xref: /freebsd/contrib/llvm-project/llvm/lib/Target/PowerPC/PPCScheduleE500mc.td (revision 18054d0220cfc8df9c9568c437bd6fbb59d53c3c) 
1//===-- PPCScheduleE500mc.td - e500mc Scheduling Defs ------*- tablegen -*-===//
2//
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
6//
7//===----------------------------------------------------------------------===//
8//
9// This file defines the itinerary class data for the Freescale e500mc 32-bit
10// Power processor.
11//
12// All information is derived from the "e500mc Core Reference Manual",
13// Freescale Document Number E500MCRM, Rev. 1, 03/2012.
14//
15//===----------------------------------------------------------------------===//
16// Relevant functional units in the Freescale e500mc core:
17//
18//  * Decode & Dispatch
19//    Can dispatch up to 2 instructions per clock cycle to either the GPR Issue
20//    queues (GIQx), FP Issue Queue (FIQ), or Branch issue queue (BIQ).
21def E500mc_DIS0 : FuncUnit; // Dispatch stage - insn 1
22def E500mc_DIS1 : FuncUnit; // Dispatch stage - insn 2
23
24//  * Execute
25//    6 pipelined execution units: SFX0, SFX1, BU, FPU, LSU, CFX.
26//    Some instructions can only execute in SFX0 but not SFX1.
27//    The CFX has a bypass path, allowing non-divide instructions to execute
28//    while a divide instruction is executed.
29def E500mc_SFX0  : FuncUnit; // Simple unit 0
30def E500mc_SFX1  : FuncUnit; // Simple unit 1
31def E500mc_BU    : FuncUnit; // Branch unit
32def E500mc_CFX_DivBypass
33               : FuncUnit; // CFX divide bypass path
34def E500mc_CFX_0 : FuncUnit; // CFX pipeline
35def E500mc_LSU_0 : FuncUnit; // LSU pipeline
36def E500mc_FPU_0 : FuncUnit; // FPU pipeline
37
38def E500mc_GPR_Bypass : Bypass;
39def E500mc_FPR_Bypass : Bypass;
40def E500mc_CR_Bypass  : Bypass;
41
42def PPCE500mcItineraries : ProcessorItineraries<
43  [E500mc_DIS0, E500mc_DIS1, E500mc_SFX0, E500mc_SFX1, E500mc_BU, E500mc_CFX_DivBypass,
44   E500mc_CFX_0, E500mc_LSU_0, E500mc_FPU_0],
45  [E500mc_CR_Bypass, E500mc_GPR_Bypass, E500mc_FPR_Bypass], [
46  InstrItinData<IIC_IntSimple,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
47                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1]>],
48                                 [4, 1, 1], // Latency = 1
49                                 [E500mc_GPR_Bypass,
50                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
51  InstrItinData<IIC_IntGeneral,  [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
52                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1]>],
53                                 [4, 1, 1], // Latency = 1
54                                 [E500mc_GPR_Bypass,
55                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
56  InstrItinData<IIC_IntISEL,     [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
57                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1]>],
58                                 [4, 1, 1, 1], // Latency = 1
59                                 [E500mc_GPR_Bypass,
60                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass,
61                                  E500mc_CR_Bypass]>,
62  InstrItinData<IIC_IntCompare,  [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
63                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1]>],
64                                 [5, 1, 1], // Latency = 1 or 2
65                                 [E500mc_CR_Bypass,
66                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
67  InstrItinData<IIC_IntDivW,     [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
68                                  InstrStage<1, [E500mc_CFX_0], 0>,
69                                  InstrStage<14, [E500mc_CFX_DivBypass]>],
70                                 [17, 1, 1], // Latency=4..35, Repeat= 4..35
71                                 [E500mc_GPR_Bypass,
72                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
73  InstrItinData<IIC_IntMFFS,     [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
74                                  InstrStage<8, [E500mc_FPU_0]>],
75                                 [11], // Latency = 8
76                                 [E500mc_FPR_Bypass]>,
77  InstrItinData<IIC_IntMTFSB0,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
78                                  InstrStage<8, [E500mc_FPU_0]>],
79                                 [11, 1, 1], // Latency = 8
80                                 [NoBypass, NoBypass, NoBypass]>,
81  InstrItinData<IIC_IntMulHW,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
82                                  InstrStage<1, [E500mc_CFX_0]>],
83                                 [7, 1, 1], // Latency = 4, Repeat rate = 1
84                                 [E500mc_GPR_Bypass,
85                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
86  InstrItinData<IIC_IntMulHWU,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
87                                  InstrStage<1, [E500mc_CFX_0]>],
88                                 [7, 1, 1], // Latency = 4, Repeat rate = 1
89                                 [E500mc_GPR_Bypass,
90                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
91  InstrItinData<IIC_IntMulLI,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
92                                  InstrStage<1, [E500mc_CFX_0]>],
93                                 [7, 1, 1], // Latency = 4, Repeat rate = 1
94                                 [E500mc_GPR_Bypass,
95                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
