#include "llvm/Analysis/ConstantFolding.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Analysis/ValueTracking.h"
-#include "llvm/Analysis/VectorUtils.h"
#include "llvm/CodeGen/FastISel.h"
#include "llvm/CodeGen/FunctionLoweringInfo.h"
#include "llvm/CodeGen/GCMetadata.h"
SelectionDAGBuilder* SDB) {
assert(Ptr->getType()->isVectorTy() && "Unexpected pointer type");
- GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(Ptr);
- if (!GEP || GEP->getNumOperands() > 2)
+ GetElementPtrInst *Gep = dyn_cast<GetElementPtrInst>(Ptr);
+ if (!Gep || Gep->getNumOperands() > 2)
return false;
- Value *GEPPtrs = GEP->getPointerOperand();
- if (!(Ptr = getSplatValue(GEPPtrs)))
+ ShuffleVectorInst *ShuffleInst =
+ dyn_cast<ShuffleVectorInst>(Gep->getPointerOperand());
+ if (!ShuffleInst || !ShuffleInst->getMask()->isNullValue() ||
+ cast<Instruction>(ShuffleInst->getOperand(0))->getOpcode() !=
+ Instruction::InsertElement)
return false;
+ Ptr = cast<InsertElementInst>(ShuffleInst->getOperand(0))->getOperand(1);
+
SelectionDAG& DAG = SDB->DAG;
const TargetLowering &TLI = DAG.getTargetLoweringInfo();
// Check is the Ptr is inside current basic block
// If not, look for the shuffle instruction
if (SDB->findValue(Ptr))
Base = SDB->getValue(Ptr);
- else if (SDB->findValue(GEPPtrs)) {
- SDValue GEPPtrsVal = SDB->getValue(GEPPtrs);
- SDLoc sdl = GEPPtrsVal;
- EVT IdxVT = TLI.getVectorIdxTy(DAG.getDataLayout());
- Base = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, sdl,
- GEPPtrsVal.getValueType().getScalarType(), GEPPtrsVal,
- DAG.getConstant(0, sdl, IdxVT));
+ else if (SDB->findValue(ShuffleInst)) {
+ SDValue ShuffleNode = SDB->getValue(ShuffleInst);
+ SDLoc sdl = ShuffleNode;
+ Base = DAG.getNode(
+ ISD::EXTRACT_VECTOR_ELT, sdl,
+ ShuffleNode.getValueType().getScalarType(), ShuffleNode,
+ DAG.getConstant(0, sdl, TLI.getVectorIdxTy(DAG.getDataLayout())));
SDB->setValue(Ptr, Base);
}
else
return false;
- Value *IndexVal = GEP->getOperand(1);
+ Value *IndexVal = Gep->getOperand(1);
if (SDB->findValue(IndexVal)) {
Index = SDB->getValue(IndexVal);