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| author | Roger Sayle <roger@eyesopen.com> | 2004-06-07 20:50:14 +0000 |
|---|---|---|
| committer | Roger Sayle <sayle@gcc.gnu.org> | 2004-06-07 20:50:14 +0000 |
| commit | 67057c537b7f1f895ff87f8616e8a122f886f1bf (patch) | |
| tree | cf683ee1008a7ca53b18dd77effb242f594c9a57 /gcc/tree-gimple.c | |
| parent | f29b9db93eb2f3508d2376103af158675f1ee2b0 (diff) | |
| download | gcc-67057c537b7f1f895ff87f8616e8a122f886f1bf.zip gcc-67057c537b7f1f895ff87f8616e8a122f886f1bf.tar.gz gcc-67057c537b7f1f895ff87f8616e8a122f886f1bf.tar.bz2 | |
real.c (real_copysign): New function to implement libm's copysign.
* real.c (real_copysign): New function to implement libm's copysign.
* real.h (real_copysign): Prototype here.
* fold-const.c (tree_expr_nonnegative_p): The result of sqrt, sqrtf
and sqrtl can be negative, as sqrt(-0.0) = -0.0. Correct whitespace.
* builtins.c (fold_builtin_isascii, fold_builtin_toascii,
fold_builtin_isdigit): Add function prototypes.
(fold_builtin_copysign): New function to fold copysign, copysignf
and copysignl. Optimize copysign(x,x) as x. Evaluate copysign of
constant arguments at compile-time using real_copysign. Fold
copysign(X,Y) as fabs(X) if Y is always non-negative.
(fold_builtin_1): Correct minor whitespace/style issues. Call
fold_builtin_copysign for BUILT_IN_COPYSIGN{,F,L}.
* gcc.dg/builtins-41.c: New test case.
* gcc.dg/builtins-42.c: New test case.
From-SVN: r82721
Diffstat (limited to 'gcc/tree-gimple.c')
0 files changed, 0 insertions, 0 deletions