96  InstrItinData<IIC_IntRotate,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
97                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1]>],
98                                 [4, 1, 1], // Latency = 1
99                                 [E500mc_GPR_Bypass,
100                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
101  InstrItinData<IIC_IntShift,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
102                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1]>],
103                                 [4, 1, 1], // Latency = 1
104                                 [E500mc_GPR_Bypass,
105                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
106  InstrItinData<IIC_IntTrapW,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
107                                  InstrStage<2, [E500mc_SFX0]>],
108                                 [5, 1], // Latency = 2, Repeat rate = 2
109                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
110  InstrItinData<IIC_BrB,         [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
111                                  InstrStage<1, [E500mc_BU]>],
112                                 [4, 1], // Latency = 1
113                                 [NoBypass, E500mc_GPR_Bypass]>,
114  InstrItinData<IIC_BrCR,        [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
115                                  InstrStage<1, [E500mc_BU]>],
116                                 [4, 1, 1], // Latency = 1
117                                 [E500mc_CR_Bypass,
118                                  E500mc_CR_Bypass, E500mc_CR_Bypass]>,
119  InstrItinData<IIC_BrMCR,       [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
120                                  InstrStage<1, [E500mc_BU]>],
121                                 [4, 1], // Latency = 1
122                                 [E500mc_CR_Bypass, E500mc_CR_Bypass]>,
123  InstrItinData<IIC_BrMCRX,      [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
124                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1]>],
125                                 [4, 1, 1], // Latency = 1
126                                 [E500mc_CR_Bypass, E500mc_GPR_Bypass]>,
127  InstrItinData<IIC_LdStDCBA,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
128                                  InstrStage<1, [E500mc_LSU_0]>],
129                                 [6, 1], // Latency = 3, Repeat rate = 1
130                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
131  InstrItinData<IIC_LdStDCBF,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
132                                  InstrStage<1, [E500mc_LSU_0]>],
133                                 [6, 1], // Latency = 3
134                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
135  InstrItinData<IIC_LdStDCBI,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
136                                  InstrStage<1, [E500mc_LSU_0]>],
137                                 [6, 1], // Latency = 3
138                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
139  InstrItinData<IIC_LdStLoad,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
140                                  InstrStage<1, [E500mc_LSU_0]>],
141                                 [6, 1], // Latency = 3
142                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
143  InstrItinData<IIC_LdStLoadUpd, [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
144                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1], 0>,
145                                  InstrStage<1, [E500mc_LSU_0]>],
146                                 [6, 1], // Latency = 3
147                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass],
148                                 2>, // 2 micro-ops
149  InstrItinData<IIC_LdStLoadUpdX,[InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
150                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1], 0>,
151                                  InstrStage<1, [E500mc_LSU_0]>],
152                                 [6, 1], // Latency = 3
153                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass],
154                                 2>, // 2 micro-ops
155  InstrItinData<IIC_LdStStore,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
156                                  InstrStage<1, [E500mc_LSU_0]>],
157                                 [6, 1], // Latency = 3
158                                 [NoBypass, E500mc_GPR_Bypass]>,
159  InstrItinData<IIC_LdStSTU,     [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
160                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1], 0>,
161                                  InstrStage<1, [E500mc_LSU_0]>],
162                                 [6, 1], // Latency = 3
163                                 [NoBypass, E500mc_GPR_Bypass],
164                                 2>, // 2 micro-ops
165  InstrItinData<IIC_LdStSTUX,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
166                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1], 0>,
167                                  InstrStage<1, [E500mc_LSU_0]>],
168                                 [6, 1], // Latency = 3
169                                 [NoBypass, E500mc_GPR_Bypass],
170                                 2>, // 2 micro-ops
171  InstrItinData<IIC_LdStICBI,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
172                                  InstrStage<1, [E500mc_LSU_0]>],
173                                 [6, 1], // Latency = 3
