diff --git a/lib/Transforms/Utils/PromoteMemoryToRegister.cpp b/lib/Transforms/Utils/PromoteMemoryToRegister.cpp index c5861832a1a..c0c7f656227 100644 --- a/lib/Transforms/Utils/PromoteMemoryToRegister.cpp +++ b/lib/Transforms/Utils/PromoteMemoryToRegister.cpp @@ -273,16 +273,6 @@ void PromoteMem2Reg::run() { // analogous to finding the 'uses' and 'definitions' of each variable. Info.AnalyzeAlloca(AI); - // If the alloca is only read and written in one basic block, just perform a - // linear sweep over the block to eliminate it. - if (Info.OnlyUsedInOneBlock) { - LocallyUsedAllocas[Info.OnlyBlock].push_back(AI); - - // Remove the alloca from the Allocas list, since it will be processed. - RemoveFromAllocasList(AllocaNum); - continue; - } - // If there is only a single store to this value, replace any loads of // it that are directly dominated by the definition with the value stored. if (Info.DefiningBlocks.size() == 1) { @@ -303,6 +293,15 @@ void PromoteMem2Reg::run() { } } + // If the alloca is only read and written in one basic block, just perform a + // linear sweep over the block to eliminate it. + if (Info.OnlyUsedInOneBlock) { + LocallyUsedAllocas[Info.OnlyBlock].push_back(AI); + + // Remove the alloca from the Allocas list, since it will be processed. + RemoveFromAllocasList(AllocaNum); + continue; + } if (AST) PointerAllocaValues[AllocaNum] = Info.AllocaPointerVal;