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add unwind_asm feature gate for may_unwind option

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This commit is contained in:
cynecx 2021-11-14 20:21:05 +01:00
parent 059d3b3f34
commit 686ace3b41
5 changed files with 34 additions and 0 deletions
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11
compiler/rustc_ast_lowering/src/asm.rs
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@ -49,6 +49,17 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
.struct_span_err(sp, "the `att_syntax` option is only supported on x86")
.emit();
}
if asm.options.contains(InlineAsmOptions::MAY_UNWIND)
&& !self.sess.features_untracked().asm_unwind
{
feature_err(
&self.sess.parse_sess,
sym::asm_unwind,
sp,
"the `may_unwind` option is unstable",
)
.emit();
}
let mut clobber_abis = FxHashMap::default();
if let Some(asm_arch) = asm_arch {