* [Bug target/55143] vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus)
2012-10-31 3:35 [Bug target/55143] New: vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus) amylaar at gcc dot gnu.org
@ 2014-07-31 20:58 ` mliska at suse dot cz
2014-08-27 2:12 ` jbglaw@lug-owl.de
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: mliska at suse dot cz @ 2014-07-31 20:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55143
Martin Liška <mliska at suse dot cz> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mliska at suse dot cz
--- Comment #1 from Martin Liška <mliska at suse dot cz> ---
Problem is still present in 4.10.0.
>From gcc-bugs-return-457497-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Jul 31 21:12:19 2014
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From: "carrot at google dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/61984] New: use mr. to remove extra cmp instruction on ppc
Date: Thu, 31 Jul 2014 21:12:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 4.10.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: carrot at google dot com
X-Bugzilla-Status: UNCONFIRMED
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ida984
Bug ID: 61984
Summary: use mr. to remove extra cmp instruction on ppc
Product: gcc
Version: 4.10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: carrot at google dot com
Target: powerpc64le
Compile following code with options -m64 -mcpu=power8 -O2
extern void free (void *__ptr);
void my_free ( void* p, void* addr )
{
if (addr != ((void *)0)) free ( addr );
}
Trunk gcc generates:
my_free:
0: addis 2,12,.TOC.-0b@ha
addi 2,2,.TOC.-0b@l
.localentry my_free,.-my_free
cmpdi 0,4,0 // mr. 3,4
beqlr 0 // beqlr 0
mflr 0 // mflr 0
mr 3,4 //
std 0,16(1)
stdu 1,-32(1)
bl free
nop
addi 1,1,32
ld 0,16(1)
mtlr 0
blr
The instructions from cmpdi to mr can be changed to following
mr. 3, 4
beqlr 0
mflr 0
...
so we can remove the cmpdi instruction.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/55143] vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus)
2012-10-31 3:35 [Bug target/55143] New: vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus) amylaar at gcc dot gnu.org
2014-07-31 20:58 ` [Bug target/55143] " mliska at suse dot cz
@ 2014-08-27 2:12 ` jbglaw@lug-owl.de
2015-04-08 19:04 ` aldot at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jbglaw@lug-owl.de @ 2014-08-27 2:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55143
Jan-Benedict Glaw <jbglaw@lug-owl.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jbglaw@lug-owl.de
--- Comment #2 from Jan-Benedict Glaw <jbglaw@lug-owl.de> ---
With today's GCC (2014-08-26, r214550, build
http://toolchain.lug-owl.de/buildbot/show_build_details.php?id=347199), this is
still present:
g++ -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic
-Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common
-DHAVE_CONFIG_H -static-libstdc++ -static-libgcc -o cc1plus \
cp/cp-lang.o c-family/stub-objc.o cp/call.o cp/decl.o cp/expr.o cp/pt.o
cp/typeck2.o cp/class.o cp/decl2.o cp/error.o cp/lex.o cp/parser.o cp/ptree.o
cp/rtti.o cp/typeck.o cp/cvt.o cp/except.o cp/friend.o cp/init.o cp/method.o
cp/search.o cp/semantics.o cp/tree.o cp/repo.o cp/dump.o cp/optimize.o
cp/mangle.o cp/cp-objcp-common.o cp/name-lookup.o cp/cxx-pretty-print.o
cp/cp-cilkplus.o cp/cp-gimplify.o cp/cp-array-notation.o cp/lambda.o
cp/vtable-class-hierarchy.o attribs.o incpath.o c-family/c-common.o
c-family/c-cppbuiltin.o c-family/c-dump.o c-family/c-format.o
c-family/c-gimplify.o c-family/c-lex.o c-family/c-omp.o c-family/c-opts.o
c-family/c-pch.o c-family/c-ppoutput.o c-family/c-pragma.o
c-family/c-pretty-print.o c-family/c-semantics.o c-family/c-ada-spec.o
c-family/c-cilkplus.o c-family/array-notation-common.o c-family/cilk.o
c-family/c-ubsan.o vms-c.o default-c.o cc1plus-checksum.o libbackend.a main.o
tree-browser.o libcommon-target.a libcommon.a ../libcpp/libcpp.a
../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a
../libbacktrace/.libs/libbacktrace.a ../libiberty/libiberty.a
../libdecnumber/libdecnumber.a -L/opt/cfarm/mpc/lib -lmpc -lmpfr -lgmp
-rdynamic -ldl -L../zlib -lz
/usr/bin/ld: Dwarf Error: found dwarf version '4', this reader only handles
version 2 and 3 information.
vms-c.o: In function `handle_pragma_pointer_size(char const*)':
vms-c.c:(.text+0x6cd): undefined reference to `c_default_pointer_mode'
/usr/bin/ld: Dwarf Error: found dwarf version '0', this reader only handles
version 2 and 3 information.
vms-c.c:(.text+0x6e2): undefined reference to `c_default_pointer_mode'
/usr/bin/ld: Dwarf Error: found dwarf version '17874', this reader only handles
version 2 and 3 information.
