1// Copyright 2016, VIXL authors
2// All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions are met:
6//
7//   * Redistributions of source code must retain the above copyright notice,
8//     this list of conditions and the following disclaimer.
9//   * Redistributions in binary form must reproduce the above copyright notice,
10//     this list of conditions and the following disclaimer in the documentation
11//     and/or other materials provided with the distribution.
12//   * Neither the name of ARM Limited nor the names of its contributors may be
13//     used to endorse or promote products derived from this software without
14//     specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
17// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
20// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26
27
28// -----------------------------------------------------------------------------
29// This file is auto generated from the
30// test/aarch32/config/template-assembler-aarch32.cc.in template file using
31// tools/generate_tests.py.
32//
33// PLEASE DO NOT EDIT.
34// -----------------------------------------------------------------------------
35
36
37#include "test-runner.h"
38
39#include "test-utils.h"
40#include "test-utils-aarch32.h"
41
42#include "aarch32/assembler-aarch32.h"
43#include "aarch32/macro-assembler-aarch32.h"
44
45#define BUF_SIZE (4096)
46
47namespace vixl {
48namespace aarch32 {
49
50// List of instruction mnemonics.
51#define FOREACH_INSTRUCTION(M) \
52  M(clz)                       \
53  M(rbit)                      \
54  M(rev)                       \
55  M(rev16)                     \
56  M(revsh)                     \
57  M(rrx)                       \
58  M(rrxs)
59
60
61// The following definitions are defined again in each generated test, therefore
62// we need to place them in an anomymous namespace. It expresses that they are
63// local to this file only, and the compiler is not allowed to share these types
64// across test files during template instantiation. Specifically, `Operands` has
65// various layouts across generated tests so it absolutely cannot be shared.
66
67#ifdef VIXL_INCLUDE_TARGET_T32
68namespace {
69
70// Values to be passed to the assembler to produce the instruction under test.
71struct Operands {
72  Condition cond;
73  Register rd;
74  Register rn;
75};
76
77// This structure contains all data needed to test one specific
78// instruction.
79struct TestData {
80  // The `operands` field represents what to pass to the assembler to
81  // produce the instruction.
82  Operands operands;
83  // True if we need to generate an IT instruction for this test to be valid.
84  bool in_it_block;
85  // The condition to give the IT instruction, this will be set to "al" by
86  // default.
87  Condition it_condition;
88  // Description of the operands, used for error reporting.
89  const char* operands_description;
90  // Unique identifier, used for generating traces.
91  const char* identifier;
92};
93
94struct TestResult {
95  size_t size;
