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add ABI target features *before* -Ctarget-features

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This commit is contained in:
Ralf Jung 2024-12-27 22:19:55 +01:00
parent eb527424a5
commit 912b7291d0
4 changed files with 19 additions and 16 deletions
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12
compiler/rustc_codegen_llvm/src/llvm_util.rs
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@ -779,12 +779,12 @@ pub(crate) fn global_llvm_features(
// we will silently correct them rather than silently producing wrong code.
// (The target sanity check tries to catch this, but we can't know which features are
// enabled in LLVM by default so we can't be fully sure about that check.)
for feature in abi_enable {
all_rust_features.push((true, feature));
}
for feature in abi_disable {
all_rust_features.push((false, feature));
}
// We add these at the beginning of the list so that `-Ctarget-features` can
// still override it... that's unsound, but more compatible with past behavior.
all_rust_features.splice(
0..0,
abi_enable.iter().map(|&f| (true, f)).chain(abi_disable.iter().map(|&f| (false, f))),
);
// Translate this into LLVM features.
let feats = all_rust_features