Implement SHL_PARTS and SRL_PARTS
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23072 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
index 5e170de..9bbbc16 100644
--- a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
+++ b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
@@ -1184,6 +1184,44 @@
CurDAG->ReplaceAllUsesWith(N, Result);
return Result[Op.ResNo];
}
+ case ISD::SHL_PARTS: {
+ SDOperand HI = Select(N->getOperand(0));
+ SDOperand LO = Select(N->getOperand(1));
+ SDOperand SH = Select(N->getOperand(2));
+ SDOperand SH_LO_R = CurDAG->getTargetNode(PPC::SUBFIC, MVT::i32, SH,
+ getI32Imm(32));
+ SDOperand SH_LO_L = CurDAG->getTargetNode(PPC::ADDI, MVT::i32, SH,
+ getI32Imm((unsigned)-32));
+ SDOperand HI_SHL = CurDAG->getTargetNode(PPC::SLW, MVT::i32, HI, SH);
+ SDOperand HI_LOR = CurDAG->getTargetNode(PPC::SRW, MVT::i32, LO, SH_LO_R);
+ SDOperand HI_LOL = CurDAG->getTargetNode(PPC::SLW, MVT::i32, LO, SH_LO_L);
+ SDOperand HI_OR = CurDAG->getTargetNode(PPC::OR, MVT::i32, HI_SHL, HI_LOR);
+
+ std::vector<SDOperand> Result;
+ Result.push_back(CurDAG->getTargetNode(PPC::SLW, MVT::i32, LO, SH));
+ Result.push_back(CurDAG->getTargetNode(PPC::OR, MVT::i32, HI_OR, HI_LOL));
+ CurDAG->ReplaceAllUsesWith(N, Result);
+ return Result[Op.ResNo];
+ }
+ case ISD::SRL_PARTS: {
+ SDOperand HI = Select(N->getOperand(0));
+ SDOperand LO = Select(N->getOperand(1));
+ SDOperand SH = Select(N->getOperand(2));
+ SDOperand SH_HI_L = CurDAG->getTargetNode(PPC::SUBFIC, MVT::i32, SH,
+ getI32Imm(32));
+ SDOperand SH_HI_R = CurDAG->getTargetNode(PPC::ADDI, MVT::i32, SH,
+ getI32Imm((unsigned)-32));
+ SDOperand LO_SHR = CurDAG->getTargetNode(PPC::SRW, MVT::i32, LO, SH);
+ SDOperand LO_HIL = CurDAG->getTargetNode(PPC::SLW, MVT::i32, HI, SH_HI_L);
+ SDOperand LO_HIR = CurDAG->getTargetNode(PPC::SRW, MVT::i32, HI, SH_HI_R);
+ SDOperand LO_OR = CurDAG->getTargetNode(PPC::OR, MVT::i32, LO_SHR, LO_HIL);
+
+ std::vector<SDOperand> Result;
+ Result.push_back(CurDAG->getTargetNode(PPC::OR, MVT::i32, LO_OR, LO_HIR));
+ Result.push_back(CurDAG->getTargetNode(PPC::SRW, MVT::i32, HI, SH));
+ CurDAG->ReplaceAllUsesWith(N, Result);
+ return Result[Op.ResNo];
+ }
case ISD::LOAD:
case ISD::EXTLOAD: