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 //===----------------------------------------------------------------------===//
16 // SetCC instructions.
17 multiclass CMOV<bits<8> opc, string Mnemonic, PatLeaf CondNode> {
18 let Uses = [EFLAGS], Predicates = [HasCMov], Constraints = "$src1 = $dst",
21 : I<opc, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
22 !strconcat(Mnemonic, "{w}\t{$src2, $dst|$dst, $src2}"),
24 (X86cmov GR16:$src1, GR16:$src2, CondNode, EFLAGS))]>,TB,OpSize;
26 : I<opc, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
27 !strconcat(Mnemonic, "{l}\t{$src2, $dst|$dst, $src2}"),
29 (X86cmov GR32:$src1, GR32:$src2, CondNode, EFLAGS))]>, TB;
31 :RI<opc, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src1, GR64:$src2),
32 !strconcat(Mnemonic, "{q}\t{$src2, $dst|$dst, $src2}"),
34 (X86cmov GR64:$src1, GR64:$src2, CondNode, EFLAGS))]>, TB;
37 let Uses = [EFLAGS], Predicates = [HasCMov], Constraints = "$src1 = $dst" in {
39 : I<opc, MRMSrcMem, (outs GR16:$dst), (ins GR16:$src1, i16mem:$src2),
40 !strconcat(Mnemonic, "{w}\t{$src2, $dst|$dst, $src2}"),
41 [(set GR16:$dst, (X86cmov GR16:$src1, (loadi16 addr:$src2),
42 CondNode, EFLAGS))]>, TB, OpSize;
44 : I<opc, MRMSrcMem, (outs GR32:$dst), (ins GR32:$src1, i32mem:$src2),
45 !strconcat(Mnemonic, "{l}\t{$src2, $dst|$dst, $src2}"),
46 [(set GR32:$dst, (X86cmov GR32:$src1, (loadi32 addr:$src2),
47 CondNode, EFLAGS))]>, TB;
49 :RI<opc, MRMSrcMem, (outs GR64:$dst), (ins GR64:$src1, i64mem:$src2),
50 !strconcat(Mnemonic, "{q}\t{$src2, $dst|$dst, $src2}"),
51 [(set GR64:$dst, (X86cmov GR64:$src1, (loadi64 addr:$src2),
52 CondNode, EFLAGS))]>, TB;
53 } // Uses = [EFLAGS], Predicates = [HasCMov], Constraints = "$src1 = $dst"
58 defm CMOVO : CMOV<0x40, "cmovo" , X86_COND_O>;
59 defm CMOVNO : CMOV<0x41, "cmovno", X86_COND_NO>;
60 defm CMOVB : CMOV<0x42, "cmovb" , X86_COND_B>;
61 defm CMOVAE : CMOV<0x43, "cmovae", X86_COND_AE>;
62 defm CMOVE : CMOV<0x44, "cmove" , X86_COND_E>;
63 defm CMOVNE : CMOV<0x45, "cmovne", X86_COND_NE>;
64 defm CMOVBE : CMOV<0x46, "cmovbe", X86_COND_BE>;
65 defm CMOVA : CMOV<0x47, "cmova" , X86_COND_A>;
66 defm CMOVS : CMOV<0x48, "cmovs" , X86_COND_S>;
67 defm CMOVNS : CMOV<0x49, "cmovns", X86_COND_NS>;
68 defm CMOVP : CMOV<0x4A, "cmovp" , X86_COND_P>;
69 defm CMOVNP : CMOV<0x4B, "cmovnp", X86_COND_NP>;
70 defm CMOVL : CMOV<0x4C, "cmovl" , X86_COND_L>;
71 defm CMOVGE : CMOV<0x4D, "cmovge", X86_COND_GE>;
72 defm CMOVLE : CMOV<0x4E, "cmovle", X86_COND_LE>;
73 defm CMOVG : CMOV<0x4F, "cmovg" , X86_COND_G>;
76 // SetCC instructions.
77 multiclass SETCC<bits<8> opc, string Mnemonic, PatLeaf OpNode> {
78 let Uses = [EFLAGS] in {
79 def r : I<opc, MRM0r, (outs GR8:$dst), (ins),
80 !strconcat(Mnemonic, "\t$dst"),
81 [(set GR8:$dst, (X86setcc OpNode, EFLAGS))]>, TB;
82 def m : I<opc, MRM0m, (outs), (ins i8mem:$dst),
83 !strconcat(Mnemonic, "\t$dst"),
84 [(store (X86setcc OpNode, EFLAGS), addr:$dst)]>, TB;
88 defm SETO : SETCC<0x90, "seto", X86_COND_O>; // is overflow bit set
89 defm SETNO : SETCC<0x91, "setno", X86_COND_NO>; // is overflow bit not set
90 defm SETB : SETCC<0x92, "setb", X86_COND_B>; // unsigned less than
91 defm SETAE : SETCC<0x93, "setae", X86_COND_AE>; // unsigned greater or equal
92 defm SETE : SETCC<0x94, "sete", X86_COND_E>; // equal to
93 defm SETNE : SETCC<0x95, "setne", X86_COND_NE>; // not equal to
94 defm SETBE : SETCC<0x96, "setbe", X86_COND_BE>; // unsigned less than or equal
95 defm SETA : SETCC<0x97, "seta", X86_COND_A>; // unsigned greater than
96 defm SETS : SETCC<0x98, "sets", X86_COND_S>; // is signed bit set
97 defm SETNS : SETCC<0x99, "setns", X86_COND_NS>; // is not signed
98 defm SETP : SETCC<0x9A, "setp", X86_COND_P>; // is parity bit set
99 defm SETNP : SETCC<0x9B, "setnp", X86_COND_NP>; // is parity bit not set
100 defm SETL : SETCC<0x9C, "setl", X86_COND_L>; // signed less than
101 defm SETGE : SETCC<0x9D, "setge", X86_COND_GE>; // signed greater or equal
102 defm SETLE : SETCC<0x9E, "setle", X86_COND_LE>; // signed less than or equal
103 defm SETG : SETCC<0x9F, "setg", X86_COND_G>; // signed greater than