https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63255
Bug ID: 63255
Summary: [5.0 regression] FAIL: gcc.dg/lto/ipareference2
c_lto_ipareference2_0.o-c_lto_ipareference2_1.o
execute -O1 -flto -flto-partition=1to1
-fwhole-program
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: sch...@linux-m68k.org
CC: hubicka at gcc dot gnu.org
Target: powerpc64-*-*
$ gcc/xgcc -Bgcc/ -O1 -flto -flto-partition=1to1 -fwhole-program -c -m64 -o
c_lto_ipareference2_0.o ../gcc/gcc/testsuite/gcc.dg/lto/ipareference2_0.c
$ gcc/xgcc -Bgcc/ -O1 -flto -flto-partition=1to1 -fwhole-program -c -m64 -o
c_lto_ipareference2_1.o ../gcc/gcc/testsuite/gcc.dg/lto/ipareference2_1.c
$ gcc/xgcc -Bgcc/ c_lto_ipareference2_0.o c_lto_ipareference2_1.o -O1 -flto
-flto-partition=1to1 -fwhole-program -m64 -o gcc-dg-lto-ipareference2-01.exe
$ ./gcc-dg-lto-ipareference2-01.exe
Aborted
$ gdb ./gcc-dg-lto-ipareference2-01.exe
GNU gdb (GDB) SUSE (7.5.1-0.7.29)
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "ppc64-suse-linux".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from
/net/hawking/daten/src/gcc/regress/test/gcc-dg-lto-ipareference2-01.exe...done.
(gdb) r
Starting program:
/net/hawking/daten/src/gcc/regress/test/gcc-dg-lto-ipareference2-01.exe
Program received signal SIGABRT, Aborted.
0x00000fffb7e18f20 in .raise () from /lib64/power7/libc.so.6
(gdb) up
#1 0x00000fffb7e1abe0 in .abort () from /lib64/power7/libc.so.6
(gdb)
#2 0x0000000010000758 in .other_ltrans ()
(gdb) disass
Dump of assembler code for function .other_ltrans:
0x0000000010000748 <+0>: mflr r0
0x000000001000074c <+4>: std r0,16(r1)
0x0000000010000750 <+8>: stdu r1,-112(r1)
0x0000000010000754 <+12>: bl 0x100004d4
<00000012.plt_call.abort@@GLIBC_2.3+0>
=> 0x0000000010000758 <+16>: ld r2,40(r1)
0x000000001000075c <+20>: .long 0x0
0x0000000010000760 <+24>: .long 0x1
0x0000000010000764 <+28>: lwz r0,0(0)
End of assembler dump.
8640c57182f4279c2125915f1f3e4d4e7ebda7a4 is the first bad commit
commit 8640c57182f4279c2125915f1f3e4d4e7ebda7a4
Author: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu Sep 11 06:48:23 2014 +0000
* varpool.c (varpool_node::ctor_useable_for_folding_p): Do not try
to access removed nodes.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215150
138bc75d-0d04-0410-961f-82ee72b054a4
