Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/alias-16.c @ 158:494b0b89df80 default tip
...
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
---|---|
date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
children |
line wrap: on
line source
/* { dg-do compile } */ /* { dg-options "-Wstrict-aliasing=1 -fstrict-aliasing" } */ struct incomplete; struct s1 { int i; }; struct s2 { double d; }; void f (int *i, double *d, struct s1 *s1, struct s2 *s2, char *c) { (char *) i; (char *) d; (char *) s1; (char *) s2; (char *) c; (int *) i; (int *) d; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (int *) s1; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (int *) s2; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (int *) c; (double *) i; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (double *) d; (double *) s1; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (double *) s2; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (double *) c; (struct incomplete *) i; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (struct incomplete *) d; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (struct incomplete *) s1; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (struct incomplete *) s2; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (struct incomplete *) c; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (struct s1 *) i; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (struct s1 *) d; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (struct s1 *) s1; (struct s1 *) s2; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (struct s1 *) c; (struct s2 *) i; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (struct s2 *) d; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (struct s2 *) s1; /* { dg-warning "dereferencing type-punned pointer might break strict-aliasing rules" } */ (struct s2 *) s2; (struct s2 *) c; }