1/* { dg-options { -nostartfiles below100.o -Tbelow100.ld -O2 } } */ 2/* { dg-final { scan-assembler "clr1 32533,#7" } } */ 3 4typedef struct 5{ 6 unsigned short b0:1; 7 unsigned short b1:1; 8 unsigned short b2:1; 9 unsigned short b3:1; 10 unsigned short b4:1; 11 unsigned short b5:1; 12 unsigned short b6:1; 13 unsigned short b7:1; 14 unsigned short b8:1; 15 unsigned short b9:1; 16 unsigned short b10:1; 17 unsigned short b11:1; 18 unsigned short b12:1; 19 unsigned short b13:1; 20 unsigned short b14:1; 21 unsigned short b15:1; 22} BitField; 23 24#define SFR (*((volatile BitField*)0x7f14)) 25unsigned short *p = (unsigned short *) 0x7f14; 26 27void 28Do (void) 29{ 30 SFR.b15 = 0; 31} 32 33int 34main (void) 35{ 36 *p = 0xedcb; 37 Do (); 38 return (*p == 0x6dcb) ? 0 : 1; 39} 40