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replace 'break's with 'return 0' in visitCallInst code for objectsize, since there is no need to fallback to visitCallSite.
This gives a 0.9% in a test case git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156069 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -247,7 +247,7 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) {
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default: break;
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case Intrinsic::objectsize: {
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// We need target data for just about everything so depend on it.
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if (!TD) break;
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if (!TD) return 0;
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Type *ReturnTy = CI.getType();
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uint64_t DontKnow = II->getArgOperand(1) == Builder->getTrue() ? 0 : -1ULL;
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@ -260,7 +260,7 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) {
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// Try to look through constant GEPs.
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if (GEPOperator *GEP = dyn_cast<GEPOperator>(Op1)) {
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if (!GEP->hasAllConstantIndices()) break;
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if (!GEP->hasAllConstantIndices()) return 0;
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// Get the current byte offset into the thing. Use the original
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// operand in case we're looking through a bitcast.
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@ -274,7 +274,7 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) {
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// Make sure we're not a constant offset from an external
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// global.
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if (GlobalVariable *GV = dyn_cast<GlobalVariable>(Op1))
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if (!GV->hasDefinitiveInitializer()) break;
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if (!GV->hasDefinitiveInitializer()) return 0;
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}
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// If we've stripped down to a single global variable that we
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@ -294,7 +294,7 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) {
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Size = TD->getTypeAllocSize(AI->getAllocatedType());
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if (AI->isArrayAllocation()) {
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const ConstantInt *C = dyn_cast<ConstantInt>(AI->getArraySize());
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if (!C) break;
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if (!C) return 0;
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Size *= C->getZExtValue();
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}
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}
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@ -310,7 +310,7 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) {
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// Do not return "I don't know" here. Later optimization passes could
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// make it possible to evaluate objectsize to a constant.
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if (Size == -1ULL)
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break;
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return 0;
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if (Size < Offset) {
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// Out of bound reference? Negative index normalized to large
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