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/* A test for various conversions of chrecs. */
/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
void blas (char xxx);
void blau (unsigned char xxx);
void tst(void)
{
unsigned i;
for (i = 0; i < 128; i++) /* This cast to char has to be preserved. */
blas ((char) i);
for (i = 0; i < 127; i++) /* And this one does not. */
blas ((char) i);
for (i = 0; i < 255; i++) /* This cast is not necessary. */
blau ((unsigned char) i);
for (i = 0; i < 256; i++)
blau ((unsigned char) i); /* This one is necessary. */
}
/* { dg-final { scan-tree-dump-times "= \\(unsigned char\\)" 1 "optimized" } } */
/* { dg-final { scan-tree-dump-times "= \\(char\\)" 1 "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */
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