def SDT_X86TLSADDR : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
+def SDT_X86TLSCALL : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
+
def SDT_X86SegmentBaseAddress : SDTypeProfile<1, 1, [SDTCisPtrTy<0>]>;
def SDT_X86EHRET : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
def SDT_X86TCRET : SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisVT<1, i32>]>;
+def SDT_X86MEMBARRIER : SDTypeProfile<0, 0, []>;
+def SDT_X86MEMBARRIERNoSSE : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
+
+def X86MemBarrier : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIER,
+ [SDNPHasChain]>;
+def X86MemBarrierNoSSE : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIERNoSSE,
+ [SDNPHasChain]>;
+def X86MFence : SDNode<"X86ISD::MFENCE", SDT_X86MEMBARRIER,
+ [SDNPHasChain]>;
+def X86SFence : SDNode<"X86ISD::SFENCE", SDT_X86MEMBARRIER,
+ [SDNPHasChain]>;
+def X86LFence : SDNode<"X86ISD::LFENCE", SDT_X86MEMBARRIER,
+ [SDNPHasChain]>;
+
+
def X86bsf : SDNode<"X86ISD::BSF", SDTUnaryArithWithFlags>;
def X86bsr : SDNode<"X86ISD::BSR", SDTUnaryArithWithFlags>;
def X86shld : SDNode<"X86ISD::SHLD", SDTIntShiftDOp>;
def X86MingwAlloca : SDNode<"X86ISD::MINGW_ALLOCA", SDTX86Void,
[SDNPHasChain, SDNPInFlag, SDNPOutFlag]>;
+
+def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
+ []>;
//===----------------------------------------------------------------------===//
// X86 Operand Definitions.
//
def X86MemAsmOperand : AsmOperandClass {
let Name = "Mem";
- let SuperClass = ?;
-}
-def X86NoSegMemAsmOperand : AsmOperandClass {
- let Name = "NoSegMem";
- let SuperClass = X86MemAsmOperand;
+ let SuperClasses = [];
}
def X86AbsMemAsmOperand : AsmOperandClass {
let Name = "AbsMem";
- let SuperClass = X86NoSegMemAsmOperand;
+ let SuperClasses = [X86MemAsmOperand];
}
class X86MemOperand<string printMethod> : Operand<iPTR> {
let PrintMethod = printMethod;
def i32mem : X86MemOperand<"printi32mem">;
def i64mem : X86MemOperand<"printi64mem">;
def i128mem : X86MemOperand<"printi128mem">;
-//def i256mem : X86MemOperand<"printi256mem">;
+def i256mem : X86MemOperand<"printi256mem">;
def f32mem : X86MemOperand<"printf32mem">;
def f64mem : X86MemOperand<"printf64mem">;
def f80mem : X86MemOperand<"printf80mem">;
def f128mem : X86MemOperand<"printf128mem">;
-//def f256mem : X86MemOperand<"printf256mem">;
+def f256mem : X86MemOperand<"printf256mem">;
// A version of i8mem for use on x86-64 that uses GR64_NOREX instead of
// plain GR64, so that it doesn't potentially require a REX prefix.
let ParserMatchClass = X86MemAsmOperand;
}
-def lea32mem : Operand<i32> {
- let PrintMethod = "printlea32mem";
- let MIOperandInfo = (ops GR32, i8imm, GR32_NOSP, i32imm);
- let ParserMatchClass = X86NoSegMemAsmOperand;
-}
let ParserMatchClass = X86AbsMemAsmOperand,
PrintMethod = "print_pcrel_imm" in {
def i32imm_pcrel : Operand<i32>;
+def i16imm_pcrel : Operand<i16>;
def offset8 : Operand<i64>;
def offset16 : Operand<i64>;
let PrintMethod = "printSSECC";
}
-def ImmSExt8AsmOperand : AsmOperandClass {
- let Name = "ImmSExt8";
- let SuperClass = ImmAsmOperand;
+class ImmSExtAsmOperandClass : AsmOperandClass {
+ let SuperClasses = [ImmAsmOperand];
+ let RenderMethod = "addImmOperands";
+}
+
+// Sign-extended immediate classes. We don't need to define the full lattice
+// here because there is no instruction with an ambiguity between ImmSExti64i32
+// and ImmSExti32i8.
+//
+// The strange ranges come from the fact that the assembler always works with
+// 64-bit immediates, but for a 16-bit target value we want to accept both "-1"
+// (which will be a -1ULL), and "0xFF" (-1 in 16-bits).
+
+// [0, 0x7FFFFFFF] |
+// [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]
+def ImmSExti64i32AsmOperand : ImmSExtAsmOperandClass {
+ let Name = "ImmSExti64i32";
+}
+
+// [0, 0x0000007F] | [0x000000000000FF80, 0x000000000000FFFF] |
+// [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
+def ImmSExti16i8AsmOperand : ImmSExtAsmOperandClass {
+ let Name = "ImmSExti16i8";
+ let SuperClasses = [ImmSExti64i32AsmOperand];
+}
+
+// [0, 0x0000007F] | [0x00000000FFFFFF80, 0x00000000FFFFFFFF] |
+// [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
+def ImmSExti32i8AsmOperand : ImmSExtAsmOperandClass {
+ let Name = "ImmSExti32i8";
+}
+
+// [0, 0x0000007F] |
+// [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
+def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
+ let Name = "ImmSExti64i8";
+ let SuperClasses = [ImmSExti16i8AsmOperand, ImmSExti32i8AsmOperand,
+ ImmSExti64i32AsmOperand];
}
// A couple of more descriptive operand definitions.
// 16-bits but only 8 bits are significant.
def i16i8imm : Operand<i16> {
- let ParserMatchClass = ImmSExt8AsmOperand;
+ let ParserMatchClass = ImmSExti16i8AsmOperand;
}
// 32-bits but only 8 bits are significant.
def i32i8imm : Operand<i32> {
- let ParserMatchClass = ImmSExt8AsmOperand;
+ let ParserMatchClass = ImmSExti32i8AsmOperand;
}
//===----------------------------------------------------------------------===//
// Define X86 specific addressing mode.
def addr : ComplexPattern<iPTR, 5, "SelectAddr", [], []>;
-def lea32addr : ComplexPattern<i32, 4, "SelectLEAAddr",
+def lea32addr : ComplexPattern<i32, 5, "SelectLEAAddr",
[add, sub, mul, X86mul_imm, shl, or, frameindex],
[]>;
-def tls32addr : ComplexPattern<i32, 4, "SelectTLSADDRAddr",
+def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
[tglobaltlsaddr], []>;
//===----------------------------------------------------------------------===//
}
// Trap
-def INT3 : I<0xcc, RawFrm, (outs), (ins), "int\t3", []>;
-def INT : I<0xcd, RawFrm, (outs), (ins i8imm:$trap), "int\t$trap", []>;
+def INTO : I<0xce, RawFrm, (outs), (ins), "into", []>;
+def INT3 : I<0xcc, RawFrm, (outs), (ins), "int3", []>;
+// FIXME: need to make sure that "int $3" matches int3
+def INT : Ii8<0xcd, RawFrm, (outs), (ins i8imm:$trap), "int\t$trap", []>;
def IRET16 : I<0xcf, RawFrm, (outs), (ins), "iret{w}", []>, OpSize;
def IRET32 : I<0xcf, RawFrm, (outs), (ins), "iret{l}", []>;
// Indirect branches
let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
def JMP32r : I<0xFF, MRM4r, (outs), (ins GR32:$dst), "jmp{l}\t{*}$dst",
- [(brind GR32:$dst)]>;
+ [(brind GR32:$dst)]>, Requires<[In32BitMode]>;
def JMP32m : I<0xFF, MRM4m, (outs), (ins i32mem:$dst), "jmp{l}\t{*}$dst",
- [(brind (loadi32 addr:$dst))]>;
+ [(brind (loadi32 addr:$dst))]>, Requires<[In32BitMode]>;
def FARJMP16i : Iseg16<0xEA, RawFrm, (outs),
(ins i16imm:$seg, i16imm:$off),
"lcall{w}\t{*}$dst", []>, OpSize;
def FARCALL32m : I<0xFF, MRM3m, (outs), (ins opaque48mem:$dst),
"lcall{l}\t{*}$dst", []>;
+
+ // callw for 16 bit code for the assembler.
+ let isAsmParserOnly = 1 in
+ def CALLpcrel16 : Ii16PCRel<0xE8, RawFrm,
+ (outs), (ins i16imm_pcrel:$dst, variable_ops),
+ "callw\t$dst", []>, OpSize;
}
// Constructing a stack frame.
// Tail call stuff.
