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Rollup merge of #99155 - Amanieu:unstable-target-features, r=davidtwco

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Keep unstable target features for asm feature checking

Inline assembly uses the target features to determine which registers
are available on the current target. However it needs to be able to
access unstable target features for this.

Fixes #99071
This commit is contained in:
Dylan DPC
2022-07-13 19:32:36 +05:30
committed by GitHub
parent 980579a5e9 dfe68eede3
commit 68cfdbb5c1
10 changed files with 67 additions and 28 deletions
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5
compiler/rustc_interface/src/util.rs
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@@ -48,7 +48,10 @@ pub fn add_configuration(
) {
let tf = sym::target_feature;
let target_features = codegen_backend.target_features(sess);
let unstable_target_features = codegen_backend.target_features(sess, true);
sess.unstable_target_features.extend(unstable_target_features.iter().cloned());
let target_features = codegen_backend.target_features(sess, false);
sess.target_features.extend(target_features.iter().cloned());
cfg.extend(target_features.into_iter().map(|feat| (tf, Some(feat))));