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-rw-r--r--llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp b/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
index 35f8402..de22d23 100644
--- a/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
@@ -214,6 +214,10 @@ void FunctionLoweringInfo::set(const Function &fn, MachineFunction &mf,
if (CI->isMustTailCall() && Fn->isVarArg())
MF->getFrameInfo().setHasMustTailInVarArgFunc(true);
}
+
+ // Determine if there is a call to setjmp in the machine function.
+ if (Call->hasFnAttr(Attribute::ReturnsTwice))
+ MF->setExposesReturnsTwice(true);
}
// Mark values used outside their block as exported, by allocating