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| author | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-01-21 14:57:33 +0000 |
|---|---|---|
| committer | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-01-21 14:57:33 +0000 |
| commit | 1bc4cf65767dd54b45e55f00fe67b608a40e530e (patch) | |
| tree | 755d1d58491daff3fda926aecf62711e4f7c668b /gcc/cfgexpand.c | |
| parent | da82f093f0cb283081874fb700bdf06dd9f59628 (diff) | |
| download | gcc-1bc4cf65767dd54b45e55f00fe67b608a40e530e.tar.gz | |
PR debug/47106
* cfgexpand.c (account_used_vars_for_block): Only account vars
that are annotated as used.
(estimated_stack_frame_size): Don't set TREE_USED.
* tree-dfa.c (create_var_ann): Mark variable as used.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@169093 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cfgexpand.c')
| -rw-r--r-- | gcc/cfgexpand.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c index aeb23610565..bb60c337084 100644 --- a/gcc/cfgexpand.c +++ b/gcc/cfgexpand.c @@ -1325,7 +1325,7 @@ account_used_vars_for_block (tree block, bool toplevel) /* Expand all variables at this level. */ for (t = BLOCK_VARS (block); t ; t = DECL_CHAIN (t)) - if (TREE_USED (t)) + if (var_ann (t) && var_ann (t)->used) size += expand_one_var (t, toplevel, false); /* Expand all variables at containing levels. */ @@ -1389,9 +1389,10 @@ estimated_stack_frame_size (tree decl) FOR_EACH_LOCAL_DECL (cfun, ix, var) { + /* TREE_USED marks local variables that do not appear in lexical + blocks. We don't want to expand those that do twice. */ if (TREE_USED (var)) size += expand_one_var (var, true, false); - TREE_USED (var) = 1; } size += account_used_vars_for_block (outer_block, true); |