174                                 [NoBypass, E500mc_GPR_Bypass]>,
175  InstrItinData<IIC_LdStSTFD,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
176                                  InstrStage<1, [E500mc_LSU_0]>],
177                                 [6, 1, 1], // Latency = 3
178                                 [E500mc_GPR_Bypass,
179                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
180  InstrItinData<IIC_LdStSTFDU,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
181                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1], 0>,
182                                  InstrStage<1, [E500mc_LSU_0]>],
183                                 [6, 1, 1], // Latency = 3
184                                 [E500mc_GPR_Bypass,
185                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass],
186                                 2>, // 2 micro-ops
187  InstrItinData<IIC_LdStLFD,     [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
188                                  InstrStage<1, [E500mc_LSU_0]>],
189                                 [7, 1, 1], // Latency = 4
190                                 [E500mc_FPR_Bypass,
191                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
192  InstrItinData<IIC_LdStLFDU,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
193                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1], 0>,
194                                  InstrStage<1, [E500mc_LSU_0]>],
195                                 [7, 1, 1], // Latency = 4
196                                 [E500mc_FPR_Bypass,
197                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass],
198                                 2>, // 2 micro-ops
199  InstrItinData<IIC_LdStLFDUX,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
200                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1], 0>,
201                                  InstrStage<1, [E500mc_LSU_0]>],
202                                 [7, 1, 1], // Latency = 4
203                                 [E500mc_FPR_Bypass,
204                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass],
205                                 2>, // 2 micro-ops
206  InstrItinData<IIC_LdStLHA,     [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
207                                  InstrStage<1, [E500mc_LSU_0]>],
208                                 [6, 1], // Latency = 3
209                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
210  InstrItinData<IIC_LdStLHAU,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
211                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1], 0>,
212                                  InstrStage<1, [E500mc_LSU_0]>],
213                                 [6, 1], // Latency = 3
214                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
215  InstrItinData<IIC_LdStLHAUX,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
216                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1], 0>,
217                                  InstrStage<1, [E500mc_LSU_0]>],
218                                 [6, 1], // Latency = 3
219                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
220  InstrItinData<IIC_LdStLMW,     [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
221                                  InstrStage<1, [E500mc_LSU_0]>],
222                                 [7, 1], // Latency = r+3
223                                 [NoBypass, E500mc_GPR_Bypass]>,
224  InstrItinData<IIC_LdStLWARX,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
225                                  InstrStage<3, [E500mc_LSU_0]>],
226                                 [6, 1, 1], // Latency = 3, Repeat rate = 3
227                                 [E500mc_GPR_Bypass,
228                                  E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
229  InstrItinData<IIC_LdStSTWCX,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
230                                  InstrStage<1, [E500mc_LSU_0]>],
231                                 [6, 1], // Latency = 3
232                                 [NoBypass, E500mc_GPR_Bypass]>,
233  InstrItinData<IIC_LdStSync,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
234                                  InstrStage<1, [E500mc_LSU_0]>]>,
235  InstrItinData<IIC_SprMFSR,     [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
236                                  InstrStage<4, [E500mc_SFX0]>],
237                                 [7, 1],
238                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
239  InstrItinData<IIC_SprMTMSR,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
240                                  InstrStage<2, [E500mc_SFX0, E500mc_SFX1]>],
241                                 [5, 1], // Latency = 2, Repeat rate = 4
242                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
243  InstrItinData<IIC_SprMTSR,     [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
244                                  InstrStage<1, [E500mc_SFX0]>],
245                                 [5, 1],
246                                 [NoBypass, E500mc_GPR_Bypass]>,
247  InstrItinData<IIC_SprTLBSYNC,  [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
248                                  InstrStage<1, [E500mc_LSU_0], 0>]>,
249  InstrItinData<IIC_SprMFCR,     [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
250                                  InstrStage<5, [E500mc_SFX0]>],
251                                 [8, 1],
252                                 [E500mc_GPR_Bypass, E500mc_CR_Bypass]>,