-let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in
+let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1,
+ isCodeGenOnly = 1 in
let Defs = [EAX, ECX, EDX, FP0, FP1, FP2, FP3, FP4, FP5, FP6, ST0,
MM0, MM1, MM2, MM3, MM4, MM5, MM6, MM7,
XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7,
def TCRETURNri : I<0, Pseudo, (outs),
(ins GR32_TC:$dst, i32imm:$offset, variable_ops),
"#TC_RETURN $dst $offset", []>;
+ let mayLoad = 1 in
def TCRETURNmi : I<0, Pseudo, (outs),
(ins i32mem_TC:$dst, i32imm:$offset, variable_ops),
"#TC_RETURN $dst $offset", []>;
"jmp\t$dst # TAILCALL",
[]>;
def TAILJMPr : I<0xFF, MRM4r, (outs), (ins GR32_TC:$dst, variable_ops),
- "jmp{l}\t{*}$dst # TAILCALL",
- []>;
+ "", []>; // FIXME: Remove encoding when JIT is dead.
+ let mayLoad = 1 in
def TAILJMPm : I<0xFF, MRM4m, (outs), (ins i32mem_TC:$dst, variable_ops),
"jmp{l}\t{*}$dst # TAILCALL", []>;
}
//
let Defs = [EBP, ESP], Uses = [EBP, ESP], mayLoad = 1, neverHasSideEffects=1 in
def LEAVE : I<0xC9, RawFrm,
- (outs), (ins), "leave", []>;
+ (outs), (ins), "leave", []>, Requires<[In32BitMode]>;
def POPCNT16rr : I<0xB8, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
"popcnt{w}\t{$src, $dst|$dst, $src}", []>, OpSize, XS;
+let mayLoad = 1 in
def POPCNT16rm : I<0xB8, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
"popcnt{w}\t{$src, $dst|$dst, $src}", []>, OpSize, XS;
def POPCNT32rr : I<0xB8, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
"popcnt{l}\t{$src, $dst|$dst, $src}", []>, XS;
+let mayLoad = 1 in
def POPCNT32rm : I<0xB8, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
"popcnt{l}\t{$src, $dst|$dst, $src}", []>, XS;
}
let Defs = [ESP, EFLAGS], Uses = [ESP], mayLoad = 1, neverHasSideEffects=1 in {
-def POPF : I<0x9D, RawFrm, (outs), (ins), "popf{w}", []>, OpSize;
-def POPFD : I<0x9D, RawFrm, (outs), (ins), "popf{l}", []>;
+def POPF16 : I<0x9D, RawFrm, (outs), (ins), "popf{w}", []>, OpSize;
+def POPF32 : I<0x9D, RawFrm, (outs), (ins), "popf{l|d}", []>,
+ Requires<[In32BitMode]>;
}
let Defs = [ESP], Uses = [ESP, EFLAGS], mayStore = 1, neverHasSideEffects=1 in {
-def PUSHF : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", []>, OpSize;
-def PUSHFD : I<0x9C, RawFrm, (outs), (ins), "pushf{l}", []>;
+def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", []>, OpSize;
+def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", []>,
+ Requires<[In32BitMode]>;
+}
+
+let Defs = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP], Uses = [ESP],
+ mayLoad=1, neverHasSideEffects=1 in {
+def POPA32 : I<0x61, RawFrm, (outs), (ins), "popa{l}", []>,
+ Requires<[In32BitMode]>;
+}
+let Defs = [ESP], Uses = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP],
+ mayStore=1, neverHasSideEffects=1 in {
+def PUSHA32 : I<0x60, RawFrm, (outs), (ins), "pusha{l}", []>,
+ Requires<[In32BitMode]>;
}
-let isTwoAddress = 1 in // GR32 = bswap GR32
+let Uses = [EFLAGS], Constraints = "$src = $dst" in // GR32 = bswap GR32
def BSWAP32r : I<0xC8, AddRegFrm,
(outs GR32:$dst), (ins GR32:$src),
"bswap{l}\t$dst",
let neverHasSideEffects = 1 in
def LEA16r : I<0x8D, MRMSrcMem,
- (outs GR16:$dst), (ins lea32mem:$src),
+ (outs GR16:$dst), (ins i32mem:$src),
"lea{w}\t{$src|$dst}, {$dst|$src}", []>, OpSize;
let isReMaterializable = 1 in
def LEA32r : I<0x8D, MRMSrcMem,
- (outs GR32:$dst), (ins lea32mem:$src),
+ (outs GR32:$dst), (ins i32mem:$src),
"lea{l}\t{$src|$dst}, {$dst|$src}",
[(set GR32:$dst, lea32addr:$src)]>, Requires<[In32BitMode]>;
let Defs = [RAX, RCX, RDX] in
def RDTSCP : I<0x01, MRM_F9, (outs), (ins), "rdtscp", []>, TB;
-let isBarrier = 1, hasCtrlDep = 1 in {
+let isTerminator = 1, isBarrier = 1, hasCtrlDep = 1 in {
def TRAP : I<0x0B, RawFrm, (outs), (ins), "ud2", [(trap)]>, TB;
}
def SYSENTER : I<0x34, RawFrm,
(outs), (ins), "sysenter", []>, TB;
def SYSEXIT : I<0x35, RawFrm,
- (outs), (ins), "sysexit", []>, TB;
+ (outs), (ins), "sysexit", []>, TB, Requires<[In32BitMode]>;
def WAIT : I<0x9B, RawFrm, (outs), (ins), "wait", []>;
/// moffs8, moffs16 and moffs32 versions of moves. The immediate is a
/// 32-bit offset from the PC. These are only valid in x86-32 mode.
def MOV8o8a : Ii32 <0xA0, RawFrm, (outs), (ins offset8:$src),
- "mov{b}\t{$src, %al|%al, $src}", []>;
+ "mov{b}\t{$src, %al|%al, $src}", []>,
+ Requires<[In32BitMode]>;
def MOV16o16a : Ii32 <0xA1, RawFrm, (outs), (ins offset16:$src),
- "mov{w}\t{$src, %ax|%ax, $src}", []>, OpSize;
+ "mov{w}\t{$src, %ax|%ax, $src}", []>, OpSize,
+ Requires<[In32BitMode]>;
def MOV32o32a : Ii32 <0xA1, RawFrm, (outs), (ins offset32:$src),
- "mov{l}\t{$src, %eax|%eax, $src}", []>;
+ "mov{l}\t{$src, %eax|%eax, $src}", []>,
+ Requires<[In32BitMode]>;
def MOV8ao8 : Ii32 <0xA2, RawFrm, (outs offset8:$dst), (ins),
- "mov{b}\t{%al, $dst|$dst, %al}", []>;
+ "mov{b}\t{%al, $dst|$dst, %al}", []>,
+ Requires<[In32BitMode]>;
def MOV16ao16 : Ii32 <0xA3, RawFrm, (outs offset16:$dst), (ins),
- "mov{w}\t{%ax, $dst|$dst, %ax}", []>, OpSize;
+ "mov{w}\t{%ax, $dst|$dst, %ax}", []>, OpSize,
+ Requires<[In32BitMode]>;
def MOV32ao32 : Ii32 <0xA3, RawFrm, (outs offset32:$dst), (ins),
- "mov{l}\t{%eax, $dst|$dst, %eax}", []>;
+ "mov{l}\t{%eax, $dst|$dst, %eax}", []>,
+ Requires<[In32BitMode]>;
// Moves to and from segment registers
def MOV16rs : I<0x8C, MRMDestReg, (outs GR16:$dst), (ins SEGMENT_REG:$src),
- "mov{w}\t{$src, $dst|$dst, $src}", []>;
+ "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
+def MOV32rs : I<0x8C, MRMDestReg, (outs GR32:$dst), (ins SEGMENT_REG:$src),
+ "mov{l}\t{$src, $dst|$dst, $src}", []>;
def MOV16ms : I<0x8C, MRMDestMem, (outs i16mem:$dst), (ins SEGMENT_REG:$src),
- "mov{w}\t{$src, $dst|$dst, $src}", []>;
+ "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
+def MOV32ms : I<0x8C, MRMDestMem, (outs i32mem:$dst), (ins SEGMENT_REG:$src),
+ "mov{l}\t{$src, $dst|$dst, $src}", []>;
def MOV16sr : I<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR16:$src),
- "mov{w}\t{$src, $dst|$dst, $src}", []>;
+ "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
+def MOV32sr : I<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR32:$src),
+ "mov{l}\t{$src, $dst|$dst, $src}", []>;
def MOV16sm : I<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i16mem:$src),
- "mov{w}\t{$src, $dst|$dst, $src}", []>;
+ "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
+def MOV32sm : I<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i32mem:$src),
+ "mov{l}\t{$src, $dst|$dst, $src}", []>;
+let isCodeGenOnly = 1 in {
def MOV8rr_REV : I<0x8A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src),
"mov{b}\t{$src, $dst|$dst, $src}", []>;
def MOV16rr_REV : I<0x8B, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
"mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
def MOV32rr_REV : I<0x8B, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
"mov{l}\t{$src, $dst|$dst, $src}", []>;
+}
let canFoldAsLoad = 1, isReMaterializable = 1 in {
def MOV8rm : I<0x8A, MRMSrcMem, (outs GR8 :$dst), (ins i8mem :$src),
[(store GR32:$src, addr:$dst)]>;
/// Versions of MOV32rr, MOV32rm, and MOV32mr for i32mem_TC and GR32_TC.
