diff options
Diffstat (limited to 'contrib/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp | 75 |
1 files changed, 66 insertions, 9 deletions
diff --git a/contrib/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp b/contrib/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp index 87d1522..6d9b188 100644 --- a/contrib/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp +++ b/contrib/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp @@ -1673,9 +1673,61 @@ SDValue ARMDAGToDAGISel::GetVLDSTAlign(SDValue Align, unsigned NumVecs, return CurDAG->getTargetConstant(Alignment, MVT::i32); } +static bool isVLDfixed(unsigned Opc) +{ + switch (Opc) { + default: return false; + case ARM::VLD1d8wb_fixed : return true; + case ARM::VLD1d16wb_fixed : return true; + case ARM::VLD1d64Qwb_fixed : return true; + case ARM::VLD1d32wb_fixed : return true; + case ARM::VLD1d64wb_fixed : return true; + case ARM::VLD1d64TPseudoWB_fixed : return true; + case ARM::VLD1d64QPseudoWB_fixed : return true; + case ARM::VLD1q8wb_fixed : return true; + case ARM::VLD1q16wb_fixed : return true; + case ARM::VLD1q32wb_fixed : return true; + case ARM::VLD1q64wb_fixed : return true; + case ARM::VLD2d8wb_fixed : return true; + case ARM::VLD2d16wb_fixed : return true; + case ARM::VLD2d32wb_fixed : return true; + case ARM::VLD2q8PseudoWB_fixed : return true; + case ARM::VLD2q16PseudoWB_fixed : return true; + case ARM::VLD2q32PseudoWB_fixed : return true; + case ARM::VLD2DUPd8wb_fixed : return true; + case ARM::VLD2DUPd16wb_fixed : return true; + case ARM::VLD2DUPd32wb_fixed : return true; + } +} + +static bool isVSTfixed(unsigned Opc) +{ + switch (Opc) { + default: return false; + case ARM::VST1d8wb_fixed : return true; + case ARM::VST1d16wb_fixed : return true; + case ARM::VST1d32wb_fixed : return true; + case ARM::VST1d64wb_fixed : return true; + case ARM::VST1q8wb_fixed : return true; + case ARM::VST1q16wb_fixed : return true; + case ARM::VST1q32wb_fixed : return true; + case ARM::VST1q64wb_fixed : return true; + case ARM::VST1d64TPseudoWB_fixed : return true; + case ARM::VST1d64QPseudoWB_fixed : return true; + case ARM::VST2d8wb_fixed : return true; + case ARM::VST2d16wb_fixed : return true; + case ARM::VST2d32wb_fixed : return true; + case ARM::VST2q8PseudoWB_fixed : return true; + case ARM::VST2q16PseudoWB_fixed : return true; + case ARM::VST2q32PseudoWB_fixed : return true; + } +} + // Get the register stride update opcode of a VLD/VST instruction that // is otherwise equivalent to the given fixed stride updating instruction. static unsigned getVLDSTRegisterUpdateOpcode(unsigned Opc) { + assert((isVLDfixed(Opc) || isVSTfixed(Opc)) + && "Incorrect fixed stride updating instruction."); switch (Opc) { default: break; case ARM::VLD1d8wb_fixed: return ARM::VLD1d8wb_register; @@ -1686,6 +1738,10 @@ static unsigned getVLDSTRegisterUpdateOpcode(unsigned Opc) { case ARM::VLD1q16wb_fixed: