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Remove unused parameter. Also use the AttributeSet query methods instead of the Attribute query methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172852 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -86,8 +86,7 @@ ISD::CondCode getICmpCondCode(ICmpInst::Predicate Pred);
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/// between it and the return.
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///
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/// This function only tests target-independent requirements.
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bool isInTailCallPosition(ImmutableCallSite CS, Attribute CalleeRetAttr,
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const TargetLowering &TLI);
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bool isInTailCallPosition(ImmutableCallSite CS, const TargetLowering &TLI);
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} // End llvm namespace
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@ -265,8 +265,7 @@ static const Value *getNoopInput(const Value *V, const TargetLowering &TLI) {
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/// between it and the return.
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///
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/// This function only tests target-independent requirements.
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bool llvm::isInTailCallPosition(ImmutableCallSite CS, Attribute CalleeRetAttr,
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const TargetLowering &TLI) {
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bool llvm::isInTailCallPosition(ImmutableCallSite CS,const TargetLowering &TLI){
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const Instruction *I = CS.getInstruction();
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const BasicBlock *ExitBB = I->getParent();
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const TerminatorInst *Term = ExitBB->getTerminator();
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@ -312,14 +311,16 @@ bool llvm::isInTailCallPosition(ImmutableCallSite CS, Attribute CalleeRetAttr,
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// Conservatively require the attributes of the call to match those of
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// the return. Ignore noalias because it doesn't affect the call sequence.
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const Function *F = ExitBB->getParent();
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Attribute CallerRetAttr = F->getAttributes().getRetAttributes();
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if (AttrBuilder(CalleeRetAttr).removeAttribute(Attribute::NoAlias) !=
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AttrBuilder(CallerRetAttr).removeAttribute(Attribute::NoAlias))
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AttributeSet CallerAttrs = F->getAttributes();
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if (AttrBuilder(CallerAttrs, AttributeSet::ReturnIndex).
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removeAttribute(Attribute::NoAlias) !=
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AttrBuilder(CallerAttrs, AttributeSet::ReturnIndex).
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removeAttribute(Attribute::NoAlias))
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return false;
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// It's not safe to eliminate the sign / zero extension of the return value.
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if (CallerRetAttr.hasAttribute(Attribute::ZExt) ||
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CallerRetAttr.hasAttribute(Attribute::SExt))
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if (CallerAttrs.hasAttribute(AttributeSet::ReturnIndex, Attribute::ZExt) ||
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CallerAttrs.hasAttribute(AttributeSet::ReturnIndex, Attribute::SExt))
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return false;
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// Otherwise, make sure the unmodified return value of I is the return value.
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@ -5277,8 +5277,7 @@ void SelectionDAGBuilder::LowerCallTo(ImmutableCallSite CS, SDValue Callee,
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// Check if target-independent constraints permit a tail call here.
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// Target-dependent constraints are checked within TLI.LowerCallTo.
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if (isTailCall &&
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!isInTailCallPosition(CS, CS.getAttributes().getRetAttributes(), TLI))
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if (isTailCall && !isInTailCallPosition(CS, TLI))
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isTailCall = false;
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TargetLowering::
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