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.) */
8 /* { dg-do compile } */
9 /* { dg-options "-O2 -std=c99" } */
10 /* This test fails on ARM and Xtensa cores because we use a block move to
11 initialize "S" in test2, and GCC is not clever enough to eliminate
13 /* { dg-final { scan-assembler-not "L\\\$?C\[^A-Z\]" { xfail arm-*-* strongarm-*-* xscale-*-* powerpc*-*-aix* xtensa-*-* } } } */
15 #define I (__extension__ 1.0iF)
17 struct S
{ int a
; double b
[2]; void *c
; };
19 extern void use_str(const char *);
20 extern void use_S(const struct S
*);
21 extern void use_cplx(__complex__
double);
24 returns_23(void) { return 23; }
29 if (returns_23() == 23)
32 use_str("waltz, nymph, for quick jigs vex bud");
33 use_S(&(const struct S
){12, {3.1415, 2.1828}, 0 });
34 use_cplx(3.1415 + 2.1828*I
);
40 const char *str
= "pack my box with five dozen liquor jugs";
41 const struct S S
= { 23, { 1.414, 1.618 }, 0 };
42 const __complex__
double cplx
= 1.414 + 1.618*I
;
44 if (returns_23() == 23)