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| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-08-27 00:55:38 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-08-27 00:55:38 +0000 |
| commit | 5e1a75c5bb2b9881d906142ed8e1a320ec1dbfc5 (patch) | |
| tree | 6c427b8f84f25b3a3314f74ca5ce1571788772a7 /gcc/tree.c | |
| parent | af28855bc1af90aa53b5de0a91ef843dce967545 (diff) | |
| download | gcc-5e1a75c5bb2b9881d906142ed8e1a320ec1dbfc5.tar.gz | |
Update comment for staticp.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@86652 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree.c')
| -rw-r--r-- | gcc/tree.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/gcc/tree.c b/gcc/tree.c index 27efff1d49f..1c5060e5869 100644 --- a/gcc/tree.c +++ b/gcc/tree.c @@ -1363,8 +1363,9 @@ array_type_nelts (tree type) : fold (build2 (MINUS_EXPR, TREE_TYPE (max), max, min))); } -/* Return true if arg is static -- a reference to an object in - static storage. This is not the same as the C meaning of `static'. */ +/* If arg is static -- a reference to an object in static storage -- then + return the object. This is not the same as the C meaning of `static'. + If arg isn't static, return NULL. */ tree staticp (tree arg) @@ -2270,7 +2271,11 @@ do { tree _node = (NODE); \ address of a volatile variable is not volatile.) If it's a constant, the address is both invariant and constant. Otherwise it's neither. */ if (TREE_CODE (node) == INDIRECT_REF) - UPDATE_TITCSE (node); + { + /* If this is &((T*)0)->field, then this is a form of addition. */ + if (TREE_CODE (TREE_OPERAND (node, 0)) != INTEGER_CST) + UPDATE_TITCSE (node); + } else if (DECL_P (node)) { if (staticp (node)) |