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Split condition does not have to be ICmpInst in all cases.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41822 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2007-09-11 00:12:56 +00:00
parent ba32a5f3cc
commit 4f12c5f615
1 changed files with 8 additions and 5 deletions
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13
lib/Transforms/Scalar/LoopIndexSplit.cpp
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@ -64,8 +64,8 @@ namespace {
// Induction variable's range is split at this value.
Value *SplitValue;
// This compare instruction compares IndVar against SplitValue.
ICmpInst *SplitCondition;
// This instruction compares IndVar against SplitValue.
Instruction *SplitCondition;
// True if after loop index split, first loop will execute split condition's
// true branch.
@ -221,7 +221,8 @@ bool LoopIndexSplit::runOnLoop(Loop *IncomingLoop, LPPassManager &LPM_Ref) {
for (SmallVector<SplitInfo, 4>::iterator SI = SplitData.begin(),
E = SplitData.end(); SI != E;) {
SplitInfo &SD = *SI;
if (SD.SplitCondition->getPredicate() == ICmpInst::ICMP_EQ) {
ICmpInst *CI = dyn_cast<ICmpInst>(SD.SplitCondition);
if (CI && CI->getPredicate() == ICmpInst::ICMP_EQ) {
Changed = processOneIterationLoop(SD);
if (Changed) {
++NumIndexSplit;
@ -790,7 +791,8 @@ bool LoopIndexSplit::safeSplitCondition(SplitInfo &SD) {
/// based on split value.
void LoopIndexSplit::calculateLoopBounds(SplitInfo &SD) {
ICmpInst::Predicate SP = SD.SplitCondition->getPredicate();
ICmpInst *SC = cast<ICmpInst>(SD.SplitCondition);
ICmpInst::Predicate SP = SC->getPredicate();
const Type *Ty = SD.SplitValue->getType();
bool Sign = ExitCondition->isSignedPredicate();
BasicBlock *Preheader = L->getLoopPreheader();
@ -1140,7 +1142,8 @@ bool LoopIndexSplit::splitLoop(SplitInfo &SD) {
ICmpInst *B_SplitCondition = cast<ICmpInst>(ValueMap[SD.SplitCondition]);
moveExitCondition(A_SplitCondBlock, A_ActiveBranch, A_ExitBlock, ExitCondition,
SD.SplitCondition, IndVar, IndVarIncrement, ALoop);
cast<ICmpInst>(SD.SplitCondition), IndVar, IndVarIncrement,
ALoop);
moveExitCondition(B_SplitCondBlock, B_ActiveBranch, B_ExitBlock, B_ExitCondition,
B_SplitCondition, B_IndVar, B_IndVarIncrement, BLoop);