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| author | Jim Wilson <wilson@gcc.gnu.org> | 1993-04-12 12:45:58 -0700 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1993-04-12 12:45:58 -0700 |
| commit | b76478952ba40bfb81febeeb3f76983b53cdff5e (patch) | |
| tree | 104e76477bdd453015d1f3c59b1cf03d5e08cdaa /gcc | |
| parent | 29df70e6ff84935cebf6aa0e568d1fbf8234fb31 (diff) | |
| download | gcc-b76478952ba40bfb81febeeb3f76983b53cdff5e.zip gcc-b76478952ba40bfb81febeeb3f76983b53cdff5e.tar.gz gcc-b76478952ba40bfb81febeeb3f76983b53cdff5e.tar.bz2 | |
(fold...
(fold, COMPOUND_EXPR case): When pedantic, don't
simplify a COMPOUND_EXPR, so that it won't be mistaken for an
lvalue or an integer constant expression.
From-SVN: r4103
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/fold-const.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index bc23a4e..5e79960 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -4413,7 +4413,9 @@ fold (expr) return t; case COMPOUND_EXPR: - if (TREE_SIDE_EFFECTS (arg0)) + /* When pedantic, a compound expression can be neither an lvalue + nor an integer constant expression. */ + if (TREE_SIDE_EFFECTS (arg0) || pedantic) return t; /* Don't let (0, 0) be null pointer constant. */ if (integer_zerop (arg1)) |