SparcInstrInfo.td revision 1c4f4356032195f05c715b113b4ee5e2d4909915
1//===- SparcV8Instrs.td - Target Description for SparcV8 Target -----------===//
2// 
3//                     The LLVM Compiler Infrastructure
4//
5// This file was developed by the LLVM research group and is distributed under
6// the University of Illinois Open Source License. See LICENSE.TXT for details.
7// 
8//===----------------------------------------------------------------------===//
9//
10// This file describes the SparcV8 instructions in TableGen format.
11//
12//===----------------------------------------------------------------------===//
13
14//===----------------------------------------------------------------------===//
15// Instruction format superclass
16//===----------------------------------------------------------------------===//
17
18class InstV8 : Instruction {          // SparcV8 instruction baseline
19  field bits<32> Inst;
20
21  let Namespace = "V8";
22
23  bits<2> op;
24  let Inst{31-30} = op;               // Top two bits are the 'op' field
25
26  // Bit attributes specific to SparcV8 instructions
27  bit isPasi       = 0; // Does this instruction affect an alternate addr space?
28  bit isPrivileged = 0; // Is this a privileged instruction?
29}
30
31include "SparcV8InstrFormats.td"
32
33//===----------------------------------------------------------------------===//
34// Instructions
35//===----------------------------------------------------------------------===//
36
37// Pseudo instructions.
38class PseudoInstV8<string nm, dag ops> : InstV8  {
39  let Name = nm;
40  dag OperandList = ops;
41}
42def PHI : PseudoInstV8<"PHI", (ops variable_ops)>;
43def ADJCALLSTACKDOWN : PseudoInstV8<"ADJCALLSTACKDOWN", (ops variable_ops)>;
44def ADJCALLSTACKUP : PseudoInstV8<"ADJCALLSTACKUP", (ops variable_ops)>;
45def IMPLICIT_USE : PseudoInstV8<"IMPLICIT_USE", (ops variable_ops)>;
46def IMPLICIT_DEF : PseudoInstV8<"IMPLICIT_DEF", (ops variable_ops)>;
47def FpMOVD : PseudoInstV8<"FpMOVD", (ops)>; // pseudo 64-bit double move
48
49// Section A.3 - Synthetic Instructions, p. 85
50// special cases of JMPL:
51let isReturn = 1, isTerminator = 1, hasDelaySlot = 1 in {
52  let rd = I7.Num, rs1 = G0.Num, simm13 = 8 in
53    def RET : F3_2<2, 0b111000,
54                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "ret">;
55  let rd = O7.Num, rs1 = G0.Num, simm13 = 8 in
56    def RETL: F3_2<2, 0b111000,
57                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "retl">;
58}
59// CMP is a special case of SUBCC where destination is ignored, by setting it to
60// %g0 (hardwired zero).
