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A few more places where SCEVExpander bits need to skip over debug intrinsics 

when iterating through instructions. Yet more work for rdar://7797940

llvm-svn: 106149
This commit is contained in:
Jim Grosbach 2010-06-16 21:13:38 +00:00
parent 7dbfb46163
commit fd3b4e7390
1 changed files with 4 additions and 3 deletions
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7
llvm/lib/Analysis/ScalarEvolutionExpander.cpp
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@ -97,7 +97,7 @@ Value *SCEVExpander::InsertNoopCastOfTo(Value *V, const Type *Ty) {
BasicBlock::iterator It = I; ++It;
if (isa<InvokeInst>(I))
It = cast<InvokeInst>(I)->getNormalDest()->begin();
while (isa<PHINode>(It)) ++It;
while (isa<PHINode>(It) || isa<DbgInfoIntrinsic>(It)) ++It;
if (It != BasicBlock::iterator(CI)) {
// Recreate the cast after the user.
// The old cast is left in place in case it is being used
@ -115,7 +115,7 @@ Value *SCEVExpander::InsertNoopCastOfTo(Value *V, const Type *Ty) {
BasicBlock::iterator IP = I; ++IP;
if (InvokeInst *II = dyn_cast<InvokeInst>(I))
IP = II->getNormalDest()->begin();
while (isa<PHINode>(IP)) ++IP;
while (isa<PHINode>(IP) || isa<DbgInfoIntrinsic>(IP)) ++IP;
Instruction *CI = CastInst::Create(Op, V, Ty, V->getName(), IP);
rememberInstruction(CI);
return CI;
@ -1070,7 +1070,8 @@ Value *SCEVExpander::visitAddRecExpr(const SCEVAddRecExpr *S) {
BasicBlock::iterator SaveInsertPt = Builder.GetInsertPoint();
BasicBlock::iterator NewInsertPt =
llvm::next(BasicBlock::iterator(cast<Instruction>(V)));
while (isa<PHINode>(NewInsertPt)) ++NewInsertPt;
while (isa<PHINode>(NewInsertPt) || isa<DbgInfoIntrinsic>(NewInsertPt))
++NewInsertPt;
V = expandCodeFor(SE.getTruncateExpr(SE.getUnknown(V), Ty), 0,
NewInsertPt);
restoreInsertPoint(SaveInsertBB, SaveInsertPt);