Implement selection of inline asm memory operands
llvm-svn: 26348
diff --git a/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
index 78dbaa6..27e0afd 100644
--- a/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
@@ -83,6 +83,35 @@
/// represented as an indexed [r+r] operation.
bool SelectAddrIdxOnly(SDOperand N, SDOperand &Base, SDOperand &Index);
+ /// SelectInlineAsmMemoryOperand - Implement addressing mode selection for
+ /// inline asm expressions.
+ virtual bool SelectInlineAsmMemoryOperand(const SDOperand &Op,
+ char ConstraintCode,
+ std::vector<SDOperand> &OutOps,
+ SelectionDAG &DAG) {
+ SDOperand Op0, Op1;
+ switch (ConstraintCode) {
+ default: return true;
+ case 'm': // memory
+ if (!SelectAddrIdx(Op, Op0, Op1))
+ SelectAddrImm(Op, Op0, Op1);
+ break;
+ case 'o': // offsetable
+ if (!SelectAddrImm(Op, Op0, Op1)) {
+ Select(Op0, Op); // r+0.
+ Op1 = getI32Imm(0);
+ }
+ break;
+ case 'v': // not offsetable
+ SelectAddrIdxOnly(Op, Op0, Op1);
+ break;
+ }
+
+ OutOps.push_back(Op0);
+ OutOps.push_back(Op1);
+ return false;
+ }
+
SDOperand BuildSDIVSequence(SDNode *N);
SDOperand BuildUDIVSequence(SDNode *N);