diff options
| author | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-07-02 07:41:07 +0000 |
|---|---|---|
| committer | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-07-02 07:41:07 +0000 |
| commit | 74878f86c8e599ce62202c57d0ea3ad48bbf8abd (patch) | |
| tree | 2f0ff7e67c577a96205f1a538d682dfa6c362eb3 /gcc/expr.c | |
| parent | bed136558e0956b7e52bb3e1e7cb1cd74f7b5bc5 (diff) | |
| download | gcc-74878f86c8e599ce62202c57d0ea3ad48bbf8abd.tar.gz | |
PR optimization/11210
* expr.c (handled_component_p) [NOP_EXPR]: Add ??? note
about the behaviour with regard to bitfields.
* fold-const (decode_field_reference): Record outermost type in
case the expression is a NOP. Strip all NOPs. Set the signedness
to that of the outermost type (if any) when the bitsize is equal
to the size of the type.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@68823 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/expr.c b/gcc/expr.c index a581b178802..8049020d3d3 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -5903,6 +5903,9 @@ handled_component_p (tree t) case VIEW_CONVERT_EXPR: return 1; + /* ??? Sure they are handled, but get_inner_reference may return + a different PBITSIZE, depending upon whether the expression is + wrapped up in a NOP_EXPR or not, e.g. for bitfields. */ case NOP_EXPR: case CONVERT_EXPR: return (TYPE_MODE (TREE_TYPE (t)) |