diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/20031202-1.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/20031202-1.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/20031202-1.c b/gcc/testsuite/gcc.dg/20031202-1.c new file mode 100644 index 0000000..424e01b --- /dev/null +++ b/gcc/testsuite/gcc.dg/20031202-1.c @@ -0,0 +1,44 @@ +/* { dg-do run } */ +/* { dg-options "-O2" } */ +/* { dg-options "-O2 -mtune=i686" { target i?86-*-* } } */ + +extern void abort (void); +extern void exit (int); + +struct A { char p[6]; } __attribute__((packed)); +struct B { + struct A a; + void * const b; + struct A const * const c; + struct A const *d; +}; + +char v; + +int __attribute__((noinline)) +foo (struct B *b) +{ + int i; + for (i = 0; i < 6; ++i) + if (b->a.p[i]) + abort (); + if (b->b != &v || b->c || b->d) + abort (); + return 12; +} + +int __attribute__((noinline)) +bar (void *x) +{ + __asm __volatile ("" : "=r" (x) : "0" (x)); + struct B y = { .b = x, .c = (void *) 0 }; + return foo (&y) + 1; +} + +int +main (void) +{ + if (bar (&v) != 13) + abort (); + exit (0); +} |