Regenerate.
llvm-svn: 33624
diff --git a/llvm/tools/llvm-upgrade/UpgradeParser.y.cvs b/llvm/tools/llvm-upgrade/UpgradeParser.y.cvs
index 64a20d1..a5079d4 100644
--- a/llvm/tools/llvm-upgrade/UpgradeParser.y.cvs
+++ b/llvm/tools/llvm-upgrade/UpgradeParser.y.cvs
@@ -505,6 +505,25 @@
// and back patchs after we are done.
//
+/// This function determines if two function types differ only in their use of
+/// the sret parameter attribute in the first argument. If they are identical
+/// in all other respects, it returns true. Otherwise, it returns false.
+bool FuncTysDifferOnlyBySRet(const FunctionType *F1,
+ const FunctionType *F2) {
+ if (F1->getReturnType() != F2->getReturnType() ||
+ F1->getNumParams() != F2->getNumParams() ||
+ F1->getParamAttrs(0) != F2->getParamAttrs(0))
+ return false;
+ unsigned SRetMask = ~unsigned(FunctionType::StructRetAttribute);
+ for (unsigned i = 0; i < F1->getNumParams(); ++i) {
+ if (F1->getParamType(i) != F2->getParamType(i) ||
+ unsigned(F1->getParamAttrs(i+1)) & SRetMask !=
+ unsigned(F2->getParamAttrs(i+1)) & SRetMask)
+ return false;
+ }
+ return true;
+}
+
// ResolveDefinitions - If we could not resolve some defs at parsing
// time (forward branches, phi functions for loops, etc...) resolve the
// defs now...
@@ -537,10 +556,26 @@
InsertValue(V, *FutureLateResolvers);
} else {
if (DID.Type == ValID::NameVal) {
- error("Reference to an invalid definition: '" +DID.getName()+
- "' of type '" + V->getType()->getDescription() + "'",
- PHI->second.second);
- return;
+ // The upgrade of csretcc to sret param attribute may have caused a
+ // function to not be found because the param attribute changed the
+ // type of the called function. Detect this situation and insert a
+ // cast as necessary.
+ bool fixed = false;
+ if (const PointerType *PTy = dyn_cast<PointerType>(V->getType()))
+ if (const FunctionType *FTy =
+ dyn_cast<FunctionType>(PTy->getElementType()))
+ if (Function *OtherF =
+ CurModule.CurrentModule->getNamedFunction(DID.getName()))
+ if (FuncTysDifferOnlyBySRet(FTy,OtherF->getFunctionType())) {
+ V->replaceAllUsesWith(ConstantExpr::getBitCast(OtherF, PTy));
+ fixed = true;
+ }
+ if (!fixed) {
+ error("Reference to an invalid definition: '" +DID.getName()+
+ "' of type '" + V->getType()->getDescription() + "'",
+ PHI->second.second);
+ return;
+ }
} else {
error("Reference to an invalid definition: #" +
itostr(DID.Num) + " of type '" +