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

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Domagoj Babic!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28181 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2006-05-09 04:13:41 +00:00
parent b5d75b8618
commit 8d89e7bdbc
5 changed files with 32 additions and 2 deletions
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7
lib/Transforms/Utils/LowerAllocations.cpp
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@@ -13,6 +13,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Utils/UnifyFunctionExitNodes.h"
#include "llvm/Module.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Instructions.h"
@@ -39,6 +40,12 @@ namespace {
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<TargetData>();
AU.setPreservesCFG();
// This is a cluster of orthogonal Transforms:
AU.addPreserved<UnifyFunctionExitNodes>();
AU.addPreservedID(PromoteMemoryToRegisterID);
AU.addPreservedID(LowerSelectID);
AU.addPreservedID(LowerSwitchID);
}
/// doPassInitialization - For the lower allocations pass, this ensures that