diff options
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 aeb2361..bb60c33 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); |