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Commit | Line | Data |
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10b6a274 ZW |
1 | /* Verify that constants in memory, referenced only by dead code, |
2 | are not emitted to the object file. | |
3 | FIXME: Not presently possible to apply -pedantic to code with | |
4 | complex constants in it. The __extension__ should shut up the | |
5 | warning but doesn't. (Hard to fix -- the lexer is not aware of | |
6 | the parser's state.) */ | |
7 | ||
8 | /* { dg-do compile } */ | |
9 | /* { dg-options "-O2 -std=c99" } */ | |
37495922 | 10 | /* { dg-final { scan-assembler-not "L\\\$?C\[^A-Z\]" } } */ |
10b6a274 ZW |
11 | |
12 | #define I (__extension__ 1.0iF) | |
13 | ||
14 | struct S { int a; double b[2]; void *c; }; | |
15 | ||
16 | extern void use_str(const char *); | |
17 | extern void use_S(const struct S *); | |
18 | extern void use_cplx(__complex__ double); | |
19 | ||
20 | static inline int | |
21 | returns_23(void) { return 23; } | |
22 | ||
23 | void | |
24 | test1(void) | |
25 | { | |
26 | if (returns_23() == 23) | |
27 | return; | |
28 | ||
29 | use_str("waltz, nymph, for quick jigs vex bud"); | |
30 | use_S(&(const struct S){12, {3.1415, 2.1828}, 0 }); | |
31 | use_cplx(3.1415 + 2.1828*I); | |
32 | } | |
33 | ||
34 | void | |
35 | test2(void) | |
36 | { | |
37 | const char *str = "pack my box with five dozen liquor jugs"; | |
38 | const struct S S = { 23, { 1.414, 1.618 }, 0 }; | |
39 | const __complex__ double cplx = 1.414 + 1.618*I; | |
40 | ||
41 | if (returns_23() == 23) | |
42 | return; | |
43 | ||
44 | use_str(str); | |
45 | use_S(&S); | |
46 | use_cplx(cplx); | |
47 | } | |
48 |