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Don't use an induction variable type as a memory access type.

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Use VoidTy instead, to be properly conservative.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66463 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-03-09 21:04:19 +00:00
parent 21e7722868
commit 53f2ae268a
1 changed files with 5 additions and 3 deletions
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8
lib/Transforms/Scalar/LoopStrengthReduce.cpp
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@ -1774,7 +1774,7 @@ LoopStrengthReduce::PrepareToStrengthReduceFromSmallerStride(
}
static bool IsImmFoldedIntoAddrMode(GlobalValue *GV, int64_t Offset,
const Type *ReplacedTy,
const Type *AccessTy,
std::vector<BasedUser> &UsersToProcess,
const TargetLowering *TLI) {
SmallVector<Instruction*, 16> AddrModeInsts;
@ -1783,7 +1783,7 @@ static bool IsImmFoldedIntoAddrMode(GlobalValue *GV, int64_t Offset,
continue;
ExtAddrMode AddrMode =
AddressingModeMatcher::Match(UsersToProcess[i].OperandValToReplace,
ReplacedTy, UsersToProcess[i].Inst,
AccessTy, UsersToProcess[i].Inst,
AddrModeInsts, *TLI);
if (GV && GV != AddrMode.BaseGV)
return false;
@ -1858,7 +1858,9 @@ void LoopStrengthReduce::StrengthReduceStridedIVUsers(const SCEVHandle &Stride,
if (SCEVConstant *SC = dyn_cast<SCEVConstant>(Imm))
Offset = SC->getValue()->getSExtValue();
if (GV || Offset)
DoSink = IsImmFoldedIntoAddrMode(GV, Offset, ReplacedTy,
// Pass VoidTy as the AccessTy to be conservative, because
// there could be multiple access types among all the uses.
DoSink = IsImmFoldedIntoAddrMode(GV, Offset, Type::VoidTy,
UsersToProcess, TLI);
if (DoSink) {