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Fixed a LowerCallTo and LowerArguments bug. They were introducing illegal

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VBIT_VECTOR nodes. There were some confusion about the semantics of
getPackedTypeBreakdown(). e.g. for <4 x f32> it returns 1 and v4f32, not 4,
and f32.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28352 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-05-17 18:16:39 +00:00
parent e9b3da17cd
commit 6c43f35d74
1 changed files with 27 additions and 12 deletions
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39
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@ -2455,20 +2455,25 @@ TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
// Figure out if there is a Packed type corresponding to this Vector
// type. If so, convert to the packed type.
bool Supported = false;
MVT::ValueType TVT = MVT::getVectorType(getValueType(EltTy), NumElems);
if (TVT != MVT::Other && isTypeLegal(TVT)) {
if (TVT != MVT::Other) {
SDOperand N = SDOperand(Result, i++);
// Handle copies from generic vectors to registers.
MVT::ValueType PTyElementVT, PTyLegalElementVT;
unsigned NE = getPackedTypeBreakdown(PTy, PTyElementVT,
PTyLegalElementVT);
// Insert a VBIT_CONVERT of the FORMAL_ARGUMENTS to a
// "N x PTyElementVT" MVT::Vector type.
N = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, N,
DAG.getConstant(NE, MVT::i32),
DAG.getValueType(PTyElementVT));
Ops.push_back(N);
} else {
// FIXME: handle NE > 1 cases.
if (NE == 1) {
N = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, N,
DAG.getConstant(NumElems, MVT::i32),
DAG.getValueType(getValueType(EltTy)));
Ops.push_back(N);
Supported = true;
}
}
if (!Supported) {
assert(0 && "Don't support illegal by-val vector arguments yet!");
abort();
}
@ -2546,15 +2551,25 @@ TargetLowering::LowerCallTo(SDOperand Chain, const Type *RetTy, bool isVarArg,
// Figure out if there is a Packed type corresponding to this Vector
// type. If so, convert to the packed type.
bool Supported = false;
MVT::ValueType TVT = MVT::getVectorType(getValueType(EltTy), NumElems);
if (TVT != MVT::Other && isTypeLegal(TVT)) {
if (TVT != MVT::Other) {
// Handle copies from generic vectors to registers.
MVT::ValueType PTyElementVT, PTyLegalElementVT;
unsigned NE = getPackedTypeBreakdown(PTy, PTyElementVT,
PTyLegalElementVT);
// Insert a VBIT_CONVERT of the MVT::Vector type to the packed type.
Ops.push_back(DAG.getNode(ISD::VBIT_CONVERT, TVT, Op));
} else {
// FIXME: handle NE > 1 cases.
if (NE == 1) {
// Insert a VBIT_CONVERT of the MVT::Vector type to the packed type.
Op = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Op,
DAG.getConstant(NumElems, MVT::i32),
DAG.getValueType(getValueType(EltTy)));
Ops.push_back(Op);
Supported = true;
}
}
if (!Supported) {
assert(0 && "Don't support illegal by-val vector call args yet!");
abort();
}