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| author | Eric Botcazou <ebotcazou@adacore.com> | 2015-10-21 21:10:49 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2015-10-21 21:10:49 +0000 |
| commit | c26065cc38586f9d014b0f04a54dfa0e52c23189 (patch) | |
| tree | 084c76d531cbfb2e9595783f1db615465fd22c4f /gcc/fold-const.c | |
| parent | e90bedf52c86a7b4e2e0a1f8a5a1450725cb95b6 (diff) | |
| download | gcc-c26065cc38586f9d014b0f04a54dfa0e52c23189.zip gcc-c26065cc38586f9d014b0f04a54dfa0e52c23189.tar.gz gcc-c26065cc38586f9d014b0f04a54dfa0e52c23189.tar.bz2 | |
tree.def (CEIL_DIV_EXPR, [...]): Tweak comments.
* tree.def (CEIL_DIV_EXPR, FLOOR_DIV_EXPR, ROUND_DIV_EXPR): Tweak
comments.
(TRUNC_MOD_EXPR, CEIL_MOD_EXPR, FLOOR_MOD_EXPR, ROUND_MOD_EXPR):
Add comments on sign of the result.
* fold-const.c (tree_binary_nonnegative_warnv_p) <FLOOR_MOD_EXPR>:
Recurse on operand #1 instead of operand #0.
<CEIL_MOD_EXPR>: Do not recurse.
<ROUND_MOD_EXPR>: Likewise.
From-SVN: r229146
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 042d43f..b7874a0 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -12908,11 +12908,13 @@ tree_binary_nonnegative_warnv_p (enum tree_code code, tree type, tree op0, return RECURSE (op0) && RECURSE (op1); case TRUNC_MOD_EXPR: - case CEIL_MOD_EXPR: - case FLOOR_MOD_EXPR: - case ROUND_MOD_EXPR: return RECURSE (op0); + case FLOOR_MOD_EXPR: + return RECURSE (op1); + + case CEIL_MOD_EXPR: + case ROUND_MOD_EXPR: default: return tree_simple_nonnegative_warnv_p (code, type); } |