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kasan: move tests to mm/kasan/
[linux.git] / tools / perf / tests / expr.c
1 // SPDX-License-Identifier: GPL-2.0
2 #include "util/debug.h"
3 #include "util/expr.h"
4 #include "util/header.h"
5 #include "util/smt.h"
6 #include "tests.h"
7 #include <math.h>
8 #include <stdlib.h>
9 #include <string.h>
10 #include <linux/zalloc.h>
11
12 static int test_ids_union(void)
13 {
14         struct hashmap *ids1, *ids2;
15
16         /* Empty union. */
17         ids1 = ids__new();
18         TEST_ASSERT_VAL("ids__new", ids1);
19         ids2 = ids__new();
20         TEST_ASSERT_VAL("ids__new", ids2);
21
22         ids1 = ids__union(ids1, ids2);
23         TEST_ASSERT_EQUAL("union", (int)hashmap__size(ids1), 0);
24
25         /* Union {foo, bar} against {}. */
26         ids2 = ids__new();
27         TEST_ASSERT_VAL("ids__new", ids2);
28
29         TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids1, strdup("foo")), 0);
30         TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids1, strdup("bar")), 0);
31
32         ids1 = ids__union(ids1, ids2);
33         TEST_ASSERT_EQUAL("union", (int)hashmap__size(ids1), 2);
34
35         /* Union {foo, bar} against {foo}. */
36         ids2 = ids__new();
37         TEST_ASSERT_VAL("ids__new", ids2);
38         TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids2, strdup("foo")), 0);
39
40         ids1 = ids__union(ids1, ids2);
41         TEST_ASSERT_EQUAL("union", (int)hashmap__size(ids1), 2);
42
43         /* Union {foo, bar} against {bar,baz}. */
44         ids2 = ids__new();
45         TEST_ASSERT_VAL("ids__new", ids2);
46         TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids2, strdup("bar")), 0);
47         TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids2, strdup("baz")), 0);
48
49         ids1 = ids__union(ids1, ids2);
50         TEST_ASSERT_EQUAL("union", (int)hashmap__size(ids1), 3);
51
52         ids__free(ids1);
53
54         return 0;
55 }
56
57 static int test(struct expr_parse_ctx *ctx, const char *e, double val2)
58 {
59         double val;
60
61         if (expr__parse(&val, ctx, e))
62                 TEST_ASSERT_VAL("parse test failed", 0);
63         TEST_ASSERT_VAL("unexpected value", val == val2);
64         return 0;
65 }
66
67 static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
68 {
69         struct expr_id_data *val_ptr;
70         const char *p;
71         double val, num_cpus, num_cores, num_dies, num_packages;
72         int ret;
73         struct expr_parse_ctx *ctx;
74         bool is_intel = false;
75         char buf[128];
76
77         if (!get_cpuid(buf, sizeof(buf)))
78                 is_intel = strstr(buf, "Intel") != NULL;
79
80         TEST_ASSERT_EQUAL("ids_union", test_ids_union(), 0);
81
82         ctx = expr__ctx_new();
83         TEST_ASSERT_VAL("expr__ctx_new", ctx);
84         expr__add_id_val(ctx, strdup("FOO"), 1);
85         expr__add_id_val(ctx, strdup("BAR"), 2);
86
87         ret = test(ctx, "1+1", 2);
88         ret |= test(ctx, "FOO+BAR", 3);
89         ret |= test(ctx, "(BAR/2)%2", 1);
90         ret |= test(ctx, "1 - -4",  5);
91         ret |= test(ctx, "(FOO-1)*2 + (BAR/2)%2 - -4",  5);
92         ret |= test(ctx, "1-1 | 1", 1);
93         ret |= test(ctx, "1-1 & 1", 0);
94         ret |= test(ctx, "min(1,2) + 1", 2);
95         ret |= test(ctx, "max(1,2) + 1", 3);
96         ret |= test(ctx, "1+1 if 3*4 else 0", 2);
97         ret |= test(ctx, "1.1 + 2.1", 3.2);
98         ret |= test(ctx, ".1 + 2.", 2.1);
99         ret |= test(ctx, "d_ratio(1, 2)", 0.5);
100         ret |= test(ctx, "d_ratio(2.5, 0)", 0);
101         ret |= test(ctx, "1.1 < 2.2", 1);
102         ret |= test(ctx, "2.2 > 1.1", 1);
103         ret |= test(ctx, "1.1 < 1.1", 0);
104         ret |= test(ctx, "2.2 > 2.2", 0);
105         ret |= test(ctx, "2.2 < 1.1", 0);
106         ret |= test(ctx, "1.1 > 2.2", 0);
107         ret |= test(ctx, "1.1e10 < 1.1e100", 1);
108         ret |= test(ctx, "1.1e2 > 1.1e-2", 1);
109
110         if (ret) {
111                 expr__ctx_free(ctx);
112                 return ret;
113         }
114
115         p = "FOO/0";
116         ret = expr__parse(&val, ctx, p);
117         TEST_ASSERT_VAL("division by zero", ret == -1);
118
119         p = "BAR/";
120         ret = expr__parse(&val, ctx, p);
121         TEST_ASSERT_VAL("missing operand", ret == -1);
122
123         expr__ctx_clear(ctx);
124         TEST_ASSERT_VAL("find ids",
125                         expr__find_ids("FOO + BAR + BAZ + BOZO", "FOO",
126                                         ctx) == 0);
