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authorJakub Jelinek <jakub@redhat.com>2012-02-03 12:55:29 +0100
committerJakub Jelinek <jakub@gcc.gnu.org>2012-02-03 12:55:29 +0100
commit32410d02e0b1e561e61fbfc7de76a24d805518e3 (patch)
tree0a70c4a8c3ca9a7bc72b852791b251af8f8bafc2 /gcc/loop-unswitch.c
parent5b5b0fa908dc2042ef1b837d31b44560ee7420a8 (diff)
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re PR rtl-optimization/52092 (ICE: internal consistency failure)
PR rtl-optimization/52092 * loop-unswitch.c (unswitch_single_loop): Call copy_rtx_if_shared on get_iv_value result. * gcc.c-torture/compile/pr52092.c: New test. Co-Authored-By: Zdenek Dvorak <ook@ucw.cz> From-SVN: r183869
Diffstat (limited to 'gcc/loop-unswitch.c')
-rw-r--r--gcc/loop-unswitch.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/loop-unswitch.c b/gcc/loop-unswitch.c
index 77524d8..78da115 100644
--- a/gcc/loop-unswitch.c
+++ b/gcc/loop-unswitch.c
@@ -1,5 +1,5 @@
/* Loop unswitching for GNU compiler.
- Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+ Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2012
Free Software Foundation, Inc.
This file is part of GCC.
@@ -367,7 +367,7 @@ unswitch_single_loop (struct loop *loop, rtx cond_checked, int num)
fprintf (dump_file, ";; Unswitching loop\n");
/* Unswitch the loop on this condition. */
- nloop = unswitch_loop (loop, bbs[i], cond, cinsn);
+ nloop = unswitch_loop (loop, bbs[i], copy_rtx_if_shared (cond), cinsn);
gcc_assert (nloop);
/* Invoke itself on modified loops. */