vms-c.c:(.text+0x6fa): undefined reference to `c_default_pointer_mode'
/usr/bin/ld: Dwarf Error: found dwarf version '33796', this reader only handles
version 2 and 3 information.
vms-c.c:(.text+0x718): undefined reference to `c_default_pointer_mode'
/usr/bin/ld: Dwarf Error: found dwarf version '22528', this reader only handles
version 2 and 3 information.
vms-c.o: In function `vms_c_common_override_options()':
vms-c.c:(.text+0x9fc): undefined reference to `c_default_pointer_mode'
/usr/bin/ld: Dwarf Error: found dwarf version '12288', this reader only handles
version 2 and 3 information.
vms-c.o:vms-c.c:(.text+0xa12): more undefined references to
`c_default_pointer_mode' follow
collect2: error: ld returned 1 exit status
make[2]: *** [cc1plus] Error 1
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/55143] vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus)
2012-10-31 3:35 [Bug target/55143] New: vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus) amylaar at gcc dot gnu.org
2014-07-31 20:58 ` [Bug target/55143] " mliska at suse dot cz
2014-08-27 2:12 ` jbglaw@lug-owl.de
@ 2015-04-08 19:04 ` aldot at gcc dot gnu.org
2015-04-10 7:55 ` aldot at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: aldot at gcc dot gnu.org @ 2015-04-08 19:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55143
Bernhard Reutner-Fischer <aldot at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed|2013-02-27 00:00:00 |2015-04-08
CC| |aldot at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #3 from Bernhard Reutner-Fischer <aldot at gcc dot gnu.org> ---
Confirmed with trunk@221914.
c/c-decl.o gets linked into cc1 but not into cc1plus.
Sounds like c_default_pointer_mode should be moved to e.g. c-family/c-common.c
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/55143] vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus)
2012-10-31 3:35 [Bug target/55143] New: vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus) amylaar at gcc dot gnu.org
` (2 preceding siblings ...)
2015-04-08 19:04 ` aldot at gcc dot gnu.org
@ 2015-04-10 7:55 ` aldot at gcc dot gnu.org
2015-04-10 8:06 ` aldot at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: aldot at gcc dot gnu.org @ 2015-04-10 7:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55143
--- Comment #4 from Bernhard Reutner-Fischer <aldot at gcc dot gnu.org> ---
Author: aldot
Date: Fri Apr 10 07:54:46 2015
New Revision: 221968
URL: https://gcc.gnu.org/viewcvs?rev=221968&root=gcc&view=rev
Log:
PR target/55143: undefined reference to c_default_pointer_mode
for all-gcc on ia64-hp-vms
gcc/c/ChangeLog:
2015-04-10 Bernhard Reutner-Fischer <aldot@gcc.gnu.org>
PR target/55143
* c-decl.c (c_default_pointer_mode): Remove definition.
* c-tree.h (c_default_pointer_mode): Remove declaration.
gcc/c-family/ChangeLog:
2015-04-10 Bernhard Reutner-Fischer <aldot@gcc.gnu.org>
PR target/55143
* c-common.c (c_default_pointer_mode): Add definition.
* c-common.h (c_default_pointer_mode): Add declaration.
Modified:
trunk/gcc/c-family/ChangeLog
trunk/gcc/c-family/c-common.c
trunk/gcc/c-family/c-common.h
trunk/gcc/c/ChangeLog
trunk/gcc/c/c-decl.c
trunk/gcc/c/c-tree.h
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/55143] vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus)
2012-10-31 3:35 [Bug target/55143] New: vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus) amylaar at gcc dot gnu.org
` (3 preceding siblings ...)
2015-04-10 7:55 ` aldot at gcc dot gnu.org
@ 2015-04-10 8:06 ` aldot at gcc dot gnu.org
2021-08-26 5:26 ` pinskia at gcc dot gnu.org
2021-08-26 5:26 ` pinskia at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: aldot at gcc dot gnu.org @ 2015-04-10 8:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55143
Bernhard Reutner-Fischer <aldot at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |gingold at gcc dot gnu.org,
| |rupp at gnat dot com
Known to work| |5.0
--- Comment #5 from Bernhard Reutner-Fischer <aldot at gcc dot gnu.org> ---
Fixed on the trunk for 5.0.
Eventual backport including beef-up of the impl is left to the port
maintainers.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/55143] vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus)
2012-10-31 3:35 [Bug target/55143] New: vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus) amylaar at gcc dot gnu.org
` (4 preceding siblings ...)
2015-04-10 8:06 ` aldot at gcc dot gnu.org
@ 2021-08-26 5:26 ` pinskia at gcc dot gnu.org
2021-08-26 5:26 ` pinskia at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-26 5:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55143
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |5.0
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug target/55143] vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus)
2012-10-31 3:35 [Bug target/55143] New: vms-c.o:(.toc+0x0): undefined reference to `c_default_pointer_mode' (building cc1plus) amylaar at gcc dot gnu.org
` (5 preceding siblings ...)
2021-08-26 5:26 ` pinskia at gcc dot gnu.org
@ 2021-08-26 5:26 ` pinskia at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-26 5:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55143
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jay.krell at cornell dot edu
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 58765 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 8+ messages in thread