Patch to make some xforms preserve each other. Patch contributed by

Domagoj Babic! llvm-svn: 28181
2006-05-09 04:13:41 +00:00
parent 357f3e8231
commit 4fe87d67c4
5 changed files with 32 additions and 2 deletions
--- a/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
+++ b/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
@@ -32,6 +32,10 @@ Pass *llvm::createUnifyFunctionExitNodesPass() {
 void UnifyFunctionExitNodes::getAnalysisUsage(AnalysisUsage &AU) const{
  // We preserve the non-critical-edgeness property
  AU.addPreservedID(BreakCriticalEdgesID);
+  // This is a cluster of orthogonal Transforms
+  AU.addPreservedID(PromoteMemoryToRegisterID);
+  AU.addPreservedID(LowerSelectID);
+  AU.addPreservedID(LowerSwitchID);
 }

 // UnifyAllExitNodes - Unify all exit nodes of the CFG by creating a new