+let isCodeGenOnly = 1 in {
let neverHasSideEffects = 1 in
def MOV32rr_TC : I<0x89, MRMDestReg, (outs GR32_TC:$dst), (ins GR32_TC:$src),
"mov{l}\t{$src, $dst|$dst, $src}", []>;
def MOV32mr_TC : I<0x89, MRMDestMem, (outs), (ins i32mem_TC:$dst, GR32_TC:$src),
"mov{l}\t{$src, $dst|$dst, $src}",
[]>;
+}
// Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
// that they can be used for copying and storing h registers, which can't be
// encoded when a REX prefix is present.
+let isCodeGenOnly = 1 in {
let neverHasSideEffects = 1 in
def MOV8rr_NOREX : I<0x88, MRMDestReg,
(outs GR8_NOREX:$dst), (ins GR8_NOREX:$src),
def MOV8rm_NOREX : I<0x8A, MRMSrcMem,
(outs GR8_NOREX:$dst), (ins i8mem_NOREX:$src),
"mov{b}\t{$src, $dst|$dst, $src} # NOREX", []>;
+}
// Moves to and from debug registers
def MOV32rd : I<0x21, MRMDestReg, (outs GR32:$dst), (ins DEBUG_REG:$src),
//===----------------------------------------------------------------------===//
// Two address Instructions.
//
-let isTwoAddress = 1 in {
+let Constraints = "$src1 = $dst" in {
// Conditional moves
let Uses = [EFLAGS] in {
// i8 register pressure. Note that CMOV_GR8 is conservatively considered to
// clobber EFLAGS, because if one of the operands is zero, the expansion
// could involve an xor.
-let usesCustomInserter = 1, isTwoAddress = 0, Defs = [EFLAGS] in {
+let usesCustomInserter = 1, Constraints = "", Defs = [EFLAGS] in {
def CMOV_GR8 : I<0, Pseudo,
(outs GR8:$dst), (ins GR8:$src1, GR8:$src2, i8imm:$cond),
"#CMOV_GR8 PSEUDO!",
[(set GR16:$dst,
(X86cmov GR16:$src1, GR16:$src2, imm:$cond, EFLAGS))]>;
def CMOV_RFP32 : I<0, Pseudo,
- (outs RFP32:$dst), (ins RFP32:$src1, RFP32:$src2, i8imm:$cond),
+ (outs RFP32:$dst),
+ (ins RFP32:$src1, RFP32:$src2, i8imm:$cond),
"#CMOV_RFP32 PSEUDO!",
- [(set RFP32:$dst, (X86cmov RFP32:$src1, RFP32:$src2, imm:$cond,
+ [(set RFP32:$dst,
+ (X86cmov RFP32:$src1, RFP32:$src2, imm:$cond,
EFLAGS))]>;
def CMOV_RFP64 : I<0, Pseudo,
- (outs RFP64:$dst), (ins RFP64:$src1, RFP64:$src2, i8imm:$cond),
+ (outs RFP64:$dst),
+ (ins RFP64:$src1, RFP64:$src2, i8imm:$cond),
"#CMOV_RFP64 PSEUDO!",
- [(set RFP64:$dst, (X86cmov RFP64:$src1, RFP64:$src2, imm:$cond,
+ [(set RFP64:$dst,
+ (X86cmov RFP64:$src1, RFP64:$src2, imm:$cond,
EFLAGS))]>;
def CMOV_RFP80 : I<0, Pseudo,
- (outs RFP80:$dst), (ins RFP80:$src1, RFP80:$src2, i8imm:$cond),
+ (outs RFP80:$dst),
+ (ins RFP80:$src1, RFP80:$src2, i8imm:$cond),
"#CMOV_RFP80 PSEUDO!",
- [(set RFP80:$dst, (X86cmov RFP80:$src1, RFP80:$src2, imm:$cond,
+ [(set RFP80:$dst,
+ (X86cmov RFP80:$src1, RFP80:$src2, imm:$cond,
EFLAGS))]>;
} // Predicates = [NoCMov]
-} // UsesCustomInserter = 1, isTwoAddress = 0, Defs = [EFLAGS]
+} // UsesCustomInserter = 1, Constraints = "", Defs = [EFLAGS]
} // Uses = [EFLAGS]
// unary instructions
let CodeSize = 2 in {
let Defs = [EFLAGS] in {
-def NEG8r : I<0xF6, MRM3r, (outs GR8 :$dst), (ins GR8 :$src), "neg{b}\t$dst",
- [(set GR8:$dst, (ineg GR8:$src)),
+def NEG8r : I<0xF6, MRM3r, (outs GR8 :$dst), (ins GR8 :$src1),
+ "neg{b}\t$dst",
+ [(set GR8:$dst, (ineg GR8:$src1)),
(implicit EFLAGS)]>;
-def NEG16r : I<0xF7, MRM3r, (outs GR16:$dst), (ins GR16:$src), "neg{w}\t$dst",
- [(set GR16:$dst, (ineg GR16:$src)),
+def NEG16r : I<0xF7, MRM3r, (outs GR16:$dst), (ins GR16:$src1),
+ "neg{w}\t$dst",
+ [(set GR16:$dst, (ineg GR16:$src1)),
(implicit EFLAGS)]>, OpSize;
-def NEG32r : I<0xF7, MRM3r, (outs GR32:$dst), (ins GR32:$src), "neg{l}\t$dst",
- [(set GR32:$dst, (ineg GR32:$src)),
+def NEG32r : I<0xF7, MRM3r, (outs GR32:$dst), (ins GR32:$src1),
+ "neg{l}\t$dst",
+ [(set GR32:$dst, (ineg GR32:$src1)),
(implicit EFLAGS)]>;
-let isTwoAddress = 0 in {
- def NEG8m : I<0xF6, MRM3m, (outs), (ins i8mem :$dst), "neg{b}\t$dst",
+
+let Constraints = "" in {
+ def NEG8m : I<0xF6, MRM3m, (outs), (ins i8mem :$dst),
+ "neg{b}\t$dst",
[(store (ineg (loadi8 addr:$dst)), addr:$dst),
(implicit EFLAGS)]>;
- def NEG16m : I<0xF7, MRM3m, (outs), (ins i16mem:$dst), "neg{w}\t$dst",
+ def NEG16m : I<0xF7, MRM3m, (outs), (ins i16mem:$dst),
+ "neg{w}\t$dst",
[(store (ineg (loadi16 addr:$dst)), addr:$dst),
(implicit EFLAGS)]>, OpSize;
- def NEG32m : I<0xF7, MRM3m, (outs), (ins i32mem:$dst), "neg{l}\t$dst",
+ def NEG32m : I<0xF7, MRM3m, (outs), (ins i32mem:$dst),
+ "neg{l}\t$dst",
[(store (ineg (loadi32 addr:$dst)), addr:$dst),
(implicit EFLAGS)]>;
-}
+} // Constraints = ""
} // Defs = [EFLAGS]
// Match xor -1 to not. Favors these over a move imm + xor to save code size.
