Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/recip_sqrt_mult_1.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 84e7813d76e9 |
children |
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/* { dg-do compile } */ /* { dg-options "-Ofast -fdump-tree-recip" } */ /* { dg-additional-options "-fcompare-debug" { target { ! powerpc-ibm-aix* } } } */ double res, res2, tmp; void foo (double a, double b) { tmp = 1.0 / __builtin_sqrt (a); res = tmp * tmp; 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" } } */