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-rw-r--r--gcc/builtins.c19
1 files changed, 6 insertions, 13 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c
index 777206c..9f51553 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -7200,22 +7200,15 @@ fold_builtin_sqrt (tree arglist, tree type)
enum built_in_function fcode;
tree arg = TREE_VALUE (arglist);
-
+ tree res;
+
if (!validate_arglist (arglist, REAL_TYPE, VOID_TYPE))
return NULL_TREE;
- /* Optimize sqrt of constant value. */
- if (TREE_CODE (arg) == REAL_CST
- && !TREE_OVERFLOW (arg))
- {
- REAL_VALUE_TYPE r, x;
-
- x = TREE_REAL_CST (arg);
- if (real_sqrt (&r, TYPE_MODE (type), &x)
- || (!flag_trapping_math && !flag_errno_math))
- return build_real (type, r);
- }
-
+ /* Calculate the result when the argument is a constant. */
+ if ((res = do_mpfr_arg1 (arg, type, mpfr_sqrt, &dconst0, NULL, true)))
+ return res;
+
/* Optimize sqrt(expN(x)) = expN(x*0.5). */
fcode = builtin_mathfn_code (arg);
if (flag_unsafe_math_optimizations && BUILTIN_EXPONENT_P (fcode))