253  InstrItinData<IIC_SprMFCRF,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
254                                  InstrStage<5, [E500mc_SFX0]>],
255                                 [8, 1],
256                                 [E500mc_GPR_Bypass, E500mc_CR_Bypass]>,
257  InstrItinData<IIC_SprMFPMR,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
258                                  InstrStage<4, [E500mc_SFX0]>],
259                                 [7, 1], // Latency = 4, Repeat rate = 4
260                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
261  InstrItinData<IIC_SprMFMSR,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
262                                  InstrStage<4, [E500mc_SFX0]>],
263                                 [7, 1], // Latency = 4, Repeat rate = 4
264                                 [E500mc_GPR_Bypass, E500mc_GPR_Bypass]>,
265  InstrItinData<IIC_SprMFSPR,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
266                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1]>],
267                                 [4, 1], // Latency = 1, Repeat rate = 1
268                                 [E500mc_GPR_Bypass, E500mc_CR_Bypass]>,
269  InstrItinData<IIC_SprMTPMR,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
270                                  InstrStage<1, [E500mc_SFX0]>],
271                                 [4, 1], // Latency = 1, Repeat rate = 1
272                                 [E500mc_CR_Bypass, E500mc_GPR_Bypass]>,
273  InstrItinData<IIC_SprMFTB,     [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
274                                  InstrStage<4, [E500mc_SFX0]>],
275                                 [7, 1], // Latency = 4, Repeat rate = 4
276                                 [NoBypass, E500mc_GPR_Bypass]>,
277  InstrItinData<IIC_SprMTSPR,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
278                                  InstrStage<1, [E500mc_SFX0, E500mc_SFX1]>],
279                                 [4, 1], // Latency = 1, Repeat rate = 1
280                                 [E500mc_CR_Bypass, E500mc_GPR_Bypass]>,
281  InstrItinData<IIC_SprMTSRIN,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
282                                  InstrStage<1, [E500mc_SFX0]>],
283                                 [4, 1],
284                                 [NoBypass, E500mc_GPR_Bypass]>,
285  InstrItinData<IIC_FPGeneral,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
286                                  InstrStage<2, [E500mc_FPU_0]>],
287                                 [11, 1, 1], // Latency = 8, Repeat rate = 2
288                                 [E500mc_FPR_Bypass,
289                                  E500mc_FPR_Bypass, E500mc_FPR_Bypass]>,
290  InstrItinData<IIC_FPAddSub,    [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
291                                  InstrStage<4, [E500mc_FPU_0]>],
292                                 [13, 1, 1], // Latency = 10, Repeat rate = 4
293                                 [E500mc_FPR_Bypass,
294                                  E500mc_FPR_Bypass, E500mc_FPR_Bypass]>,
295  InstrItinData<IIC_FPCompare,   [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
296                                  InstrStage<2, [E500mc_FPU_0]>],
297                                 [11, 1, 1], // Latency = 8, Repeat rate = 2
298                                 [E500mc_CR_Bypass,
299                                  E500mc_FPR_Bypass, E500mc_FPR_Bypass]>,
300  InstrItinData<IIC_FPDivD,      [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
301                                  InstrStage<68, [E500mc_FPU_0]>],
302                                 [71, 1, 1], // Latency = 68, Repeat rate = 68
303                                 [E500mc_FPR_Bypass,
304                                  E500mc_FPR_Bypass, E500mc_FPR_Bypass]>,
305  InstrItinData<IIC_FPDivS,      [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
306                                  InstrStage<38, [E500mc_FPU_0]>],
307                                 [41, 1, 1], // Latency = 38, Repeat rate = 38
308                                 [E500mc_FPR_Bypass,
309                                  E500mc_FPR_Bypass, E500mc_FPR_Bypass]>,
310  InstrItinData<IIC_FPFused,     [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
311                                  InstrStage<4, [E500mc_FPU_0]>],
312                                 [13, 1, 1, 1], // Latency = 10, Repeat rate = 4
313                                 [E500mc_FPR_Bypass,
314                                  E500mc_FPR_Bypass, E500mc_FPR_Bypass,
315                                  E500mc_FPR_Bypass]>,
316  InstrItinData<IIC_FPRes,       [InstrStage<1, [E500mc_DIS0, E500mc_DIS1], 0>,
317                                  InstrStage<38, [E500mc_FPU_0]>],
318                                 [41, 1], // Latency = 38, Repeat rate = 38
319                                 [E500mc_FPR_Bypass, E500mc_FPR_Bypass]>
320]>;
321
322// ===---------------------------------------------------------------------===//
323// e500mc machine model for scheduling and other instruction cost heuristics.
324
325def PPCE500mcModel : SchedMachineModel {
326  let IssueWidth = 2;  // 2 micro-ops are dispatched per cycle.
327  let LoadLatency = 5; // Optimistic load latency assuming bypass.
328                       // This is overriden by OperandCycles if the
329                       // Itineraries are queried instead.
330
331  let CompleteModel = 0;
332
333  let Itineraries = PPCE500mcItineraries;
334}
335