Viewing file:  pr108498-2.c (2.75 KB) -rw-r--r--
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/* PR tree-optimization/108498 */
struct U { char c[16]; };
struct V { char c[16]; };
struct S { unsigned int a : 3, b : 8, c : 21; struct U d; unsigned int e; struct V f; unsigned int g : 5, h : 27; };
struct T { unsigned int a : 16, b : 8, c : 8; struct U d; unsigned int e; struct V f; unsigned int g : 5, h : 27; };
__attribute__((noipa)) void
foo (struct S *p)
{
p->b = 231;
p->c = 42;
p->d = (struct U) { "abcdefghijklmno" };
p->e = 0xdeadbeef;
p->f = (struct V) { "ABCDEFGHIJKLMNO" };
}
__attribute__((noipa)) void
bar (struct S *p)
{
p->b = 231;
p->c = 42;
p->d = (struct U) { "abcdefghijklmno" };
p->e = 0xdeadbeef;
p->f = (struct V) { "ABCDEFGHIJKLMNO" };
p->g = 12;
}
__attribute__((noipa)) void
baz (struct T *p)
{
p->c = 42;
p->d = (struct U) { "abcdefghijklmno" };
p->e = 0xdeadbeef;
p->f = (struct V) { "ABCDEFGHIJKLMNO" };
p->g = 12;
}
int
main ()
{
if (__CHAR_BIT__ != 8 || __SIZEOF_INT__ != 4)
return 0;
struct S s = {};
struct T t = {};
foo (&s);
if (s.a != 0 || s.b != 231 || s.c != 42
|| __builtin_memcmp (&s.d.c, "abcdefghijklmno", 16) || s.e != 0xdeadbeef
|| __builtin_memcmp (&s.f.c, "ABCDEFGHIJKLMNO", 16) || s.g != 0 || s.h != 0)
__builtin_abort ();
__builtin_memset (&s, 0, sizeof (s));
s.a = 7;
s.g = 31;
s.h = (1U << 27) - 1;
foo (&s);
if (s.a != 7 || s.b != 231 || s.c != 42
|| __builtin_memcmp (&s.d.c, "abcdefghijklmno", 16) || s.e != 0xdeadbeef
|| __builtin_memcmp (&s.f.c, "ABCDEFGHIJKLMNO", 16) || s.g != 31 || s.h != (1U << 27) - 1)
__builtin_abort ();
__builtin_memset (&s, 0, sizeof (s));
bar (&s);
if (s.a != 0 || s.b != 231 || s.c != 42
|| __builtin_memcmp (&s.d.c, "abcdefghijklmno", 16) || s.e != 0xdeadbeef
|| __builtin_memcmp (&s.f.c, "ABCDEFGHIJKLMNO", 16) || s.g != 12 || s.h != 0)
__builtin_abort ();
__builtin_memset (&s, 0, sizeof (s));
s.a = 7;
s.g = 31;
s.h = (1U << 27) - 1;
bar (&s);
if (s.a != 7 || s.b != 231 || s.c != 42
|| __builtin_memcmp (&s.d.c, "abcdefghijklmno", 16) || s.e != 0xdeadbeef
|| __builtin_memcmp (&s.f.c, "ABCDEFGHIJKLMNO", 16) || s.g != 12 || s.h != (1U << 27) - 1)
__builtin_abort ();
baz (&t);
if (t.a != 0 || t.b != 0 || t.c != 42
|| __builtin_memcmp (&t.d.c, "abcdefghijklmno", 16) || t.e != 0xdeadbeef
|| __builtin_memcmp (&t.f.c, "ABCDEFGHIJKLMNO", 16) || t.g != 12 || t.h != 0)
__builtin_abort ();
__builtin_memset (&s, 0, sizeof (s));
t.a = 7;
t.b = 255;
t.g = 31;
t.h = (1U << 27) - 1;
baz (&t);
if (t.a != 7 || t.b != 255 || t.c != 42
|| __builtin_memcmp (&t.d.c, "abcdefghijklmno", 16) || t.e != 0xdeadbeef
|| __builtin_memcmp (&t.f.c, "ABCDEFGHIJKLMNO", 16) || t.g != 12 || t.h != (1U << 27) - 1)
__builtin_abort ();
return 0;
}
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