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| author | Kaveh R. Ghazi <ghazi@caip.rutgers.edu> | 2006-11-11 04:05:14 +0000 |
|---|---|---|
| committer | Kaveh Ghazi <ghazi@gcc.gnu.org> | 2006-11-11 04:05:14 +0000 |
| commit | b81e7144aa0c032c6246e0962467b4284cacd234 (patch) | |
| tree | d6296e3b6e9ca4e372d936e1dd953fec297ffde3 /gcc/builtins.c | |
| parent | 345768ef3f0ad0f2b09cbd79ec4daf6ba48f51b7 (diff) | |
| download | gcc-b81e7144aa0c032c6246e0962467b4284cacd234.zip gcc-b81e7144aa0c032c6246e0962467b4284cacd234.tar.gz gcc-b81e7144aa0c032c6246e0962467b4284cacd234.tar.bz2 | |
builtins.c (fold_builtin_cos): Use fold_strip_sign_ops().
* builtins.c (fold_builtin_cos): Use fold_strip_sign_ops().
(fold_builtin_hypot): Likewise.
* fold-const.c (fold_strip_sign_ops): Handle "odd" builtins.
testsuite:
* gcc.dg/builtins-20.c: Add more cases for stripping sign ops.
From-SVN: r118683
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 9d27243..f1fa123 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -7242,7 +7242,7 @@ static tree fold_builtin_cos (tree arglist, tree type, tree fndecl) { tree arg = TREE_VALUE (arglist); - tree res; + tree res, narg; if (!validate_arglist (arglist, REAL_TYPE, VOID_TYPE)) return NULL_TREE; @@ -7252,12 +7252,9 @@ fold_builtin_cos (tree arglist, tree type, tree fndecl) return res; /* Optimize cos(-x) into cos (x). */ - if (TREE_CODE (arg) == NEGATE_EXPR) - { - tree args = build_tree_list (NULL_TREE, - TREE_OPERAND (arg, 0)); - return build_function_call_expr (fndecl, args); - } + if ((narg = fold_strip_sign_ops (arg))) + return build_function_call_expr (fndecl, + build_tree_list (NULL_TREE, narg)); return NULL_TREE; } @@ -7765,7 +7762,7 @@ fold_builtin_hypot (tree fndecl, tree arglist, tree type) { tree arg0 = TREE_VALUE (arglist); tree arg1 = TREE_VALUE (TREE_CHAIN (arglist)); - tree res; + tree res, narg0, narg1; if (!validate_arglist (arglist, REAL_TYPE, REAL_TYPE, VOID_TYPE)) return NULL_TREE; @@ -7776,17 +7773,13 @@ fold_builtin_hypot (tree fndecl, tree arglist, tree type) /* If either argument to hypot has a negate or abs, strip that off. E.g. hypot(-x,fabs(y)) -> hypot(x,y). */ - if (TREE_CODE (arg0) == NEGATE_EXPR || TREE_CODE (arg1) == NEGATE_EXPR - || TREE_CODE (arg0) == ABS_EXPR || TREE_CODE (arg1) == ABS_EXPR) - { - tree narg0 = (TREE_CODE (arg0) == NEGATE_EXPR - || TREE_CODE (arg0) == ABS_EXPR) - ? TREE_OPERAND (arg0, 0) : arg0; - tree narg1 = (TREE_CODE (arg1) == NEGATE_EXPR - || TREE_CODE (arg1) == ABS_EXPR) - ? TREE_OPERAND (arg1, 0) : arg1; - tree narglist = tree_cons (NULL_TREE, narg0, - build_tree_list (NULL_TREE, narg1)); + narg0 = fold_strip_sign_ops (arg0); + narg1 = fold_strip_sign_ops (arg1); + if (narg0 || narg1) + { + tree narglist = tree_cons (NULL_TREE, narg0 ? narg0 : arg0, + build_tree_list (NULL_TREE, + narg1 ? narg1 : arg1)); return build_function_call_expr (fndecl, narglist); } |