diff options
author | Chris Lattner <sabre@nondot.org> | 2010-04-03 06:17:08 +0000 |
---|---|---|
committer | Chris Lattner <sabre@nondot.org> | 2010-04-03 06:17:08 +0000 |
commit | c91961e31b2a1cae655928e20b83cb6a457fdcd4 (patch) | |
tree | 8d23c547a9e3842940c638277dc1fee0a14850a2 /lib/Transforms | |
parent | 70c0d4f7eb9c14bccc8a585be4086712e46bfbdb (diff) |
rename PH -> PN to be consistent with WeakPN and the rest
of llvm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100276 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
-rw-r--r-- | lib/Transforms/Scalar/IndVarSimplify.cpp | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/lib/Transforms/Scalar/IndVarSimplify.cpp b/lib/Transforms/Scalar/IndVarSimplify.cpp index 650231b8e5..d8ecc8f3be 100644 --- a/lib/Transforms/Scalar/IndVarSimplify.cpp +++ b/lib/Transforms/Scalar/IndVarSimplify.cpp @@ -660,34 +660,34 @@ static bool convertToInt(const APFloat &APF, uint64_t &intVal) { /// for(int i = 0; i < 10000; ++i) /// bar((double)i); /// -void IndVarSimplify::HandleFloatingPointIV(Loop *L, PHINode *PH) { - unsigned IncomingEdge = L->contains(PH->getIncomingBlock(0)); +void IndVarSimplify::HandleFloatingPointIV(Loop *L, PHINode *PN) { + unsigned IncomingEdge = L->contains(PN->getIncomingBlock(0)); unsigned BackEdge = IncomingEdge^1; // Check incoming value. ConstantFP *InitValueVal = - dyn_cast<ConstantFP>(PH->getIncomingValue(IncomingEdge)); + dyn_cast<ConstantFP>(PN->getIncomingValue(IncomingEdge)); if (!InitValueVal) return; uint64_t InitValue; if (!convertToInt(InitValueVal->getValueAPF(), InitValue)) return; - // Check IV increment. Reject this PH if increment operation is not + // Check IV increment. Reject this PN if increment operation is not // an add or increment value can not be represented by an integer. BinaryOperator *Incr = - dyn_cast<BinaryOperator>(PH->getIncomingValue(BackEdge)); + dyn_cast<BinaryOperator>(PN->getIncomingValue(BackEdge)); if (Incr == 0 || Incr->getOpcode() != Instruction::FAdd) return; // If this is not an add of the PHI with a constantfp, or if the constant fp // is not an integer, bail out. ConstantFP *IncValueVal = dyn_cast<ConstantFP>(Incr->getOperand(1)); uint64_t IntValue; - if (IncValueVal == 0 || Incr->getOperand(0) != PH || + if (IncValueVal == 0 || Incr->getOperand(0) != PN || !convertToInt(IncValueVal->getValueAPF(), IntValue)) return; - // Check Incr uses. One user is PH and the other user is an exit condition + // Check Incr uses. One user is PN and the other user is an exit condition // used by the conditional terminator. Value::use_iterator IncrUse = Incr->use_begin(); Instruction *U1 = cast<Instruction>(IncrUse++); @@ -729,25 +729,25 @@ void IndVarSimplify::HandleFloatingPointIV(Loop *L, PHINode *PH) { case CmpInst::FCMP_ULE: NewPred = CmpInst::ICMP_ULE; break; } - const IntegerType *Int32Ty = Type::getInt32Ty(PH->getContext()); + const IntegerType *Int32Ty = Type::getInt32Ty(PN->getContext()); // Insert new i32 integer induction variable. - PHINode *NewPHI = PHINode::Create(Int32Ty, PH->getName()+".int", PH); + PHINode *NewPHI = PHINode::Create(Int32Ty, PN->getName()+".int", PN); NewPHI->addIncoming(ConstantInt::get(Int32Ty, InitValue), - PH->getIncomingBlock(IncomingEdge)); + PN->getIncomingBlock(IncomingEdge)); Value *NewAdd = BinaryOperator::CreateAdd(NewPHI, ConstantInt::get(Int32Ty, IntValue), Incr->getName()+".int", Incr); - NewPHI->addIncoming(NewAdd, PH->getIncomingBlock(BackEdge)); + NewPHI->addIncoming(NewAdd, PN->getIncomingBlock(BackEdge)); ICmpInst *NewCompare = new ICmpInst(TheBr, NewPred, NewAdd, ConstantInt::get(Int32Ty, ExitValue), Compare->getName()); - // In the following deletions, PH may become dead and may be deleted. + // In the following deletions, PN may become dead and may be deleted. // Use a WeakVH to observe whether this happens. - WeakVH WeakPH = PH; + WeakVH WeakPH = PN; // Delete the old floating point exit comparison. The branch starts using the // new comparison. @@ -768,15 +768,15 @@ void IndVarSimplify::HandleFloatingPointIV(Loop *L, PHINode *PH) { // platforms. if (WeakPH) { if (CanUseSIToFP(InitValueVal, ExitValueVal, InitValue, ExitValue)) { - SIToFPInst *Conv = new SIToFPInst(NewPHI, PH->getType(), "indvar.conv", - PH->getParent()->getFirstNonPHI()); - PH->replaceAllUsesWith(Conv); + SIToFPInst *Conv = new SIToFPInst(NewPHI, PN->getType(), "indvar.conv", + PN->getParent()->getFirstNonPHI()); + PN->replaceAllUsesWith(Conv); } else { - UIToFPInst *Conv = new UIToFPInst(NewPHI, PH->getType(), "indvar.conv", - PH->getParent()->getFirstNonPHI()); - PH->replaceAllUsesWith(Conv); + UIToFPInst *Conv = new UIToFPInst(NewPHI, PN->getType(), "indvar.conv", + PN->getParent()->getFirstNonPHI()); + PN->replaceAllUsesWith(Conv); } - RecursivelyDeleteTriviallyDeadInstructions(PH); + RecursivelyDeleteTriviallyDeadInstructions(PN); } // Add a new IVUsers entry for the newly-created integer PHI. |