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Insert a VBIT_CONVERT between a FORMAL_ARGUMENT node and its vector uses

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(VAND, VADD, etc.). Legalizer will assert otherwise.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27991 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-04-27 08:29:42 +00:00
parent f9b458c88b
commit f7179bb56e
1 changed files with 16 additions and 3 deletions
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19
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@ -2372,7 +2372,7 @@ TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
// right now.
unsigned NumElems = cast<PackedType>(I->getType())->getNumElements();
const Type *EltTy = cast<PackedType>(I->getType())->getElementType();
// Figure out if there is a Packed type corresponding to this Vector
// type. If so, convert to the packed type.
MVT::ValueType TVT = MVT::getVectorType(getValueType(EltTy), NumElems);
@ -2441,7 +2441,7 @@ TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
// right now.
unsigned NumElems = cast<PackedType>(I->getType())->getNumElements();
const Type *EltTy = cast<PackedType>(I->getType())->getElementType();
// Figure out if there is a Packed type corresponding to this Vector
// type. If so, convert to the packed type.
MVT::ValueType TVT = MVT::getVectorType(getValueType(EltTy), NumElems);
@ -2987,7 +2987,20 @@ LowerArguments(BasicBlock *BB, SelectionDAGLowering &SDL,
AI != E; ++AI, ++a)
if (!AI->use_empty()) {
SDL.setValue(AI, Args[a]);
MVT::ValueType VT = TLI.getValueType(AI->getType());
if (VT == MVT::Vector) {
// Insert a VBIT_CONVERT between the FORMAL_ARGUMENT node and its uses.
// Or else legalizer will balk.
BasicBlock::iterator InsertPt = BB->begin();
Value *NewVal = new CastInst(AI, AI->getType(), AI->getName(), InsertPt);
for (Value::use_iterator UI = AI->use_begin(), E = AI->use_end();
UI != E; ++UI) {
Instruction *User = cast<Instruction>(*UI);
if (User != NewVal)
User->replaceUsesOfWith(AI, NewVal);
}
}
// If this argument is live outside of the entry block, insert a copy from
// whereever we got it to the vreg that other BB's will reference it as.
if (FuncInfo.ValueMap.count(AI)) {