Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tree-ssa/ssa-ifcombine-9.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-do compile } */ /* { dg-options "-O2 -fno-trapping-math -fdump-tree-ifcombine-details-blocks" } */ void f (); enum Sign { NEG=-1, ZERO, POS }; static inline enum Sign sign (double x) { if (x > 0) return POS; if (x < 0) return NEG; return ZERO; } void g (double x) { if (sign (x) == NEG) f(); } /* The above should be optimized to x < 0 by ifcombine. The transformation would also be legal with -ftrapping-math. */ /* { dg-final { scan-tree-dump "optimizing.* < " "ifcombine" } } */ /* { dg-final { scan-tree-dump-not "Invalid sum" "ifcombine" } } */