1 //===-- X86InstrCMovSetCC.td - Conditional Move and SetCC --*- tablegen -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file describes the X86 conditional move and set on condition
13 //===----------------------------------------------------------------------===//
17 multiclass CMOV<bits<8> opc, string Mnemonic, PatLeaf CondNode> {
18 let Uses = [EFLAGS], Predicates = [HasCMov], Constraints = "$src1 = $dst",
19 isCommutable = 1, SchedRW = [WriteALU] in {
21 : I<opc, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
22 !strconcat(Mnemonic, "{w}\t{$src2, $dst|$dst, $src2}"),
24 (X86cmov GR16:$src1, GR16:$src2, CondNode, EFLAGS))],
25 IIC_CMOV16_RR>, TB, OpSize16;
27 : I<opc, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
28 !strconcat(Mnemonic, "{l}\t{$src2, $dst|$dst, $src2}"),
30 (X86cmov GR32:$src1, GR32:$src2, CondNode, EFLAGS))],
31 IIC_CMOV32_RR>, TB, OpSize32;
33 :RI<opc, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src1, GR64:$src2),
34 !strconcat(Mnemonic, "{q}\t{$src2, $dst|$dst, $src2}"),
36 (X86cmov GR64:$src1, GR64:$src2, CondNode, EFLAGS))],
40 let Uses = [EFLAGS], Predicates = [HasCMov], Constraints = "$src1 = $dst",
41 SchedRW = [WriteALULd, ReadAfterLd] in {
43 : I<opc, MRMSrcMem, (outs GR16:$dst), (ins GR16:$src1, i16mem:$src2),
44 !strconcat(Mnemonic, "{w}\t{$src2, $dst|$dst, $src2}"),
45 [(set GR16:$dst, (X86cmov GR16:$src1, (loadi16 addr:$src2),
46 CondNode, EFLAGS))], IIC_CMOV16_RM>,
49 : I<opc, MRMSrcMem, (outs GR32:$dst), (ins GR32:$src1, i32mem:$src2),
50 !strconcat(Mnemonic, "{l}\t{$src2, $dst|$dst, $src2}"),
51 [(set GR32:$dst, (X86cmov GR32:$src1, (loadi32 addr:$src2),
52 CondNode, EFLAGS))], IIC_CMOV32_RM>,
55 :RI<opc, MRMSrcMem, (outs GR64:$dst), (ins GR64:$src1, i64mem:$src2),
56 !strconcat(Mnemonic, "{q}\t{$src2, $dst|$dst, $src2}"),
57 [(set GR64:$dst, (X86cmov GR64:$src1, (loadi64 addr:$src2),
58 CondNode, EFLAGS))], IIC_CMOV32_RM>, TB;
59 } // Uses = [EFLAGS], Predicates = [HasCMov], Constraints = "$src1 = $dst"
64 defm CMOVO : CMOV<0x40, "cmovo" , X86_COND_O>;
65 defm CMOVNO : CMOV<0x41, "cmovno", X86_COND_NO>;
66 defm CMOVB : CMOV<0x42, "cmovb" , X86_COND_B>;
67 defm CMOVAE : CMOV<0x43, "cmovae", X86_COND_AE>;
68 defm CMOVE : CMOV<0x44, "cmove" , X86_COND_E>;
69 defm CMOVNE : CMOV<0x45, "cmovne", X86_COND_NE>;
70 defm CMOVBE : CMOV<0x46, "cmovbe", X86_COND_BE>;
71 defm CMOVA : CMOV<0x47, "cmova" , X86_COND_A>;
72 defm CMOVS : CMOV<0x48, "cmovs" , X86_COND_S>;
73 defm CMOVNS : CMOV<0x49, "cmovns", X86_COND_NS>;
74 defm CMOVP : CMOV<0x4A, "cmovp" , X86_COND_P>;
75 defm CMOVNP : CMOV<0x4B, "cmovnp", X86_COND_NP>;
76 defm CMOVL : CMOV<0x4C, "cmovl" , X86_COND_L>;
77 defm CMOVGE : CMOV<0x4D, "cmovge", X86_COND_GE>;
78 defm CMOVLE : CMOV<0x4E, "cmovle", X86_COND_LE>;
79 defm CMOVG : CMOV<0x4F, "cmovg" , X86_COND_G>;
82 // SetCC instructions.
83 multiclass SETCC<bits<8> opc, string Mnemonic, PatLeaf OpNode> {
84 let Uses = [EFLAGS] in {
85 def r : I<opc, MRMXr, (outs GR8:$dst), (ins),
86 !strconcat(Mnemonic, "\t$dst"),
87 [(set GR8:$dst, (X86setcc OpNode, EFLAGS))],
88 IIC_SET_R>, TB, Sched<[WriteALU]>;
89 def m : I<opc, MRMXm, (outs), (ins i8mem:$dst),
90 !strconcat(Mnemonic, "\t$dst"),
91 [(store (X86setcc OpNode, EFLAGS), addr:$dst)],
92 IIC_SET_M>, TB, Sched<[WriteALU, WriteStore]>;
96 defm SETO : SETCC<0x90, "seto", X86_COND_O>; // is overflow bit set
97 defm SETNO : SETCC<0x91, "setno", X86_COND_NO>; // is overflow bit not set
98 defm SETB : SETCC<0x92, "setb", X86_COND_B>; // unsigned less than
99 defm SETAE : SETCC<0x93, "setae", X86_COND_AE>; // unsigned greater or equal
100 defm SETE : SETCC<0x94, "sete", X86_COND_E>; // equal to
101 defm SETNE : SETCC<0x95, "setne", X86_COND_NE>; // not equal to
102 defm SETBE : SETCC<0x96, "setbe", X86_COND_BE>; // unsigned less than or equal
103 defm SETA : SETCC<0x97, "seta", X86_COND_A>; // unsigned greater than
104 defm SETS : SETCC<0x98, "sets", X86_COND_S>; // is signed bit set
105 defm SETNS : SETCC<0x99, "setns", X86_COND_NS>; // is not signed
106 defm SETP : SETCC<0x9A, "setp", X86_COND_P>; // is parity bit set
107 defm SETNP : SETCC<0x9B, "setnp", X86_COND_NP>; // is parity bit not set
108 defm SETL : SETCC<0x9C, "setl", X86_COND_L>; // signed less than
109 defm SETGE : SETCC<0x9D, "setge", X86_COND_GE>; // signed greater or equal
110 defm SETLE : SETCC<0x9E, "setle", X86_COND_LE>; // signed less than or equal
111 defm SETG : SETCC<0x9F, "setg", X86_COND_G>; // signed greater than