Changes in directory llvm/include/llvm/CodeGen:
SelectionDAG.h updated: 1.127 -> 1.128
---
Log message:
Move isCommutativeBinOp from SelectionDAG.cpp and DAGCombiner.cpp out. Make it
a static method of SelectionDAG.
---
Diffs of the changes: (+19 -0)
SelectionDAG.h | 19 +++++++++++++++++++
1 files changed, 19 insertions(+)
Index: llvm/include/llvm/CodeGen/SelectionDAG.h
diff -u llvm/include/llvm/CodeGen/SelectionDAG.h:1.127
llvm/include/llvm/CodeGen/SelectionDAG.h:1.128
--- llvm/include/llvm/CodeGen/SelectionDAG.h:1.127 Sun Aug 27 03:07:55 2006
+++ llvm/include/llvm/CodeGen/SelectionDAG.h Tue Aug 29 01:42:10 2006
@@ -388,6 +388,25 @@
/// of the SDNodes* in assigned order by reference.
unsigned AssignTopologicalOrder(std::vector<SDNode*> &TopOrder);
+ /// isCommutativeBinOp - Returns true if the opcode is a commutative binary
+ /// operation.
+ static bool isCommutativeBinOp(unsigned Opcode) {
+ switch (Opcode) {
+ case ISD::ADD:
+ case ISD::MUL:
+ case ISD::MULHU:
+ case ISD::MULHS:
+ case ISD::FADD:
+ case ISD::FMUL:
+ case ISD::AND:
+ case ISD::OR:
+ case ISD::XOR:
+ case ISD::ADDC:
+ case ISD::ADDE: return true;
+ default: return false;
+ }
+ }
+
void dump() const;
private:
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