diff options
Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/pr44468.c')
-rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/pr44468.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/pr44468.c b/gcc/testsuite/gcc.c-torture/execute/pr44468.c new file mode 100644 index 000000000..c4bd49265 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr44468.c @@ -0,0 +1,60 @@ +#include <stddef.h> + +struct S { + int i; + int j; +}; +struct R { + int k; + struct S a; +}; +struct Q { + float k; + struct S a; +}; +struct Q s; +int __attribute__((noinline,noclone)) +test1 (void *q) +{ + struct S *b = (struct S *)((char *)q + sizeof (int)); + s.a.i = 0; + b->i = 3; + return s.a.i; +} +int __attribute__((noinline,noclone)) +test2 (void *q) +{ + struct S *b = &((struct R *)q)->a; + s.a.i = 0; + b->i = 3; + return s.a.i; +} +int __attribute__((noinline,noclone)) +test3 (void *q) +{ + s.a.i = 0; + ((struct S *)((char *)q + sizeof (int)))->i = 3; + return s.a.i; +} +extern void abort (void); +int +main() +{ + if (sizeof (float) != sizeof (int) + || offsetof (struct R, a) != sizeof (int) + || offsetof (struct Q, a) != sizeof (int)) + return 0; + s.a.i = 1; + s.a.j = 2; + if (test1 ((void *)&s) != 3) + abort (); + s.a.i = 1; + s.a.j = 2; + if (test2 ((void *)&s) != 3) + abort (); + s.a.i = 1; + s.a.j = 2; + if (test3 ((void *)&s) != 3) + abort (); + return 0; +} |