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| author | Jan Hubicka <jh@suse.cz> | 2006-10-18 23:39:52 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2006-10-18 21:39:52 +0000 |
| commit | 1368453c6a59c0441fcf9fef79d1821a74a71565 (patch) | |
| tree | 975208f2a044fb57876ad485ab26298b6cff747d /gcc/cfgexpand.c | |
| parent | c4c7fca31fc7b4dfa02e9c25d3c8f032523c3b96 (diff) | |
| download | gcc-1368453c6a59c0441fcf9fef79d1821a74a71565.tar.gz | |
re PR middle-end/29299 (gcc "used" attribute has no effect on local-scope static variables)
PR middle-end/29299
* cfgexpand.c (expand_used_vars_for_block): Vars marked used by user
are used.
From-SVN: r117863
Diffstat (limited to 'gcc/cfgexpand.c')
| -rw-r--r-- | gcc/cfgexpand.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c index 4cc1047fadf..b688917cc72 100644 --- a/gcc/cfgexpand.c +++ b/gcc/cfgexpand.c @@ -764,7 +764,12 @@ expand_used_vars_for_block (tree block, bool toplevel) /* Expand all variables at this level. */ for (t = BLOCK_VARS (block); t ; t = TREE_CHAIN (t)) - if (TREE_USED (t)) + if (TREE_USED (t) + /* Force local static variables to be output when marked by + used attribute. For unit-at-a-time, cgraph code already takes + care of this. */ + || (!flag_unit_at_a_time && TREE_STATIC (t) + && DECL_PRESERVE_P (t))) expand_one_var (t, toplevel); this_sv_num = stack_vars_num; |