96  const byte* encoding;
97};
98
99// Each element of this array produce one instruction encoding.
100const TestData kTests[] =
101    {{{al, r0, r0}, false, al, "al r0 r0", "al_r0_r0"},
102     {{al, r0, r1}, false, al, "al r0 r1", "al_r0_r1"},
103     {{al, r0, r2}, false, al, "al r0 r2", "al_r0_r2"},
104     {{al, r0, r3}, false, al, "al r0 r3", "al_r0_r3"},
105     {{al, r0, r4}, false, al, "al r0 r4", "al_r0_r4"},
106     {{al, r0, r5}, false, al, "al r0 r5", "al_r0_r5"},
107     {{al, r0, r6}, false, al, "al r0 r6", "al_r0_r6"},
108     {{al, r0, r7}, false, al, "al r0 r7", "al_r0_r7"},
109     {{al, r0, r8}, false, al, "al r0 r8", "al_r0_r8"},
110     {{al, r0, r9}, false, al, "al r0 r9", "al_r0_r9"},
111     {{al, r0, r10}, false, al, "al r0 r10", "al_r0_r10"},
112     {{al, r0, r11}, false, al, "al r0 r11", "al_r0_r11"},
113     {{al, r0, r12}, false, al, "al r0 r12", "al_r0_r12"},
114     {{al, r0, r13}, false, al, "al r0 r13", "al_r0_r13"},
115     {{al, r0, r14}, false, al, "al r0 r14", "al_r0_r14"},
116     {{al, r1, r0}, false, al, "al r1 r0", "al_r1_r0"},
117     {{al, r1, r1}, false, al, "al r1 r1", "al_r1_r1"},
118     {{al, r1, r2}, false, al, "al r1 r2", "al_r1_r2"},
119     {{al, r1, r3}, false, al, "al r1 r3", "al_r1_r3"},
120     {{al, r1, r4}, false, al, "al r1 r4", "al_r1_r4"},
121     {{al, r1, r5}, false, al, "al r1 r5", "al_r1_r5"},
122     {{al, r1, r6}, false, al, "al r1 r6", "al_r1_r6"},
123     {{al, r1, r7}, false, al, "al r1 r7", "al_r1_r7"},
124     {{al, r1, r8}, false, al, "al r1 r8", "al_r1_r8"},
125     {{al, r1, r9}, false, al, "al r1 r9", "al_r1_r9"},
126     {{al, r1, r10}, false, al, "al r1 r10", "al_r1_r10"},
127     {{al, r1, r11}, false, al, "al r1 r11", "al_r1_r11"},
128     {{al, r1, r12}, false, al, "al r1 r12", "al_r1_r12"},
129     {{al, r1, r13}, false, al, "al r1 r13", "al_r1_r13"},
130     {{al, r1, r14}, false, al, "al r1 r14", "al_r1_r14"},
131     {{al, r2, r0}, false, al, "al r2 r0", "al_r2_r0"},
132     {{al, r2, r1}, false, al, "al r2 r1", "al_r2_r1"},
133     {{al, r2, r2}, false, al, "al r2 r2", "al_r2_r2"},
134     {{al, r2, r3}, false, al, "al r2 r3", "al_r2_r3"},
135     {{al, r2, r4}, false, al, "al r2 r4", "al_r2_r4"},
136     {{al, r2, r5}, false, al, "al r2 r5", "al_r2_r5"},
137     {{al, r2, r6}, false, al, "al r2 r6", "al_r2_r6"},
138     {{al, r2, r7}, false, al, "al r2 r7", "al_r2_r7"},
139     {{al, r2, r8}, false, al, "al r2 r8", "al_r2_r8"},
140     {{al, r2, r9}, false, al, "al r2 r9", "al_r2_r9"},
141     {{al, r2, r10}, false, al, "al r2 r10", "al_r2_r10"},
142     {{al, r2, r11}, false, al, "al r2 r11", "al_r2_r11"},
143     {{al, r2, r12}, false, al, "al r2 r12", "al_r2_r12"},
144     {{al, r2, r13}, false, al, "al r2 r13", "al_r2_r13"},
145     {{al, r2, r14}, false, al, "al r2 r14", "al_r2_r14"},
146     {{al, r3, r0}, false, al, "al r3 r0", "al_r3_r0"},
147     {{al, r3, r1}, false, al, "al r3 r1", "al_r3_r1"},
148     {{al, r3, r2}, false, al, "al r3 r2", "al_r3_r2"},
149     {{al, r3, r3}, false, al, "al r3 r3", "al_r3_r3"},
