| /* { dg-do compile } */ |
| /* { dg-require-effective-target bswap } */ |
| /* { dg-options "-O2 -fdump-tree-optimized -fno-inline-functions" } */ |
| /* { dg-additional-options "-march=z900" { target s390-*-* } } */ |
| |
| struct L { unsigned int l[2]; }; |
| union U { double a; struct L l; } u; |
| |
| void |
| foo (double a, struct L *p) |
| { |
| u.a = a; |
| struct L l = u.l, m; |
| m.l[0] = (((l.l[1] & 0xff000000) >> 24) |
| | ((l.l[1] & 0x00ff0000) >> 8) |
| | ((l.l[1] & 0x0000ff00) << 8) |
| | ((l.l[1] & 0x000000ff) << 24)); |
| m.l[1] = (((l.l[0] & 0xff000000) >> 24) |
| | ((l.l[0] & 0x00ff0000) >> 8) |
| | ((l.l[0] & 0x0000ff00) << 8) |
| | ((l.l[0] & 0x000000ff) << 24)); |
| *p = m; |
| } |
| |
| void |
| bar (double a, struct L *p) |
| { |
| foo (a, p); |
| } |
| |
| /* { dg-final { scan-tree-dump-times "= __builtin_bswap32 \\\(" 2 "optimized" } } */ |
