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authorrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>2009-02-17 16:01:53 +0000
committerrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>2009-02-17 16:01:53 +0000
commit1ab8a9123e72d9bcb71343aab81253de201a1d81 (patch)
treea5861330ce269fc0e2f0fb5f3a8d6f41fcd0c03e /gcc/tree-ssa-structalias.c
parentaa03bd5e2d1606fd23984cd5b2b0cdc9820c6f08 (diff)
downloadgcc-1ab8a9123e72d9bcb71343aab81253de201a1d81.tar.gz
2009-02-17 Richard Guenther <rguenther@suse.de>
PR tree-optimization/39202 * tree-ssa-structalias.c (do_structure_copy): Before collapsing a var make sure to follow existing collapses. * gcc.c-torture/compile/pr39202.c: New testcase. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@144235 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-structalias.c')
-rw-r--r--gcc/tree-ssa-structalias.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c
index f9962b33a98..8f887969427 100644
--- a/gcc/tree-ssa-structalias.c
+++ b/gcc/tree-ssa-structalias.c
@@ -3405,8 +3405,8 @@ do_structure_copy (tree lhsop, tree rhsop)
{
if (!do_simple_structure_copy (lhs, rhs, MIN (lhssize, rhssize)))
{
- lhs.var = collapse_rest_of_var (lhs.var);
- rhs.var = collapse_rest_of_var (rhs.var);
+ lhs.var = collapse_rest_of_var (get_varinfo_fc (lhs.var)->id);
+ rhs.var = collapse_rest_of_var (get_varinfo_fc (rhs.var)->id);
lhs.offset = 0;
rhs.offset = 0;
lhs.type = SCALAR;