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* [Bug ada/47056] New: [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux
@ 2010-12-23 20:21 laurent at guerby dot net
2010-12-27 19:05 ` [Bug ada/47056] " jakub at gcc dot gnu.org
` (10 more replies)
0 siblings, 11 replies; 12+ messages in thread
From: laurent at guerby dot net @ 2010-12-23 20:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056
Summary: [4.6 Regression] 10 Ada ACATS tests fail to link with
undefined reference on ia64-linux
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: link-failure
Severity: normal
Priority: P3
Component: ada
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: laurent@guerby.net
Host: ia64-linux
Target: ia64-linux
Build: ia64-linux
From:
http://gcc.gnu.org/ml/gcc-testresults/2010-12/msg02106.html
The following ACATS FAIL with the same kind of linker error:
FAIL: c390002
FAIL: c392002
FAIL: c392003
FAIL: c392013
FAIL: c393008
FAIL: c393009
FAIL: c760013
FAIL: cd72a02
FAIL: cdd2a01
FAIL: cdd2a03
gnatlink c390002.ali -O2 --GCC=/home/guerby/build/gcc/xgcc
-B/home/guerby/build/gcc/
./c390002.o: In function `_ada_c390002':
c390002.adb:(.text+0x1070): undefined reference to
`c390002__vehicle___alignment.1865'
c390002.adb:(.text+0x1071): undefined reference to
`c390002__vehicle__objectDF.1869'
c390002.adb:(.text+0x1072): undefined reference to
`c390002__vehicle__create.1880'
c390002.adb:(.text+0x1082): undefined reference to
`c390002__vehicle__wheels.1883'
c390002.adb:(.text+0x16d0): undefined reference to
`c390002__motivators___alignment.2087'
c390002.adb:(.text+0x1cc0): undefined reference to
`c390002__motivators___alignment__2.2292'
c390002.adb:(.text+0x22a0): undefined reference to
`c390002__motivators___alignment__3.2497'
collect2: ld returned 1 exit status
gnatlink: error when calling /home/guerby/build/gcc/xgcc
gnatlink: error when calling /home/guerby/build/gcc/xgcc
gnatmake: *** link failed.
...
gnatlink cdd2a03.ali -O2 --GCC=/home/guerby/build/gcc/xgcc
-B/home/guerby/build/gcc/
./cdd2a03.o: In function `_ada_cdd2a03':
cdd2a03.adb:(.text+0x1520): undefined reference to `cdd2a03___alignment.2046'
cdd2a03.adb:(.text+0x1600): undefined reference to `cdd2a03__parentDF.2073'
cdd2a03.adb:(.text+0x1b92): undefined reference to
`cdd2a03___alignment__2.2511'
cdd2a03.adb:(.text+0x20b2): undefined reference to
`cdd2a03___alignment__3.2709'
collect2: ld returned 1 exit status
gnatlink: error when calling /home/guerby/build/gcc/xgcc
gnatmake: *** link failed.
(The other two FAIL are unrelated)
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug ada/47056] [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux
2010-12-23 20:21 [Bug ada/47056] New: [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux laurent at guerby dot net
@ 2010-12-27 19:05 ` jakub at gcc dot gnu.org
2010-12-27 22:26 ` laurent at guerby dot net
` (9 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-12-27 19:05 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P5
CC| |jakub at gcc dot gnu.org
Target Milestone|--- |4.6.0
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug ada/47056] [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux
2010-12-23 20:21 [Bug ada/47056] New: [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux laurent at guerby dot net
2010-12-27 19:05 ` [Bug ada/47056] " jakub at gcc dot gnu.org
@ 2010-12-27 22:26 ` laurent at guerby dot net
2010-12-28 8:48 ` laurent at guerby dot net
` (8 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: laurent at guerby dot net @ 2010-12-27 22:26 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056
Laurent GUERBY <laurent at guerby dot net> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ebotcazou at gcc dot
| |gnu.org
--- Comment #1 from Laurent GUERBY <laurent at guerby dot net> 2010-12-27 22:26:40 UTC ---
I took one of the test and it fails to link at -O2 and -O1 but works and PASS
at -O0, see below. So I'm assuming some optimization is creating the issue, any
idea on what to look for?
