diff options
| author | Kaveh R. Ghazi <ghazi@caip.rutgers.edu> | 2007-02-06 02:50:39 +0000 |
|---|---|---|
| committer | Kaveh Ghazi <ghazi@gcc.gnu.org> | 2007-02-06 02:50:39 +0000 |
| commit | 8fbbe90b2614078f799f65c9e3608f1eec8a48ab (patch) | |
| tree | cee770a0428b5a0aa4b52b29a79ff52ec15c355c /gcc/fold-const.c | |
| parent | 792eaee2cb07b64e8f255209e93cf8d95bc0f705 (diff) | |
| download | gcc-8fbbe90b2614078f799f65c9e3608f1eec8a48ab.zip gcc-8fbbe90b2614078f799f65c9e3608f1eec8a48ab.tar.gz gcc-8fbbe90b2614078f799f65c9e3608f1eec8a48ab.tar.bz2 | |
fold-const.c (negate_expr_p): Handle CONJ_EXPR.
* fold-const.c (negate_expr_p): Handle CONJ_EXPR.
(fold_negate_expr): Likewise.
testsuite:
* gcc.dg/builtins-20.c: Add more cases.
From-SVN: r121639
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index c147efa..0b37a0f 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -1015,6 +1015,9 @@ negate_expr_p (tree t) return negate_expr_p (TREE_OPERAND (t, 0)) && negate_expr_p (TREE_OPERAND (t, 1)); + case CONJ_EXPR: + return negate_expr_p (TREE_OPERAND (t, 0)); + case PLUS_EXPR: if (HONOR_SIGN_DEPENDENT_ROUNDING (TYPE_MODE (type)) || HONOR_SIGNED_ZEROS (TYPE_MODE (type))) @@ -1145,6 +1148,12 @@ fold_negate_expr (tree t) fold_negate_expr (TREE_OPERAND (t, 1))); break; + case CONJ_EXPR: + if (negate_expr_p (t)) + return fold_build1 (CONJ_EXPR, type, + fold_negate_expr (TREE_OPERAND (t, 0))); + break; + case NEGATE_EXPR: return TREE_OPERAND (t, 0); |