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| author | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-11-24 11:49:46 +0000 |
|---|---|---|
| committer | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-11-24 11:49:46 +0000 |
| commit | 4e91a871c201bcffad88daabbd217ee99142a17c (patch) | |
| tree | 4a5a8c5bbd55425bdea0737edf13bbc8e8817f59 /gcc/fold-const.c | |
| parent | e53826a7fe250ee3a75c8c4919f8cd04fc7779c5 (diff) | |
| download | gcc-4e91a871c201bcffad88daabbd217ee99142a17c.tar.gz | |
Overhaul sequence point warnings (again)
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@37706 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index f5b26993f4c..9284a1943a9 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -5962,7 +5962,9 @@ fold (expr) /* If either arg is constant true, drop it. */ if (TREE_CODE (arg0) == INTEGER_CST && ! integer_zerop (arg0)) return non_lvalue (convert (type, arg1)); - if (TREE_CODE (arg1) == INTEGER_CST && ! integer_zerop (arg1)) + if (TREE_CODE (arg1) == INTEGER_CST && ! integer_zerop (arg1) + /* Preserve sequence points. */ + && (code != TRUTH_ANDIF_EXPR || ! TREE_SIDE_EFFECTS (arg0))) return non_lvalue (convert (type, arg0)); /* If second arg is constant zero, result is zero, but first arg must be evaluated. */ @@ -6048,7 +6050,9 @@ fold (expr) /* If either arg is constant zero, drop it. */ if (TREE_CODE (arg0) == INTEGER_CST && integer_zerop (arg0)) return non_lvalue (convert (type, arg1)); - if (TREE_CODE (arg1) == INTEGER_CST && integer_zerop (arg1)) + if (TREE_CODE (arg1) == INTEGER_CST && integer_zerop (arg1) + /* Preserve sequence points. */ + && (code != TRUTH_ORIF_EXPR || ! TREE_SIDE_EFFECTS (arg0))) return non_lvalue (convert (type, arg0)); /* If second arg is constant true, result is true, but we must evaluate first arg. */ |