1 //===-- X86InstrConditionalCompare.td - Conditional Compare --*- tablegen -*-==//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 // This file describes the X86 conditional compare instructions.
11 //===----------------------------------------------------------------------===//
13 class BinCondOp<bits<8> o, Format f, X86TypeInfo t, DAGOperand op1, DAGOperand op2, string m>
14 : ITy<o, f, t, (outs), (ins op1:$src1, op2:$src2, cflags:$dcf, ccode:$cond),
15 m#"${cond}", "$dcf\t{$src2, $src1|$src1, $src2}" , []>, T_MAP4, EVEX, Requires<[In64BitMode]> {
16 let isCodeGenOnly = 1;
17 let ForceDisassemble = 1;
20 let hasTwoConditionalOps = 1;
21 let ImmT = !if(!eq(op2, i16i8imm), Imm8,
22 !if(!eq(op2, i32i8imm), Imm8,
23 !if(!eq(op2, i64i8imm), Imm8,
24 !if(!eq(op2, i8imm), Imm8,
25 !if(!eq(op2, i16imm), Imm16,
26 !if(!eq(op2, i32imm), Imm32,
27 !if(!eq(op2, i64i32imm), Imm32S, NoImm)))))));
30 class Ccmp<bits<8> o, Format f, X86TypeInfo t, DAGOperand op1, DAGOperand op2>:
31 BinCondOp<o, f, t, op1, op2, "ccmp">;
33 class Ctest<bits<8> o, Format f, X86TypeInfo t, DAGOperand op1, DAGOperand op2>:
34 BinCondOp<o, f, t, op1, op2, "ctest">;
36 //===----------------------------------------------------------------------===//
39 let SchedRW = [WriteALU] in {
40 def CCMP8rr : Ccmp<0x38, MRMDestReg, Xi8, GR8, GR8>;
41 def CCMP16rr: Ccmp<0x39, MRMDestReg, Xi16, GR16, GR16>, PD;
42 def CCMP32rr: Ccmp<0x39, MRMDestReg, Xi32, GR32, GR32>;
43 def CCMP64rr: Ccmp<0x39, MRMDestReg, Xi64, GR64, GR64>;
44 def CCMP8rr_REV : Ccmp<0x3a, MRMSrcReg, Xi8, GR8, GR8>;
45 def CCMP16rr_REV: Ccmp<0x3b, MRMSrcReg, Xi16, GR16, GR16>, PD;
46 def CCMP32rr_REV: Ccmp<0x3b, MRMSrcReg, Xi32, GR32, GR32>;
47 def CCMP64rr_REV: Ccmp<0x3b, MRMSrcReg, Xi64, GR64, GR64>;
48 def CCMP16ri8: Ccmp<0x83, MRM7r, Xi16, GR16, i16i8imm>, PD;
49 def CCMP32ri8: Ccmp<0x83, MRM7r, Xi32, GR32, i32i8imm>;
50 def CCMP64ri8: Ccmp<0x83, MRM7r, Xi64, GR64, i64i8imm>;
52 def CCMP8ri : Ccmp<0x80, MRM7r, Xi8, GR8, i8imm>;
53 def CCMP16ri: Ccmp<0x81, MRM7r, Xi16, GR16, i16imm>, PD;
54 def CCMP32ri: Ccmp<0x81, MRM7r, Xi32, GR32, i32imm>;
55 def CCMP64ri32: Ccmp<0x81, MRM7r, Xi64, GR64, i64i32imm>;
59 let SchedRW = [WriteALU.Folded] in {
60 def CCMP16mi8: Ccmp<0x83, MRM7m, Xi16, i16mem, i16i8imm>, PD;
61 def CCMP32mi8: Ccmp<0x83, MRM7m, Xi32, i32mem, i32i8imm>;
62 def CCMP64mi8: Ccmp<0x83, MRM7m, Xi64, i64mem, i64i8imm>;
63 def CCMP8mi : Ccmp<0x80, MRM7m, Xi8, i8mem, i8imm>;