let AddedComplexity = 15 in {
-def NOT8r : I<0xF6, MRM2r, (outs GR8 :$dst), (ins GR8 :$src), "not{b}\t$dst",
- [(set GR8:$dst, (not GR8:$src))]>;
-def NOT16r : I<0xF7, MRM2r, (outs GR16:$dst), (ins GR16:$src), "not{w}\t$dst",
- [(set GR16:$dst, (not GR16:$src))]>, OpSize;
-def NOT32r : I<0xF7, MRM2r, (outs GR32:$dst), (ins GR32:$src), "not{l}\t$dst",
- [(set GR32:$dst, (not GR32:$src))]>;
+def NOT8r : I<0xF6, MRM2r, (outs GR8 :$dst), (ins GR8 :$src1),
+ "not{b}\t$dst",
+ [(set GR8:$dst, (not GR8:$src1))]>;
+def NOT16r : I<0xF7, MRM2r, (outs GR16:$dst), (ins GR16:$src1),
+ "not{w}\t$dst",
+ [(set GR16:$dst, (not GR16:$src1))]>, OpSize;
+def NOT32r : I<0xF7, MRM2r, (outs GR32:$dst), (ins GR32:$src1),
+ "not{l}\t$dst",
+ [(set GR32:$dst, (not GR32:$src1))]>;
}
-let isTwoAddress = 0 in {
- def NOT8m : I<0xF6, MRM2m, (outs), (ins i8mem :$dst), "not{b}\t$dst",
+let Constraints = "" in {
+ def NOT8m : I<0xF6, MRM2m, (outs), (ins i8mem :$dst),
+ "not{b}\t$dst",
[(store (not (loadi8 addr:$dst)), addr:$dst)]>;
- def NOT16m : I<0xF7, MRM2m, (outs), (ins i16mem:$dst), "not{w}\t$dst",
+ def NOT16m : I<0xF7, MRM2m, (outs), (ins i16mem:$dst),
+ "not{w}\t$dst",
[(store (not (loadi16 addr:$dst)), addr:$dst)]>, OpSize;
- def NOT32m : I<0xF7, MRM2m, (outs), (ins i32mem:$dst), "not{l}\t$dst",
+ def NOT32m : I<0xF7, MRM2m, (outs), (ins i32mem:$dst),
+ "not{l}\t$dst",
[(store (not (loadi32 addr:$dst)), addr:$dst)]>;
-}
+} // Constraints = ""
} // CodeSize
// TODO: inc/dec is slow for P4, but fast for Pentium-M.
let Defs = [EFLAGS] in {
let CodeSize = 2 in
-def INC8r : I<0xFE, MRM0r, (outs GR8 :$dst), (ins GR8 :$src), "inc{b}\t$dst",
- [(set GR8:$dst, EFLAGS, (X86inc_flag GR8:$src))]>;
+def INC8r : I<0xFE, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1),
+ "inc{b}\t$dst",
+ [(set GR8:$dst, EFLAGS, (X86inc_flag GR8:$src1))]>;
let isConvertibleToThreeAddress = 1, CodeSize = 1 in { // Can xform into LEA.
-def INC16r : I<0x40, AddRegFrm, (outs GR16:$dst), (ins GR16:$src),
+def INC16r : I<0x40, AddRegFrm, (outs GR16:$dst), (ins GR16:$src1),
"inc{w}\t$dst",
- [(set GR16:$dst, EFLAGS, (X86inc_flag GR16:$src))]>,
+ [(set GR16:$dst, EFLAGS, (X86inc_flag GR16:$src1))]>,
OpSize, Requires<[In32BitMode]>;
-def INC32r : I<0x40, AddRegFrm, (outs GR32:$dst), (ins GR32:$src),
+def INC32r : I<0x40, AddRegFrm, (outs GR32:$dst), (ins GR32:$src1),
"inc{l}\t$dst",
- [(set GR32:$dst, EFLAGS, (X86inc_flag GR32:$src))]>,
+ [(set GR32:$dst, EFLAGS, (X86inc_flag GR32:$src1))]>,
Requires<[In32BitMode]>;
}
-let isTwoAddress = 0, CodeSize = 2 in {
+let Constraints = "", CodeSize = 2 in {
def INC8m : I<0xFE, MRM0m, (outs), (ins i8mem :$dst), "inc{b}\t$dst",
[(store (add (loadi8 addr:$dst), 1), addr:$dst),
(implicit EFLAGS)]>;
[(store (add (loadi32 addr:$dst), 1), addr:$dst),
(implicit EFLAGS)]>,
Requires<[In32BitMode]>;
-}
+} // Constraints = "", CodeSize = 2
let CodeSize = 2 in
-def DEC8r : I<0xFE, MRM1r, (outs GR8 :$dst), (ins GR8 :$src), "dec{b}\t$dst",
- [(set GR8:$dst, EFLAGS, (X86dec_flag GR8:$src))]>;
+def DEC8r : I<0xFE, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1),
+ "dec{b}\t$dst",
+ [(set GR8:$dst, EFLAGS, (X86dec_flag GR8:$src1))]>;
let isConvertibleToThreeAddress = 1, CodeSize = 1 in { // Can xform into LEA.
-def DEC16r : I<0x48, AddRegFrm, (outs GR16:$dst), (ins GR16:$src),
+def DEC16r : I<0x48, AddRegFrm, (outs GR16:$dst), (ins GR16:$src1),
"dec{w}\t$dst",
- [(set GR16:$dst, EFLAGS, (X86dec_flag GR16:$src))]>,
+ [(set GR16:$dst, EFLAGS, (X86dec_flag GR16:$src1))]>,
OpSize, Requires<[In32BitMode]>;
-def DEC32r : I<0x48, AddRegFrm, (outs GR32:$dst), (ins GR32:$src),
+def DEC32r : I<0x48, AddRegFrm, (outs GR32:$dst), (ins GR32:$src1),
"dec{l}\t$dst",
- [(set GR32:$dst, EFLAGS, (X86dec_flag GR32:$src))]>,
+ [(set GR32:$dst, EFLAGS, (X86dec_flag GR32:$src1))]>,
Requires<[In32BitMode]>;
-}
+} // CodeSize = 2
-let isTwoAddress = 0, CodeSize = 2 in {
+let Constraints = "", CodeSize = 2 in {
def DEC8m : I<0xFE, MRM1m, (outs), (ins i8mem :$dst), "dec{b}\t$dst",
[(store (add (loadi8 addr:$dst), -1), addr:$dst),
(implicit EFLAGS)]>;
[(store (add (loadi32 addr:$dst), -1), addr:$dst),
(implicit EFLAGS)]>,
Requires<[In32BitMode]>;
-}
+} // Constraints = "", CodeSize = 2
} // Defs = [EFLAGS]
// Logical operators...
// AND instructions with the destination register in REG and the source register
// in R/M. Included for the disassembler.
+let isCodeGenOnly = 1 in {
def AND8rr_REV : I<0x22, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src1, GR8:$src2),
"and{b}\t{$src2, $dst|$dst, $src2}", []>;
def AND16rr_REV : I<0x23, MRMSrcReg, (outs GR16:$dst),
def AND32rr_REV : I<0x23, MRMSrcReg, (outs GR32:$dst),
(ins GR32:$src1, GR32:$src2),
"and{l}\t{$src2, $dst|$dst, $src2}", []>;
+}
def AND8rm : I<0x22, MRMSrcMem,
(outs GR8 :$dst), (ins GR8 :$src1, i8mem :$src2),
[(set GR32:$dst, EFLAGS, (X86and_flag GR32:$src1,
i32immSExt8:$src2))]>;
-let isTwoAddress = 0 in {
+let Constraints = "" in {
def AND8mr : I<0x20, MRMDestMem,
(outs), (ins i8mem :$dst, GR8 :$src),
"and{b}\t{$src, $dst|$dst, $src}",
def AND32i32 : Ii32<0x25, RawFrm, (outs), (ins i32imm:$src),
"and{l}\t{$src, %eax|%eax, $src}", []>;
-}
+} // Constraints = ""
let isCommutable = 1 in { // X = OR Y, Z --> X = OR Z, Y
// OR instructions with the destination register in REG and the source register
// in R/M. Included for the disassembler.
+let isCodeGenOnly = 1 in {
def OR8rr_REV : I<0x0A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src1, GR8:$src2),
"or{b}\t{$src2, $dst|$dst, $src2}", []>;
def OR16rr_REV : I<0x0B, MRMSrcReg, (outs GR16:$dst),
def OR32rr_REV : I<0x0B, MRMSrcReg, (outs GR32:$dst),
(ins GR32:$src1, GR32:$src2),
"or{l}\t{$src2, $dst|$dst, $src2}", []>;
+}
def OR8rm : I<0x0A, MRMSrcMem, (outs GR8 :$dst),
(ins GR8 :$src1, i8mem :$src2),
"or{l}\t{$src2, $dst|$dst, $src2}",
[(set GR32:$dst, EFLAGS, (X86or_flag GR32:$src1,
i32immSExt8:$src2))]>;
-let isTwoAddress = 0 in {
+let Constraints = "" in {
def OR8mr : I<0x08, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
"or{b}\t{$src, $dst|$dst, $src}",
[(store (or (load addr:$dst), GR8:$src), addr:$dst),
"or{w}\t{$src, %ax|%ax, $src}", []>, OpSize;
def OR32i32 : Ii32 <0x0D, RawFrm, (outs), (ins i32imm:$src),
"or{l}\t{$src, %eax|%eax, $src}", []>;
-} // isTwoAddress = 0
+} // Constraints = ""
let isCommutable = 1 in { // X = XOR Y, Z --> X = XOR Z, Y
// XOR instructions with the destination register in REG and the source register
// in R/M. Included for the disassembler.
