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author | Jim Grosbach <grosbach@apple.com> | 2011-10-24 22:16:58 +0000 |
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committer | Jim Grosbach <grosbach@apple.com> | 2011-10-24 22:16:58 +0000 |
commit | 12431329d617064d6e72dd040a58c1635cc261ab (patch) | |
tree | 50b7d14047d3222383285fdb354e5ab2a50f1ac3 /lib | |
parent | 7f53d592ffbef0225a95cbd97d653307f546a347 (diff) | |
download | external_llvm-12431329d617064d6e72dd040a58c1635cc261ab.zip external_llvm-12431329d617064d6e72dd040a58c1635cc261ab.tar.gz external_llvm-12431329d617064d6e72dd040a58c1635cc261ab.tar.bz2 |
ARM assembly parsing and encoding for VLD1 w/ writeback.
One and two length register list variants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142861 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Target/ARM/ARMInstrNEON.td | 4 | ||||
-rw-r--r-- | lib/Target/ARM/AsmParser/ARMAsmParser.cpp | 34 |
2 files changed, 38 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMInstrNEON.td b/lib/Target/ARM/ARMInstrNEON.td index 9bea53b..ff1a09a 100644 --- a/lib/Target/ARM/ARMInstrNEON.td +++ b/lib/Target/ARM/ARMInstrNEON.td @@ -325,6 +325,7 @@ multiclass VLD1DWB<bits<4> op7_4, string Dt> { let Rm = 0b1101; // NLdSt will assign to the right encoding bits. let Inst{4} = Rn{4}; let DecoderMethod = "DecodeVLDInstruction"; + let AsmMatchConverter = "cvtVLDwbFixed"; } def _register : NLdSt<0,0b10,0b0111,op7_4, (outs VecListOneD:$Vd, GPR:$wb), (ins addrmode6:$Rn, rGPR:$Rm), IIC_VLD1u, @@ -332,6 +333,7 @@ multiclass VLD1DWB<bits<4> op7_4, string Dt> { "$Rn.addr = $wb", []> { let Inst{4} = Rn{4}; let DecoderMethod = "DecodeVLDInstruction"; + let AsmMatchConverter = "cvtVLDwbRegister"; } } multiclass VLD1QWB<bits<4> op7_4, string Dt> { @@ -342,6 +344,7 @@ multiclass VLD1QWB<bits<4> op7_4, string Dt> { let Rm = 0b1101; // NLdSt will assign to the right encoding bits. let Inst{5-4} = Rn{5-4}; let DecoderMethod = "DecodeVLDInstruction"; + let AsmMatchConverter = "cvtVLDwbFixed"; } def _register : NLdSt<0,0b10,0b1010,op7_4, (outs VecListTwoD:$Vd, GPR:$wb), (ins addrmode6:$Rn, rGPR:$Rm), IIC_VLD1x2u, @@ -349,6 +352,7 @@ multiclass VLD1QWB<bits<4> op7_4, string Dt> { "$Rn.addr = $wb", []> { let Inst{5-4} = Rn{5-4}; let DecoderMethod = "DecodeVLDInstruction"; + let AsmMatchConverter = "cvtVLDwbRegister"; } } diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp index a13554f..a278f6f 100644 --- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp +++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp @@ -198,6 +198,10 @@ class ARMAsmParser : public MCTargetAsmParser { const SmallVectorImpl<MCParsedAsmOperand*> &); bool cvtThumbMultiply(MCInst &Inst, unsigned Opcode, const SmallVectorImpl<MCParsedAsmOperand*> &); + bool cvtVLDwbFixed(MCInst &Inst, unsigned Opcode, + const SmallVectorImpl<MCParsedAsmOperand*> &); + bool cvtVLDwbRegister(MCInst &Inst, unsigned Opcode, + const SmallVectorImpl<MCParsedAsmOperand*> &); bool validateInstruction(MCInst &Inst, const SmallVectorImpl<MCParsedAsmOperand*> &Ops); @@ -3326,6 +3330,36 @@ cvtThumbMultiply(MCInst &Inst, unsigned Opcode, return true; } +bool ARMAsmParser:: +cvtVLDwbFixed(MCInst &Inst, unsigned Opcode, + const SmallVectorImpl<MCParsedAsmOperand*> &Operands) { + // Vd + ((ARMOperand*)Operands[3])->addVecListTwoDOperands(Inst, 1); + // Create a writeback register dummy placeholder. + Inst.addOperand(MCOperand::CreateImm(0)); + // Vn + ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2); + // pred + ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2); + return true; +} + +bool ARMAsmParser:: +cvtVLDwbRegister(MCInst &Inst, unsigned Opcode, + const SmallVectorImpl<MCParsedAsmOperand*> &Operands) { + // Vd + ((ARMOperand*)Operands[3])->addVecListTwoDOperands(Inst, 1); + // Create a writeback register dummy placeholder. + Inst.addOperand(MCOperand::CreateImm(0)); + // Vn + ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2); + // Vm + ((ARMOperand*)Operands[5])->addRegOperands(Inst, 1); + // pred + ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2); + return true; +} + /// Parse an ARM memory expression, return false if successful else return true /// or an error. The first token must be a '[' when called. bool ARMAsmParser:: |