64 def CCMP16mi: Ccmp<0x81, MRM7m, Xi16, i16mem, i16imm>, PD;
65 def CCMP32mi: Ccmp<0x81, MRM7m, Xi32, i32mem, i32imm>;
66 def CCMP64mi32: Ccmp<0x81, MRM7m, Xi64, i64mem, i64i32imm>;
68 let SchedRW = [WriteALU.Folded, WriteALU.ReadAfterFold] in {
69 def CCMP8rm : Ccmp<0x3a, MRMSrcMem, Xi8, GR8, i8mem>;
70 def CCMP16rm: Ccmp<0x3b, MRMSrcMem, Xi16, GR16, i16mem>, PD;
71 def CCMP32rm: Ccmp<0x3b, MRMSrcMem, Xi32, GR32, i32mem>;
72 def CCMP64rm: Ccmp<0x3b, MRMSrcMem, Xi64, GR64, i64mem>;
74 def CCMP8mr : Ccmp<0x38, MRMDestMem, Xi8, i8mem, GR8>;
75 def CCMP16mr: Ccmp<0x39, MRMDestMem, Xi16, i16mem, GR16>, PD;
76 def CCMP32mr: Ccmp<0x39, MRMDestMem, Xi32, i32mem, GR32>;
77 def CCMP64mr: Ccmp<0x39, MRMDestMem, Xi64, i64mem, GR64>;
81 def : Pat<(X86ccmp GR8:$src1, GR8:$src2, timm:$dcf, timm:$cond, EFLAGS),
82 (CCMP8rr GR8:$src1, GR8:$src2, timm:$dcf, timm:$cond)>;
83 def : Pat<(X86ccmp GR16:$src1, GR16:$src2, timm:$dcf, timm:$cond, EFLAGS),
84 (CCMP16rr GR16:$src1, GR16:$src2, timm:$dcf, timm:$cond)>;
85 def : Pat<(X86ccmp GR32:$src1, GR32:$src2, timm:$dcf, timm:$cond, EFLAGS),
86 (CCMP32rr GR32:$src1, GR32:$src2, timm:$dcf, timm:$cond)>;
87 def : Pat<(X86ccmp GR64:$src1, GR64:$src2, timm:$dcf, timm:$cond, EFLAGS),
88 (CCMP64rr GR64:$src1, GR64:$src2, timm:$dcf, timm:$cond)>;
90 def : Pat<(X86ccmp GR8:$src1, (i8 imm:$src2), timm:$dcf, timm:$cond, EFLAGS),
91 (CCMP8ri GR8:$src1, imm:$src2, timm:$dcf, timm:$cond)>;
92 def : Pat<(X86ccmp GR16:$src1, (i16 imm:$src2), timm:$dcf, timm:$cond, EFLAGS),
93 (CCMP16ri GR16:$src1, imm:$src2, timm:$dcf, timm:$cond)>;
94 def : Pat<(X86ccmp GR32:$src1, (i32 imm:$src2), timm:$dcf, timm:$cond, EFLAGS),
95 (CCMP32ri GR32:$src1, imm:$src2, timm:$dcf, timm:$cond)>;
96 def : Pat<(X86ccmp GR64:$src1, i64immSExt32_su:$src2, timm:$dcf, timm:$cond, EFLAGS),
97 (CCMP64ri32 GR64:$src1, i64immSExt32_su:$src2, timm:$dcf, timm:$cond)>;
99 def : Pat<(X86ccmp GR8:$src1, (loadi8 addr:$src2), timm:$dcf, timm:$cond, EFLAGS),
100 (CCMP8rm GR8:$src1, addr:$src2, timm:$dcf, timm:$cond)>;
101 def : Pat<(X86ccmp GR16:$src1, (loadi16 addr:$src2), timm:$dcf, timm:$cond, EFLAGS),
102 (CCMP16rm GR16:$src1, addr:$src2, timm:$dcf, timm:$cond)>;
103 def : Pat<(X86ccmp GR32:$src1, (loadi32 addr:$src2), timm:$dcf, timm:$cond, EFLAGS),
104 (CCMP32rm GR32:$src1, addr:$src2, timm:$dcf, timm:$cond)>;
105 def : Pat<(X86ccmp GR64:$src1, (loadi64 addr:$src2), timm:$dcf, timm:$cond, EFLAGS),
106 (CCMP64rm GR64:$src1, addr:$src2, timm:$dcf, timm:$cond)>;
