Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/extract_recip_3.c @ 131:84e7813d76e9
gcc-8.2
| author | mir3636 |
|---|---|
| date | Thu, 25 Oct 2018 07:37:49 +0900 |
| parents | |
| children |
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| 111:04ced10e8804 | 131:84e7813d76e9 |
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| 1 /* { dg-do compile } */ | |
| 2 /* { dg-options "-Ofast -fdump-tree-optimized-raw" } */ | |
| 3 | |
| 4 float | |
| 5 extract_square (float *a, float *b, float x, float y) | |
| 6 { | |
| 7 *a = 3 / (y * y); | |
| 8 *b = 5 / (y * y); | |
| 9 | |
| 10 return x / (y * y); | |
| 11 } | |
| 12 | |
| 13 /* Don't expect the 'powmult' (calculation of y * y) | |
| 14 to be deleted until a later pass, so look for one | |
| 15 more multiplication than strictly necessary. */ | |
| 16 float | |
| 17 extract_recip (float *a, float *b, float x, float y, float z) | |
| 18 { | |
| 19 *a = 7 / y; | |
| 20 *b = x / (y * y); | |
| 21 | |
| 22 return z / y; | |
| 23 } | |
| 24 | |
| 25 /* 4 multiplications in 'extract_square', and 4 in 'extract_recip'. */ | |
| 26 /* { dg-final { scan-tree-dump-times "mult_expr" 8 "optimized" } } */ | |
| 27 | |
| 28 /* 1 division in 'extract_square', 1 division in 'extract_recip'. */ | |
| 29 /* { dg-final { scan-tree-dump-times "rdiv_expr" 2 "optimized" } } */ |