diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/LoopInterchange.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopInterchange.cpp | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopInterchange.cpp b/llvm/lib/Transforms/Scalar/LoopInterchange.cpp index 5dc0de25971..2f50e2dd77f 100644 --- a/llvm/lib/Transforms/Scalar/LoopInterchange.cpp +++ b/llvm/lib/Transforms/Scalar/LoopInterchange.cpp @@ -812,7 +812,6 @@ bool LoopInterchangeLegality::currentLimitations() { // A[j+1][i+2] = A[j][i]+k; // } // } - bool FoundInduction = false; Instruction *InnerIndexVarInc = nullptr; if (InnerInductionVar->getIncomingBlock(0) == InnerLoopPreHeader) InnerIndexVarInc = @@ -828,17 +827,17 @@ bool LoopInterchangeLegality::currentLimitations() { // we do not have any instruction between the induction variable and branch // instruction. - for (auto I = InnerLoopLatch->rbegin(), E = InnerLoopLatch->rend(); - I != E && !FoundInduction; ++I) { - if (isa<BranchInst>(*I) || isa<CmpInst>(*I) || isa<TruncInst>(*I)) + bool FoundInduction = false; + for (const Instruction &I : reverse(*InnerLoopLatch)) { + if (isa<BranchInst>(I) || isa<CmpInst>(I) || isa<TruncInst>(I)) continue; - const Instruction &Ins = *I; // We found an instruction. If this is not induction variable then it is not // safe to split this loop latch. - if (!Ins.isIdenticalTo(InnerIndexVarInc)) + if (!I.isIdenticalTo(InnerIndexVarInc)) return true; - else - FoundInduction = true; + + FoundInduction = true; + break; } // The loop latch ended and we didn't find the induction variable return as // current limitation. |
