diff options
| -rw-r--r-- | clang/lib/Sema/SemaDecl.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp index eb76b949af8..b92d76ad420 100644 --- a/clang/lib/Sema/SemaDecl.cpp +++ b/clang/lib/Sema/SemaDecl.cpp @@ -6011,9 +6011,12 @@ static void checkAttributesAfterMerging(Sema &S, NamedDecl &ND) { // Check the attributes on the function type, if any. if (const auto *FD = dyn_cast<FunctionDecl>(&ND)) { + // Don't declare this variable in the second operand of the for-statement; + // GCC miscompiles that by ending its lifetime before evaluating the + // third operand. See gcc.gnu.org/PR86769. + AttributedTypeLoc ATL; for (TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc(); - auto ATL = TL ? TL.getAsAdjusted<AttributedTypeLoc>() - : AttributedTypeLoc(); + (ATL = TL.getAsAdjusted<AttributedTypeLoc>()); TL = ATL.getModifiedLoc()) { // The [[lifetimebound]] attribute can be applied to the implicit object // parameter of a non-static member function (other than a ctor or dtor) |
