// Test for oversized bitfield alignment in structs on IA-32 // { dg-do run { target i?86-*-* } } // { dg-options "-O2" } // Cygwin and mingw32 default to MASK_ALIGN_DOUBLE. Override to ensure // 4-byte alignment. // { dg-options "-mno-align-double" { target i?86-*-cygwin* i?86-*-mingw* } } // { dg-skip-if "" { i?86-*-* } { "-m64" } { "" } } 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; }