diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Target/X86/X86InstrFormats.td | 1 | ||||
-rw-r--r-- | lib/Target/X86/X86InstrInfo.h | 7 | ||||
-rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 24 | ||||
-rw-r--r-- | lib/Target/X86/X86MCCodeEmitter.cpp | 8 |
4 files changed, 28 insertions, 12 deletions
diff --git a/lib/Target/X86/X86InstrFormats.td b/lib/Target/X86/X86InstrFormats.td index f5da482..11c4e74 100644 --- a/lib/Target/X86/X86InstrFormats.td +++ b/lib/Target/X86/X86InstrFormats.td @@ -39,6 +39,7 @@ def MRM_E8 : Format<39>; def MRM_F0 : Format<40>; def MRM_F8 : Format<41>; def MRM_F9 : Format<42>; +def RawFrmImm16 : Format<43>; // ImmType - This specifies the immediate type used by an instruction. This is // part of the ad-hoc solution used to emit machine instruction encodings by our diff --git a/lib/Target/X86/X86InstrInfo.h b/lib/Target/X86/X86InstrInfo.h index 8c68bc6..c837a85 100644 --- a/lib/Target/X86/X86InstrInfo.h +++ b/lib/Target/X86/X86InstrInfo.h @@ -311,6 +311,12 @@ namespace X86II { MRM_F0 = 40, MRM_F8 = 41, MRM_F9 = 42, + + /// RawFrmImm16 - This is used for CALL FAR instructions, which have two + /// immediates, the first of which is a 16 or 32-bit immediate (specified by + /// the imm encoding) and the second is a 16-bit fixed value. In the AMD + /// manual, this operand is described as pntr16:32 and pntr16:16 + RawFrmImm16 = 43, FormMask = 63, @@ -522,6 +528,7 @@ namespace X86II { case X86II::AddRegFrm: case X86II::MRMDestReg: case X86II::MRMSrcReg: + case X86II::RawFrmImm16: return -1; case X86II::MRMDestMem: return 0; diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index e70840a..73788a1 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -675,12 +675,12 @@ let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in { def JMP32m : I<0xFF, MRM4m, (outs), (ins i32mem:$dst), "jmp{l}\t{*}$dst", [(brind (loadi32 addr:$dst))]>, Requires<[In32BitMode]>; - def FARJMP16i : Iseg16<0xEA, RawFrm, (outs), - (ins i16imm:$seg, i16imm:$off), - "ljmp{w}\t$seg, $off", []>, OpSize; - def FARJMP32i : Iseg32<0xEA, RawFrm, (outs), - (ins i16imm:$seg, i32imm:$off), - "ljmp{l}\t$seg, $off", []>; + def FARJMP16i : Iseg16<0xEA, RawFrmImm16, (outs), + (ins i16imm:$off, i16imm:$seg), + "ljmp{w}\t{$seg, $off|$off, $seg}", []>, OpSize; + def FARJMP32i : Iseg32<0xEA, RawFrmImm16, (outs), + (ins i32imm:$off, i16imm:$seg), + "ljmp{l}\t{$seg, $off|$off, $seg}", []>; def FARJMP16m : I<0xFF, MRM5m, (outs), (ins opaque32mem:$dst), "ljmp{w}\t{*}$dst", []>, OpSize; @@ -716,12 +716,12 @@ let isCall = 1 in def CALL32m : I<0xFF, MRM2m, (outs), (ins i32mem:$dst, variable_ops), "call\t{*}$dst", [(X86call (loadi32 addr:$dst))]>; - def FARCALL16i : Iseg16<0x9A, RawFrm, (outs), - (ins i16imm:$seg, i16imm:$off), - "lcall{w}\t$seg, $off", []>, OpSize; - def FARCALL32i : Iseg32<0x9A, RawFrm, (outs), - (ins i16imm:$seg, i32imm:$off), - "lcall{l}\t$seg, $off", []>; + def FARCALL16i : Iseg16<0x9A, RawFrmImm16, (outs), + (ins i16imm:$off, i16imm:$seg), + "lcall{w}\t{$seg, $off|$off, $seg}", []>, OpSize; + def FARCALL32i : Iseg32<0x9A, RawFrmImm16, (outs), + (ins i32imm:$off, i16imm:$seg), + "lcall{l}\t{$seg, $off|$off, $seg}", []>; def FARCALL16m : I<0xFF, MRM3m, (outs), (ins opaque32mem:$dst), "lcall{w}\t{*}$dst", []>, OpSize; diff --git a/lib/Target/X86/X86MCCodeEmitter.cpp b/lib/Target/X86/X86MCCodeEmitter.cpp index b39fce1..6065483 100644 --- a/lib/Target/X86/X86MCCodeEmitter.cpp +++ b/lib/Target/X86/X86MCCodeEmitter.cpp @@ -827,6 +827,14 @@ EncodeInstruction(const MCInst &MI, raw_ostream &OS, case X86II::RawFrm: EmitByte(BaseOpcode, CurByte, OS); break; + + case X86II::RawFrmImm16: + EmitByte(BaseOpcode, CurByte, OS); + EmitImmediate(MI.getOperand(CurOp++), + X86II::getSizeOfImm(TSFlags), getImmFixupKind(TSFlags), + CurByte, OS, Fixups); + EmitImmediate(MI.getOperand(CurOp++), 2, FK_Data_2, CurByte, OS, Fixups); + break; case X86II::AddRegFrm: EmitByte(BaseOpcode + GetX86RegNum(MI.getOperand(CurOp++)), CurByte, OS); |