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Move isLoopInvariant to the Loop class
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13051 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -176,14 +176,6 @@ namespace {
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return CurAST->getAliasSetForPointer(V, 0).isMod();
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}
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/// isLoopInvariant - Return true if the specified value is loop invariant
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///
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inline bool isLoopInvariant(Value *V) {
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if (Instruction *I = dyn_cast<Instruction>(V))
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return !CurLoop->contains(I->getParent());
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return true; // All non-instructions are loop invariant
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}
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bool canSinkOrHoistInst(Instruction &I);
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bool isLoopInvariantInst(Instruction &I);
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bool isNotUsedInLoop(Instruction &I);
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@ -421,7 +413,7 @@ bool LICM::isNotUsedInLoop(Instruction &I) {
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bool LICM::isLoopInvariantInst(Instruction &I) {
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// The instruction is loop invariant if all of its operands are loop-invariant
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for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i)
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if (!isLoopInvariant(I.getOperand(i)))
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if (!CurLoop->isLoopInvariant(I.getOperand(i)))
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return false;
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// If we got this far, the instruction is loop invariant!
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@ -714,7 +706,7 @@ void LICM::findPromotableValuesInLoop(
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// set, if the pointer is loop invariant, if if we are not eliminating any
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// volatile loads or stores.
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if (!AS.isForwardingAliasSet() && AS.isMod() && AS.isMustAlias() &&
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!AS.isVolatile() && isLoopInvariant(AS.begin()->first)) {
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!AS.isVolatile() && CurLoop->isLoopInvariant(AS.begin()->first)) {
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assert(AS.begin() != AS.end() &&
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"Must alias set should have at least one pointer element in it!");
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Value *V = AS.begin()->first;
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