+let isCodeGenOnly = 1 in {
def XOR8rr_REV : I<0x32, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src1, GR8:$src2),
"xor{b}\t{$src2, $dst|$dst, $src2}", []>;
def XOR16rr_REV : I<0x33, MRMSrcReg, (outs GR16:$dst),
def XOR32rr_REV : I<0x33, MRMSrcReg, (outs GR32:$dst),
(ins GR32:$src1, GR32:$src2),
"xor{l}\t{$src2, $dst|$dst, $src2}", []>;
+}
def XOR8rm : I<0x32, MRMSrcMem,
(outs GR8 :$dst), (ins GR8:$src1, i8mem :$src2),
[(set GR32:$dst, EFLAGS, (X86xor_flag GR32:$src1,
i32immSExt8:$src2))]>;
-let isTwoAddress = 0 in {
+let Constraints = "" in {
def XOR8mr : I<0x30, MRMDestMem,
(outs), (ins i8mem :$dst, GR8 :$src),
"xor{b}\t{$src, $dst|$dst, $src}",
"xor{w}\t{$src, %ax|%ax, $src}", []>, OpSize;
def XOR32i32 : Ii32<0x35, RawFrm, (outs), (ins i32imm:$src),
"xor{l}\t{$src, %eax|%eax, $src}", []>;
-} // isTwoAddress = 0
+} // Constraints = ""
} // Defs = [EFLAGS]
// Shift instructions
let Defs = [EFLAGS] in {
let Uses = [CL] in {
-def SHL8rCL : I<0xD2, MRM4r, (outs GR8 :$dst), (ins GR8 :$src),
+def SHL8rCL : I<0xD2, MRM4r, (outs GR8 :$dst), (ins GR8 :$src1),
"shl{b}\t{%cl, $dst|$dst, CL}",
- [(set GR8:$dst, (shl GR8:$src, CL))]>;
-def SHL16rCL : I<0xD3, MRM4r, (outs GR16:$dst), (ins GR16:$src),
+ [(set GR8:$dst, (shl GR8:$src1, CL))]>;
+def SHL16rCL : I<0xD3, MRM4r, (outs GR16:$dst), (ins GR16:$src1),
"shl{w}\t{%cl, $dst|$dst, CL}",
- [(set GR16:$dst, (shl GR16:$src, CL))]>, OpSize;
-def SHL32rCL : I<0xD3, MRM4r, (outs GR32:$dst), (ins GR32:$src),
+ [(set GR16:$dst, (shl GR16:$src1, CL))]>, OpSize;
+def SHL32rCL : I<0xD3, MRM4r, (outs GR32:$dst), (ins GR32:$src1),
"shl{l}\t{%cl, $dst|$dst, CL}",
- [(set GR32:$dst, (shl GR32:$src, CL))]>;
+ [(set GR32:$dst, (shl GR32:$src1, CL))]>;
} // Uses = [CL]
def SHL8ri : Ii8<0xC0, MRM4r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
"shl{b}\t{$src2, $dst|$dst, $src2}",
[(set GR8:$dst, (shl GR8:$src1, (i8 imm:$src2)))]>;
+
let isConvertibleToThreeAddress = 1 in { // Can transform into LEA.
def SHL16ri : Ii8<0xC1, MRM4r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$src2),
"shl{w}\t{$src2, $dst|$dst, $src2}",
} // isConvertibleToThreeAddress = 1
-let isTwoAddress = 0 in {
+let Constraints = "" in {
let Uses = [CL] in {
def SHL8mCL : I<0xD2, MRM4m, (outs), (ins i8mem :$dst),
"shl{b}\t{%cl, $dst|$dst, CL}",
def SHL32m1 : I<0xD1, MRM4m, (outs), (ins i32mem:$dst),
"shl{l}\t$dst",
[(store (shl (loadi32 addr:$dst), (i8 1)), addr:$dst)]>;
-}
+} // Constraints = ""
let Uses = [CL] in {
-def SHR8rCL : I<0xD2, MRM5r, (outs GR8 :$dst), (ins GR8 :$src),
+def SHR8rCL : I<0xD2, MRM5r, (outs GR8 :$dst), (ins GR8 :$src1),
"shr{b}\t{%cl, $dst|$dst, CL}",
- [(set GR8:$dst, (srl GR8:$src, CL))]>;
-def SHR16rCL : I<0xD3, MRM5r, (outs GR16:$dst), (ins GR16:$src),
+ [(set GR8:$dst, (srl GR8:$src1, CL))]>;
+def SHR16rCL : I<0xD3, MRM5r, (outs GR16:$dst), (ins GR16:$src1),
"shr{w}\t{%cl, $dst|$dst, CL}",
- [(set GR16:$dst, (srl GR16:$src, CL))]>, OpSize;
-def SHR32rCL : I<0xD3, MRM5r, (outs GR32:$dst), (ins GR32:$src),
+ [(set GR16:$dst, (srl GR16:$src1, CL))]>, OpSize;
+def SHR32rCL : I<0xD3, MRM5r, (outs GR32:$dst), (ins GR32:$src1),
"shr{l}\t{%cl, $dst|$dst, CL}",
- [(set GR32:$dst, (srl GR32:$src, CL))]>;
+ [(set GR32:$dst, (srl GR32:$src1, CL))]>;
}
def SHR8ri : Ii8<0xC0, MRM5r, (outs GR8:$dst), (ins GR8:$src1, i8imm:$src2),
"shr{l}\t$dst",
[(set GR32:$dst, (srl GR32:$src1, (i8 1)))]>;
-let isTwoAddress = 0 in {
+let Constraints = "" in {
let Uses = [CL] in {
def SHR8mCL : I<0xD2, MRM5m, (outs), (ins i8mem :$dst),
"shr{b}\t{%cl, $dst|$dst, CL}",
def SHR32m1 : I<0xD1, MRM5m, (outs), (ins i32mem:$dst),
"shr{l}\t$dst",
[(store (srl (loadi32 addr:$dst), (i8 1)), addr:$dst)]>;
-}
+} // Constraints = ""
let Uses = [CL] in {
-def SAR8rCL : I<0xD2, MRM7r, (outs GR8 :$dst), (ins GR8 :$src),
+def SAR8rCL : I<0xD2, MRM7r, (outs GR8 :$dst), (ins GR8 :$src1),
"sar{b}\t{%cl, $dst|$dst, CL}",
- [(set GR8:$dst, (sra GR8:$src, CL))]>;
-def SAR16rCL : I<0xD3, MRM7r, (outs GR16:$dst), (ins GR16:$src),
+ [(set GR8:$dst, (sra GR8:$src1, CL))]>;
+def SAR16rCL : I<0xD3, MRM7r, (outs GR16:$dst), (ins GR16:$src1),
"sar{w}\t{%cl, $dst|$dst, CL}",
- [(set GR16:$dst, (sra GR16:$src, CL))]>, OpSize;
-def SAR32rCL : I<0xD3, MRM7r, (outs GR32:$dst), (ins GR32:$src),
+ [(set GR16:$dst, (sra GR16:$src1, CL))]>, OpSize;
+def SAR32rCL : I<0xD3, MRM7r, (outs GR32:$dst), (ins GR32:$src1),
"sar{l}\t{%cl, $dst|$dst, CL}",
- [(set GR32:$dst, (sra GR32:$src, CL))]>;
+ [(set GR32:$dst, (sra GR32:$src1, CL))]>;
}
def SAR8ri : Ii8<0xC0, MRM7r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
"sar{l}\t$dst",
[(set GR32:$dst, (sra GR32:$src1, (i8 1)))]>;
-let isTwoAddress = 0 in {
+let Constraints = "" in {
let Uses = [CL] in {
def SAR8mCL : I<0xD2, MRM7m, (outs), (ins i8mem :$dst),
"sar{b}\t{%cl, $dst|$dst, CL}",
def SAR32m1 : I<0xD1, MRM7m, (outs), (ins i32mem:$dst),
"sar{l}\t$dst",
[(store (sra (loadi32 addr:$dst), (i8 1)), addr:$dst)]>;
-}
+} // Constraints = ""
// Rotate instructions
-def RCL8r1 : I<0xD0, MRM2r, (outs GR8:$dst), (ins GR8:$src),
+def RCL8r1 : I<0xD0, MRM2r, (outs GR8:$dst), (ins GR8:$src1),
"rcl{b}\t{1, $dst|$dst, 1}", []>;
let Uses = [CL] in {
-def RCL8rCL : I<0xD2, MRM2r, (outs GR8:$dst), (ins GR8:$src),
+def RCL8rCL : I<0xD2, MRM2r, (outs GR8:$dst), (ins GR8:$src1),
"rcl{b}\t{%cl, $dst|$dst, CL}", []>;
}
-def RCL8ri : Ii8<0xC0, MRM2r, (outs GR8:$dst), (ins GR8:$src, i8imm:$cnt),
+def RCL8ri : Ii8<0xC0, MRM2r, (outs GR8:$dst), (ins GR8:$src1, i8imm:$cnt),
"rcl{b}\t{$cnt, $dst|$dst, $cnt}", []>;
-def RCL16r1 : I<0xD1, MRM2r, (outs GR16:$dst), (ins GR16:$src),
