Skip functions that return multiple values.

llvm-svn: 47924
2008-03-05 00:36:59 +00:00
parent d5804b31c4
commit e516aa1127
1 changed files with 5 additions and 0 deletions
--- a/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
+++ b/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
@@ -50,6 +50,11 @@ bool UnifyFunctionExitNodes::runOnFunction(Function &F) {
  // Loop over all of the blocks in a function, tracking all of the blocks that
  // return.
  //
+
+  // PHINode can not handle aggregates returned by multiple value ret
+  // instructions. TODO: Handle each return value independently.
+  if (isa<StructType>(F.getReturnType()))
+    return false;
  std::vector<BasicBlock*> ReturningBlocks;
  std::vector<BasicBlock*> UnwindingBlocks;
  std::vector<BasicBlock*> UnreachableBlocks;