TransformUtils: Remove implicit ilist iterator conversions, NFC
Continuing the work from last week to remove implicit ilist iterator
conversions. First related commit was probably r249767, with some more
motivation in r249925. This edition gets LLVMTransformUtils compiling
without the implicit conversions.
No functional change intended.
llvm-svn: 250142
diff --git a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp
index e2bd46e..c3ab9a8 100644
--- a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -1061,15 +1061,15 @@
BasicBlock::iterator BB1_Itr = BB1->begin();
BasicBlock::iterator BB2_Itr = BB2->begin();
- Instruction *I1 = BB1_Itr++, *I2 = BB2_Itr++;
+ Instruction *I1 = &*BB1_Itr++, *I2 = &*BB2_Itr++;
// Skip debug info if it is not identical.
DbgInfoIntrinsic *DBI1 = dyn_cast<DbgInfoIntrinsic>(I1);
DbgInfoIntrinsic *DBI2 = dyn_cast<DbgInfoIntrinsic>(I2);
if (!DBI1 || !DBI2 || !DBI1->isIdenticalToWhenDefined(DBI2)) {
while (isa<DbgInfoIntrinsic>(I1))
- I1 = BB1_Itr++;
+ I1 = &*BB1_Itr++;
while (isa<DbgInfoIntrinsic>(I2))
- I2 = BB2_Itr++;
+ I2 = &*BB2_Itr++;
}
if (isa<PHINode>(I1) || !I1->isIdenticalToWhenDefined(I2) ||
(isa<InvokeInst>(I1) && !isSafeToHoistInvoke(BB1, BB2, I1, I2)))
@@ -1090,7 +1090,7 @@
// For a normal instruction, we just move one to right before the branch,
// then replace all uses of the other with the first. Finally, we remove
// the now redundant second instruction.
- BIParent->getInstList().splice(BI, BB1->getInstList(), I1);
+ BIParent->getInstList().splice(BI->getIterator(), BB1->getInstList(), I1);
if (!I2->use_empty())
I2->replaceAllUsesWith(I1);
I1->intersectOptionalDataWith(I2);
@@ -1102,16 +1102,16 @@
I2->eraseFromParent();
Changed = true;
- I1 = BB1_Itr++;
- I2 = BB2_Itr++;
+ I1 = &*BB1_Itr++;
+ I2 = &*BB2_Itr++;
// Skip debug info if it is not identical.
DbgInfoIntrinsic *DBI1 = dyn_cast<DbgInfoIntrinsic>(I1);
DbgInfoIntrinsic *DBI2 = dyn_cast<DbgInfoIntrinsic>(I2);
if (!DBI1 || !DBI2 || !DBI1->isIdenticalToWhenDefined(DBI2)) {
while (isa<DbgInfoIntrinsic>(I1))
- I1 = BB1_Itr++;
+ I1 = &*BB1_Itr++;
while (isa<DbgInfoIntrinsic>(I2))
- I2 = BB2_Itr++;
+ I2 = &*BB2_Itr++;
}
} while (I1->isIdenticalToWhenDefined(I2));
@@ -1146,7 +1146,7 @@
// Okay, it is safe to hoist the terminator.
Instruction *NT = I1->clone();
- BIParent->getInstList().insert(BI, NT);
+ BIParent->getInstList().insert(BI->getIterator(), NT);
if (!NT->getType()->isVoidTy()) {
I1->replaceAllUsesWith(NT);
I2->replaceAllUsesWith(NT);
@@ -1323,7 +1323,7 @@
if (!NewPN) {
NewPN =
PHINode::Create(DifferentOp1->getType(), 2,
- DifferentOp1->getName() + ".sink", BBEnd->begin());
+ DifferentOp1->getName() + ".sink", &BBEnd->front());
NewPN->addIncoming(DifferentOp1, BB1);
NewPN->addIncoming(DifferentOp2, BB2);
DEBUG(dbgs() << "Create PHI node " << *NewPN << "\n";);
@@ -1338,7 +1338,8 @@
// instruction in the basic block down.
bool UpdateRE1 = (I1 == BB1->begin()), UpdateRE2 = (I2 == BB2->begin());
// Sink the instruction.
