Fix bug: IPConstantProp/deadarg.ll

llvm-svn: 17679
2004-11-11 07:46:29 +00:00 · 2004-11-11 07:46:29 +00:00 · 5fa696f8e4
parent ba582f0d11
commit 5fa696f8e4
1 changed files with 2 additions and 2 deletions
--- a/llvm/lib/Transforms/IPO/IPConstantPropagation.cpp
+++ b/llvm/lib/Transforms/IPO/IPConstantPropagation.cpp
@ -113,9 +113,9 @@ bool IPCP::processFunction(Function &F) {
  bool MadeChange = false;
  for (unsigned i = 0, e = ArgumentConstants.size(); i != e; ++i, ++AI)
    // Do we have a constant argument!?
-    if (!ArgumentConstants[i].second && !AI->use_empty()) {
-      assert(ArgumentConstants[i].first && "Unknown constant value!");
+    if (!ArgumentConstants[i].second) {
      Value *V = ArgumentConstants[i].first;
+      if (V == 0) V = UndefValue::get(AI->getType());
      AI->replaceAllUsesWith(V);
      ++NumArgumentsProped;
      MadeChange = true;