// Test for oversized bitfield alignment in structs on IA-32
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// Test for oversized bitfield alignment in structs on IA-32
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// { dg-do run { target i?86-*-* x86_64-*-* } }
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// { dg-do run { target i?86-*-* x86_64-*-* } }
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// { dg-options "-O2" }
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// { dg-options "-O2" }
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// Cygwin and mingw32 default to MASK_ALIGN_DOUBLE. Override to ensure
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// Cygwin and mingw32 default to MASK_ALIGN_DOUBLE. Override to ensure
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// 4-byte alignment.
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// 4-byte alignment.
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// { dg-options "-mno-align-double" { target i?86-*-cygwin* i?86-*-mingw* } }
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// { dg-options "-mno-align-double" { target i?86-*-cygwin* i?86-*-mingw* } }
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// { dg-require-effective-target ilp32 }
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// { dg-require-effective-target ilp32 }
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struct A
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struct A
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{
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{
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char a;
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char a;
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int b : 224; // { dg-warning "exceeds its type" "" }
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int b : 224; // { dg-warning "exceeds its type" "" }
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char c;
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char c;
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} a, a4[4];
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} a, a4[4];
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struct B
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struct B
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{
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{
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char d;
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char d;
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A e;
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A e;
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char f;
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char f;
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} b;
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} b;
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struct C
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struct C
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{
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{
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char g;
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char g;
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long long h : 64;
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long long h : 64;
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char i;
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char i;
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} c, c4[4];
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} c, c4[4];
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struct D
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struct D
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{
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{
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char j;
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char j;
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C k;
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C k;
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char l;
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char l;
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} d;
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} d;
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struct E
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struct E
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{
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{
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char m;
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char m;
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long long n : 160; // { dg-warning "exceeds its type" "" }
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long long n : 160; // { dg-warning "exceeds its type" "" }
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char o;
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char o;
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} e, e4[4];
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} e, e4[4];
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struct F
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struct F
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{
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{
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char p;
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char p;
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E q;
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E q;
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char r;
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char r;
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} f;
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} f;
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int main (void)
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int main (void)
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{
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{
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if (&a.c - &a.a != 32)
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if (&a.c - &a.a != 32)
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return 1;
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return 1;
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if (sizeof (a) != 36)
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if (sizeof (a) != 36)
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return 2;
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return 2;
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if (sizeof (a4) != 4 * 36)
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if (sizeof (a4) != 4 * 36)
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return 3;
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return 3;
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if (sizeof (b) != 2 * 4 + 36)
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if (sizeof (b) != 2 * 4 + 36)
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return 4;
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return 4;
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if (__alignof__ (b.e) != 4)
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if (__alignof__ (b.e) != 4)
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return 5;
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return 5;
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if (&c.i - &c.g != 12)
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if (&c.i - &c.g != 12)
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return 6;
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return 6;
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if (sizeof (c) != 16)
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if (sizeof (c) != 16)
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return 7;
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return 7;
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if (sizeof (c4) != 4 * 16)
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if (sizeof (c4) != 4 * 16)
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return 8;
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return 8;
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if (sizeof (d) != 2 * 4 + 16)
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if (sizeof (d) != 2 * 4 + 16)
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return 9;
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return 9;
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if (__alignof__ (d.k) != 4)
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if (__alignof__ (d.k) != 4)
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return 10;
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return 10;
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if (&e.o - &e.m != 24)
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if (&e.o - &e.m != 24)
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return 11;
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return 11;
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if (sizeof (e) != 28)
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if (sizeof (e) != 28)
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return 12;
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return 12;
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if (sizeof (e4) != 4 * 28)
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if (sizeof (e4) != 4 * 28)
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return 13;
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return 13;
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if (sizeof (f) != 2 * 4 + 28)
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if (sizeof (f) != 2 * 4 + 28)
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return 14;
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return 14;
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if (__alignof__ (f.q) != 4)
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if (__alignof__ (f.q) != 4)
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return 15;
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return 15;
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return 0;
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return 0;
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}
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}
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