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[CodeGen] Further simplify returned call operand logic. NFC.

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As Pete points out in r290905, CallSite lets us avoid duplicating this!

llvm-svn: 290909
This commit is contained in:
Ahmed Bougacha 2017-01-03 21:42:43 +00:00
parent a2f7ccec83
commit af2642b0e5
1 changed files with 2 additions and 8 deletions
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10
lib/CodeGen/Analysis.cpp
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@ -272,14 +272,8 @@ static const Value *getNoopInput(const Value *V,
TLI.allowTruncateForTailCall(Op->getType(), I->getType())) {
DataBits = std::min(DataBits, I->getType()->getPrimitiveSizeInBits());
NoopInput = Op;
} else if (auto *CI = dyn_cast<CallInst>(I)) {
// Look through call operands.
Value *ReturnedOp = CI->getReturnedArgOperand();
if (ReturnedOp && isNoopBitcast(ReturnedOp->getType(), I->getType(), TLI))
NoopInput = ReturnedOp;
} else if (auto *II = dyn_cast<InvokeInst>(I)) {
// Look through invoke operands.
Value *ReturnedOp = II->getReturnedArgOperand();
} else if (auto CS = ImmutableCallSite(I)) {
const Value *ReturnedOp = CS.getReturnedArgOperand();
if (ReturnedOp && isNoopBitcast(ReturnedOp->getType(), I->getType(), TLI))
NoopInput = ReturnedOp;
} else if (const InsertValueInst *IVI = dyn_cast<InsertValueInst>(V)) {