|
111
|
1 /* PR middle-end/78476 - snprintf(0, 0, ...) with known arguments not
|
|
|
2 optimized away
|
|
|
3 { dg-do compile }
|
|
|
4 { dg-options "-O2 -fdump-tree-optimized" }
|
|
|
5 { dg-require-effective-target int32plus } */
|
|
|
6
|
|
|
7 #define CAT(s, n) s ## n
|
|
|
8 #define FAIL(line) CAT (failure_on_line_, line)
|
|
|
9 #define PASS(line) CAT (success_on_line_, line)
|
|
|
10
|
|
|
11 /* Emit a call to a function named failure_on_line_NNN when VALUE
|
|
|
12 is not equal to the constant EXPECTED, otherwise emit a call to
|
|
|
13 function success_on_line_NNN. */
|
|
|
14 #define ASSERT(value, expected) \
|
|
|
15 do { \
|
|
|
16 extern void FAIL (__LINE__)(int); \
|
|
|
17 extern void PASS (__LINE__)(int); \
|
|
|
18 if (value == expected) \
|
|
|
19 PASS (__LINE__)(value); \
|
|
|
20 else \
|
|
|
21 FAIL (__LINE__)(value); \
|
|
|
22 } while (0)
|
|
|
23
|
|
|
24 /* Verify that EXPECT == snprintf(0, 0, ...). */
|
|
|
25 #define EQL(expect, ...) \
|
|
|
26 do { \
|
|
|
27 int n = __builtin_snprintf (0, 0, __VA_ARGS__); \
|
|
|
28 ASSERT (n, expect); \
|
|
|
29 } while (0)
|
|
|
30
|
|
131
|
31 static int ival (int i) { return i; }
|
|
111
|
32
|
|
|
33 /* Generate a signed int value in the specified range. */
|
|
|
34
|
|
|
35 static int
|
|
|
36 int_range (int min, int max)
|
|
|
37 {
|
|
|
38 extern int int_value (void);
|
|
|
39 int val = int_value ();
|
|
|
40 if (val < min || max < val)
|
|
|
41 val = min;
|
|
|
42 return val;
|
|
|
43 }
|
|
|
44
|
|
|
45 #define R(min, max) int_range (min, max)
|
|
|
46
|
|
|
47 void test_arg_int (int i, int n)
|
|
|
48 {
|
|
|
49 EQL (1, "%i", ival (0));
|
|
|
50 EQL (1, "%i", ival (1));
|
|
|
51 EQL (2, "%i%i", ival (0), ival (1));
|
|
|
52 EQL (3, "%i%i%i", ival (0), ival (1), ival (9));
|
|
|
53 EQL (5, "%i %i %i", ival (0), ival (1), ival (9));
|
|
|
54
|
|
|
55 EQL (5, "%i %i %i", ival (0), ival (1), ival (9));
|
|
|
56
|
|
|
57 EQL (13, "%hhu.%hhu.%hhu.%hhu", ival (23), ival (78), ival (216), ival (135));
|
|
|
58
|
|
|
59 for (i = 0; i != 9; ++i)
|
|
|
60 EQL (1, "%i", i);
|
|
|
61
|
|
|
62 for (i = -n; i != n; ++i)
|
|
|
63 EQL (8, "%08x", i);
|
|
|
64
|
|
|
65 /* As a special case, a precision of zero with an argument of zero
|
|
|
66 results in zero bytes (unless modified by width). */
|
|
|
67 EQL (0, "%.0d", ival (0));
|
|
|
68 EQL (0, "%.0i", ival (0));
|
|
|
69 EQL (0, "%.0o", ival (0));
|
|
|
70 EQL (0, "%.0u", ival (0));
|
|
|
71 EQL (0, "%.0x", ival (0));
|
|
|
72
|
|
|
73 EQL (0, "%.*d", 0, ival (0));
|
|
|
74 EQL (0, "%.*i", 0, ival (0));
|
|
|
75 EQL (0, "%.*o", 0, ival (0));
|
|
|
76 EQL (0, "%.*u", 0, ival (0));
|
|
|
77 EQL (0, "%.*x", 0, ival (0));
|
|
|
78
|
|
|
79 EQL (1, "%1.0d", ival (0));
|
|
|
80 EQL (1, "%1.0i", ival (0));
|
|
|
