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From: "hjl dot tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/44921] [4.6 Regression] Failed to bootstrap
Date: Mon, 12 Jul 2010 18:46:00 -0000 [thread overview]
Message-ID: <20100712184633.641.qmail@sourceware.org> (raw)
In-Reply-To: <bug-44921-682@http.gcc.gnu.org/bugzilla/>
------- Comment #1 from hjl dot tools at gmail dot com 2010-07-12 18:46 -------
This patch:
Index: postreload.c
===================================================================
--- postreload.c (revision 162085)
+++ postreload.c (working copy)
@@ -1281,7 +1281,7 @@ move2add_use_add3_insn (rtx reg, rtx sym
rtx src = SET_SRC (pat);
int regno = REGNO (reg);
int min_cost = INT_MAX;
- int min_regno;
+ int min_regno = -1;
bool speed = optimize_bb_for_speed_p (BLOCK_FOR_INSN (insn));
int i;
@@ -1317,7 +1317,7 @@ move2add_use_add3_insn (rtx reg, rtx sym
}
}
- if (min_cost < rtx_cost (src, SET, speed))
+ if (min_regno >= 0 && min_cost < rtx_cost (src, SET, speed))
{
rtx tem;
works for me.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44921
next prev parent reply other threads:[~2010-07-12 18:46 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-12 18:38 [Bug bootstrap/44921] New: " hjl dot tools at gmail dot com
2010-07-12 18:46 ` [Bug bootstrap/44921] " hjl dot tools at gmail dot com
2010-07-12 18:46 ` hjl dot tools at gmail dot com [this message]
2010-07-12 22:44 ` amylaar at gcc dot gnu dot org
2010-07-12 22:54 ` amylaar at gcc dot gnu dot org
2010-07-12 23:33 ` hjl dot tools at gmail dot com
2010-07-12 23:34 ` hjl dot tools at gmail dot com
2010-07-12 23:45 ` amylaar at gcc dot gnu dot org
2010-07-13 0:52 ` hjl at gcc dot gnu dot org
2010-07-13 9:51 ` jiez at gcc dot gnu dot org
2010-07-13 9:52 ` jiez at gcc dot gnu dot org
2010-07-13 16:20 ` jiez at gcc dot gnu dot org
2010-07-13 16:40 ` jiez at gcc dot gnu dot org
2010-07-23 12:37 ` rguenth at gcc dot gnu dot org
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