- BBEnd->getInstList().splice(FirstNonPhiInBBEnd, BB1->getInstList(), I1);
+ BBEnd->getInstList().splice(FirstNonPhiInBBEnd->getIterator(),
+ BB1->getInstList(), I1);
if (!OldPN->use_empty())
OldPN->replaceAllUsesWith(I1);
OldPN->eraseFromParent();
@@ -1354,7 +1355,7 @@
RE1 = BB1->getInstList().rend();
if (UpdateRE2)
RE2 = BB2->getInstList().rend();
- FirstNonPhiInBBEnd = I1;
+ FirstNonPhiInBBEnd = &*I1;
NumSinkCommons++;
Changed = true;
}
@@ -1490,7 +1491,7 @@
for (BasicBlock::iterator BBI = ThenBB->begin(),
BBE = std::prev(ThenBB->end());
BBI != BBE; ++BBI) {
- Instruction *I = BBI;
+ Instruction *I = &*BBI;
// Skip debug info.
if (isa<DbgInfoIntrinsic>(I))
continue;
@@ -1604,8 +1605,8 @@
}
// Hoist the instructions.
- BB->getInstList().splice(BI, ThenBB->getInstList(), ThenBB->begin(),
- std::prev(ThenBB->end()));
+ BB->getInstList().splice(BI->getIterator(), ThenBB->getInstList(),
+ ThenBB->begin(), std::prev(ThenBB->end()));
// Insert selects and rewrite the PHI operands.
IRBuilder<true, NoFolder> Builder(BI);
@@ -1746,13 +1747,13 @@
// Check for trivial simplification.
if (Value *V = SimplifyInstruction(N, DL)) {
- TranslateMap[BBI] = V;
+ TranslateMap[&*BBI] = V;
delete N; // Instruction folded away, don't need actual inst
} else {
// Insert the new instruction into its new home.
EdgeBB->getInstList().insert(InsertPt, N);
if (!BBI->use_empty())
- TranslateMap[BBI] = N;
+ TranslateMap[&*BBI] = N;
}
}
@@ -1849,7 +1850,7 @@
} else {
DomBlock = *pred_begin(IfBlock1);
for (BasicBlock::iterator I = IfBlock1->begin();!isa<TerminatorInst>(I);++I)
- if (!AggressiveInsts.count(I) && !isa<DbgInfoIntrinsic>(I)) {
+ if (!AggressiveInsts.count(&*I) && !isa<DbgInfoIntrinsic>(I)) {
// This is not an aggressive instruction that we can promote.
// Because of this, we won't be able to get rid of the control
// flow, so the xform is not worth it.
@@ -1862,7 +1863,7 @@
} else {
DomBlock = *pred_begin(IfBlock2);
for (BasicBlock::iterator I = IfBlock2->begin();!isa<TerminatorInst>(I);++I)
- if (!AggressiveInsts.count(I) && !isa<DbgInfoIntrinsic>(I)) {
+ if (!AggressiveInsts.count(&*I) && !isa<DbgInfoIntrinsic>(I)) {
// This is not an aggressive instruction that we can promote.
// Because of this, we won't be able to get rid of the control
// flow, so the xform is not worth it.
@@ -1881,13 +1882,13 @@
// Move all 'aggressive' instructions, which are defined in the
// conditional parts of the if's up to the dominating block.
if (IfBlock1)
- DomBlock->getInstList().splice(InsertPt,
+ DomBlock->getInstList().splice(InsertPt->getIterator(),
IfBlock1->getInstList(), IfBlock1->begin(),
- IfBlock1->getTerminator());
+ IfBlock1->getTerminator()->getIterator());
if (IfBlock2)
- DomBlock->getInstList().splice(InsertPt,
+ DomBlock->getInstList().splice(InsertPt->getIterator(),
IfBlock2->getInstList(), IfBlock2->begin(),
- IfBlock2->getTerminator());
+ IfBlock2->getTerminator()->getIterator());
while (PHINode *PN = dyn_cast<PHINode>(BB->begin())) {
// Change the PHI node into a select instruction.
