Ignore dbg info intrinsics.

llvm-svn: 95828
2010-02-11 00:20:49 +00:00 · 2010-02-11 00:20:49 +00:00 · 03936a1880
parent 37993197bf
commit 03936a1880
1 changed files with 4 additions and 0 deletions
--- a/llvm/lib/Transforms/Scalar/GVN.cpp
+++ b/llvm/lib/Transforms/Scalar/GVN.cpp
@ -1891,6 +1891,10 @@ Value *GVN::lookupNumber(BasicBlock *BB, uint32_t num) {
 /// by inserting it into the appropriate sets
 bool GVN::processInstruction(Instruction *I,
                             SmallVectorImpl<Instruction*> &toErase) {
+  // Ignore dbg info intrinsics.
+  if (isa<DbgInfoIntrinsic>(I))
+    return false;
+
  if (LoadInst *LI = dyn_cast<LoadInst>(I)) {
    bool Changed = processLoad(LI, toErase);