Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tree-ssa/scev-cast.c @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 04ced10e8804 |
children |
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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 (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" } } */