Changes in directory llvm/utils/TableGen:
DAGISelEmitter.cpp updated: 1.182 -> 1.183
---
Log message:
Allow result node to be a simple leaf node. This enable bitconvert patterns
like this:
def : Pat<(v4i32 (bitconvert (v4f32 VR128:$src))), (v4i32 VR128:$src)>;
---
Diffs of the changes: (+9 -4)
DAGISelEmitter.cpp | 13 +++++++++----
1 files changed, 9 insertions(+), 4 deletions(-)
Index: llvm/utils/TableGen/DAGISelEmitter.cpp
diff -u llvm/utils/TableGen/DAGISelEmitter.cpp:1.182
llvm/utils/TableGen/DAGISelEmitter.cpp:1.183
--- llvm/utils/TableGen/DAGISelEmitter.cpp:1.182 Tue Mar 21 14:44:17 2006
+++ llvm/utils/TableGen/DAGISelEmitter.cpp Wed Mar 22 20:35:32 2006
@@ -1459,8 +1459,10 @@
}
ResultNodeOperands.push_back(OpNode);
}
- DstPattern = new TreePatternNode(Result->getOnlyTree()->getOperator(),
- ResultNodeOperands);
+ DstPattern = Result->getOnlyTree();
+ if (!DstPattern->isLeaf())
+ DstPattern = new TreePatternNode(DstPattern->getOperator(),
+ ResultNodeOperands);
DstPattern->setTypes(Result->getOnlyTree()->getExtTypes());
TreePattern Temp(Result->getRecord(), DstPattern, false, *this);
Temp.InferAllTypes();
@@ -2191,7 +2193,6 @@
EmitResultCode(TreePatternNode *N, bool LikeLeaf = false, bool isRoot =
false) {
// This is something selected from the pattern we matched.
if (!N->getName().empty()) {
- assert(!isRoot && "Root of pattern cannot be a leaf!");
std::string &Val = VariableMap[N->getName()];
assert(!Val.empty() &&
"Variable referenced but not defined and not caught earlier!");
@@ -2276,13 +2277,17 @@
emitCode("Tmp" + utostr(ResNo) + " = " + Val + ";");
else
emitCode("Select(Tmp" + utostr(ResNo) + ", " + Val + ");");
+
+ if (isRoot && N->isLeaf()) {
+ emitCode("Result = Tmp" + utostr(ResNo) + ";");
+ emitCode("return;");
+ }
}
// Add Tmp<ResNo> to VariableMap, so that we don't multiply select this
// value if used multiple times by this pattern result.
Val = "Tmp"+utostr(ResNo);
return std::make_pair(NumRes, ResNo);
}
-
if (N->isLeaf()) {
// If this is an explicit register reference, handle it.
if (DefInit *DI = dynamic_cast<DefInit*>(N->getLeafValue())) {
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