@@ -2056,7 +2057,7 @@
BI->getSuccessor(0) == PBI->getSuccessor(1))) {
for (BasicBlock::iterator I = BB->begin(), E = BB->end();
I != E; ) {
- Instruction *Curr = I++;
+ Instruction *Curr = &*I++;
if (isa<CmpInst>(Curr)) {
Cond = Curr;
break;
@@ -2076,7 +2077,7 @@
return false;
// Make sure the instruction after the condition is the cond branch.
- BasicBlock::iterator CondIt = Cond; ++CondIt;
+ BasicBlock::iterator CondIt = ++Cond->getIterator();
// Ignore dbg intrinsics.
while (isa<DbgInfoIntrinsic>(CondIt)) ++CondIt;
@@ -2094,7 +2095,7 @@
// Ignore dbg intrinsics.
if (isa<DbgInfoIntrinsic>(I))
continue;
- if (!I->hasOneUse() || !isSafeToSpeculativelyExecute(I))
+ if (!I->hasOneUse() || !isSafeToSpeculativelyExecute(&*I))
return false;
// I has only one use and can be executed unconditionally.
Instruction *User = dyn_cast<Instruction>(I->user_back());
@@ -2191,7 +2192,7 @@
Instruction *NewBonusInst = BonusInst->clone();
RemapInstruction(NewBonusInst, VMap,
RF_NoModuleLevelChanges | RF_IgnoreMissingEntries);
- VMap[BonusInst] = NewBonusInst;
+ VMap[&*BonusInst] = NewBonusInst;
// If we moved a load, we cannot any longer claim any knowledge about
// its potential value. The previous information might have been valid
@@ -2200,8 +2201,8 @@
// semantics we don't understand.
NewBonusInst->dropUnknownNonDebugMetadata();
- PredBlock->getInstList().insert(PBI, NewBonusInst);
- NewBonusInst->takeName(BonusInst);
+ PredBlock->getInstList().insert(PBI->getIterator(), NewBonusInst);
+ NewBonusInst->takeName(&*BonusInst);
BonusInst->setName(BonusInst->getName() + ".old");
}
@@ -2210,7 +2211,7 @@
Instruction *New = Cond->clone();
RemapInstruction(New, VMap,
RF_NoModuleLevelChanges | RF_IgnoreMissingEntries);
- PredBlock->getInstList().insert(PBI, New);
+ PredBlock->getInstList().insert(PBI->getIterator(), New);
New->takeName(Cond);
Cond->setName(New->getName() + ".old");
@@ -2359,10 +2360,9 @@
// simplifycfg will thread the block.
if (BlockIsSimpleEnoughToThreadThrough(BB)) {
pred_iterator PB = pred_begin(BB), PE = pred_end(BB);
- PHINode *NewPN = PHINode::Create(Type::getInt1Ty(BB->getContext()),
- std::distance(PB, PE),
- BI->getCondition()->getName() + ".pr",
- BB->begin());
+ PHINode *NewPN = PHINode::Create(
+ Type::getInt1Ty(BB->getContext()), std::distance(PB, PE),
+ BI->getCondition()->getName() + ".pr", &BB->front());
// Okay, we're going to insert the PHI node. Since PBI is not the only
// predecessor, compute the PHI'd conditional value for all of the preds.
// Any predecessor where the condition is not computable we keep symbolic.
@@ -2845,7 +2845,8 @@
// then we evaluate them with an explicit branch first. Split the block
// right before the condbr to handle it.
if (ExtraCase) {
- BasicBlock *NewBB = BB->splitBasicBlock(BI, "switch.early.test");
+ BasicBlock *NewBB =
+ BB->splitBasicBlock(BI->getIterator(), "switch.early.test");
// Remove the uncond branch added to the old block.
