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From: "danglin at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/37535] gcc/libgcc2.c:404: internal compiler error: Floating point exception
Date: Tue, 16 Sep 2008 02:05:00 -0000 [thread overview]
Message-ID: <20080916020428.5685.qmail@sourceware.org> (raw)
In-Reply-To: <bug-37535-276@http.gcc.gnu.org/bugzilla/>
------- Comment #2 from danglin at gcc dot gnu dot org 2008-09-16 02:04 -------
0x005b7644 <update_copy_costs+308>: stw r1,-10(sp)
0x005b7648 <update_copy_costs+312>: fldw -10(sp),fr22R
0x005b764c <update_copy_costs+316>: cmpiclr,= 0,r10,r0
0x005b7650 <update_copy_costs+320>: copy r21,r20
0x005b7654 <update_copy_costs+324>: stw r20,-10(sp)
0x005b7658 <update_copy_costs+328>: fldw -10(sp),fr22
0x005b765c <update_copy_costs+332>: xmpyu fr22,fr22R,fr22
0x005b7660 <update_copy_costs+336>: fstd fr22,-10(sp)
0x005b7664 <update_copy_costs+340>: ldw -10(sp),r25
0x005b7668 <update_copy_costs+344>: ldw -c(sp),r26
0x005b766c <update_copy_costs+348>: b,l 0x5a0cd4,r31
0x005b7670 <update_copy_costs+352>: nop
The arguments for the multiplication.
(gdb) p/x $r1
$17 = 0x1
(gdb) p/x $r20
$18 = 0xfffffffe
The arguments of the division.
(gdb) p/x $r25
$19 = 0x0
(gdb) p/x $r26
$20 = 0xfffffffe
(gdb)
Loading r25 from -10(sp) is wierd.
--
danglin at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|ice-on-valid-code, ra |
Summary|[4.4 Regression] |gcc/libgcc2.c:404: internal
|gcc/libgcc2.c:404: internal |compiler error: Floating
|compiler error: Floating |point exception
|point exception |
Target Milestone|4.4.0 |---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37535
next prev parent reply other threads:[~2008-09-16 2:05 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-16 0:58 [Bug middle-end/37535] New: " danglin at gcc dot gnu dot org
2008-09-16 1:01 ` [Bug middle-end/37535] [4.4 Regression] " pinskia at gcc dot gnu dot org
2008-09-16 2:05 ` danglin at gcc dot gnu dot org [this message]
2008-09-16 3:37 ` [Bug middle-end/37535] " danglin at gcc dot gnu dot org
2008-09-16 3:42 ` dave at hiauly1 dot hia dot nrc dot ca
2008-09-16 13:04 ` [Bug middle-end/37535] [4.4 Regression] " rguenth at gcc dot gnu dot org
2008-09-16 16:48 ` vmakarov at redhat dot com
2008-09-17 1:11 ` vmakarov at redhat dot com
2008-09-18 12:04 ` krebbel at gcc dot gnu dot org
2008-09-19 23:26 ` vmakarov at gcc dot gnu dot org
2008-09-20 17:06 ` dave at hiauly1 dot hia dot nrc dot ca
2008-09-20 18:45 ` hjl dot tools at gmail dot com
2008-09-21 20:01 ` hjl at gcc dot gnu dot org
2008-09-22 22:47 ` hjl at gcc dot gnu dot org
2008-09-26 0:46 ` vmakarov at gcc dot gnu dot org
2008-09-30 0:39 ` hjl at gcc dot gnu dot org
2008-10-06 15:37 ` vmakarov at gcc dot gnu dot org
2008-10-11 15:12 ` danglin at gcc dot gnu dot org
2008-10-14 22:27 ` hjl at gcc dot gnu dot org
2008-10-16 0:54 ` vmakarov at gcc dot gnu dot org
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