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/* APPLE LOCAL file */
#include <stdio.h>
#include <string.h>
/* This is the same data structure originally supplied by a user. */
/* { dg-do run { target powerpc*-*-darwin* } } */
/*
Fun with bitfields!
This needs to generate the same output when compiled with CodeWarrior and
with XCode. Following is the output I see.
CodeWarrior:
u1: 0x0000808b
u2: 0x51010001 0x00004045
XCode:
u1: 0xa2020002
u2: 0x00010116 0x44040004
*/
#pragma reverse_bitfields on
typedef struct
{
union
{
unsigned int i1;
struct
{
unsigned int b1: 1;
unsigned int b2: 2;
unsigned int b3: 4;
unsigned int b4: 8;
unsigned int b5: 16;
} bits;
} u1;
union
{
struct
{
unsigned int i2;
unsigned int i3;
} ints;
struct
{
unsigned int b1: 16;
unsigned int b2: 8;
unsigned int b3: 4;
unsigned int b4: 2;
unsigned int b5: 1;
unsigned int b6: 2;
unsigned int b7: 4;
unsigned int b8: 8;
unsigned int b9: 16;
} bits;
} u2;
} Bitfields;
int main()
{
Bitfields bitfields;
memset(&bitfields, 0, sizeof(bitfields));
bitfields.u1.bits.b1 = 1;
bitfields.u1.bits.b2 = 1;
bitfields.u1.bits.b3 = 1;
bitfields.u1.bits.b4 = 1;
bitfields.u1.bits.b5 = 1;
bitfields.u2.bits.b1 = 1;
bitfields.u2.bits.b2 = 1;
bitfields.u2.bits.b3 = 1;
bitfields.u2.bits.b4 = 1;
bitfields.u2.bits.b5 = 1;
bitfields.u2.bits.b6 = 1;
bitfields.u2.bits.b7 = 1;
bitfields.u2.bits.b8 = 1;
bitfields.u2.bits.b9 = 1;
if (bitfields.u1.i1 != 0x0000808b ||
bitfields.u2.ints.i2 != 0x51010001 ||
bitfields.u2.ints.i3 != 0x00004045)
return 42;
return 0;
}
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