--- Comment #11 from jakub at gcc dot gnu dot org 2007-09-04 23:31 ---
Subject: Bug 32300
Author: jakub
Date: Tue Sep 4 23:31:11 2007
New Revision: 128108
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=128108
Log:
PR rtl-optimization/32300
* see.c
--- Comment #12 from jakub at gcc dot gnu dot org 2007-09-04 23:37 ---
Fixed.
--
jakub at gcc dot gnu dot org changed:
What|Removed |Added
Status|ASSIGNED
--- Comment #13 from zadeck at naturalbridge dot com 2007-09-05 01:24
---
Subject: Re: [4.3 Regression] ICE with -O2 -fsee
jakub at gcc dot gnu dot org wrote:
--- Comment #12 from jakub at gcc dot gnu dot org 2007-09-04 23:37
---
Fixed.
jakub
thanks for doing
--- Comment #9 from wouter dot vermaelen at scarlet dot be 2007-08-17
12:44 ---
Here is a simpler testcase:
int f(int i) { return 100LL / (1 + i); }
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32300
--- Comment #10 from zadeck at naturalbridge dot com 2007-08-17 12:48
---
Subject: Re: [4.3 Regression] ICE with -O2 -fsee
wouter dot vermaelen at scarlet dot be wrote:
--- Comment #9 from wouter dot vermaelen at scarlet dot be 2007-08-17
12:44 ---
Here is a simpler
--- Comment #8 from pinskia at gcc dot gnu dot org 2007-07-13 15:53 ---
*** Bug 32755 has been marked as a duplicate of this bug. ***
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
--
mmitchel at gcc dot gnu dot org changed:
What|Removed |Added
Priority|P3 |P1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32300
--- Comment #7 from namolaru at il dot ibm dot com 2007-06-25 11:17 ---
(In reply to comment #5)
This bug should be assigned to Mircea Namolaru [EMAIL PROTECTED]. I have
sent him mail asking that he get a proper bugzilla id.
==
The underlying problem
--- Comment #6 from dje at gcc dot gnu dot org 2007-06-13 20:00 ---
From IRC:
see.c:2732 makes a copy of an insn and then hacks on it with validate_change
(and it's close relatives). This copy has a basic_block, even though it is not
in the insn stream, as well as the same insn_uid as
--- Comment #1 from rguenth at gcc dot gnu dot org 2007-06-12 12:36 ---
Confirmed. A dataflow merge fallout probably:
Program received signal SIGSEGV, Segmentation fault.
0x007c449c in df_insn_refs_verify (collection_rec=0x7fff1ab011c0,
bb=0x2aec90911360,
--- Comment #2 from rguenth at gcc dot gnu dot org 2007-06-12 12:40 ---
FYI
(gdb) bt
#0 0x007c449c in df_insn_refs_verify (collection_rec=0x70a74130,
bb=0x2aaeba99e360, insn=0x2aaeba7dafa0, abort_if_fail=1 '\001')
at
--- Comment #3 from zadeck at naturalbridge dot com 2007-06-12 12:46
---
I am not surprised at this at all. Given that there are no regression tests
that use -fsee and this pass is never on by default.
I will look into this.
However, the big picture is that we need to make a
--- Comment #4 from rguenth at gcc dot gnu dot org 2007-06-12 13:37 ---
Yes, those should be at least excercised by the tortures. So, if enabling at
-O3
regtests ok I'd vote for enabling it there.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32300
--- Comment #5 from zadeck at naturalbridge dot com 2007-06-12 18:13
---
This bug should be assigned to Mircea Namolaru [EMAIL PROTECTED]. I have
sent him mail asking that he get a proper bugzilla id.
==
The underlying problem is that see.c:2732 uses
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