Changes in directory llvm/lib/CodeGen/SelectionDAG:
SelectionDAGISel.cpp updated: 1.117 -> 1.118
---
Log message:
Lower ConstantAggregateZero into zeros
---
Diffs of the changes: (+20 -7)
SelectionDAGISel.cpp | 27 ++++++++++++++++++++-------
1 files changed, 20 insertions(+), 7 deletions(-)
Index: llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1.117
llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1.118
--- llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1.117 Fri Dec 16
16:45:28 2005
+++ llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp Tue Dec 20 20:43:26 2005
@@ -306,16 +306,29 @@
// Constant or ConstantFP node onto the ops list for each element of
// the packed constant.
std::vector<SDOperand> Ops;
- for (unsigned i = 0; i < NumElements; ++i) {
- const Constant *CEl = C->getOperand(i);
+ if (ConstantPacked *CP = dyn_cast<ConstantPacked>(C)) {
+ if (MVT::isFloatingPoint(PVT)) {
+ for (unsigned i = 0; i != NumElements; ++i) {
+ const ConstantFP *El = cast<ConstantFP>(CP->getOperand(i));
+ Ops.push_back(DAG.getConstantFP(El->getValue(), PVT));
+ }
+ } else {
+ for (unsigned i = 0; i != NumElements; ++i) {
+ const ConstantIntegral *El =
+ cast<ConstantIntegral>(CP->getOperand(i));
+ Ops.push_back(DAG.getConstant(El->getRawValue(), PVT));
+ }
+ }
+ } else {
+ assert(isa<ConstantAggregateZero>(C) && "Unknown packed constant!");
+ SDOperand Op;
if (MVT::isFloatingPoint(PVT))
- Ops.push_back(DAG.getConstantFP(cast<ConstantFP>(CEl)->getValue(),
- PVT));
+ Op = DAG.getConstantFP(0, PVT);
else
- Ops.push_back(
- DAG.getConstant(cast<ConstantIntegral>(CEl)->getRawValue(),
- PVT));
+ Op = DAG.getConstant(0, PVT);
+ Ops.assign(NumElements, Op);
}
+
// Handle the case where we have a 1-element vector, in which
// case we want to immediately turn it into a scalar constant.
if (Ops.size() == 1) {
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