+def RCL16r1 : I<0xD1, MRM2r, (outs GR16:$dst), (ins GR16:$src1),
"rcl{w}\t{1, $dst|$dst, 1}", []>, OpSize;
let Uses = [CL] in {
-def RCL16rCL : I<0xD3, MRM2r, (outs GR16:$dst), (ins GR16:$src),
+def RCL16rCL : I<0xD3, MRM2r, (outs GR16:$dst), (ins GR16:$src1),
"rcl{w}\t{%cl, $dst|$dst, CL}", []>, OpSize;
}
-def RCL16ri : Ii8<0xC1, MRM2r, (outs GR16:$dst), (ins GR16:$src, i8imm:$cnt),
+def RCL16ri : Ii8<0xC1, MRM2r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$cnt),
"rcl{w}\t{$cnt, $dst|$dst, $cnt}", []>, OpSize;
-def RCL32r1 : I<0xD1, MRM2r, (outs GR32:$dst), (ins GR32:$src),
+def RCL32r1 : I<0xD1, MRM2r, (outs GR32:$dst), (ins GR32:$src1),
"rcl{l}\t{1, $dst|$dst, 1}", []>;
let Uses = [CL] in {
-def RCL32rCL : I<0xD3, MRM2r, (outs GR32:$dst), (ins GR32:$src),
+def RCL32rCL : I<0xD3, MRM2r, (outs GR32:$dst), (ins GR32:$src1),
"rcl{l}\t{%cl, $dst|$dst, CL}", []>;
}
-def RCL32ri : Ii8<0xC1, MRM2r, (outs GR32:$dst), (ins GR32:$src, i8imm:$cnt),
+def RCL32ri : Ii8<0xC1, MRM2r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$cnt),
"rcl{l}\t{$cnt, $dst|$dst, $cnt}", []>;
-def RCR8r1 : I<0xD0, MRM3r, (outs GR8:$dst), (ins GR8:$src),
+def RCR8r1 : I<0xD0, MRM3r, (outs GR8:$dst), (ins GR8:$src1),
"rcr{b}\t{1, $dst|$dst, 1}", []>;
let Uses = [CL] in {
-def RCR8rCL : I<0xD2, MRM3r, (outs GR8:$dst), (ins GR8:$src),
+def RCR8rCL : I<0xD2, MRM3r, (outs GR8:$dst), (ins GR8:$src1),
"rcr{b}\t{%cl, $dst|$dst, CL}", []>;
}
-def RCR8ri : Ii8<0xC0, MRM3r, (outs GR8:$dst), (ins GR8:$src, i8imm:$cnt),
+def RCR8ri : Ii8<0xC0, MRM3r, (outs GR8:$dst), (ins GR8:$src1, i8imm:$cnt),
"rcr{b}\t{$cnt, $dst|$dst, $cnt}", []>;
-def RCR16r1 : I<0xD1, MRM3r, (outs GR16:$dst), (ins GR16:$src),
+def RCR16r1 : I<0xD1, MRM3r, (outs GR16:$dst), (ins GR16:$src1),
"rcr{w}\t{1, $dst|$dst, 1}", []>, OpSize;
let Uses = [CL] in {
-def RCR16rCL : I<0xD3, MRM3r, (outs GR16:$dst), (ins GR16:$src),
+def RCR16rCL : I<0xD3, MRM3r, (outs GR16:$dst), (ins GR16:$src1),
"rcr{w}\t{%cl, $dst|$dst, CL}", []>, OpSize;
}
-def RCR16ri : Ii8<0xC1, MRM3r, (outs GR16:$dst), (ins GR16:$src, i8imm:$cnt),
+def RCR16ri : Ii8<0xC1, MRM3r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$cnt),
"rcr{w}\t{$cnt, $dst|$dst, $cnt}", []>, OpSize;
-def RCR32r1 : I<0xD1, MRM3r, (outs GR32:$dst), (ins GR32:$src),
+def RCR32r1 : I<0xD1, MRM3r, (outs GR32:$dst), (ins GR32:$src1),
"rcr{l}\t{1, $dst|$dst, 1}", []>;
let Uses = [CL] in {
-def RCR32rCL : I<0xD3, MRM3r, (outs GR32:$dst), (ins GR32:$src),
+def RCR32rCL : I<0xD3, MRM3r, (outs GR32:$dst), (ins GR32:$src1),
"rcr{l}\t{%cl, $dst|$dst, CL}", []>;
}
-def RCR32ri : Ii8<0xC1, MRM3r, (outs GR32:$dst), (ins GR32:$src, i8imm:$cnt),
+def RCR32ri : Ii8<0xC1, MRM3r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$cnt),
"rcr{l}\t{$cnt, $dst|$dst, $cnt}", []>;
-let isTwoAddress = 0 in {
+let Constraints = "" in {
def RCL8m1 : I<0xD0, MRM2m, (outs), (ins i8mem:$dst),
"rcl{b}\t{1, $dst|$dst, 1}", []>;
def RCL8mi : Ii8<0xC0, MRM2m, (outs), (ins i8mem:$dst, i8imm:$cnt),
def RCR32mCL : I<0xD3, MRM3m, (outs), (ins i32mem:$dst),
"rcr{l}\t{%cl, $dst|$dst, CL}", []>;
}
-}
+} // Constraints = ""
// FIXME: provide shorter instructions when imm8 == 1
let Uses = [CL] in {
-def ROL8rCL : I<0xD2, MRM0r, (outs GR8 :$dst), (ins GR8 :$src),
+def ROL8rCL : I<0xD2, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1),
"rol{b}\t{%cl, $dst|$dst, CL}",
- [(set GR8:$dst, (rotl GR8:$src, CL))]>;
-def ROL16rCL : I<0xD3, MRM0r, (outs GR16:$dst), (ins GR16:$src),
+ [(set GR8:$dst, (rotl GR8:$src1, CL))]>;
+def ROL16rCL : I<0xD3, MRM0r, (outs GR16:$dst), (ins GR16:$src1),
"rol{w}\t{%cl, $dst|$dst, CL}",
- [(set GR16:$dst, (rotl GR16:$src, CL))]>, OpSize;
-def ROL32rCL : I<0xD3, MRM0r, (outs GR32:$dst), (ins GR32:$src),
+ [(set GR16:$dst, (rotl GR16:$src1, CL))]>, OpSize;
+def ROL32rCL : I<0xD3, MRM0r, (outs GR32:$dst), (ins GR32:$src1),
"rol{l}\t{%cl, $dst|$dst, CL}",
- [(set GR32:$dst, (rotl GR32:$src, CL))]>;
+ [(set GR32:$dst, (rotl GR32:$src1, CL))]>;
}
def ROL8ri : Ii8<0xC0, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
"rol{l}\t$dst",
[(set GR32:$dst, (rotl GR32:$src1, (i8 1)))]>;
-let isTwoAddress = 0 in {
+let Constraints = "" in {
let Uses = [CL] in {
def ROL8mCL : I<0xD2, MRM0m, (outs), (ins i8mem :$dst),
"rol{b}\t{%cl, $dst|$dst, CL}",
def ROL32m1 : I<0xD1, MRM0m, (outs), (ins i32mem:$dst),
"rol{l}\t$dst",
[(store (rotl (loadi32 addr:$dst), (i8 1)), addr:$dst)]>;
-}
+} // Constraints = ""
let Uses = [CL] in {
-def ROR8rCL : I<0xD2, MRM1r, (outs GR8 :$dst), (ins GR8 :$src),
+def ROR8rCL : I<0xD2, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1),
"ror{b}\t{%cl, $dst|$dst, CL}",
- [(set GR8:$dst, (rotr GR8:$src, CL))]>;
-def ROR16rCL : I<0xD3, MRM1r, (outs GR16:$dst), (ins GR16:$src),
+ [(set GR8:$dst, (rotr GR8:$src1, CL))]>;
+def ROR16rCL : I<0xD3, MRM1r, (outs GR16:$dst), (ins GR16:$src1),
"ror{w}\t{%cl, $dst|$dst, CL}",
- [(set GR16:$dst, (rotr GR16:$src, CL))]>, OpSize;
-def ROR32rCL : I<0xD3, MRM1r, (outs GR32:$dst), (ins GR32:$src),
+ [(set GR16:$dst, (rotr GR16:$src1, CL))]>, OpSize;
+def ROR32rCL : I<0xD3, MRM1r, (outs GR32:$dst), (ins GR32:$src1),
"ror{l}\t{%cl, $dst|$dst, CL}",
- [(set GR32:$dst, (rotr GR32:$src, CL))]>;
+ [(set GR32:$dst, (rotr GR32:$src1, CL))]>;
}
def ROR8ri : Ii8<0xC0, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
"ror{l}\t$dst",
[(set GR32:$dst, (rotr GR32:$src1, (i8 1)))]>;
-let isTwoAddress = 0 in {
+let Constraints = "" in {
let Uses = [CL] in {
def ROR8mCL : I<0xD2, MRM1m, (outs), (ins i8mem :$dst),
