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Roll out r123609 due to failures on the llvm-x86_64-linux-checks bot.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123618 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Cameron Zwarich
2011-01-17 07:26:51 +00:00
parent 119266c4ae
commit b1086a9c6d
4 changed files with 64 additions and 124 deletions
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5
lib/Transforms/Utils/Mem2Reg.cpp
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@ -40,6 +40,7 @@ namespace {
//
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<DominatorTree>();
AU.addRequired<DominanceFrontier>();
AU.setPreservesCFG();
// This is a cluster of orthogonal Transforms
AU.addPreserved<UnifyFunctionExitNodes>();
@ -53,6 +54,7 @@ char PromotePass::ID = 0;
INITIALIZE_PASS_BEGIN(PromotePass, "mem2reg", "Promote Memory to Register",
false, false)
INITIALIZE_PASS_DEPENDENCY(DominatorTree)
INITIALIZE_PASS_DEPENDENCY(DominanceFrontier)
INITIALIZE_PASS_END(PromotePass, "mem2reg", "Promote Memory to Register",
false, false)
@ -64,6 +66,7 @@ bool PromotePass::runOnFunction(Function &F) {
bool Changed = false;
DominatorTree &DT = getAnalysis<DominatorTree>();
DominanceFrontier &DF = getAnalysis<DominanceFrontier>();
while (1) {
Allocas.clear();
@ -77,7 +80,7 @@ bool PromotePass::runOnFunction(Function &F) {
if (Allocas.empty()) break;
PromoteMemToReg(Allocas, DT);
PromoteMemToReg(Allocas, DT, DF);
NumPromoted += Allocas.size();
Changed = true;
}