6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-04-03 18:32:50 +00:00
Code Issues Projects Releases Wiki Activity

Infer element types for shuffle masks

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27456 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-04-06 20:36:51 +00:00
parent 52793e2c41
commit 91ded08224
1 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
utils/TableGen/DAGISelEmitter.cpp
View File

@ -672,6 +672,26 @@ bool TreePatternNode::ApplyTypeConstraints(TreePattern &TP, bool NotRegisters) {
// must have void types.
if (NI.getNumResults() == 0)
MadeChange |= UpdateNodeType(MVT::isVoid, TP);
// If this is a vector_shuffle operation, apply types to the build_vector
// operation. The types of the integers don't matter, but this ensures they
// won't get checked.
if (getOperator()->getName() == "vector_shuffle" &&
getChild(2)->getOperator()->getName() == "build_vector") {
TreePatternNode *BV = getChild(2);
const std::vector<MVT::ValueType> &LegalVTs
= ISE.getTargetInfo().getLegalValueTypes();
MVT::ValueType LegalIntVT = MVT::Other;
for (unsigned i = 0, e = LegalVTs.size(); i != e; ++i)
if (MVT::isInteger(LegalVTs[i]) && !MVT::isVector(LegalVTs[i])) {
LegalIntVT = LegalVTs[i];
break;
}
assert(LegalIntVT != MVT::Other && "No legal integer VT?");
for (unsigned i = 0, e = BV->getNumChildren(); i != e; ++i)
MadeChange |= BV->getChild(i)->UpdateNodeType(LegalIntVT, TP);
}
return MadeChange;
} else if (getOperator()->isSubClassOf("Instruction")) {
const DAGInstruction &Inst = ISE.getInstruction(getOperator());