"ror{b}\t{%cl, $dst|$dst, CL}",
def ROR32m1 : I<0xD1, MRM1m, (outs), (ins i32mem:$dst),
"ror{l}\t$dst",
[(store (rotr (loadi32 addr:$dst), (i8 1)), addr:$dst)]>;
-}
-
+} // Constraints = ""
// Double shift instructions (generalizations of rotate)
TB, OpSize;
}
-let isTwoAddress = 0 in {
+let Constraints = "" in {
let Uses = [CL] in {
def SHLD32mrCL : I<0xA5, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src2),
"shld{l}\t{%cl, $src2, $dst|$dst, $src2, CL}",
[(store (X86shrd (loadi16 addr:$dst), GR16:$src2,
(i8 imm:$src3)), addr:$dst)]>,
TB, OpSize;
-}
+} // Constraints = ""
} // Defs = [EFLAGS]
(X86add_flag GR32:$src1, i32immSExt8:$src2))]>;
}
-let isTwoAddress = 0 in {
+let Constraints = "" in {
// Memory-Register Addition
def ADD8mr : I<0x00, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src2),
"add{b}\t{$src2, $dst|$dst, $src2}",
"add{w}\t{$src, %ax|%ax, $src}", []>, OpSize;
def ADD32i32 : Ii32<0x05, RawFrm, (outs), (ins i32imm:$src),
"add{l}\t{$src, %eax|%eax, $src}", []>;
-}
+} // Constraints = ""
let Uses = [EFLAGS] in {
let isCommutable = 1 in { // X = ADC Y, Z --> X = ADC Z, Y
[(set GR32:$dst, (adde GR32:$src1, GR32:$src2))]>;
}
+let isCodeGenOnly = 1 in {
def ADC8rr_REV : I<0x12, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src1, GR8:$src2),
"adc{b}\t{$src2, $dst|$dst, $src2}", []>;
def ADC16rr_REV : I<0x13, MRMSrcReg, (outs GR16:$dst),
def ADC32rr_REV : I<0x13, MRMSrcReg, (outs GR32:$dst),
(ins GR32:$src1, GR32:$src2),
"adc{l}\t{$src2, $dst|$dst, $src2}", []>;
+}
def ADC8rm : I<0x12, MRMSrcMem , (outs GR8:$dst),
(ins GR8:$src1, i8mem:$src2),
"adc{l}\t{$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (adde GR32:$src1, i32immSExt8:$src2))]>;
-let isTwoAddress = 0 in {
+let Constraints = "" in {
def ADC8mr : I<0x10, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src2),
"adc{b}\t{$src2, $dst|$dst, $src2}",
[(store (adde (load addr:$dst), GR8:$src2), addr:$dst)]>;
"adc{w}\t{$src, %ax|%ax, $src}", []>, OpSize;
def ADC32i32 : Ii32<0x15, RawFrm, (outs), (ins i32imm:$src),
"adc{l}\t{$src, %eax|%eax, $src}", []>;
-}
+} // Constraints = ""
} // Uses = [EFLAGS]
// Register-Register Subtraction
[(set GR32:$dst, EFLAGS,
(X86sub_flag GR32:$src1, GR32:$src2))]>;
+let isCodeGenOnly = 1 in {
def SUB8rr_REV : I<0x2A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src1, GR8:$src2),
"sub{b}\t{$src2, $dst|$dst, $src2}", []>;
def SUB16rr_REV : I<0x2B, MRMSrcReg, (outs GR16:$dst),
def SUB32rr_REV : I<0x2B, MRMSrcReg, (outs GR32:$dst),
(ins GR32:$src1, GR32:$src2),
"sub{l}\t{$src2, $dst|$dst, $src2}", []>;
+}
// Register-Memory Subtraction
def SUB8rm : I<0x2A, MRMSrcMem, (outs GR8 :$dst),
[(set GR32:$dst, EFLAGS,
(X86sub_flag GR32:$src1, i32immSExt8:$src2))]>;
-let isTwoAddress = 0 in {
+let Constraints = "" in {
// Memory-Register Subtraction
def SUB8mr : I<0x28, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src2),
"sub{b}\t{$src2, $dst|$dst, $src2}",
"sub{w}\t{$src, %ax|%ax, $src}", []>, OpSize;
def SUB32i32 : Ii32<0x2D, RawFrm, (outs), (ins i32imm:$src),
"sub{l}\t{$src, %eax|%eax, $src}", []>;
-}
+} // Constraints = ""
let Uses = [EFLAGS] in {
def SBB8rr : I<0x18, MRMDestReg, (outs GR8:$dst),
"sbb{l}\t{$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (sube GR32:$src1, GR32:$src2))]>;
-let isTwoAddress = 0 in {
+let Constraints = "" in {
def SBB8mr : I<0x18, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src2),
"sbb{b}\t{$src2, $dst|$dst, $src2}",
[(store (sube (load addr:$dst), GR8:$src2), addr:$dst)]>;
"sbb{w}\t{$src, %ax|%ax, $src}", []>, OpSize;
def SBB32i32 : Ii32<0x1D, RawFrm, (outs), (ins i32imm:$src),
"sbb{l}\t{$src, %eax|%eax, $src}", []>;
-}
+} // Constraints = ""
+let isCodeGenOnly = 1 in {
def SBB8rr_REV : I<0x1A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src1, GR8:$src2),
"sbb{b}\t{$src2, $dst|$dst, $src2}", []>;
def SBB16rr_REV : I<0x1B, MRMSrcReg, (outs GR16:$dst),
def SBB32rr_REV : I<0x1B, MRMSrcReg, (outs GR32:$dst),
(ins GR32:$src1, GR32:$src2),
"sbb{l}\t{$src2, $dst|$dst, $src2}", []>;
+}
def SBB8rm : I<0x1A, MRMSrcMem, (outs GR8:$dst), (ins GR8:$src1, i8mem:$src2),
"sbb{b}\t{$src2, $dst|$dst, $src2}",
// Thread Local Storage Instructions
//
+// ELF TLS Support
// All calls clobber the non-callee saved registers. ESP is marked as
// a use to prevent stack-pointer assignments that appear immediately
// before calls from potentially appearing dead.
XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7,
XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15, EFLAGS],
Uses = [ESP] in
-def TLS_addr32 : I<0, Pseudo, (outs), (ins lea32mem:$sym),
+def TLS_addr32 : I<0, Pseudo, (outs), (ins i32mem:$sym),
"leal\t$sym, %eax; "
"call\t___tls_get_addr@PLT",
[(X86tlsaddr tls32addr:$sym)]>,
Requires<[In32BitMode]>;
+// Darwin TLS Support
+// For i386, the address of the thunk is passed on the stack, on return the
+// address of the variable is in %eax. %ecx is trashed during the function
+// call. All other registers are preserved.
+let Defs = [EAX, ECX],
+ Uses = [ESP],
+ usesCustomInserter = 1 in
+def TLSCall_32 : I<0, Pseudo, (outs), (ins i32mem:$sym),
+ "# TLSCall_32",
+ [(X86TLSCall addr:$sym)]>,
+ Requires<[In32BitMode]>;
+
let AddedComplexity = 5, isCodeGenOnly = 1 in
def GS_MOV32rm : I<0x8B, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
"movl\t%gs:$src, $dst",
// Atomic support
//
+// Memory barriers
+let hasSideEffects = 1 in {
+def Int_MemBarrier : I<0, Pseudo, (outs), (ins),
+ "#MEMBARRIER",
+ [(X86MemBarrier)]>, Requires<[HasSSE2]>;
+
+// TODO: Get this to fold the constant into the instruction.
