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Fix pr11194. When promoting and splitting integers we need to use

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ZExtPromotedInteger and SExtPromotedInteger based on the operation we legalize.

SetCC return type needs to be legalized via PromoteTargetBoolean.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142660 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2011-10-21 17:35:19 +00:00
parent 7926db8268
commit a054bcb4cf
2 changed files with 31 additions and 3 deletions
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15
lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
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@@ -787,7 +787,17 @@ void DAGTypeLegalizer::SplitVecRes_UnaryOp(SDNode *N, SDValue &Lo,
break; break;
} }
case TargetLowering::TypePromoteInteger: { case TargetLowering::TypePromoteInteger: {
SDValue InOp = GetPromotedInteger(N->getOperand(0)); SDValue InOp;
if (N->getOpcode() == ISD::SIGN_EXTEND ||
N->getOpcode() == ISD::SINT_TO_FP) {
InOp = SExtPromotedInteger(N->getOperand(0));
} else if (
N->getOpcode() == ISD::ZERO_EXTEND ||
N->getOpcode() == ISD::UINT_TO_FP) {
InOp = ZExtPromotedInteger(N->getOperand(0));
} else {
InOp = GetPromotedInteger(N->getOperand(0));
}
EVT InNVT = EVT::getVectorVT(*DAG.getContext(), EVT InNVT = EVT::getVectorVT(*DAG.getContext(),
InOp.getValueType().getVectorElementType(), InOp.getValueType().getVectorElementType(),
LoVT.getVectorNumElements()); LoVT.getVectorNumElements());
@@ -2189,8 +2199,7 @@ SDValue DAGTypeLegalizer::WidenVecOp_SETCC(SDNode *N) {
SDValue CC = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, SDValue CC = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl,
ResVT, WideSETCC, DAG.getIntPtrConstant(0)); ResVT, WideSETCC, DAG.getIntPtrConstant(0));
// Convert the result mask to the correct kind. return PromoteTargetBoolean(CC, N->getValueType(0));
return DAG.getAnyExtOrTrunc(CC, dl, N->getValueType(0));
} }

19
test/CodeGen/X86/2011-20-21-zext-ui2fp.ll Normal file
View File

@@ -0,0 +1,19 @@
; RUN: llc < %s -march=x86-64 -mcpu=corei7 | FileCheck %s
target triple = "x86_64-unknown-linux-gnu"
; Check that the booleans are converted using zext and not via sext.
; 0x1 means that we only look at the first bit.
;CHECK: 0x1
;CHECK: ui_to_fp_conv
;CHECK: ret
define void @ui_to_fp_conv(<8 x float> * nocapture %aFOO, <8 x float>* nocapture %RET) nounwind {
allocas:
%bincmp = fcmp olt <8 x float> <float 1.000000e+00, float 1.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00> , <float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00>
%bool2float = uitofp <8 x i1> %bincmp to <8 x float>
store <8 x float> %bool2float, <8 x float>* %RET, align 4
ret void
}