diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2011-01-21 13:51:18 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-01-21 13:51:18 +0100 |
| commit | d8debb1d8a53c120ed56ef3753afa3e9acaccded (patch) | |
| tree | 23ba2c9082a6684671b4d436589f91f20228260a /gcc/tree-ssa-live.c | |
| parent | f316861a049053a8d54691fa1ea5637d74773db5 (diff) | |
| download | gcc-d8debb1d8a53c120ed56ef3753afa3e9acaccded.zip gcc-d8debb1d8a53c120ed56ef3753afa3e9acaccded.tar.gz gcc-d8debb1d8a53c120ed56ef3753afa3e9acaccded.tar.bz2 | |
tree-ssa-live.c (remove_unused_scope_block_p): Don't remove DECL_IGNORED_P non-reg vars if they are used.
* tree-ssa-live.c (remove_unused_scope_block_p): Don't remove
DECL_IGNORED_P non-reg vars if they are used.
From-SVN: r169083
Diffstat (limited to 'gcc/tree-ssa-live.c')
| -rw-r--r-- | gcc/tree-ssa-live.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/tree-ssa-live.c b/gcc/tree-ssa-live.c index 0fa906b..4880a1a 100644 --- a/gcc/tree-ssa-live.c +++ b/gcc/tree-ssa-live.c @@ -453,8 +453,11 @@ remove_unused_scope_block_p (tree scope) else if (TREE_CODE (*t) == VAR_DECL && DECL_HAS_VALUE_EXPR_P (*t)) unused = false; - /* Remove everything we don't generate debug info for. */ - else if (DECL_IGNORED_P (*t)) + /* Remove everything we don't generate debug info for. + Don't remove larger vars though, because BLOCK_VARS are + used also during expansion to determine which variables + might share stack space. */ + else if (DECL_IGNORED_P (*t) && is_gimple_reg (*t)) { *t = DECL_CHAIN (*t); next = t; |