf") => LLVMFeature::new("sahf"),
("aarch64", "rcpc2") => LLVMFeature::new("rcpc-immo"),
("aarch64", "dpb") => LLVMFeature::new("ccpp"),
("aarch64", "dpb2") => LLVMFeature::new("ccdp"),

2
compiler/rustc_codegen_ssa/src/target_features.rs
View file

@ -77,6 +77,8 @@ pub fn from_target_feature(
Some(sym::aarch64_ver_target_feature) => rust_features.aarch64_ver_target_feature,
Some(sym::csky_target_feature) => rust_features.csky_target_feature,
Some(sym::loongarch_target_feature) => rust_features.loongarch_target_feature,
Some(sym::lahfsahf_target_feature) => rust_features.lahfsahf_target_feature,
Some(sym::prfchw_target_feature) => rust_features.prfchw_target_feature,
Some(name) => bug!("unknown target feature gate {}", name),
None => true,
};

2
compiler/rustc_feature/src/unstable.rs
View file

@ -301,9 +301,11 @@ declare_features! (
(unstable, csky_target_feature, "1.73.0", Some(44839)),
(unstable, ermsb_target_feature, "1.49.0", Some(44839)),
(unstable, hexagon_target_feature, "1.27.0", Some(44839)),
(unstable, lahfsahf_target_feature, "CURRENT_RUSTC_VERSION", Some(44839)),
(unstable, loongarch_target_feature, "1.73.0", Some(44839)),
(unstable, mips_target_feature, "1.27.0", Some(44839)),
(unstable, powerpc_target_feature, "1.27.0", Some(44839)),
(unstable, prfchw_target_feature, "CURRENT_RUSTC_VERSION", Some(44839)),
(unstable, riscv_target_feature, "1.45.0", Some(44839)),
(unstable, rtm_target_feature, "1.35.0", Some(44839)),
(unstable, sse4a_target_feature, "1.27.0", Some(44839)),

2
compiler/rustc_span/src/symbol.rs
View file

@ -932,6 +932,7 @@ symbols! {
kreg0,
label,
label_break_value,
lahfsahf_target_feature,
lang,
lang_items,
large_assignments,
@ -1240,6 +1241,7 @@ symbols! {
prelude,
prelude_import,
preserves_flags,
prfchw_target_feature,
print_macro,
println_macro,
proc_dash_macro: "proc-macro",

2
compiler/rustc_target/src/target_features.rs
View file

@ -218,10 +218,12 @@ const X86_ALLOWED_FEATURES: &[(&str, Stability)] = &[
("fma", Stable),
("fxsr", Stable),
("gfni", Unstable(sym::avx512_target_feature)),
("lahfsahf", Unstable(sym::lahfsahf_target_feature)),
("lzcnt", Stable),
("movbe", Stable),
("pclmulqdq", Stable),
("popcnt", Stable),
("prfchw", Unstable(sym::prfchw_target_feature)),
("rdrand", Stable),
("rdseed", Stable),
("rtm", Unstable(sym::rtm_target_feature)),