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Add in support for getIntPtrType to get the pointer type based on the address space.

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This checkin also adds in some tests that utilize these paths and updates some of the
clients.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166578 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Micah Villmow
2012-10-24 15:52:52 +00:00
parent 3575222175
commit aa76e9e2cf
46 changed files with 813 additions and 450 deletions
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10
lib/Transforms/Scalar/IndVarSimplify.cpp
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@ -1430,7 +1430,8 @@ FindLoopCounter(Loop *L, const SCEV *BECount,
/// genLoopLimit - Help LinearFunctionTestReplace by generating a value that
/// holds the RHS of the new loop test.
static Value *genLoopLimit(PHINode *IndVar, const SCEV *IVCount, Loop *L,
SCEVExpander &Rewriter, ScalarEvolution *SE) {
SCEVExpander &Rewriter, ScalarEvolution *SE,
Type *IntPtrTy) {
const SCEVAddRecExpr *AR = dyn_cast<SCEVAddRecExpr>(SE->getSCEV(IndVar));
assert(AR && AR->getLoop() == L && AR->isAffine() && "bad loop counter");
const SCEV *IVInit = AR->getStart();
@ -1456,7 +1457,8 @@ static Value *genLoopLimit(PHINode *IndVar, const SCEV *IVCount, Loop *L,
// We could handle pointer IVs other than i8*, but we need to compensate for
// gep index scaling. See canExpandBackedgeTakenCount comments.
assert(SE->getSizeOfExpr(
cast<PointerType>(GEPBase->getType())->getElementType())->isOne()
cast<PointerType>(GEPBase->getType())->getElementType(),
IntPtrTy)->isOne()
&& "unit stride pointer IV must be i8*");
IRBuilder<> Builder(L->getLoopPreheader()->getTerminator());
@ -1555,7 +1557,9 @@ LinearFunctionTestReplace(Loop *L,
CmpIndVar = IndVar;
}
Value *ExitCnt = genLoopLimit(IndVar, IVCount, L, Rewriter, SE);
Type *IntPtrTy = TD ? TD->getIntPtrType(IndVar->getType()) :
IntegerType::getInt64Ty(IndVar->getContext());
Value *ExitCnt = genLoopLimit(IndVar, IVCount, L, Rewriter, SE, IntPtrTy);
assert(ExitCnt->getType()->isPointerTy() == IndVar->getType()->isPointerTy()
&& "genLoopLimit missed a cast");