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[patch committed] Fix bootstrap failure on sh4-*-linux-gnu
- From: Kaz Kojima <kkojima at rr dot iij4u dot or dot jp>
- To: gcc-patches at gcc dot gnu dot org
- Date: Fri, 21 Mar 2008 07:57:18 +0900 (JST)
- Subject: [patch committed] Fix bootstrap failure on sh4-*-linux-gnu
Hi,
Bootstrap on sh4-unknown-linux-gnu fails during stage2
compilation of cp/class.c with
internal compiler error: in remove_insn, at emit-rtl.c:3601
It seems that sh.c:split_branches calls redirect_jump with
delete_unused argument set and redirect_jump hits the other
jump insn on which split_branches process is going, via
delete_related_insns. The patch below is to workaround this.
With it, the bootstrap on sh4-unknown-linux-gnu is successful
again. Applied on trunk.
Regards,
kaz
--
2008-03-20 Kaz Kojima <kkojima@gcc.gnu.org>
* config/sh/sh.c (split_branches): Pass zero to redirect_jump
as 'delete_unused' argument.
--- ORIG/trunk/gcc/config/sh/sh.c 2008-03-01 09:22:33.000000000 +0900
+++ INTEST/trunk/gcc/config/sh/sh.c 2008-03-20 12:31:38.000000000 +0900
@@ -1,6 +1,6 @@
/* Output routines for GCC for Renesas / SuperH SH.
Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
- 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+ 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
Contributed by Steve Chamberlain (sac@cygnus.com).
Improved by Jim Wilson (wilson@cygnus.com).
@@ -5283,7 +5283,7 @@ split_branches (rtx first)
bp->insert_place = insn;
bp->address = addr;
}
- ok = redirect_jump (insn, label, 1);
+ ok = redirect_jump (insn, label, 0);
gcc_assert (ok);
}
else