|
111
|
1 /* PR rtl-optimization/53942 */
|
|
|
2 /* { dg-do compile } */
|
|
|
3 /* { dg-options "-O2" } */
|
|
|
4 /* { dg-additional-options "-mtune=pentium2" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
|
|
|
5
|
|
|
6 struct S
|
|
|
7 {
|
|
|
8 unsigned short w[3];
|
|
|
9 unsigned int x, y;
|
|
|
10 };
|
|
|
11
|
|
|
12 struct S *baz (void);
|
|
|
13
|
|
|
14 __attribute__ ((noinline))
|
|
|
15 static unsigned char
|
|
|
16 foo (struct S *x, unsigned char y)
|
|
|
17 {
|
|
|
18 unsigned char c = 0;
|
|
|
19 unsigned char v = x->w[0];
|
|
|
20 c |= v;
|
|
|
21 v = ((x->w[1]) & (1 << y)) ? 1 : 0;
|
|
|
22 c |= v << 1;
|
|
|
23 v = ((x->w[2]) & 0xff) & (1 << y);
|
|
|
24 c |= v << 2;
|
|
|
25 return c;
|
|
|
26 }
|
|
|
27
|
|
|
28 void
|
|
|
29 bar (void)
|
|
|
30 {
|
|
|
31 struct S *s = baz ();
|
|
|
32 s->x = foo (s, 6);
|
|
|
33 s->y = foo (s, 7);
|
|
|
34 }
|