guerby@Babe:~/tmp$ gnatmake -f -O2 c390002.adb
gcc -c -O2 c390002.adb
c390002.adb:101:11: warning: unreachable code
gcc -c -O2 report.adb
report.adb:312:30: warning: index for "NAM" may assume lower bound of 1
report.adb:312:30: warning: suggested replacement: "NAM'First + 2"
report.adb:312:33: warning: index for "NAM" may assume lower bound of 1
report.adb:312:33: warning: suggested replacement: "NAM'First + 6"
gnatbind -x c390002.ali
gnatlink c390002.ali -O2
./c390002.o: In function `_ada_c390002':
c390002.adb:(.text+0x1070): undefined reference to
`c390002__vehicle___alignment.1865'
c390002.adb:(.text+0x1071): undefined reference to
`c390002__vehicle__objectDF.1869'
c390002.adb:(.text+0x1072): undefined reference to
`c390002__vehicle__create.1880'
c390002.adb:(.text+0x1082): undefined reference to
`c390002__vehicle__wheels.1883'
c390002.adb:(.text+0x16d0): undefined reference to
`c390002__motivators___alignment.2087'
c390002.adb:(.text+0x1cc0): undefined reference to
`c390002__motivators___alignment__2.2292'
c390002.adb:(.text+0x22a0): undefined reference to
`c390002__motivators___alignment__3.2497'
collect2: ld returned 1 exit status
gnatlink: error when calling /home/guerby/install-trunk/bin/gcc
gnatmake: *** link failed.
guerby@Babe:~/tmp$ gnatmake -f -O1 c390002.adb
gcc -c -O1 c390002.adb
c390002.adb:101:11: warning: unreachable code
gcc -c -O1 report.adb
report.adb:312:30: warning: index for "NAM" may assume lower bound of 1
report.adb:312:30: warning: suggested replacement: "NAM'First + 2"
report.adb:312:33: warning: index for "NAM" may assume lower bound of 1
report.adb:312:33: warning: suggested replacement: "NAM'First + 6"
gnatbind -x c390002.ali
gnatlink c390002.ali -O1
./c390002.o: In function `_ada_c390002':
c390002.adb:(.text+0x1041): undefined reference to
`c390002__vehicle___alignment.1865'
c390002.adb:(.text+0x1081): undefined reference to
`c390002__vehicle__objectDF.1869'
c390002.adb:(.text+0x11a0): undefined reference to
`c390002__vehicle__wheels.1883'
c390002.adb:(.text+0x1781): undefined reference to
`c390002__motivators___alignment.2087'
c390002.adb:(.text+0x18a0): undefined reference to
`c390002__vehicle__wheels.1883'
c390002.adb:(.text+0x1e71): undefined reference to
`c390002__motivators___alignment__2.2292'
c390002.adb:(.text+0x1f70): undefined reference to
`c390002__vehicle__wheels.1883'
c390002.adb:(.text+0x2531): undefined reference to
`c390002__motivators___alignment__3.2497'
c390002.adb:(.text+0x2620): undefined reference to
`c390002__vehicle__wheels.1883'
collect2: ld returned 1 exit status
gnatlink: error when calling /home/guerby/install-trunk/bin/gcc
gnatmake: *** link failed.
guerby@Babe:~/tmp$ gnatmake -f -O0 c390002.adb
gcc -c -O0 c390002.adb
c390002.adb:101:11: warning: unreachable code
gcc -c -O0 report.adb
report.adb:312:30: warning: index for "NAM" may assume lower bound of 1
report.adb:312:30: warning: suggested replacement: "NAM'First + 2"
report.adb:312:33: warning: index for "NAM" may assume lower bound of 1
report.adb:312:33: warning: suggested replacement: "NAM'First + 6"
gnatbind -x c390002.ali
gnatlink c390002.ali -O0
guerby@Babe:~/tmp$ ./c390002
,.,. C390002 ACATS 2.5 10-12-27 23:26:15
---- C390002 Check that a tagged type may be declared and derived from
in simple, private and extended forms. Check package
Ada.Tags.
