| /* Test that the compiler properly optimizes vector rotate instructions vector |
| into prot on SSE5 systems. */ |
| |
| /* { dg-do compile } */ |
| /* { dg-require-effective-target lp64 } */ |
| /* { dg-options "-O2 -msse5 -ftree-vectorize" } */ |
| |
| extern void exit (int); |
| |
| typedef long __m128i __attribute__ ((__vector_size__ (16), __may_alias__)); |
| |
| #define SIZE 10240 |
| |
| union { |
| __m128i i_align; |
| unsigned u32[SIZE]; |
| } a, b, c; |
| |
| void |
| right_rotate32_b (void) |
| { |
| int i; |
| |
| for (i = 0; i < SIZE; i++) |
| a.u32[i] = (b.u32[i] >> ((sizeof (int) * 8) - 4)) | (b.u32[i] << 4); |
| } |
| |
| int |
| main () |
| { |
| right_rotate (); |
| exit (0); |
| } |
| |
| /* { dg-final { scan-assembler "prot" } } */ |
