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-rw-r--r--clang/lib/Basic/Targets/X86.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/clang/lib/Basic/Targets/X86.h b/clang/lib/Basic/Targets/X86.h
index 2b126268beb..b69a050d237 100644
--- a/clang/lib/Basic/Targets/X86.h
+++ b/clang/lib/Basic/Targets/X86.h
@@ -198,7 +198,7 @@ public:
StringRef Expression) const override {
StringRef::iterator I, E;
for (I = Constraint.begin(), E = Constraint.end(); I != E; ++I) {
- if (isalpha(*I))
+ if (isalpha(*I) || *I == '@')
break;
}
if (I == E)
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