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7b7e6ecd EB |
1 | /* PR middle-end/33088 */ |
2 | /* Origin: Joseph S. Myers <jsm28@gcc.gnu.org> */ | |
3 | ||
9275f73a | 4 | /* { dg-do run { target i?86-*-linux* i?86-*-gnu* x86_64-*-linux* } } */ |
7b7e6ecd EB |
5 | /* { dg-options "-std=c99 -O -ffloat-store -lm" } */ |
6 | ||
7 | #include <fenv.h> | |
8 | #include <stdlib.h> | |
9 | ||
10 | volatile int x[1024]; | |
11 | ||
12 | void __attribute__((noinline)) | |
13 | fill_stack (void) | |
14 | { | |
15 | volatile int y[1024]; | |
16 | int i; | |
17 | for (i = 0; i < 1024; i++) | |
18 | y[i] = 0x7ff00000; | |
19 | for (i = 0; i < 1024; i++) | |
20 | x[i] = y[i]; | |
21 | } | |
22 | ||
23 | volatile _Complex double vc; | |
24 | ||
25 | void __attribute__((noinline)) | |
26 | use_complex (_Complex double c) | |
27 | { | |
28 | vc = c; | |
29 | } | |
30 | ||
31 | double t0, t1, t2, t3; | |
32 | ||
33 | #define USE_COMPLEX(X, R, C) \ | |
34 | do { __real__ X = R; __imag__ X = C; use_complex (X); } while (0) | |
35 | ||
36 | void __attribute__((noinline)) | |
37 | use_stack (void) | |
38 | { | |
39 | _Complex double a, b, c, d; | |
40 | USE_COMPLEX (a, t0, t1); | |
41 | USE_COMPLEX (b, t1, t2); | |
42 | USE_COMPLEX (c, t2, t3); | |
43 | USE_COMPLEX (d, t3, t0); | |
44 | } | |
45 | ||
46 | int | |
47 | main (void) | |
48 | { | |
49 | fill_stack (); | |
50 | feclearexcept (FE_INVALID); | |
51 | use_stack (); | |
52 | if (fetestexcept (FE_INVALID)) | |
53 | abort (); | |
54 | exit (0); | |
55 | } |