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Broadcast implementation as InsertElement+Shuffle and related improvements

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This commit is contained in:
Dmitry Babokin
2013-04-10 02:18:24 +04:00
parent 603abf70dc
commit 5898532605
6 changed files with 153 additions and 56 deletions
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13
opt.cpp
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@@ -1058,10 +1058,10 @@ lCheckForActualPointer(llvm::Value *v) {
*/
static llvm::Value *
lGetBasePointer(llvm::Value *v) {
llvm::InsertElementInst *ie = llvm::dyn_cast<llvm::InsertElementInst>(v);
if (ie != NULL) {
if (llvm::isa<llvm::InsertElementInst>(v) ||
llvm::isa<llvm::ShuffleVectorInst>(v)) {
llvm::Value *elements[ISPC_MAX_NVEC];
LLVMFlattenInsertChain(ie, g->target->getVectorWidth(), elements);
LLVMFlattenInsertChain(v, g->target->getVectorWidth(), elements);
// Make sure none of the elements is undefined.
// TODO: it's probably ok to allow undefined elements and return
@@ -1080,9 +1080,12 @@ lGetBasePointer(llvm::Value *v) {
}
// This case comes up with global/static arrays
llvm::ConstantVector *cv = llvm::dyn_cast<llvm::ConstantVector>(v);
if (cv != NULL)
if (llvm::ConstantVector *cv = llvm::dyn_cast<llvm::ConstantVector>(v)) {
return lCheckForActualPointer(cv->getSplatValue());
}
else if (llvm::ConstantDataVector *cdv = llvm::dyn_cast<llvm::ConstantDataVector>(v)) {
return lCheckForActualPointer(cdv->getSplatValue());
}
return NULL;
}