| /* A test for various conversions of chrecs. */ |
| |
| /* { dg-do compile { target i?86-*-* x86_64-*-* } } */ |
| /* { dg-options "-O2 -fdump-tree-optimized" } */ |
| |
| void blas (signed char xxx); |
| void blau (unsigned char xxx); |
| |
| void tst(void) |
| { |
| unsigned i; |
| |
| for (i = 0; i < 129; i++) /* This truncation to char has to be preserved. */ |
| blas ((signed char) i); |
| for (i = 0; i < 128; i++) /* This one is not necessary, VRP eliminates it. */ |
| blas ((signed char) i); |
| for (i = 0; i < 127; i++) /* This one is not necessary, IVOPTS eliminates it. */ |
| blas ((signed char) i); |
| for (i = 0; i < 256; i++) /* This one is not necessary, VRP eliminates it. */ |
| blau ((unsigned char) i); |
| for (i = 0; i < 257; i++) /* This one is necessary. */ |
| blau ((unsigned char) i); |
| } |
| |
| /* { dg-final { scan-tree-dump-times "& 255" 1 "optimized" } } */ |
| /* { dg-final { scan-tree-dump-times "= \\(signed char\\)" 1 "optimized" } } */ |
| |
