Changes in directory llvm/lib/Target/PowerPC:
PPCISelDAGToDAG.cpp updated: 1.128 -> 1.129
---
Log message:
Teach the selector to fold lo(g) into load instruction immediate fields
---
Diffs of the changes: (+8 -0)
PPCISelDAGToDAG.cpp | 8 ++++++++
1 files changed, 8 insertions(+)
Index: llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
diff -u llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp:1.128
llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp:1.129
--- llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp:1.128 Thu Nov 17 01:30:41 2005
+++ llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp Thu Nov 17 12:02:16 2005
@@ -413,6 +413,14 @@
Op2 = Select(Addr.getOperand(0));
}
return false;
+ } else if (Addr.getOperand(1).getOpcode() == PPCISD::Lo) {
+ // Match LOAD (ADD (X, Lo(G))).
+
assert(!cast<ConstantSDNode>(Addr.getOperand(1).getOperand(1))->getValue()
+ && "Cannot handle constant offsets yet!");
+ Op1 = Addr.getOperand(1).getOperand(0); // The global address.
+ assert(Op1.getOpcode() == ISD::TargetGlobalAddress);
+ Op2 = Select(Addr.getOperand(0));
+ return false; // [&g+r]
} else {
Op1 = Select(Addr.getOperand(0));
Op2 = Select(Addr.getOperand(1));
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