150     {{al, r3, r4}, false, al, "al r3 r4", "al_r3_r4"},
151     {{al, r3, r5}, false, al, "al r3 r5", "al_r3_r5"},
152     {{al, r3, r6}, false, al, "al r3 r6", "al_r3_r6"},
153     {{al, r3, r7}, false, al, "al r3 r7", "al_r3_r7"},
154     {{al, r3, r8}, false, al, "al r3 r8", "al_r3_r8"},
155     {{al, r3, r9}, false, al, "al r3 r9", "al_r3_r9"},
156     {{al, r3, r10}, false, al, "al r3 r10", "al_r3_r10"},
157     {{al, r3, r11}, false, al, "al r3 r11", "al_r3_r11"},
158     {{al, r3, r12}, false, al, "al r3 r12", "al_r3_r12"},
159     {{al, r3, r13}, false, al, "al r3 r13", "al_r3_r13"},
160     {{al, r3, r14}, false, al, "al r3 r14", "al_r3_r14"},
161     {{al, r4, r0}, false, al, "al r4 r0", "al_r4_r0"},
162     {{al, r4, r1}, false, al, "al r4 r1", "al_r4_r1"},
163     {{al, r4, r2}, false, al, "al r4 r2", "al_r4_r2"},
164     {{al, r4, r3}, false, al, "al r4 r3", "al_r4_r3"},
165     {{al, r4, r4}, false, al, "al r4 r4", "al_r4_r4"},
166     {{al, r4, r5}, false, al, "al r4 r5", "al_r4_r5"},
167     {{al, r4, r6}, false, al, "al r4 r6", "al_r4_r6"},
168     {{al, r4, r7}, false, al, "al r4 r7", "al_r4_r7"},
169     {{al, r4, r8}, false, al, "al r4 r8", "al_r4_r8"},
170     {{al, r4, r9}, false, al, "al r4 r9", "al_r4_r9"},
171     {{al, r4, r10}, false, al, "al r4 r10", "al_r4_r10"},
172     {{al, r4, r11}, false, al, "al r4 r11", "al_r4_r11"},
173     {{al, r4, r12}, false, al, "al r4 r12", "al_r4_r12"},
174     {{al, r4, r13}, false, al, "al r4 r13", "al_r4_r13"},
175     {{al, r4, r14}, false, al, "al r4 r14", "al_r4_r14"},
176     {{al, r5, r0}, false, al, "al r5 r0", "al_r5_r0"},
177     {{al, r5, r1}, false, al, "al r5 r1", "al_r5_r1"},
178     {{al, r5, r2}, false, al, "al r5 r2", "al_r5_r2"},
179     {{al, r5, r3}, false, al, "al r5 r3", "al_r5_r3"},
180     {{al, r5, r4}, false, al, "al r5 r4", "al_r5_r4"},
181     {{al, r5, r5}, false, al, "al r5 r5", "al_r5_r5"},
182     {{al, r5, r6}, false, al, "al r5 r6", "al_r5_r6"},
183     {{al, r5, r7}, false, al, "al r5 r7", "al_r5_r7"},
184     {{al, r5, r8}, false, al, "al r5 r8", "al_r5_r8"},
185     {{al, r5, r9}, false, al, "al r5 r9", "al_r5_r9"},
186     {{al, r5, r10}, false, al, "al r5 r10", "al_r5_r10"},
187     {{al, r5, r11}, false, al, "al r5 r11", "al_r5_r11"},
188     {{al, r5, r12}, false, al, "al r5 r12", "al_r5_r12"},
189     {{al, r5, r13}, false, al, "al r5 r13", "al_r5_r13"},
190     {{al, r5, r14}, false, al, "al r5 r14", "al_r5_r14"},
191     {{al, r6, r0}, false, al, "al r6 r0", "al_r6_r0"},
192     {{al, r6, r1}, false, al, "al r6 r1", "al_r6_r1"},
193     {{al, r6, r2}, false, al, "al r6 r2", "al_r6_r2"},
194     {{al, r6, r3}, false, al, "al r6 r3", "al_r6_r3"},
195     {{al, r6, r4}, false, al, "al r6 r4", "al_r6_r4"},
196     {{al, r6, r5}, false, al, "al r6 r5", "al_r6_r5"},
197     {{al, r6, r6}, false, al, "al r6 r6", "al_r6_r6"},
198     {{al, r6, r7}, false, al, "al r6 r7", "al_r6_r7"},
199     {{al, r6, r8}, false, al, "al r6 r8", "al_r6_r8"},
200     {{al, r6, r9}, false, al, "al r6 r9", "al_r6_r9"},
