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authorrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>2010-04-23 15:46:23 +0000
committerrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>2010-04-23 15:46:23 +0000
commit8081b5e747a61d4cf3dd97bbbf7368498a3f99be (patch)
treedc172ad7cc4c1bbb96829042298fa2052a56568d /gcc
parent2870d987f2907d79ec4ceebdb8791d52ff609260 (diff)
downloadgcc-8081b5e747a61d4cf3dd97bbbf7368498a3f99be.tar.gz
2010-04-23 Richard Guenther <rguenther@suse.de>
PR tree-optimization/43572 * tree-tailcall.c (find_tail_calls): Allow PARM_DECL uses. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158671 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/tree-tailcall.c3
2 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 586f1e6b670..c7eecfb50f5 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
2010-04-23 Richard Guenther <rguenther@suse.de>
+ PR tree-optimization/43572
+ * tree-tailcall.c (find_tail_calls): Allow PARM_DECL uses.
+
+2010-04-23 Richard Guenther <rguenther@suse.de>
+
PR lto/43455
* tree-inline.c (tree_can_inline_p): Also check compatibility
of return types.
diff --git a/gcc/tree-tailcall.c b/gcc/tree-tailcall.c
index 4d2422aa623..a9f01919b4d 100644
--- a/gcc/tree-tailcall.c
+++ b/gcc/tree-tailcall.c
@@ -458,7 +458,8 @@ find_tail_calls (basic_block bb, struct tailcall **ret)
to local variables. */
FOR_EACH_REFERENCED_VAR (var, rvi)
{
- if (!is_global_var (var)
+ if (TREE_CODE (var) != PARM_DECL
+ && auto_var_in_fn_p (var, cfun->decl)
&& ref_maybe_used_by_stmt_p (call, var))
return;
}