109 //===----------------------------------------------------------------------===//
110 // CTEST Instructions
112 let SchedRW = [WriteALU] in {
113 let isCommutable = 1 in {
114 def CTEST8rr : Ctest<0x84, MRMDestReg, Xi8, GR8, GR8>;
115 def CTEST16rr: Ctest<0x85, MRMDestReg, Xi16, GR16, GR16>, PD;
116 def CTEST32rr: Ctest<0x85, MRMDestReg, Xi32, GR32, GR32>;
117 def CTEST64rr: Ctest<0x85, MRMDestReg, Xi64, GR64, GR64>;
119 def CTEST8ri : Ctest<0xF6, MRM0r, Xi8, GR8, i8imm>;
120 def CTEST16ri: Ctest<0xF7, MRM0r, Xi16, GR16, i16imm>, PD;
121 def CTEST32ri: Ctest<0xF7, MRM0r, Xi32, GR32, i32imm>;
122 def CTEST64ri32: Ctest<0xF7, MRM0r, Xi64, GR64, i64i32imm>;
126 let SchedRW = [WriteALU.Folded] in {
127 def CTEST8mi : Ctest<0xF6, MRM0m, Xi8, i8mem, i8imm>;
128 def CTEST16mi: Ctest<0xF7, MRM0m, Xi16, i16mem, i16imm>, PD;
129 def CTEST32mi: Ctest<0xF7, MRM0m, Xi32, i32mem, i32imm>;
130 def CTEST64mi32: Ctest<0xF7, MRM0m, Xi64, i64mem, i64i32imm>;
132 let SchedRW = [WriteALU.Folded, WriteALU.ReadAfterFold] in {
133 def CTEST8mr : Ctest<0x84, MRMDestMem, Xi8, i8mem, GR8>;
134 def CTEST16mr: Ctest<0x85, MRMDestMem, Xi16, i16mem, GR16>, PD;
135 def CTEST32mr: Ctest<0x85, MRMDestMem, Xi32, i32mem, GR32>;
136 def CTEST64mr: Ctest<0x85, MRMDestMem, Xi64, i64mem, GR64>;
140 def : Pat<(X86ctest GR8:$src1, GR8:$src2, timm:$dcf, timm:$cond, EFLAGS),
141 (CTEST8rr GR8:$src1, GR8:$src2, timm:$dcf, timm:$cond)>;
142 def : Pat<(X86ctest GR16:$src1, GR16:$src2, timm:$dcf, timm:$cond, EFLAGS),
143 (CTEST16rr GR16:$src1, GR16:$src2, timm:$dcf, timm:$cond)>;
144 def : Pat<(X86ctest GR32:$src1, GR32:$src2, timm:$dcf, timm:$cond, EFLAGS),
145 (CTEST32rr GR32:$src1, GR32:$src2, timm:$dcf, timm:$cond)>;
146 def : Pat<(X86ctest GR64:$src1, GR64:$src2, timm:$dcf, timm:$cond, EFLAGS),
147 (CTEST64rr GR64:$src1, GR64:$src2, timm:$dcf, timm:$cond)>;
149 def : Pat<(X86ctestpat GR8:$src1, imm:$src2, timm:$dcf, timm:$cond),
150 (CTEST8ri GR8:$src1, imm:$src2, timm:$dcf, timm:$cond)>;
151 def : Pat<(X86ctestpat GR16:$src1, imm:$src2, timm:$dcf, timm:$cond),
152 (CTEST16ri GR16:$src1, imm:$src2, timm:$dcf, timm:$cond)>;
153 def : Pat<(X86ctestpat GR32:$src1, imm:$src2, timm:$dcf, timm:$cond),
154 (CTEST32ri GR32:$src1, imm:$src2, timm:$dcf, timm:$cond)>;
155 def : Pat<(X86ctestpat GR64:$src1, i64immSExt32_su:$src2, timm:$dcf, timm:$cond),
156 (CTEST64ri32 GR64:$src1, i64immSExt32_su:$src2, timm:$dcf, timm:$cond)>;