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authorMatthias Krüger <matthias.krueger@famsik.de>2024-02-12 23:18:54 +0100
committerGitHub <noreply@github.com>2024-02-12 23:18:54 +0100
commit7075502b15404ce57fa281491bc69fbc60f3ade3 (patch)
tree6d27d27794c2117e5f73d9f5f559af5449c8c569 /compiler/rustc_codegen_llvm/src
parentcb0d74be28733e4d9bc8340be17087f5d2037d45 (diff)
parent83a850f2a1259eb05ef444c81bcb5869d6dbf336 (diff)
downloadrust-7075502b15404ce57fa281491bc69fbc60f3ade3.tar.gz
rust-7075502b15404ce57fa281491bc69fbc60f3ade3.zip
Rollup merge of #120965 - ChrisDenton:sahf, r=michaelwoerister
Add lahfsahf and prfchw target feature

This adds target features for LAHF/SAHF and PrefetchW. These came up. along with the existing CMPXCHG16b. as [baseline features](https://download.microsoft.com/download/c/1/5/c150e1ca-4a55-4a7e-94c5-bfc8c2e785c5/Windows%2010%20Minimum%20Hardware%20Requirements.pdf) required for x86_64 Windows 10+.
Diffstat (limited to 'compiler/rustc_codegen_llvm/src')
-rw-r--r--compiler/rustc_codegen_llvm/src/llvm_util.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs
index 4bb400b1879..e48479c8da2 100644
--- a/compiler/rustc_codegen_llvm/src/llvm_util.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs
@@ -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"),