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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/63804] New: ice in find_oldest_value_reg with -g -O2
Date: Mon, 10 Nov 2014 10:13:00 -0000 [thread overview]
Message-ID: <bug-63804-4@http.gcc.gnu.org/bugzilla/> (raw)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63804
Bug ID: 63804
Summary: ice in find_oldest_value_reg with -g -O2
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Created attachment 33930
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33930&action=edit
gzipped C source code
I just tried to compile the attached code
on gcc trunk dated 20141109 on an AMD x86_64 box.
The compiler said
$ ../results/bin/gcc -c -g -O2 bug169.c
brw_eu_emit.c: In function ‘brw_oword_block_write_scratch’:
brw_eu_emit.c:2071:1: internal compiler error: Segmentation fault
0xa82d3c crash_signal(int)
../../src/trunk/gcc/toplev.c:358
0x9c07fe find_oldest_value_reg(reg_class, rtx_def*, value_data*)
../../src/trunk/gcc/regcprop.c:459
0x9c0ab1 replace_oldest_value_reg(rtx_def**, reg_class, rtx_insn*, value_data*)
../../src/trunk/gcc/regcprop.c:492
0x9bfbcc replace_oldest_value_addr(rtx_def**, reg_class, machine_mode, unsigned
char, rtx_insn*, value_data*)
../../src/trunk/gcc/regcprop.c:652
0x9be2a8 copyprop_hardreg_forward_1(basic_block_def*, value_data*)
../../src/trunk/gcc/regcprop.c:761
0x9be19a copyprop_hardreg_forward_bb_without_debug_insn(basic_block_def*)
../../src/trunk/gcc/regcprop.c:1145
0xa47dbb prepare_shrink_wrap(basic_block_def*)
../../src/trunk/gcc/shrink-wrap.c:439
0xa48f60 try_shrink_wrapping(edge_def**, edge_def*, bitmap_head*, rtx_insn*)
../../src/trunk/gcc/shrink-wrap.c:573
0x7f6709 thread_prologue_and_epilogue_insns()
../../src/trunk/gcc/function.c:5937
0x7f6709 rest_of_handle_thread_prologue_and_epilogue()
../../src/trunk/gcc/function.c:6476
0x7f6709 (anonymous
namespace)::pass_thread_prologue_and_epilogue::execute(function*)
../../src/trunk/gcc/function.c:6514
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
Flags -g -O2 required.
>From gcc-bugs-return-466212-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Nov 10 10:20:02 2014
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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/63804] [5 Regression] ice in find_oldest_value_reg with -g -O2
Date: Mon, 10 Nov 2014 10:20:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: rtl-optimization
X-Bugzilla-Version: 5.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: mpolacek at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 5.0
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: bug_status cf_known_to_work cf_reconfirmed_on component cc everconfirmed short_desc target_milestone cf_known_to_fail
Message-ID: <bug-63804-4-Jw0Mduwxfv@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-63804-4@http.gcc.gnu.org/bugzilla/>
References: <bug-63804-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2014-11/txt/msg00684.txt.bz2
Content-length: 990
https://gcc.gnu.org/bugzilla/show_bug.cgi?idc804
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Known to work| |4.9.2
Last reconfirmed| |2014-11-10
Component|c |rtl-optimization
CC| |mpolacek at gcc dot gnu.org
Ever confirmed|0 |1
Summary|ice in |[5 Regression] ice in
|find_oldest_value_reg with |find_oldest_value_reg with
|-g -O2 |-g -O2
Target Milestone|--- |5.0
Known to fail| |5.0
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.
next reply other threads:[~2014-11-10 10:13 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-10 10:13 dcb314 at hotmail dot com [this message]
2014-11-10 11:22 ` [Bug rtl-optimization/63804] [5 Regression] " mpolacek at gcc dot gnu.org
2014-11-10 11:49 ` trippels at gcc dot gnu.org
2014-11-10 13:08 ` trippels at gcc dot gnu.org
2014-11-10 13:11 ` trippels at gcc dot gnu.org
2014-11-20 11:54 ` jakub at gcc dot gnu.org
2014-11-20 12:51 ` rguenth at gcc dot gnu.org
2014-12-15 18:41 ` jakub at gcc dot gnu.org
2014-12-15 19:07 ` jakub at gcc dot gnu.org
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