61// FIXME: should keep track of the fact that it defs the integer condition codes
62let rd = 0 in
63  def CMPri: F3_2<2, 0b010100,
64                  (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "cmp">;
65
66// Section B.1 - Load Integer Instructions, p. 90
67def LDSB: F3_2<3, 0b001001,
68               (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "ldsb">;
69def LDSH: F3_2<3, 0b001010,
70               (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "ldsh">;
71def LDUB: F3_2<3, 0b000001,
72               (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "ldub">;
73def LDUH: F3_2<3, 0b000010,
74               (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "lduh">;
75def LD  : F3_2<3, 0b000000,
76               (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "ld">;
77def LDD : F3_2<3, 0b000011,
78               (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "ldd">;
79
80// Section B.2 - Load Floating-point Instructions, p. 92
81def LDFrr  : F3_1<3, 0b100000,
82                  (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
83                  "ld $b, $c, $dst">;
84def LDFri  : F3_2<3, 0b100000,
85                  (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "ld">;
86def LDDFrr : F3_1<3, 0b100011,
87                  (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
88                  "ldd $b, $c, $dst">;
89def LDDFri : F3_2<3, 0b100011,
90                  (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "ldd">;
91def LDFSRrr: F3_1<3, 0b100001,
92                  (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
93                  "ld $b, $c, $dst">;
94def LDFSRri: F3_2<3, 0b100001,
95                  (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "ld">;
96
97// Section B.4 - Store Integer Instructions, p. 95
98def STB : F3_2<3, 0b000101,
99               (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "stb">;
100def STH : F3_2<3, 0b000110,
101               (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "sth">;
102def ST  : F3_2<3, 0b000100,
103               (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "st">;
104def STD : F3_2<3, 0b000111,
105               (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "std">;
106
107// Section B.5 - Store Floating-point Instructions, p. 97
108def STFrr   : F3_1<3, 0b100100,
109                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
110                   "st $b, $c, $dst">;
111def STFri   : F3_2<3, 0b100100,
112                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "st">;
113def STDFrr  : F3_1<3, 0b100111,
114                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
115                   "std $b, $c, $dst">;
116def STDFri  : F3_2<3, 0b100111,
117                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "std">;
118def STFSRrr : F3_1<3, 0b100101,
119                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
120                   "st $b, $c, $dst">;
121def STFSRri : F3_2<3, 0b100101,
122                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "st">;
123def STDFQrr : F3_1<3, 0b100110,
124                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
125                   "std $b, $c, $dst">;
126def STDFQri : F3_2<3, 0b100110,
127                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "std">;
128
129// Section B.9 - SETHI Instruction, p. 104
130def SETHIi: F2_1<0b100, "sethi">;
131
132// Section B.10 - NOP Instruction, p. 105
133// (It's a special case of SETHI)
134let rd = 0, imm22 = 0 in
135  def NOP : F2_1<0b100, "nop">;
136
137// Section B.11 - Logical Instructions, p. 106
138def ANDrr   : F3_1<2, 0b000001,
139                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
140                   "and $b, $c, $dst">;
141def ANDri   : F3_2<2, 0b000001,
142                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "and">;
143def ANDCCrr : F3_1<2, 0b010001,
144                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
145                   "andcc $b, $c, $dst">;
146def ANDCCri : F3_2<2, 0b010001,
147                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "andcc">;
148def ANDNrr  : F3_1<2, 0b000101,
149                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
150                   "andn $b, $c, $dst">;
151def ANDNri  : F3_2<2, 0b000101,
152                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "andn">;
