Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/recip_sqrt_mult_5.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | |
children | 1830386684a0 |
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/* { dg-do compile } */ /* { dg-options "-Ofast -fdump-tree-recip" } */ /* We want to do the recip_sqrt transformations here there is already a multiplication on the main path. */ double res, res2, tmp; void foo (double a, double b, int c, int d) { tmp = 1.0 / __builtin_sqrt (a); res = tmp * tmp; if (d) res2 = a * tmp; } /* { dg-final { scan-tree-dump "Optimizing reciprocal sqrt multiplications" "recip" } } */ /* { dg-final { scan-tree-dump "Replacing squaring multiplication" "recip" } } */ /* { dg-final { scan-tree-dump "Replacing original division" "recip" } } */