81 EQL (1, "%1.0o", ival (0));
|
|
|
82 EQL (1, "%1.0u", ival (0));
|
|
|
83 EQL (1, "%1.0x", ival (0));
|
|
|
84
|
|
|
85 EQL (4, "%hhi", R (-128, -127));
|
|
|
86 EQL (3, "%hhi", R ( -99, -10));
|
|
|
87 EQL (2, "%hhi", R ( -9, -1));
|
|
|
88 EQL (1, "%hhi", R ( 0, 9));
|
|
|
89 EQL (1, "%hhi", R ( 0, 9));
|
|
|
90
|
|
|
91 EQL (1, "%1.0hhi", R ( 0, 1));
|
|
|
92 EQL (1, "%1.1hhi", R ( 0, 9));
|
|
|
93 EQL (2, "%1.2hhi", R ( 0, 9));
|
|
|
94 EQL (3, "%1.3hhi", R ( 0, 9));
|
|
|
95
|
|
|
96 EQL (1, "%hhi", R (1024, 1033));
|
|
|
97 EQL (2, "%hhi", R (1034, 1123));
|
|
|
98 EQL (1, "%hhu", R (1024, 1033));
|
|
|
99 EQL (2, "%hhu", R (1034, 1123));
|
|
|
100 }
|
|
|
101
|
|
|
102 void test_arg_string (const char *s)
|
|
|
103 {
|
|
|
104 EQL ( 0, "%-s", "");
|
|
|
105 EQL ( 1, "%%");
|
|
|
106 EQL ( 1, "%-s", "1");
|
|
|
107 EQL ( 2, "%-s", "12");
|
|
|
108 EQL ( 3, "%-s", "123");
|
|
|
109 EQL ( 5, "s=%s", "123");
|
|
|
110 EQL (10, "%%s=\"%s\"", "12345");
|
|
|
111
|
|
|
112 EQL ( 1, "%.*s", 1, "123");
|
|
|
113 EQL ( 2, "%.*s", 2, "123");
|
|
|
114 EQL ( 3, "%.*s", 3, "123");
|
|
|
115 EQL ( 3, "%.*s", 4, "123");
|
|
|
116
|
|
|
117 EQL ( 1, "%1.*s", 1, "123");
|
|
|
118 EQL ( 2, "%1.*s", 2, "123");
|
|
|
119 EQL ( 3, "%1.*s", 3, "123");
|
|
|
120 EQL ( 3, "%1.*s", 4, "123");
|
|
|
121 EQL ( 4, "%4.*s", 1, "123");
|
|
|
122 EQL ( 4, "%4.*s", 2, "123");
|
|
|
123 EQL ( 4, "%4.*s", 3, "123");
|
|
|
124 EQL ( 4, "%4.*s", 4, "123");
|
|
|
125 EQL ( 4, "%4.*s", 5, "123");
|
|
|
126
|
|
|
127 const char *a = "123";
|
|
|
128 const char *b = "456";
|
|
|
129
|
|
|
130 EQL ( 3, "%-s", s ? a : b);
|
|
|
131 EQL ( 0, "%.0s", s);
|
|
|
132 EQL ( 1, "%1.1s", s);
|
|
|
133 EQL ( 2, "%2.2s", s);
|
|
|
134 EQL ( 2, "%2.1s", s);
|
|
|
135 }
|
|
|
136
|
|
|
137 void test_arg_multiarg (int i, double d)
|
|
|
138 {
|
|
|
139 EQL (16, "%12i %s", i, "abc");
|
|
|
140 EQL (16, "%*i %s", 12, i, "abc");
|
|
|
141 }
|
|
|
142
|
|
|
143 /* Verify that EXPECT == vsnprintf(0, 0, ...). */
|
|
|
144 #define EQLv(expect, fmt, va) \
|
|
|
145 do { \
|
|
|
146 int n = __builtin_vsnprintf (0, 0, fmt, va); \
|
|
|
147 ASSERT (n, expect); \
|
|
|
148 } while (0)
|
|
|
149
|
|
|
150 void test_va_int (__builtin_va_list va)
|
|
|
151 {
|
|
|
152 EQLv ( 2, "%02hhx", va);
|
|
|
153 EQLv ( 4, "%04hx", va);
|
|
|
154 }
|
|
|
155
|
|
|
156 void test_va_multiarg (__builtin_va_list va)
|
|
|
157 {
|
|
|
158 EQLv ( 8, "%8x", va);
|
|
|
159 EQLv ( 8, "% 8x", va);
|
|
|
160 EQLv ( 9, "%9x", va);
|
|
|
161 EQLv (11, "%11o", va);
|
|
|
162 EQLv (12, "%12o", va);
|
|
|
163
|
|
|
164 EQLv (16, "%12i %3.2s", va);
|
|
|
165 }
|
|
|
166
|
|
|
167
|
|
|
168 /* { dg-final { scan-tree-dump-not "failure_on_line" "optimized"} }
|
|
|
169 { dg-final { scan-tree-dump-not "snprintf" "optimized"} } */
|