153def ANDNCCrr: F3_1<2, 0b010101,
154                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
155                   "andncc $b, $c, $dst">;
156def ANDNCCri: F3_2<2, 0b010101,
157                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "andncc">;
158def ORrr    : F3_1<2, 0b000010,
159                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
160                   "or $b, $c, $dst">;
161def ORri    : F3_2<2, 0b000010,
162                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "or">;
163def ORCCrr  : F3_1<2, 0b010010,
164                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
165                   "orcc $b, $c, $dst">;
166def ORCCri  : F3_2<2, 0b010010,
167                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "orcc">;
168def ORNrr   : F3_1<2, 0b000110,
169                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
170                   "orn $b, $c, $dst">;
171def ORNri   : F3_2<2, 0b000110,
172                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "orn">;
173def ORNCCrr : F3_1<2, 0b010110,
174                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
175                   "orncc $b, $c, $dst">;
176def ORNCCri : F3_2<2, 0b010110,
177                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "orncc">;
178def XORrr   : F3_1<2, 0b000011,
179                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
180                   "xor $b, $c, $dst">;
181def XORri   : F3_2<2, 0b000011,
182                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "xor">;
183def XORCCrr : F3_1<2, 0b010011,
184                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
185                   "xorcc $b, $c, $dst">;
186def XORCCri : F3_2<2, 0b010011,
187                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "xorcc">;
188def XNORrr  : F3_1<2, 0b000111,
189                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
190                   "xnor $b, $c, $dst">;
191def XNORri  : F3_2<2, 0b000111,
192                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "xnor">;
193def XNORCCrr: F3_1<2, 0b010111,
194                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
195                   "xnorcc $b, $c, $dst">;
196def XNORCCri: F3_2<2, 0b010111,
197                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "xnorcc">;
198
199// Section B.12 - Shift Instructions, p. 107
200def SLLrr : F3_1<2, 0b100101,
201                 (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
202                 "sll $b, $c, $dst">;
203def SLLri : F3_2<2, 0b100101,
204                 (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "sll">;
205def SRLrr : F3_1<2, 0b100110, 
206                 (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
207                  "srl $b, $c, $dst">;
208def SRLri : F3_2<2, 0b100110,
209                 (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "srl">;
210def SRArr : F3_1<2, 0b100111, 
211                 (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
212                  "sra $b, $c, $dst">;
213def SRAri : F3_2<2, 0b100111,
214                 (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "sra">;
215
216// Section B.13 - Add Instructions, p. 108
217def ADDrr   : F3_1<2, 0b000000, 
218                  (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
219                  "add $b, $c, $dst">;
220def ADDri   : F3_2<2, 0b000000,
221                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "add">;
222def ADDCCrr : F3_1<2, 0b010000, 
223                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
224                   "addcc $b, $c, $dst">;
225def ADDCCri : F3_2<2, 0b010000,
226                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "addcc">;
227def ADDXrr  : F3_1<2, 0b001000, 
228                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
229                   "addx $b, $c, $dst">;
230def ADDXri  : F3_2<2, 0b001000,
231                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "addx">;
232def ADDXCCrr: F3_1<2, 0b011000, 
233                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
234                   "addxcc $b, $c, $dst">;
235def ADDXCCri: F3_2<2, 0b011000,
236                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "addxcc">;
237
238// Section B.15 - Subtract Instructions, p. 110