TerminatorInst *OldTI = BB->getTerminator();
Builder.SetInsertPoint(OldTI);
@@ -2909,7 +2910,7 @@
return false;
// Check that there are no other instructions except for debug intrinsics.
- BasicBlock::iterator I = LPInst, E = RI;
+ BasicBlock::iterator I = LPInst->getIterator(), E = RI->getIterator();
while (++I != E)
if (!isa<DbgInfoIntrinsic>(I))
return false;
@@ -2941,7 +2942,7 @@
return false;
// Check that there are no other instructions except for debug intrinsics.
- BasicBlock::iterator I = CPInst, E = RI;
+ BasicBlock::iterator I = CPInst->getIterator(), E = RI->getIterator();
while (++I != E)
if (!isa<DbgInfoIntrinsic>(I))
return false;
@@ -2958,8 +2959,8 @@
if (UnwindDest) {
// First, go through the PHI nodes in UnwindDest and update any nodes that
// reference the block we are removing
- for (BasicBlock::iterator I = UnwindDest->begin(),
- IE = UnwindDest->getFirstNonPHI();
+ for (BasicBlock::iterator I = UnwindDest->begin(),
+ IE = UnwindDest->getFirstNonPHI()->getIterator();
I != IE; ++I) {
PHINode *DestPN = cast<PHINode>(I);
@@ -3004,7 +3005,8 @@
// Sink any remaining PHI nodes directly into UnwindDest.
Instruction *InsertPt = UnwindDest->getFirstNonPHI();
- for (BasicBlock::iterator I = BB->begin(), IE = BB->getFirstNonPHI();
+ for (BasicBlock::iterator I = BB->begin(),
+ IE = BB->getFirstNonPHI()->getIterator();
I != IE;) {
// The iterator must be incremented here because the instructions are
// being moved to another block.
@@ -3098,8 +3100,8 @@
// If there are any instructions immediately before the unreachable that can
// be removed, do so.
- while (UI != BB->begin()) {
- BasicBlock::iterator BBI = UI;
+ while (UI->getIterator() != BB->begin()) {
+ BasicBlock::iterator BBI = UI->getIterator();
--BBI;
// Do not delete instructions that can have side effects which might cause
// the unreachable to not be reachable; specifically, calls and volatile
@@ -3354,8 +3356,8 @@
DEBUG(dbgs() << "SimplifyCFG: switch default is dead.\n");
BasicBlock *NewDefault = SplitBlockPredecessors(SI->getDefaultDest(),
SI->getParent(), "");
- SI->setDefaultDest(NewDefault);
- SplitBlock(NewDefault, NewDefault->begin());
+ SI->setDefaultDest(&*NewDefault);
+ SplitBlock(&*NewDefault, &NewDefault->front());
auto *OldTI = NewDefault->getTerminator();
new UnreachableInst(SI->getContext(), OldTI);
EraseTerminatorInstAndDCECond(OldTI);
@@ -3552,7 +3554,7 @@
} else if (isa<DbgInfoIntrinsic>(I)) {
// Skip debug intrinsic.
continue;
- } else if (Constant *C = ConstantFold(I, DL, ConstantPool)) {
+ } else if (Constant *C = ConstantFold(&*I, DL, ConstantPool)) {
// Instruction is side-effect free and constant.
// If the instruction has uses outside this block or a phi node slot for
@@ -3569,7 +3571,7 @@
return false;
}
- ConstantPool.insert(std::make_pair(I, C));
+ ConstantPool.insert(std::make_pair(&*I, C));
} else {
break;
}
@@ -4535,7 +4537,7 @@
return true;
// If the Terminator is the only non-phi instruction, simplify the block.
- BasicBlock::iterator I = BB->getFirstNonPHIOrDbg();
+ BasicBlock::iterator I = BB->getFirstNonPHIOrDbg()->getIterator();
if (I->isTerminator() && BB != &BB->getParent()->getEntryBlock() &&
TryToSimplifyUncondBranchFromEmptyBlock(BB))
return true;