1 /* { dg-do compile } */
2 /* { dg-require-effective-target ia32 } */
3 /* { dg-options "-mpreferred-stack-boundary=2 -march=i586 -O2 -fomit-frame-pointer" } */
4
5 extern void *foo(void *a, const void *b, unsigned c);
6
7 extern inline void *
bar(void * a,const void * b,unsigned c)8 bar(void *a, const void *b, unsigned c)
9 {
10 int d0, d1, d2;
11 __asm__ __volatile__(
12 "" :
13 "=&c" (d0), "=&D" (d1), "=&S" (d2) :
14 "0" (c/4), "q" (c), "1" (a), "2" (b) :
15 "memory");
16 return a;
17 }
18
19 typedef struct {
20 unsigned char a;
21 unsigned b : 2;
22 unsigned c : 4;
23 unsigned d : 2;
24 } *baz;
25
26 static int
dead(unsigned short * v,char * w,unsigned char * x,int y,int z)27 dead(unsigned short *v, char *w, unsigned char *x, int y, int z)
28 {
29 int i = 0;
30 unsigned short j = *v;
31
32 while (y > 0) {
33 ((baz)x)->a = j;
34 ((baz)x)->b = 0;
35 ((baz)x)->c = 0;
36 ((baz)x)->d = 0;
37 __builtin_constant_p(i) ? foo(x, w, i) : bar(x, w, i);
38 }
39 return z - y;
40 }
41