diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 83ce8eb..fab8a4c 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -8331,21 +8331,6 @@ fold_builtin_bswap (tree fndecl, tree arg) return NULL_TREE; } -/* Return true if EXPR is the real constant contained in VALUE. */ - -static bool -real_dconstp (tree expr, const REAL_VALUE_TYPE *value) -{ - STRIP_NOPS (expr); - - return ((TREE_CODE (expr) == REAL_CST - && !TREE_OVERFLOW (expr) - && REAL_VALUES_EQUAL (TREE_REAL_CST (expr), *value)) - || (TREE_CODE (expr) == COMPLEX_CST - && real_dconstp (TREE_REALPART (expr), value) - && real_zerop (TREE_IMAGPART (expr)))); -} - /* A subroutine of fold_builtin to fold the various logarithmic functions. Return NULL_TREE if no simplification can me made. FUNC is the corresponding MPFR logarithm function. */ @@ -8360,17 +8345,6 @@ fold_builtin_logarithm (tree fndecl, tree arg, tree res; const enum built_in_function fcode = builtin_mathfn_code (arg); - /* Optimize log(e) = 1.0. We're never passed an exact 'e', - instead we'll look for 'e' truncated to MODE. So only do - this if flag_unsafe_math_optimizations is set. */ - if (flag_unsafe_math_optimizations && func == mpfr_log) - { - const REAL_VALUE_TYPE e_truncated = - real_value_truncate (TYPE_MODE (type), dconst_e ()); - if (real_dconstp (arg, &e_truncated)) - return build_real (type, dconst1); - } - /* Calculate the result when the argument is a constant. */ if ((res = do_mpfr_arg1 (arg, type, func, &dconst0, NULL, false))) return res; |