diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/CellSPU/SPUISelDAGToDAG.cpp | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/lib/Target/CellSPU/SPUISelDAGToDAG.cpp b/lib/Target/CellSPU/SPUISelDAGToDAG.cpp index 8b418a08cb..1c5e739ef8 100644 --- a/lib/Target/CellSPU/SPUISelDAGToDAG.cpp +++ b/lib/Target/CellSPU/SPUISelDAGToDAG.cpp @@ -322,9 +322,6 @@ namespace { /// target-specific node if it hasn't already been changed. SDNode *Select(SDValue Op); - //! Emit the instruction sequence for i128 sext - SDNode *SelectSEXTi128(SDValue &Op, EVT OpVT); - //! Emit the instruction sequence for i64 shl SDNode *SelectSHLi64(SDValue &Op, EVT OpVT); @@ -836,10 +833,6 @@ SPUDAGToDAGISel::Select(SDValue Op) { } } } - } else if (Opc == ISD::SIGN_EXTEND) { - if (OpVT == MVT::i128) { - return SelectSEXTi128(Op, OpVT); - } } else if (Opc == ISD::SHL) { if (OpVT == MVT::i64) { return SelectSHLi64(Op, OpVT); @@ -964,58 +957,6 @@ SPUDAGToDAGISel::Select(SDValue Op) { } /*! - * Emit the instruction sequence for i64 -> i128 sign extend. The basic - * algorithm is to duplicate the sign bit using rotmai to generate at - * least one byte full of sign bits. Then propagate the "sign-byte" into - * theleftmost words and the i64 into the rightmost words using shufb. - * - * @param Op The sext operand - * @param OpVT The type to extend to - * @return The SDNode with the entire instruction sequence - */ -SDNode * -SPUDAGToDAGISel::SelectSEXTi128(SDValue &Op, EVT OpVT) -{ - DebugLoc dl = Op.getDebugLoc(); - - // Type to extend from - SDValue Op0 = Op.getOperand(0); - EVT Op0VT = Op0.getValueType(); - - assert((OpVT == MVT::i128 && Op0VT == MVT::i64) && - "LowerSIGN_EXTEND: input and/or output operand have wrong size"); - - // Create shuffle mask - unsigned mask1 = 0x10101010; // byte 0 - 3 and 4 - 7 - unsigned mask2 = 0x01020304; // byte 8 - 11 - unsigned mask3 = 0x05060708; // byte 12 - 15 - SDValue shufMask = CurDAG->getNode(ISD::BUILD_VECTOR, dl, MVT::v4i32, - CurDAG->getConstant(mask1, MVT::i32), - CurDAG->getConstant(mask1, MVT::i32), - CurDAG->getConstant(mask2, MVT::i32), - CurDAG->getConstant(mask3, MVT::i32)); - SDNode *shufMaskLoad = emitBuildVector(shufMask); - - // Word wise arithmetic right shift to generate at least one byte - // that contains sign bits. - SDNode *PromoteScalar = SelectCode(CurDAG->getNode(SPUISD::PREFSLOT2VEC, dl, - MVT::v2i64, Op0, Op0)); - SDNode *sraVal = SelectCode(CurDAG->getNode(ISD::SRA, dl, MVT::v2i64, - SDValue(PromoteScalar, 0), - CurDAG->getConstant(31, MVT::i32))); - - // Shuffle bytes - Copy the sign bits into the upper 64 bits - // and the input value into the lower 64 bits. - SDNode *extShuffle = SelectCode(CurDAG->getNode(SPUISD::SHUFB, dl, - MVT::v2i64, Op0, - SDValue(sraVal, 0), - SDValue(shufMaskLoad, 0))); - - return SelectCode(CurDAG->getNode(ISD::BIT_CONVERT, dl, MVT::i128, - SDValue(extShuffle, 0))); -} - -/*! * Emit the instruction sequence for i64 left shifts. The basic algorithm * is to fill the bottom two word slots with zeros so that zeros are shifted * in as the entire quadword is shifted left. |