| /* PR rtl-optimization/53942 */ |
| /* { dg-do compile } */ |
| /* { dg-options "-O2" } */ |
| /* { dg-additional-options "-mtune=pentium2" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */ |
| |
| struct S |
| { |
| unsigned short w[3]; |
| unsigned int x, y; |
| }; |
| |
| struct S *baz (void); |
| |
| __attribute__ ((noinline)) |
| static unsigned char |
| foo (struct S *x, unsigned char y) |
| { |
| unsigned char c = 0; |
| unsigned char v = x->w[0]; |
| c |= v; |
| v = ((x->w[1]) & (1 << y)) ? 1 : 0; |
| c |= v << 1; |
| v = ((x->w[2]) & 0xff) & (1 << y); |
| c |= v << 2; |
| return c; |
| } |
| |
| void |
| bar (void) |
| { |
| struct S *s = baz (); |
| s->x = foo (s, 6); |
| s->y = foo (s, 7); |
| } |
