Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/const-elim-1.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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68:561a7518be6b | 111:04ced10e8804 |
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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" } */ | |
10 /* { dg-final { scan-assembler-not "L\\\$?C\[^A-Z\]" } } */ | |
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 |