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// Test for oversized bitfield alignment in structs on IA-32
// { dg-do run { target { { i?86-*-* x86_64-*-* } && ia32 } } }
// { dg-options "-O2" }
// Cygwin and mingw default to MASK_ALIGN_DOUBLE. Override to ensure
// 4-byte alignment.
// { dg-additional-options "-mno-align-double" { target i?86-*-cygwin* i?86-*-mingw* } }
// As for mingw target the ms-bitfield switch is activated by default,
// make sure for this test that it is disabled.
// { dg-additional-options "-mno-ms-bitfields" { target i?86-*-mingw* } }
struct A
{
char a;
int b : 224; // { dg-warning "exceeds its type" }
char c;
} a, a4[4];
struct B
{
char d;
A e;
char f;
} b;
struct C
{
char g;
long long h : 64;
char i;
} c, c4[4];
struct D
{
char j;
C k;
char l;
} d;
struct E
{
char m;
long long n : 160; // { dg-warning "exceeds its type" }
char o;
} e, e4[4];
struct F
{
char p;
E q;
char r;
} f;
int main (void)
{
if (&a.c - &a.a != 32)
return 1;
if (sizeof (a) != 36)
return 2;
if (sizeof (a4) != 4 * 36)
return 3;
if (sizeof (b) != 2 * 4 + 36)
return 4;
if (__alignof__ (b.e) != 4)
return 5;
if (&c.i - &c.g != 12)
return 6;
if (sizeof (c) != 16)
return 7;
if (sizeof (c4) != 4 * 16)
return 8;
if (sizeof (d) != 2 * 4 + 16)
return 9;
if (__alignof__ (d.k) != 4)
return 10;
if (&e.o - &e.m != 24)
return 11;
if (sizeof (e) != 28)
return 12;
if (sizeof (e4) != 4 * 28)
return 13;
if (sizeof (f) != 2 * 4 + 28)
return 14;
if (__alignof__ (f.q) != 4)
return 15;
return 0;
}
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