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| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-05-23 12:25:41 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-05-23 12:25:41 +0000 |
| commit | ad75582e24a80fad6b6caec714f8414b450137bf (patch) | |
| tree | ba5ec63e854787f6350620ade1d6adb1b183582e /gcc/tree-dfa.c | |
| parent | f963f90b5b8c638dcbac2cd278671d4e1e1615dc (diff) | |
| download | gcc-ad75582e24a80fad6b6caec714f8414b450137bf.tar.gz | |
2012-05-23 Richard Guenther <rguenther@suse.de>
* tree-dfa.c (add_referenced_var_1): Do not add global vars.
* tree-ssa-live.c (mark_all_vars_used_1): Handle global vars
via the global_unused_vars bitmap.
(remove_unused_locals): Handle global vars in local-decls via
a global_unused_vars bitmap instead of the used flag in the
var annotation. Simplify global variable handling and removal.
* gcc.dg/torture/pr39074-2.c: Adjust.
* gcc.dg/torture/pr39074.c: Likewise.
* gcc.dg/torture/pta-structcopy-1.c: Likewise.
* gcc.dg/tree-ssa/alias-19.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@187800 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-dfa.c')
| -rw-r--r-- | gcc/tree-dfa.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/tree-dfa.c b/gcc/tree-dfa.c index 31cafa09a73..e9db01d8b82 100644 --- a/gcc/tree-dfa.c +++ b/gcc/tree-dfa.c @@ -581,6 +581,11 @@ add_referenced_var_1 (tree var, struct function *fn) || TREE_CODE (var) == PARM_DECL || TREE_CODE (var) == RESULT_DECL); + if (!(TREE_CODE (var) == VAR_DECL + && VAR_DECL_IS_VIRTUAL_OPERAND (var)) + && is_global_var (var)) + return false; + if (!*DECL_VAR_ANN_PTR (var)) create_var_ann (var); |