201     {{al, r6, r10}, false, al, "al r6 r10", "al_r6_r10"},
202     {{al, r6, r11}, false, al, "al r6 r11", "al_r6_r11"},
203     {{al, r6, r12}, false, al, "al r6 r12", "al_r6_r12"},
204     {{al, r6, r13}, false, al, "al r6 r13", "al_r6_r13"},
205     {{al, r6, r14}, false, al, "al r6 r14", "al_r6_r14"},
206     {{al, r7, r0}, false, al, "al r7 r0", "al_r7_r0"},
207     {{al, r7, r1}, false, al, "al r7 r1", "al_r7_r1"},
208     {{al, r7, r2}, false, al, "al r7 r2", "al_r7_r2"},
209     {{al, r7, r3}, false, al, "al r7 r3", "al_r7_r3"},
210     {{al, r7, r4}, false, al, "al r7 r4", "al_r7_r4"},
211     {{al, r7, r5}, false, al, "al r7 r5", "al_r7_r5"},
212     {{al, r7, r6}, false, al, "al r7 r6", "al_r7_r6"},
213     {{al, r7, r7}, false, al, "al r7 r7", "al_r7_r7"},
214     {{al, r7, r8}, false, al, "al r7 r8", "al_r7_r8"},
215     {{al, r7, r9}, false, al, "al r7 r9", "al_r7_r9"},
216     {{al, r7, r10}, false, al, "al r7 r10", "al_r7_r10"},
217     {{al, r7, r11}, false, al, "al r7 r11", "al_r7_r11"},
218     {{al, r7, r12}, false, al, "al r7 r12", "al_r7_r12"},
219     {{al, r7, r13}, false, al, "al r7 r13", "al_r7_r13"},
220     {{al, r7, r14}, false, al, "al r7 r14", "al_r7_r14"},
221     {{al, r8, r0}, false, al, "al r8 r0", "al_r8_r0"},
222     {{al, r8, r1}, false, al, "al r8 r1", "al_r8_r1"},
223     {{al, r8, r2}, false, al, "al r8 r2", "al_r8_r2"},
224     {{al, r8, r3}, false, al, "al r8 r3", "al_r8_r3"},
225     {{al, r8, r4}, false, al, "al r8 r4", "al_r8_r4"},
226     {{al, r8, r5}, false, al, "al r8 r5", "al_r8_r5"},
227     {{al, r8, r6}, false, al, "al r8 r6", "al_r8_r6"},
228     {{al, r8, r7}, false, al, "al r8 r7", "al_r8_r7"},
229     {{al, r8, r8}, false, al, "al r8 r8", "al_r8_r8"},
230     {{al, r8, r9}, false, al, "al r8 r9", "al_r8_r9"},
231     {{al, r8, r10}, false, al, "al r8 r10", "al_r8_r10"},
232     {{al, r8, r11}, false, al, "al r8 r11", "al_r8_r11"},
233     {{al, r8, r12}, false, al, "al r8 r12", "al_r8_r12"},
234     {{al, r8, r13}, false, al, "al r8 r13", "al_r8_r13"},
235     {{al, r8, r14}, false, al, "al r8 r14", "al_r8_r14"},
236     {{al, r9, r0}, false, al, "al r9 r0", "al_r9_r0"},
237     {{al, r9, r1}, false, al, "al r9 r1", "al_r9_r1"},
238     {{al, r9, r2}, false, al, "al r9 r2", "al_r9_r2"},
239     {{al, r9, r3}, false, al, "al r9 r3", "al_r9_r3"},
240     {{al, r9, r4}, false, al, "al r9 r4", "al_r9_r4"},
241     {{al, r9, r5}, false, al, "al r9 r5", "al_r9_r5"},
242     {{al, r9, r6}, false, al, "al r9 r6", "al_r9_r6"},
243     {{al, r9, r7}, false, al, "al r9 r7", "al_r9_r7"},
244     {{al, r9, r8}, false, al, "al r9 r8", "al_r9_r8"},
245     {{al, r9, r9}, false, al, "al r9 r9", "al_r9_r9"},
246     {{al, r9, r10}, false, al, "al r9 r10", "al_r9_r10"},
247     {{al, r9, r11}, false, al, "al r9 r11", "al_r9_r11"},
248     {{al, r9, r12}, false, al, "al r9 r12", "al_r9_r12"},
249     {{al, r9, r13}, false, al, "al r9 r13", "al_r9_r13"},
250     {{al, r9, r14}, false, al, "al r9 r14", "al_r9_r14"},
251     {{al, r10, r0}, false, al, "al r10 r0", "al_r10_r0"},