return ARM::VLD1q16wb_register; case ARM::VLD1q32wb_fixed: return ARM::VLD1q32wb_register; case ARM::VLD1q64wb_fixed: return ARM::VLD1q64wb_register; + case ARM::VLD1d64Twb_fixed: return ARM::VLD1d64Twb_register; + case ARM::VLD1d64Qwb_fixed: return ARM::VLD1d64Qwb_register; + case ARM::VLD1d64TPseudoWB_fixed: return ARM::VLD1d64TPseudoWB_register; + case ARM::VLD1d64QPseudoWB_fixed: return ARM::VLD1d64QPseudoWB_register; case ARM::VST1d8wb_fixed: return ARM::VST1d8wb_register; case ARM::VST1d16wb_fixed: return ARM::VST1d16wb_register; @@ -1785,11 +1841,11 @@ SDNode *ARMDAGToDAGISel::SelectVLD(SDNode *N, bool isUpdating, unsigned NumVecs, SDValue Inc = N->getOperand(AddrOpIdx + 1); // FIXME: VLD1/VLD2 fixed increment doesn't need Reg0. Remove the reg0 // case entirely when the rest are updated to that form, too. - if ((NumVecs == 1 || NumVecs == 2) && !isa<ConstantSDNode>(Inc.getNode())) + if ((NumVecs <= 2) && !isa<ConstantSDNode>(Inc.getNode())) Opc = getVLDSTRegisterUpdateOpcode(Opc); - // We use a VLD1 for v1i64 even if the pseudo says vld2/3/4, so + // FIXME: We use a VLD1 for v1i64 even if the pseudo says vld2/3/4, so // check for that explicitly too. Horribly hacky, but temporary. - if ((NumVecs != 1 && NumVecs != 2 && Opc != ARM::VLD1q64wb_fixed) || + if ((NumVecs > 2 && !isVLDfixed(Opc)) || !isa<ConstantSDNode>(Inc.getNode())) Ops.push_back(isa<ConstantSDNode>(Inc.getNode()) ? Reg0 : Inc); } @@ -1937,11 +1993,12 @@ SDNode *ARMDAGToDAGISel::SelectVST(SDNode *N, bool isUpdating, unsigned NumVecs, // case entirely when the rest are updated to that form, too. if (NumVecs <= 2 && !isa<ConstantSDNode>(Inc.getNode())) Opc = getVLDSTRegisterUpdateOpcode(Opc); - // We use a VST1 for v1i64 even if the pseudo says vld2/3/4, so + // FIXME: We use a VST1 for v1i64 even if the pseudo says vld2/3/4, so // check for that explicitly too. Horribly hacky, but temporary. - if ((NumVecs > 2 && Opc != ARM::VST1q64wb_fixed) || - !isa<ConstantSDNode>(Inc.getNode())) - Ops.push_back(isa<ConstantSDNode>(Inc.getNode()) ? Reg0 : Inc); + if (!isa<ConstantSDNode>(Inc.getNode())) + Ops.push_back(Inc); + else if (NumVecs > 2 && !isVSTfixed(Opc)) + Ops.push_back(Reg0); } Ops.push_back(SrcReg); Ops.push_back(Pred); @@ -2834,7 +2891,7 @@ SDNode *ARMDAGToDAGISel::Select(SDNode *N) { static const uint16_t DOpcodes[] = { ARM::VLD3d8Pseudo_UPD, ARM::VLD3d16Pseudo_UPD, ARM::VLD3d32Pseudo_UPD, - ARM::VLD1q64wb_fixed}; + ARM::VLD1d64TPseudoWB_fixed}; static const uint16_t QOpcodes0[] = { ARM::VLD3q8Pseudo_UPD, ARM::VLD3q16Pseudo_UPD, ARM::VLD3q32Pseudo_UPD }; @@ -2848,7 +2905,7 @@ SDNode *ARMDAGToDAGISel::Select(SDNode *N) { static const uint16_t DOpcodes[] = { ARM::VLD4d8Pseudo_UPD, ARM::VLD4d16Pseudo_UPD, ARM::VLD4d32Pseudo_UPD, - ARM::VLD1q64wb_fixed}; + ARM::VLD1d64QPseudoWB_fixed}; static const uint16_t QOpcodes0[] = { ARM::VLD4q8Pseudo_UPD, ARM::VLD4q16Pseudo_UPD, ARM::VLD4q32Pseudo_UPD }; |