+let Uses = [ESP] in
+def Int_MemBarrierNoSSE : I<0x0B, Pseudo, (outs), (ins GR32:$zero),
+ "lock\n\t"
+ "or{l}\t{$zero, (%esp)|(%esp), $zero}",
+ [(X86MemBarrierNoSSE GR32:$zero)]>, LOCK;
+}
+
// Atomic swap. These are just normal xchg instructions. But since a memory
// operand is referenced, the atomicity is ensured.
let Constraints = "$val = $dst" in {
def XADD32rr : I<0xC1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
"xadd{l}\t{$src, $dst|$dst, $src}", []>, TB;
+let mayLoad = 1, mayStore = 1 in {
def XADD8rm : I<0xC0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
"xadd{b}\t{$src, $dst|$dst, $src}", []>, TB;
def XADD16rm : I<0xC1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
"xadd{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
def XADD32rm : I<0xC1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
"xadd{l}\t{$src, $dst|$dst, $src}", []>, TB;
+}
def CMPXCHG8rr : I<0xB0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
"cmpxchg{b}\t{$src, $dst|$dst, $src}", []>, TB;
def CMPXCHG32rr : I<0xB1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
"cmpxchg{l}\t{$src, $dst|$dst, $src}", []>, TB;
+let mayLoad = 1, mayStore = 1 in {
def CMPXCHG8rm : I<0xB0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
"cmpxchg{b}\t{$src, $dst|$dst, $src}", []>, TB;
def CMPXCHG16rm : I<0xB1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
"cmpxchg{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
def CMPXCHG32rm : I<0xB1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
"cmpxchg{l}\t{$src, $dst|$dst, $src}", []>, TB;
+}
let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX] in
def CMPXCHG8B : I<0xC7, MRM1m, (outs), (ins i64mem:$dst),
// Optimized codegen when the non-memory output is not used.
// FIXME: Use normal add / sub instructions and add lock prefix dynamically.
-let Defs = [EFLAGS] in {
+let Defs = [EFLAGS], mayLoad = 1, mayStore = 1 in {
def LOCK_ADD8mr : I<0x00, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src2),
"lock\n\t"
"add{b}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
// Except for i16 -> i32 since isel expect i16 ops to be promoted to i32.
def : Pat<(i32 (anyext GR16:$src)),
- (INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR16:$src, x86_subreg_16bit)>;
+ (INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR16:$src, sub_16bit)>;
//===----------------------------------------------------------------------===//
// r & (2^16-1) ==> movz
def : Pat<(and GR32:$src1, 0xffff),
- (MOVZX32rr16 (EXTRACT_SUBREG GR32:$src1, x86_subreg_16bit))>;
+ (MOVZX32rr16 (EXTRACT_SUBREG GR32:$src1, sub_16bit))>;
// r & (2^8-1) ==> movz
def : Pat<(and GR32:$src1, 0xff),
(MOVZX32rr8 (EXTRACT_SUBREG (i32 (COPY_TO_REGCLASS GR32:$src1,
GR32_ABCD)),
- x86_subreg_8bit))>,
+ sub_8bit))>,
Requires<[In32BitMode]>;
// r & (2^8-1) ==> movz
def : Pat<(and GR16:$src1, 0xff),
(MOVZX16rr8 (EXTRACT_SUBREG (i16 (COPY_TO_REGCLASS GR16:$src1,
GR16_ABCD)),
- x86_subreg_8bit))>,
+ sub_8bit))>,
Requires<[In32BitMode]>;
// sext_inreg patterns
def : Pat<(sext_inreg GR32:$src, i16),
- (MOVSX32rr16 (EXTRACT_SUBREG GR32:$src, x86_subreg_16bit))>;
+ (MOVSX32rr16 (EXTRACT_SUBREG GR32:$src, sub_16bit))>;
def : Pat<(sext_inreg GR32:$src, i8),
(MOVSX32rr8 (EXTRACT_SUBREG (i32 (COPY_TO_REGCLASS GR32:$src,
GR32_ABCD)),
- x86_subreg_8bit))>,
+ sub_8bit))>,
Requires<[In32BitMode]>;
def : Pat<(sext_inreg GR16:$src, i8),
(MOVSX16rr8 (EXTRACT_SUBREG (i16 (COPY_TO_REGCLASS GR16:$src,
GR16_ABCD)),
- x86_subreg_8bit))>,
+ sub_8bit))>,
Requires<[In32BitMode]>;
// trunc patterns
def : Pat<(i16 (trunc GR32:$src)),
- (EXTRACT_SUBREG GR32:$src, x86_subreg_16bit)>;
+ (EXTRACT_SUBREG GR32:$src, sub_16bit)>;
def : Pat<(i8 (trunc GR32:$src)),
(EXTRACT_SUBREG (i32 (COPY_TO_REGCLASS GR32:$src, GR32_ABCD)),
- x86_subreg_8bit)>,
+ sub_8bit)>,
Requires<[In32BitMode]>;
def : Pat<(i8 (trunc GR16:$src)),
(EXTRACT_SUBREG (i16 (COPY_TO_REGCLASS GR16:$src, GR16_ABCD)),
- x86_subreg_8bit)>,
+ sub_8bit)>,
Requires<[In32BitMode]>;
// h-register tricks
def : Pat<(i8 (trunc (srl_su GR16:$src, (i8 8)))),
(EXTRACT_SUBREG (i16 (COPY_TO_REGCLASS GR16:$src, GR16_ABCD)),
- x86_subreg_8bit_hi)>,
+ sub_8bit_hi)>,
Requires<[In32BitMode]>;
def : Pat<(i8 (trunc (srl_su GR32:$src, (i8 8)))),
(EXTRACT_SUBREG (i32 (COPY_TO_REGCLASS GR32:$src, GR32_ABCD)),
- x86_subreg_8bit_hi)>,
+ sub_8bit_hi)>,
Requires<[In32BitMode]>;
def : Pat<(srl GR16:$src, (i8 8)),
(EXTRACT_SUBREG
(MOVZX32rr8
(EXTRACT_SUBREG (i16 (COPY_TO_REGCLASS GR16:$src, GR16_ABCD)),
- x86_subreg_8bit_hi)),
- x86_subreg_16bit)>,
+ sub_8bit_hi)),
+ sub_16bit)>,
Requires<[In32BitMode]>;
def : Pat<(i32 (zext (srl_su GR16:$src, (i8 8)))),
(MOVZX32rr8 (EXTRACT_SUBREG (i16 (COPY_TO_REGCLASS GR16:$src,
GR16_ABCD)),
- x86_subreg_8bit_hi))>,
+ sub_8bit_hi))>,
Requires<[In32BitMode]>;
def : Pat<(i32 (anyext (srl_su GR16:$src, (i8 8)))),
(MOVZX32rr8 (EXTRACT_SUBREG (i16 (COPY_TO_REGCLASS GR16:$src,
GR16_ABCD)),
- x86_subreg_8bit_hi))>,
+ sub_8bit_hi))>,
Requires<[In32BitMode]>;
def : Pat<(and (srl_su GR32:$src, (i8 8)), (i32 255)),
(MOVZX32rr8 (EXTRACT_SUBREG (i32 (COPY_TO_REGCLASS GR32:$src,
GR32_ABCD)),
- x86_subreg_8bit_hi))>,
+ sub_8bit_hi))>,
Requires<[In32BitMode]>;
def : Pat<(srl (and_su GR32:$src, 0xff00), (i8 8)),
(MOVZX32rr8 (EXTRACT_SUBREG (i32 (COPY_TO_REGCLASS GR32:$src,
GR32_ABCD)),
- x86_subreg_8bit_hi))>,
+ sub_8bit_hi))>,
Requires<[In32BitMode]>;
// (shl x, 1) ==> (add x, x)
// Patterns for nodes that do not produce flags, for instructions that do.
// Increment reg.
-def : Pat<(add GR8:$src , 1), (INC8r GR8:$src)>;
-def : Pat<(add GR16:$src, 1), (INC16r GR16:$src)>, Requires<[In32BitMode]>;
-def : Pat<(add GR32:$src, 1), (INC32r GR32:$src)>, Requires<[In32BitMode]>;
+def : Pat<(add GR8:$src1 , 1), (INC8r GR8:$src1)>;
+def : Pat<(add GR16:$src1, 1), (INC16r GR16:$src1)>, Requires<[In32BitMode]>;
+def : Pat<(add GR32:$src1, 1), (INC32r GR32:$src1)>, Requires<[In32BitMode]>;
// Decrement reg.
-def : Pat<(add GR8:$src , -1), (DEC8r GR8:$src)>;
-def : Pat<(add GR16:$src, -1), (DEC16r GR16:$src)>, Requires<[In32BitMode]>;
-def : Pat<(add GR32:$src, -1), (DEC32r GR32:$src)>, Requires<[In32BitMode]>;
+def : Pat<(add GR8:$src1 , -1), (DEC8r GR8:$src1)>;
+def : Pat<(add GR16:$src1, -1), (DEC16r GR16:$src1)>, Requires<[In32BitMode]>;
+def : Pat<(add GR32:$src1, -1), (DEC32r GR32:$src1)>, Requires<[In32BitMode]>;
// or reg/reg.
def : Pat<(or GR8 :$src1, GR8 :$src2), (OR8rr GR8 :$src1, GR8 :$src2)>;