==== C390002 PASSED ============================.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug ada/47056] [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux
2010-12-23 20:21 [Bug ada/47056] New: [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux laurent at guerby dot net
2010-12-27 19:05 ` [Bug ada/47056] " jakub at gcc dot gnu.org
2010-12-27 22:26 ` laurent at guerby dot net
@ 2010-12-28 8:48 ` laurent at guerby dot net
2010-12-28 15:22 ` ebotcazou at gcc dot gnu.org
` (7 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: laurent at guerby dot net @ 2010-12-28 8:48 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056
--- Comment #2 from Laurent GUERBY <laurent at guerby dot net> 2010-12-28 08:48:11 UTC ---
Reduced test case:
procedure C390002 is
type Object is tagged null record;
begin
null;
end C390002;
guerby@Babe:~/tmp$ gnatmake -f -O1 c390002.adb
gcc -c -O1 c390002.adb
gnatbind -x c390002.ali
gnatlink c390002.ali -O1
./c390002.o: In function `_ada_c390002':
c390002.adb:(.text+0x661): undefined reference to `c390002___alignment.1835'
c390002.adb:(.text+0x6a1): undefined reference to `c390002__objectSR.1844'
c390002.adb:(.text+0x6e1): undefined reference to `c390002__objectSW.1850'
c390002.adb:(.text+0x771): undefined reference to `c390002__objectSO.1861'
c390002.adb:(.text+0x7b1): undefined reference to `c390002__Oeq.1865'
c390002.adb:(.text+0x7f1): undefined reference to `c390002___assign.1869'
c390002.adb:(.text+0x831): undefined reference to `c390002__objectDA.1887'
c390002.adb:(.text+0x871): undefined reference to `c390002__objectDF.1891'
collect2: ld returned 1 exit status
gnatlink: error when calling /home/guerby/install-trunk/bin/gcc
gnatmake: *** link failed.
guerby@Babe:~/tmp$ gnatmake -f -O0 c390002.adb
gcc -c -O0 c390002.adb
gnatbind -x c390002.ali
gnatlink c390002.ali -O0
guerby@Babe:~/tmp$
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug ada/47056] [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux
2010-12-23 20:21 [Bug ada/47056] New: [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux laurent at guerby dot net
` (2 preceding siblings ...)
2010-12-28 8:48 ` laurent at guerby dot net
@ 2010-12-28 15:22 ` ebotcazou at gcc dot gnu.org
2010-12-28 15:23 ` ebotcazou at gcc dot gnu.org
` (6 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2010-12-28 15:22 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2010.12.28 15:21:44
Version|unknown |4.6.0
Ever Confirmed|0 |1
--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2010-12-28 15:21:44 UTC ---
> I took one of the test and it fails to link at -O2 and -O1 but works and PASS
> at -O0, see below. So I'm assuming some optimization is creating the issue,
> any idea on what to look for?
Probably a hole related to descriptors in reachability analysis. The dump file
.043i.whole-program contains:
Reclaiming functions: P.Objectdf P.Objectda P P."=" P.Objectso P.Objectsw
P.Objectsr P
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug ada/47056] [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux
2010-12-23 20:21 [Bug ada/47056] New: [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux laurent at guerby dot net
` (3 preceding siblings ...)
2010-12-28 15:22 ` ebotcazou at gcc dot gnu.org
@ 2010-12-28 15:23 ` ebotcazou at gcc dot gnu.org
2011-01-02 19:14 ` ebotcazou at gcc dot gnu.org
` (5 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2010-12-28 15:23 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC|ebotcazou at gcc dot |
|gnu.org |
AssignedTo|unassigned at gcc dot |ebotcazou at gcc dot
|gnu.org |gnu.org
--- Comment #4 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2010-12-28 15:23:28 UTC ---
Investigating.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug ada/47056] [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux
2010-12-23 20:21 [Bug ada/47056] New: [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux laurent at guerby dot net
` (4 preceding siblings ...)
2010-12-28 15:23 ` ebotcazou at gcc dot gnu.org
@ 2011-01-02 19:14 ` ebotcazou at gcc dot gnu.org
2011-01-04 10:51 ` [Bug tree-optimization/47056] " ebotcazou at gcc dot gnu.org
` (4 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2011-01-02 19:14 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu.org
--- Comment #5 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-01-02 19:14:22 UTC ---
The problem is that CCP turns:
pr47056___alignment.46_308 = pr47056___alignment;
D.2264_309 = MEM[(struct *)pr47056___alignment.46_308].D.227;
into
D.2264_309 = MEM[(struct *)pr47056___alignment].D.227;
(pr47056___alignment being a function) and while walk_stmt_load_store_addr_ops
recognizes the former as an address-of pattern (the & is implicit for
functions), it doesn't for the latter (unlike for TARGET_MEM_REF) so
build_cgraph_edges is fooled and missed the reference to pr47056___alignment.
