diff options
| -rw-r--r-- | llvm/lib/Analysis/ScalarEvolution.cpp | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp index 6b32a7a9d29..7e065215cb9 100644 --- a/llvm/lib/Analysis/ScalarEvolution.cpp +++ b/llvm/lib/Analysis/ScalarEvolution.cpp @@ -1303,9 +1303,9 @@ static const SCEV *getPreStartForExtend(const SCEVAddRecExpr *AR, Type *Ty, ExtendOpTraits<ExtendOpTy>::getOverflowLimitForStep(Step, &Pred, SE); if (OverflowLimit && - SE->isLoopEntryGuardedByCond(L, Pred, PreStart, OverflowLimit)) { + SE->isLoopEntryGuardedByCond(L, Pred, PreStart, OverflowLimit)) return PreStart; - } + return nullptr; } @@ -3237,9 +3237,8 @@ uint64_t ScalarEvolution::getTypeSizeInBits(Type *Ty) const { Type *ScalarEvolution::getEffectiveSCEVType(Type *Ty) const { assert(isSCEVable(Ty) && "Type is not SCEVable!"); - if (Ty->isIntegerTy()) { + if (Ty->isIntegerTy()) return Ty; - } // The only other support type is pointer. assert(Ty->isPointerTy() && "Unexpected non-pointer non-integer type!"); @@ -3514,8 +3513,7 @@ const SCEV *ScalarEvolution::getPointerBase(const SCEV *V) { if (const SCEVCastExpr *Cast = dyn_cast<SCEVCastExpr>(V)) { return getPointerBase(Cast->getOperand()); - } - else if (const SCEVNAryExpr *NAry = dyn_cast<SCEVNAryExpr>(V)) { + } else if (const SCEVNAryExpr *NAry = dyn_cast<SCEVNAryExpr>(V)) { const SCEV *PtrOp = nullptr; for (SCEVNAryExpr::op_iterator I = NAry->op_begin(), E = NAry->op_end(); I != E; ++I) { @@ -3788,8 +3786,8 @@ static bool IsAvailableOnEntry(const Loop *L, DominatorTree &DT, const SCEV *S, case scUDivExpr: case scCouldNotCompute: - // We do not try to smart about these at all. - return setUnavailable(); + // We do not try to smart about these at all. + return setUnavailable(); } llvm_unreachable("switch should be fully covered!"); } @@ -5646,9 +5644,8 @@ static PHINode *getConstantEvolvingPHI(Value *V, const Loop *L) { Instruction *I = dyn_cast<Instruction>(V); if (!I || !canConstantEvolve(I, L)) return nullptr; - if (PHINode *PN = dyn_cast<PHINode>(I)) { + if (PHINode *PN = dyn_cast<PHINode>(I)) return PN; - } // Record non-constant instructions contained by the loop. DenseMap<Instruction *, PHINode *> PHIMap; |
