Mercurial > hg > CbC > CbC_gcc
comparison 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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| 111:04ced10e8804 | 131:84e7813d76e9 |
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| 1 /* { dg-do compile } */ | |
| 2 /* { dg-options "-Ofast -fdump-tree-recip" } */ | |
| 3 | |
| 4 /* We want to do the recip_sqrt transformations here there is already | |
| 5 a multiplication on the main path. */ | |
| 6 | |
| 7 double res, res2, tmp; | |
| 8 void | |
| 9 foo (double a, double b, int c, int d) | |
| 10 { | |
| 11 tmp = 1.0 / __builtin_sqrt (a); | |
| 12 res = tmp * tmp; | |
| 13 | |
| 14 if (d) | |
| 15 res2 = a * tmp; | |
| 16 } | |
| 17 | |
| 18 /* { dg-final { scan-tree-dump "Optimizing reciprocal sqrt multiplications" "recip" } } */ | |
| 19 /* { dg-final { scan-tree-dump "Replacing squaring multiplication" "recip" } } */ | |
| 20 /* { dg-final { scan-tree-dump "Replacing original division" "recip" } } */ |