diff options
| author | Giuliano Belinassi <giuliano.belinassi@usp.br> | 2018-10-11 21:06:12 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2018-10-11 15:06:12 -0600 |
| commit | 121ef08b0b964ff4e7072a6af14613e68788abc4 (patch) | |
| tree | e967a89e2270c12ad7a8fa8d6fbf6f4a32132efd /gcc/real.h | |
| parent | ea010af6b4d780261b791999e43ba056edce2af0 (diff) | |
re PR tree-optimization/86829 (Missing sin(atan(x)) and cos(atan(x)) optimizations)
PR tree-optimization/86829
* match.pd (sin (atan (x))): New simplification rules.
(cos (atan (x))): Likewise.
* real.c (build_sinatan_real): New function.
* real.h (build_sinatan_real): Prototype.
PR tree-optimization/86829
* gcc.dg/sinatan-1.c: New test.
* gcc.dg/sinatan-2.c: New test.
* gcc.dg/sinatan-3.c: New test.
From-SVN: r265064
Diffstat (limited to 'gcc/real.h')
| -rw-r--r-- | gcc/real.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/real.h b/gcc/real.h index 0ce42565708..561d0fda129 100644 --- a/gcc/real.h +++ b/gcc/real.h @@ -523,4 +523,8 @@ extern void real_from_integer (REAL_VALUE_TYPE *, format_helper, const wide_int_ref &, signop); #endif +/* Fills r with the largest value such that 1 + r*r won't overflow. + This is used in both sin (atan (x)) and cos (atan(x)) optimizations. */ +extern void build_sinatan_real (REAL_VALUE_TYPE *, tree); + #endif /* ! GCC_REAL_H */ |