diff options
Diffstat (limited to 'contrib/llvm/lib/Transforms/Utils/Mem2Reg.cpp')
| -rw-r--r-- | contrib/llvm/lib/Transforms/Utils/Mem2Reg.cpp | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/contrib/llvm/lib/Transforms/Utils/Mem2Reg.cpp b/contrib/llvm/lib/Transforms/Utils/Mem2Reg.cpp index 101645b..f4ca81a 100644 --- a/contrib/llvm/lib/Transforms/Utils/Mem2Reg.cpp +++ b/contrib/llvm/lib/Transforms/Utils/Mem2Reg.cpp @@ -27,18 +27,17 @@ STATISTIC(NumPromoted, "Number of alloca's promoted"); namespace { struct PromotePass : public FunctionPass { static char ID; // Pass identification, replacement for typeid - PromotePass() : FunctionPass(ID) {} + PromotePass() : FunctionPass(ID) { + initializePromotePassPass(*PassRegistry::getPassRegistry()); + } // runOnFunction - To run this pass, first we calculate the alloca // instructions that are safe for promotion, then we promote each one. // virtual bool runOnFunction(Function &F); - // getAnalysisUsage - We need dominance frontiers - // virtual void getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequired<DominatorTree>(); - AU.addRequired<DominanceFrontier>(); AU.setPreservesCFG(); // This is a cluster of orthogonal Transforms AU.addPreserved<UnifyFunctionExitNodes>(); @@ -49,8 +48,11 @@ namespace { } // end of anonymous namespace char PromotePass::ID = 0; -INITIALIZE_PASS(PromotePass, "mem2reg", "Promote Memory to Register", - false, false); +INITIALIZE_PASS_BEGIN(PromotePass, "mem2reg", "Promote Memory to Register", + false, false) +INITIALIZE_PASS_DEPENDENCY(DominatorTree) +INITIALIZE_PASS_END(PromotePass, "mem2reg", "Promote Memory to Register", + false, false) bool PromotePass::runOnFunction(Function &F) { std::vector<AllocaInst*> Allocas; @@ -60,7 +62,6 @@ bool PromotePass::runOnFunction(Function &F) { bool Changed = false; DominatorTree &DT = getAnalysis<DominatorTree>(); - DominanceFrontier &DF = getAnalysis<DominanceFrontier>(); while (1) { Allocas.clear(); @@ -74,7 +75,7 @@ bool PromotePass::runOnFunction(Function &F) { if (Allocas.empty()) break; - PromoteMemToReg(Allocas, DT, DF); + PromoteMemToReg(Allocas, DT); NumPromoted += Allocas.size(); Changed = true; } |
