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| author | Jakub Jelinek <jakub@redhat.com> | 2015-03-10 07:38:57 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2015-03-10 07:38:57 +0100 |
| commit | 7ccb1a11e5a8debe5689d6d149a94175c7fe9ae2 (patch) | |
| tree | af3e28b78c0d8a3c890506ce8948602e57219233 /gcc/c | |
| parent | 26d83bccd1ed42a08b5940ba73742537b81efa2b (diff) | |
| download | gcc-7ccb1a11e5a8debe5689d6d149a94175c7fe9ae2.zip gcc-7ccb1a11e5a8debe5689d6d149a94175c7fe9ae2.tar.gz gcc-7ccb1a11e5a8debe5689d6d149a94175c7fe9ae2.tar.bz2 | |
re PR c/65120 (Wlogical-not-parentheses should not warn about double exclamation !!)
PR c/65120
* c-common.c (warn_logical_not_parentheses): Don't warn for
!x == 0 or !x != 0.
* c-typeck.c (parser_build_binary_op): Check for tcc_comparison
before preparing arguments to warn_logical_not_parentheses.
* parser.c (cp_parser_binary_expression): Check for tcc_comparison
before preparing arguments to warn_logical_not_parentheses.
Use maybe_constant_value on rhs.
* c-c++-common/pr49706.c (fn2): Don't expect warning if enumerator
on rhs is 0.
(fn4): New test.
* c-c++-common/pr65120.c: New test.
From-SVN: r221299
Diffstat (limited to 'gcc/c')
| -rw-r--r-- | gcc/c/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/c/c-typeck.c | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog index 7b81080..c15b86f 100644 --- a/gcc/c/ChangeLog +++ b/gcc/c/ChangeLog @@ -1,3 +1,9 @@ +2015-03-10 Jakub Jelinek <jakub@redhat.com> + + PR c/65120 + * c-typeck.c (parser_build_binary_op): Check for tcc_comparison + before preparing arguments to warn_logical_not_parentheses. + 2015-03-09 Jakub Jelinek <jakub@redhat.com> PR c/65120 diff --git a/gcc/c/c-typeck.c b/gcc/c/c-typeck.c index 98bff32..ebe4c73 100644 --- a/gcc/c/c-typeck.c +++ b/gcc/c/c-typeck.c @@ -3459,6 +3459,7 @@ parser_build_binary_op (location_t location, enum tree_code code, code1, arg1.value, code2, arg2.value); if (warn_logical_not_paren + && TREE_CODE_CLASS (code) == tcc_comparison && code1 == TRUTH_NOT_EXPR && code2 != TRUTH_NOT_EXPR /* Avoid warning for !!x == y. */ |