252     {{al, r10, r1}, false, al, "al r10 r1", "al_r10_r1"},
253     {{al, r10, r2}, false, al, "al r10 r2", "al_r10_r2"},
254     {{al, r10, r3}, false, al, "al r10 r3", "al_r10_r3"},
255     {{al, r10, r4}, false, al, "al r10 r4", "al_r10_r4"},
256     {{al, r10, r5}, false, al, "al r10 r5", "al_r10_r5"},
257     {{al, r10, r6}, false, al, "al r10 r6", "al_r10_r6"},
258     {{al, r10, r7}, false, al, "al r10 r7", "al_r10_r7"},
259     {{al, r10, r8}, false, al, "al r10 r8", "al_r10_r8"},
260     {{al, r10, r9}, false, al, "al r10 r9", "al_r10_r9"},
261     {{al, r10, r10}, false, al, "al r10 r10", "al_r10_r10"},
262     {{al, r10, r11}, false, al, "al r10 r11", "al_r10_r11"},
263     {{al, r10, r12}, false, al, "al r10 r12", "al_r10_r12"},
264     {{al, r10, r13}, false, al, "al r10 r13", "al_r10_r13"},
265     {{al, r10, r14}, false, al, "al r10 r14", "al_r10_r14"},
266     {{al, r11, r0}, false, al, "al r11 r0", "al_r11_r0"},
267     {{al, r11, r1}, false, al, "al r11 r1", "al_r11_r1"},
268     {{al, r11, r2}, false, al, "al r11 r2", "al_r11_r2"},
269     {{al, r11, r3}, false, al, "al r11 r3", "al_r11_r3"},
270     {{al, r11, r4}, false, al, "al r11 r4", "al_r11_r4"},
271     {{al, r11, r5}, false, al, "al r11 r5", "al_r11_r5"},
272     {{al, r11, r6}, false, al, "al r11 r6", "al_r11_r6"},
273     {{al, r11, r7}, false, al, "al r11 r7", "al_r11_r7"},
274     {{al, r11, r8}, false, al, "al r11 r8", "al_r11_r8"},
275     {{al, r11, r9}, false, al, "al r11 r9", "al_r11_r9"},
276     {{al, r11, r10}, false, al, "al r11 r10", "al_r11_r10"},
277     {{al, r11, r11}, false, al, "al r11 r11", "al_r11_r11"},
278     {{al, r11, r12}, false, al, "al r11 r12", "al_r11_r12"},
279     {{al, r11, r13}, false, al, "al r11 r13", "al_r11_r13"},
280     {{al, r11, r14}, false, al, "al r11 r14", "al_r11_r14"},
281     {{al, r12, r0}, false, al, "al r12 r0", "al_r12_r0"},
282     {{al, r12, r1}, false, al, "al r12 r1", "al_r12_r1"},
283     {{al, r12, r2}, false, al, "al r12 r2", "al_r12_r2"},
284     {{al, r12, r3}, false, al, "al r12 r3", "al_r12_r3"},
285     {{al, r12, r4}, false, al, "al r12 r4", "al_r12_r4"},
286     {{al, r12, r5}, false, al, "al r12 r5", "al_r12_r5"},
287     {{al, r12, r6}, false, al, "al r12 r6", "al_r12_r6"},
288     {{al, r12, r7}, false, al, "al r12 r7", "al_r12_r7"},
289     {{al, r12, r8}, false, al, "al r12 r8", "al_r12_r8"},
290     {{al, r12, r9}, false, al, "al r12 r9", "al_r12_r9"},
291     {{al, r12, r10}, false, al, "al r12 r10", "al_r12_r10"},
292     {{al, r12, r11}, false, al, "al r12 r11", "al_r12_r11"},
293     {{al, r12, r12}, false, al, "al r12 r12", "al_r12_r12"},
294     {{al, r12, r13}, false, al, "al r12 r13", "al_r12_r13"},
295     {{al, r12, r14}, false, al, "al r12 r14", "al_r12_r14"},
296     {{al, r13, r0}, false, al, "al r13 r0", "al_r13_r0"},
297     {{al, r13, r1}, false, al, "al r13 r1", "al_r13_r1"},
298     {{al, r13, r2}, false, al, "al r13 r2", "al_r13_r2"},
299     {{al, r13, r3}, false, al, "al r13 r3", "al_r13_r3"},
