1 /* A test for various conversions of chrecs. */
2
3 /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
4 /* { dg-options "-O2 -fdump-tree-optimized" } */
5
6 void blas (signed char xxx);
7 void blau (unsigned char xxx);
8
tst(void)9 void tst(void)
10 {
11 unsigned i;
12
13 for (i = 0; i < 129; i++) /* This truncation to char has to be preserved. */
14 blas ((signed char) i);
15 for (i = 0; i < 128; i++) /* This one is not necessary, VRP eliminates it. */
16 blas ((signed char) i);
17 for (i = 0; i < 127; i++) /* This one is not necessary, IVOPTS eliminates it. */
18 blas ((signed char) i);
19 for (i = 0; i < 256; i++) /* This one is not necessary, VRP eliminates it. */
20 blau ((unsigned char) i);
21 for (i = 0; i < 257; i++) /* This one is necessary. */
22 blau ((unsigned char) i);
23 }
24
25 /* { dg-final { scan-tree-dump-times "& 255" 1 "optimized" } } */
26 /* { dg-final { scan-tree-dump-times "= \\(signed char\\)" 1 "optimized" } } */
27
28