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Do not change the size of function arguments. PR 1489.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37496 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -3993,7 +3993,15 @@ TargetLowering::LowerCallTo(SDOperand Chain, const Type *RetTy,
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Op = DAG.getNode(ExtOp, getTypeToTransformTo(VT), Op);
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} else {
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assert(MVT::isFloatingPoint(VT) && "Not int or FP?");
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Op = DAG.getNode(ISD::FP_EXTEND, getTypeToTransformTo(VT), Op);
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// A true promotion would change the size of the argument.
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// Instead, pretend this is an int. If FP objects are not
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// passed the same as ints, the original type should be Legal
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// and we should not get here.
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Op = DAG.getNode(ISD::BIT_CONVERT,
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VT==MVT::f32 ? MVT::i32 :
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(VT==MVT::f64 ? MVT::i64 :
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MVT::Other),
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Op);
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}
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Ops.push_back(Op);
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Ops.push_back(DAG.getConstant(Flags, MVT::i32));
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