300     {{al, r13, r4}, false, al, "al r13 r4", "al_r13_r4"},
301     {{al, r13, r5}, false, al, "al r13 r5", "al_r13_r5"},
302     {{al, r13, r6}, false, al, "al r13 r6", "al_r13_r6"},
303     {{al, r13, r7}, false, al, "al r13 r7", "al_r13_r7"},
304     {{al, r13, r8}, false, al, "al r13 r8", "al_r13_r8"},
305     {{al, r13, r9}, false, al, "al r13 r9", "al_r13_r9"},
306     {{al, r13, r10}, false, al, "al r13 r10", "al_r13_r10"},
307     {{al, r13, r11}, false, al, "al r13 r11", "al_r13_r11"},
308     {{al, r13, r12}, false, al, "al r13 r12", "al_r13_r12"},
309     {{al, r13, r13}, false, al, "al r13 r13", "al_r13_r13"},
310     {{al, r13, r14}, false, al, "al r13 r14", "al_r13_r14"},
311     {{al, r14, r0}, false, al, "al r14 r0", "al_r14_r0"},
312     {{al, r14, r1}, false, al, "al r14 r1", "al_r14_r1"},
313     {{al, r14, r2}, false, al, "al r14 r2", "al_r14_r2"},
314     {{al, r14, r3}, false, al, "al r14 r3", "al_r14_r3"},
315     {{al, r14, r4}, false, al, "al r14 r4", "al_r14_r4"},
316     {{al, r14, r5}, false, al, "al r14 r5", "al_r14_r5"},
317     {{al, r14, r6}, false, al, "al r14 r6", "al_r14_r6"},
318     {{al, r14, r7}, false, al, "al r14 r7", "al_r14_r7"},
319     {{al, r14, r8}, false, al, "al r14 r8", "al_r14_r8"},
320     {{al, r14, r9}, false, al, "al r14 r9", "al_r14_r9"},
321     {{al, r14, r10}, false, al, "al r14 r10", "al_r14_r10"},
322     {{al, r14, r11}, false, al, "al r14 r11", "al_r14_r11"},
323     {{al, r14, r12}, false, al, "al r14 r12", "al_r14_r12"},
324     {{al, r14, r13}, false, al, "al r14 r13", "al_r14_r13"},
325     {{al, r14, r14}, false, al, "al r14 r14", "al_r14_r14"}};
326
327// These headers each contain an array of `TestResult` with the reference output
328// values. The reference arrays are names `kReference{mnemonic}`.
329#include "aarch32/traces/assembler-cond-rd-rn-clz-t32.h"
330#include "aarch32/traces/assembler-cond-rd-rn-rbit-t32.h"
331#include "aarch32/traces/assembler-cond-rd-rn-rev-t32.h"
332#include "aarch32/traces/assembler-cond-rd-rn-rev16-t32.h"
333#include "aarch32/traces/assembler-cond-rd-rn-revsh-t32.h"
334#include "aarch32/traces/assembler-cond-rd-rn-rrx-t32.h"
335#include "aarch32/traces/assembler-cond-rd-rn-rrxs-t32.h"
336
337
338// The maximum number of errors to report in detail for each test.
339const unsigned kErrorReportLimit = 8;
340
341typedef void (MacroAssembler::*Fn)(Condition cond, Register rd, Register rn);
342
343void TestHelper(Fn instruction,
344                const char* mnemonic,
345                const TestResult reference[]) {
346  unsigned total_error_count = 0;
347  MacroAssembler masm(BUF_SIZE);
348
349  masm.UseT32();
350
351  for (unsigned i = 0; i < ARRAY_SIZE(kTests); i++) {
352    // Values to pass to the macro-assembler.
353    Condition cond = kTests[i].operands.cond;
354    Register rd = kTests[i].operands.rd;
355    Register rn = kTests[i].operands.rn;
356
357    int32_t start = masm.GetCursorOffset();
358    {
359      // We never generate more that 4 bytes, as IT instructions are only
360      // allowed for narrow encodings.