127         TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 3);
128         TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BAR",
129                                                     (void **)&val_ptr));
130         TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BAZ",
131                                                     (void **)&val_ptr));
132         TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BOZO",
133                                                     (void **)&val_ptr));
134
135         expr__ctx_clear(ctx);
136         ctx->runtime = 3;
137         TEST_ASSERT_VAL("find ids",
138                         expr__find_ids("EVENT1\\,param\\=?@ + EVENT2\\,param\\=?@",
139                                         NULL, ctx) == 0);
140         TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 2);
141         TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT1,param=3@",
142                                                     (void **)&val_ptr));
143         TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT2,param=3@",
144                                                     (void **)&val_ptr));
145
146         expr__ctx_clear(ctx);
147         TEST_ASSERT_VAL("find ids",
148                         expr__find_ids("dash\\-event1 - dash\\-event2",
149                                        NULL, ctx) == 0);
150         TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 2);
151         TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "dash-event1",
152                                                     (void **)&val_ptr));
153         TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "dash-event2",
154                                                     (void **)&val_ptr));
155
156         /* Only EVENT1 or EVENT2 need be measured depending on the value of smt_on. */
157         expr__ctx_clear(ctx);
158         TEST_ASSERT_VAL("find ids",
159                         expr__find_ids("EVENT1 if #smt_on else EVENT2",
160                                 NULL, ctx) == 0);
161         TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 1);
162         TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids,
163                                                   smt_on() ? "EVENT1" : "EVENT2",
164                                                   (void **)&val_ptr));
165
166         /* The expression is a constant 1.0 without needing to evaluate EVENT1. */
167         expr__ctx_clear(ctx);
168         TEST_ASSERT_VAL("find ids",
169                         expr__find_ids("1.0 if EVENT1 > 100.0 else 1.0",
170                         NULL, ctx) == 0);
171         TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 0);
172
173         /* Test toplogy constants appear well ordered. */
174         expr__ctx_clear(ctx);
175         TEST_ASSERT_VAL("#num_cpus", expr__parse(&num_cpus, ctx, "#num_cpus") == 0);
176         TEST_ASSERT_VAL("#num_cores", expr__parse(&num_cores, ctx, "#num_cores") == 0);
177         TEST_ASSERT_VAL("#num_cpus >= #num_cores", num_cpus >= num_cores);
178         TEST_ASSERT_VAL("#num_dies", expr__parse(&num_dies, ctx, "#num_dies") == 0);
179         TEST_ASSERT_VAL("#num_cores >= #num_dies", num_cores >= num_dies);
180         TEST_ASSERT_VAL("#num_packages", expr__parse(&num_packages, ctx, "#num_packages") == 0);
181
182         if (num_dies) // Some platforms do not have CPU die support, for example s390
183                 TEST_ASSERT_VAL("#num_dies >= #num_packages", num_dies >= num_packages);
184
185         TEST_ASSERT_VAL("#system_tsc_freq", expr__parse(&val, ctx, "#system_tsc_freq") == 0);
186         if (is_intel)
187                 TEST_ASSERT_VAL("#system_tsc_freq > 0", val > 0);
188         else
189                 TEST_ASSERT_VAL("#system_tsc_freq == 0", fpclassify(val) == FP_ZERO);
190
191         /*
192          * Source count returns the number of events aggregating in a leader
193          * event including the leader. Check parsing yields an id.
194          */
195         expr__ctx_clear(ctx);
196         TEST_ASSERT_VAL("source count",
197                         expr__find_ids("source_count(EVENT1)",
198                         NULL, ctx) == 0);
199         TEST_ASSERT_VAL("source count", hashmap__size(ctx->ids) == 1);
200         TEST_ASSERT_VAL("source count", hashmap__find(ctx->ids, "EVENT1",
201                                                         (void **)&val_ptr));
202
203         expr__ctx_free(ctx);
204
205         return 0;
206 }
207
208 DEFINE_SUITE("Simple expression parser", expr);
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