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Rollup merge of #120965 - ChrisDenton:sahf, r=michaelwoerister

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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](c150e1ca-4a55-4a7e-94c5-bfc8c2e785c5/Windows%2010%20Minimum%20Hardware%20Requirements.pdf) required for x86_64 Windows 10+.
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Matthias Krüger 2024-02-12 23:18:54 +01:00 • committed by GitHub
commit 7075502b15
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8 changed files with 13 additions and 2 deletions
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compiler/rustc_feature/src/unstable.rs
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@ -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)),