239def SUBrr   : F3_1<2, 0b000100, 
240                  (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
241                  "sub $b, $c, $dst">;
242def SUBri   : F3_2<2, 0b000100,
243                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "sub">;
244def SUBCCrr : F3_1<2, 0b010100, 
245                 (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
246                  "subcc $b, $c, $dst">;
247def SUBCCri : F3_2<2, 0b010100,
248                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "subcc">;
249def SUBXrr  : F3_1<2, 0b001100, 
250                 (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
251                  "subx $b, $c, $dst">;
252def SUBXri  : F3_2<2, 0b001100,
253                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "subx">;
254def SUBXCCrr: F3_1<2, 0b011100, 
255                 (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
256                  "subxcc $b, $c, $dst">;
257def SUBXCCri: F3_2<2, 0b011100,
258                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "subxcc">;
259
260// Section B.18 - Multiply Instructions, p. 113
261def UMULrr  : F3_1<2, 0b001010, 
262                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
263                   "umul $b, $c, $dst">;
264def UMULri  : F3_2<2, 0b001010,
265                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "umul">;
266def SMULrr  : F3_1<2, 0b001011, 
267                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
268                   "smul $b, $c, $dst">;
269def SMULri  : F3_2<2, 0b001011,
270                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "smul">;
271def UMULCCrr: F3_1<2, 0b011010, 
272                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
273                   "umulcc $b, $c, $dst">;
274def UMULCCri: F3_2<2, 0b011010,
275                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "umulcc">;
276def SMULCCrr: F3_1<2, 0b011011, 
277                   (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
278                   "smulcc $b, $c, $dst">;
279def SMULCCri: F3_2<2, 0b011011,
280                   (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "smulcc">;
281
282// Section B.19 - Divide Instructions, p. 115
283def UDIVrr   : F3_1<2, 0b001110, 
284                    (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
285                    "udiv $b, $c, $dst">;
286def UDIVri   : F3_2<2, 0b001110,
287                    (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "udiv">;
288def SDIVrr   : F3_1<2, 0b001111,
289                    (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
290                    "sdiv $b, $c, $dst">;
291def SDIVri   : F3_2<2, 0b001111,
292                    (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "sdiv">;
293def UDIVCCrr : F3_1<2, 0b011110,
294                    (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
295                    "udivcc $b, $c, $dst">;
296def UDIVCCri : F3_2<2, 0b011110,
297                    (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "udivcc">;
298def SDIVCCrr : F3_1<2, 0b011111,
299                    (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
300                    "sdivcc $b, $c, $dst">;
301def SDIVCCri : F3_2<2, 0b011111,
302                    (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "sdivcc">;
303
304// Section B.20 - SAVE and RESTORE, p. 117
305def SAVErr    : F3_1<2, 0b111100,
306                     (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
307                     "save $b, $c, $dst">;
308def SAVEri    : F3_2<2, 0b111100,
309                     (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "save">;
310def RESTORErr : F3_1<2, 0b111101,
311                     (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
312                     "restore $b, $c, $dst">;
313def RESTOREri : F3_2<2, 0b111101,
314                     (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "restore">;
315
316// Section B.21 - Branch on Integer Condition Codes Instructions, p. 119
317
318// conditional branch class:
319class BranchV8<bits<4> cc, string nm> : F2_2<cc, 0b010, nm> {
320  let isBranch = 1;
321  let isTerminator = 1;
322  let hasDelaySlot = 1;
323}
324
325let isBarrier = 1 in
326  def BA   : BranchV8<0b1000, "ba">;
327def BN   : BranchV8<0b0000, "bn">;
328def BNE  : BranchV8<0b1001, "bne">;
329def BE   : BranchV8<0b0001, "be">;
