Mercurial > hg > CbC > CbC_gcc

annotate gcc/testsuite/gcc.dg/recip_sqrt_mult_1.c @ 131:84e7813d76e9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents
children 1830386684a0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
131
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
1 /* { dg-do compile } */
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
2 /* { dg-options "-Ofast -fdump-tree-recip" } */
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
3
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
4 double res, res2, tmp;
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
5 void
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
6 foo (double a, double b)
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
7 {
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
8 tmp = 1.0 / __builtin_sqrt (a);
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
9 res = tmp * tmp;
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
10 res2 = a * tmp;
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
11 }
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
12
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
13 /* { dg-final { scan-tree-dump "Optimizing reciprocal sqrt multiplications" "recip" } } */
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
14 /* { dg-final { scan-tree-dump "Replacing squaring multiplication" "recip" } } */
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
15 /* { dg-final { scan-tree-dump "Replacing original division" "recip" } } */