361      ExactAssemblyScope scope(&masm, 4, ExactAssemblyScope::kMaximumSize);
362      if (kTests[i].in_it_block) {
363        masm.it(kTests[i].it_condition);
364      }
365      (masm.*instruction)(cond, rd, rn);
366    }
367    int32_t end = masm.GetCursorOffset();
368
369    const byte* result_ptr =
370        masm.GetBuffer()->GetOffsetAddress<const byte*>(start);
371    VIXL_ASSERT(start < end);
372    uint32_t result_size = end - start;
373
374    if (Test::generate_test_trace()) {
375      // Print the result bytes.
376      printf("const byte kInstruction_%s_%s[] = {\n",
377             mnemonic,
378             kTests[i].identifier);
379      for (uint32_t j = 0; j < result_size; j++) {
380        if (j == 0) {
381          printf("  0x%02" PRIx8, result_ptr[j]);
382        } else {
383          printf(", 0x%02" PRIx8, result_ptr[j]);
384        }
385      }
386      // This comment is meant to be used by external tools to validate
387      // the encoding. We can parse the comment to figure out what
388      // instruction this corresponds to.
389      if (kTests[i].in_it_block) {
390        printf(" // It %s; %s %s\n};\n",
391               kTests[i].it_condition.GetName(),
392               mnemonic,
393               kTests[i].operands_description);
394      } else {
395        printf(" // %s %s\n};\n", mnemonic, kTests[i].operands_description);
396      }
397    } else {
398      // Check we've emitted the exact same encoding as present in the
399      // trace file. Only print up to `kErrorReportLimit` errors.
400      if (((result_size != reference[i].size) ||
401           (memcmp(result_ptr, reference[i].encoding, reference[i].size) !=
402            0)) &&
403          (++total_error_count <= kErrorReportLimit)) {
404        printf("Error when testing \"%s\" with operands \"%s\":\n",
405               mnemonic,
406               kTests[i].operands_description);
407        printf("  Expected: ");
408        for (uint32_t j = 0; j < reference[i].size; j++) {
409          if (j == 0) {
410            printf("0x%02" PRIx8, reference[i].encoding[j]);
411          } else {
412            printf(", 0x%02" PRIx8, reference[i].encoding[j]);
413          }
414        }
415        printf("\n");
416        printf("  Found:    ");
417        for (uint32_t j = 0; j < result_size; j++) {
418          if (j == 0) {
419            printf("0x%02" PRIx8, result_ptr[j]);
420          } else {
421            printf(", 0x%02" PRIx8, result_ptr[j]);
422          }
423        }
424        printf("\n");
425      }
426    }
427  }
428
429  masm.FinalizeCode();
430
431  if (Test::generate_test_trace()) {
432    // Finalize the trace file by writing the final `TestResult` array
433    // which links all generated instruction encodings.
434    printf("const TestResult kReference%s[] = {\n", mnemonic);
435    for (unsigned i = 0; i < ARRAY_SIZE(kTests); i++) {
436      printf("  {\n");
437      printf("    ARRAY_SIZE(kInstruction_%s_%s),\n",
438             mnemonic,
439             kTests[i].identifier);
440      printf("    kInstruction_%s_%s,\n", mnemonic, kTests[i].identifier);
441      printf("  },\n");
442    }
443    printf("};\n");
444  } else {
445    if (total_error_count > kErrorReportLimit) {
446      printf("%u other errors follow.\n",
447             total_error_count - kErrorReportLimit);
448    }
449    // Crash if the test failed.
450    VIXL_CHECK(total_error_count == 0);
451  }
452}
453
454// Instantiate tests for each instruction in the list.
455#define TEST(mnemonic)                                                      \
456  void Test_##mnemonic() {                                                  \
457    TestHelper(&MacroAssembler::mnemonic, #mnemonic, kReference##mnemonic); \
458  }                                                                         \
459  Test test_##mnemonic("AARCH32_ASSEMBLER_COND_RD_RN_" #mnemonic "_T32",    \
460                       &Test_##mnemonic);
461FOREACH_INSTRUCTION(TEST)
462#undef TEST
463
464}  // namespace
465#endif
466
467}  // namespace aarch32
468}  // namespace vixl
469