330def BG   : BranchV8<0b1010, "bg">;
331def BLE  : BranchV8<0b0010, "ble">;
332def BGE  : BranchV8<0b1011, "bge">;
333def BL   : BranchV8<0b0011, "bl">;
334def BGU  : BranchV8<0b1100, "bgu">;
335def BLEU : BranchV8<0b0100, "bleu">;
336def BCC  : BranchV8<0b1101, "bcc">;
337def BCS  : BranchV8<0b0101, "bcs">;
338
339// Section B.22 - Branch on Floating-point Condition Codes Instructions, p. 121
340
341// floating-point conditional branch class:
342class FPBranchV8<bits<4> cc, string nm> : F2_2<cc, 0b110, nm> {
343  let isBranch = 1;
344  let isTerminator = 1;
345  let hasDelaySlot = 1;
346}
347
348def FBA  : FPBranchV8<0b1000, "fba">;
349def FBN  : FPBranchV8<0b0000, "fbn">;
350def FBU  : FPBranchV8<0b0111, "fbu">;
351def FBG  : FPBranchV8<0b0110, "fbg">;
352def FBUG : FPBranchV8<0b0101, "fbug">;
353def FBL  : FPBranchV8<0b0100, "fbl">;
354def FBUL : FPBranchV8<0b0011, "fbul">;
355def FBLG : FPBranchV8<0b0010, "fblg">;
356def FBNE : FPBranchV8<0b0001, "fbne">;
357def FBE  : FPBranchV8<0b1001, "fbe">;
358def FBUE : FPBranchV8<0b1010, "fbue">;
359def FBGE : FPBranchV8<0b1011, "fbge">;
360def FBUGE: FPBranchV8<0b1100, "fbuge">;
361def FBLE : FPBranchV8<0b1101, "fble">;
362def FBULE: FPBranchV8<0b1110, "fbule">;
363def FBO  : FPBranchV8<0b1111, "fbo">;
364
365
366
367// Section B.24 - Call and Link Instruction, p. 125
368// This is the only Format 1 instruction
369let Uses = [O0, O1, O2, O3, O4, O5], hasDelaySlot = 1, isCall = 1 in { 
370  // pc-relative call:
371  let Defs = [O0, O1, O2, O3, O4, O5, O7, G1, G2, G3, G4, G5, G6, G7,
372    D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15] in
373  def CALL : InstV8 {
374    bits<30> disp;
375    let op = 1;
376    let Inst{29-0} = disp;
377    let Name = "call";
378  }
379
380  // indirect call (O7 is an EXPLICIT def in indirect calls, so it cannot also
381  // be an implicit def):
382  let Defs = [O0, O1, O2, O3, O4, O5, G1, G2, G3, G4, G5, G6, G7,
383    D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15] in
384  def JMPLrr : F3_1<2, 0b111000,
385                    (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
386                    "jmpl $b+$c, $dst">;
387}
388
389// Section B.29 - Write State Register Instructions
390def WRrr : F3_1<2, 0b110000,
391                (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
392                "wr $b, $c, $dst">;
393def WRri : F3_2<2, 0b110000,
394                (ops IntRegs:$dst, IntRegs:$b, i32imm:$c), "wr">;                    // wr rs1, imm, rd
395
396// Convert Integer to Floating-point Instructions, p. 141
397def FITOS : F3_3<2, 0b110100, 0b011000100, "fitos">;
398def FITOD : F3_3<2, 0b110100, 0b011001000, "fitod">;
399
400// Convert Floating-point to Integer Instructions, p. 142
401def FSTOI : F3_3<2, 0b110100, 0b011010001, "fstoi">;
402def FDTOI : F3_3<2, 0b110100, 0b011010010, "fdtoi">;
403
404// Convert between Floating-point Formats Instructions, p. 143
405def FSTOD : F3_3<2, 0b110100, 0b011001001, "fstod">;
406def FDTOS : F3_3<2, 0b110100, 0b011000110, "fdtos">;
407
408// Floating-point Move Instructions, p. 144
409def FMOVS : F3_3<2, 0b110100, 0b000000001, "fmovs">;
410def FNEGS : F3_3<2, 0b110100, 0b000000101, "fnegs">;
411def FABSS : F3_3<2, 0b110100, 0b000001001, "fabss">;
412
413// Floating-point Add and Subtract Instructions, p. 146
414def FADDS  : F3_3<2, 0b110100, 0b001000001, "fadds">;
415def FADDD  : F3_3<2, 0b110100, 0b001000010, "faddd">;
416def FSUBS  : F3_3<2, 0b110100, 0b001000101, "fsubs">;
417def FSUBD  : F3_3<2, 0b110100, 0b001000110, "fsubd">;
418
419// Floating-point Multiply and Divide Instructions, p. 147
420def FMULS  : F3_3<2, 0b110100, 0b001001001, "fmuls">;
421def FMULD  : F3_3<2, 0b110100, 0b001001010, "fmuld">;
422def FSMULD : F3_3<2, 0b110100, 0b001101001, "fsmuld">;
423def FDIVS  : F3_3<2, 0b110100, 0b001001101, "fdivs">;
424def FDIVD  : F3_3<2, 0b110100, 0b001001110, "fdivd">;
425
426// Floating-point Compare Instructions, p. 148
427// Note: the 2nd template arg is different for these guys.
428// Note 2: the result of a FCMP is not available until the 2nd cycle
429// after the instr is retired, but there is no interlock. This behavior
430// is modelled as a delay slot.
431let hasDelaySlot = 1 in {
432  def FCMPS  : F3_3<2, 0b110101, 0b001010001, "fcmps">;
433  def FCMPD  : F3_3<2, 0b110101, 0b001010010, "fcmpd">;
434  def FCMPES : F3_3<2, 0b110101, 0b001010101, "fcmpes">;
435  def FCMPED : F3_3<2, 0b110101, 0b001010110, "fcmped">;
436}
437
438