diff options
Diffstat (limited to 'gcc/c-decl.c')
| -rw-r--r-- | gcc/c-decl.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index e189d36..b718387 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -567,12 +567,22 @@ objc_mark_locals_volatile (void *enclosing_blk) { for (b = scope->bindings; b; b = b->prev) { - if (TREE_CODE (b->decl) == VAR_DECL - || TREE_CODE (b->decl) == PARM_DECL) + tree decl = b->decl; + + /* Do not mess with variables that are 'static' or (already) + 'volatile'. */ + if (!TREE_THIS_VOLATILE (decl) && !TREE_STATIC (decl) + && (TREE_CODE (decl) == VAR_DECL + || TREE_CODE (decl) == PARM_DECL)) { - C_DECL_REGISTER (b->decl) = 0; - DECL_REGISTER (b->decl) = 0; - TREE_THIS_VOLATILE (b->decl) = 1; + TREE_TYPE (decl) + = build_qualified_type (TREE_TYPE (decl), + (TYPE_QUALS (TREE_TYPE (decl)) + | TYPE_QUAL_VOLATILE)); + TREE_THIS_VOLATILE (decl) = 1; + TREE_SIDE_EFFECTS (decl) = 1; + DECL_REGISTER (decl) = 0; + C_DECL_REGISTER (decl) = 0; } } |