Significantly improve handling of vectors that are live across basic blocks,
handling cases where the vector elements need promotion, expansion, and when
the vector type itself needs to be decimated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27278 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 29d7a5e..93b0d9b 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -4497,9 +4497,6 @@
/// type for the result.
SDOperand SelectionDAGLegalize::PackVectorOp(SDOperand Op,
MVT::ValueType NewVT) {
- // FIXME: THIS IS A TEMPORARY HACK
- if (Op.getValueType() == NewVT) return Op;
-
assert(Op.getValueType() == MVT::Vector && "Bad PackVectorOp invocation!");
SDNode *Node = Op.Val;
@@ -4536,7 +4533,7 @@
break;
}
case ISD::VBUILD_VECTOR:
- if (!MVT::isVector(NewVT)) {
+ if (Node->getOperand(0).getValueType() == NewVT) {
// Returning a scalar?
Result = Node->getOperand(0);
} else {