Changes in directory llvm/utils/TableGen:
DAGISelEmitter.cpp updated: 1.158 -> 1.159
---
Log message:
If a pattern's root node is a constant, its size should be 3 rather than 2.
---
Diffs of the changes: (+4 -0)
DAGISelEmitter.cpp | 4 ++++
1 files changed, 4 insertions(+)
Index: llvm/utils/TableGen/DAGISelEmitter.cpp
diff -u llvm/utils/TableGen/DAGISelEmitter.cpp:1.158
llvm/utils/TableGen/DAGISelEmitter.cpp:1.159
--- llvm/utils/TableGen/DAGISelEmitter.cpp:1.158 Sun Jan 29 14:01:35 2006
+++ llvm/utils/TableGen/DAGISelEmitter.cpp Wed Feb 1 00:06:31 2006
@@ -1709,6 +1709,10 @@
P->getExtTypeNum(0) == MVT::Flag &&
"Not a valid pattern node to size!");
unsigned Size = 2; // The node itself.
+ // If the root node is a ConstantSDNode, increases its size.
+ // e.g. (set R32:$dst, 0).
+ if (P->isLeaf() && dynamic_cast<IntInit*>(P->getLeafValue()))
+ Size++;
// FIXME: This is a hack to statically increase the priority of patterns
// which maps a sub-dag to a complex pattern. e.g. favors LEA over ADD.
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