Richard, I presume that the latter form must be deemed invalid GIMPLE?
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/47056] [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux
2010-12-23 20:21 [Bug ada/47056] New: [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux laurent at guerby dot net
` (5 preceding siblings ...)
2011-01-02 19:14 ` ebotcazou at gcc dot gnu.org
@ 2011-01-04 10:51 ` ebotcazou at gcc dot gnu.org
2011-01-04 10:53 ` ebotcazou at gcc dot gnu.org
` (3 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2011-01-04 10:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|ada |tree-optimization
--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-01-04 10:51:15 UTC ---
Recategorizing.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/47056] [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux
2010-12-23 20:21 [Bug ada/47056] New: [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux laurent at guerby dot net
` (6 preceding siblings ...)
2011-01-04 10:51 ` [Bug tree-optimization/47056] " ebotcazou at gcc dot gnu.org
@ 2011-01-04 10:53 ` ebotcazou at gcc dot gnu.org
2011-01-04 23:22 ` ebotcazou at gcc dot gnu.org
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2011-01-04 10:53 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056
--- Comment #7 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-01-04 10:53:14 UTC ---
Created attachment 22895
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22895
Tentative fix
This doesn't change GIMPLE but instead tweaks reachability analysis.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/47056] [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux
2010-12-23 20:21 [Bug ada/47056] New: [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux laurent at guerby dot net
` (7 preceding siblings ...)
2011-01-04 10:53 ` ebotcazou at gcc dot gnu.org
@ 2011-01-04 23:22 ` ebotcazou at gcc dot gnu.org
2011-01-04 23:26 ` ebotcazou at gcc dot gnu.org
2011-01-10 11:47 ` laurent at guerby dot net
10 siblings, 0 replies; 12+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2011-01-04 23:22 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056
--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-01-04 23:22:35 UTC ---
Author: ebotcazou
Date: Tue Jan 4 23:22:31 2011
New Revision: 168493
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168493
Log:
PR tree-optimization/47056
* cgraphbuild.c (mark_address): Remove ATTRIBUTE_UNUSED markers.
(mark_load): Likewise. Handle FUNCTION_DECL specially.
(mark_store): Likewise. Pass STMT to ipa_record_reference.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/cgraphbuild.c
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/47056] [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux
2010-12-23 20:21 [Bug ada/47056] New: [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux laurent at guerby dot net
` (8 preceding siblings ...)
2011-01-04 23:22 ` ebotcazou at gcc dot gnu.org
@ 2011-01-04 23:26 ` ebotcazou at gcc dot gnu.org
2011-01-10 11:47 ` laurent at guerby dot net
10 siblings, 0 replies; 12+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2011-01-04 23:26 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #9 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-01-04 23:25:56 UTC ---
Applied.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/47056] [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux
2010-12-23 20:21 [Bug ada/47056] New: [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux laurent at guerby dot net
` (9 preceding siblings ...)
2011-01-04 23:26 ` ebotcazou at gcc dot gnu.org
@ 2011-01-10 11:47 ` laurent at guerby dot net
10 siblings, 0 replies; 12+ messages in thread
From: laurent at guerby dot net @ 2011-01-10 11:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056
--- Comment #10 from Laurent GUERBY <laurent at guerby dot net> 2011-01-10 09:37:23 UTC ---
Thanks Eric :)
http://gcc.gnu.org/ml/gcc-testresults/2011-01/msg00728.html
LAST_UPDATED: Sat Jan 8 23:02:58 UTC 2011 (revision 168603)
=== acats tests ===
FAIL: cb1010c
FAIL: cb1010d
=== acats Summary ===
# of expected passes 2319
# of unexpected failures 2
Native configuration is ia64-unknown-linux-gnu
^ permalink raw reply [flat|nested] 12+ messages in thread
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2010-12-27 19:05 ` [Bug ada/47056] " jakub at gcc dot gnu.org
2010-12-27 22:26 ` laurent at guerby dot net
2010-12-28 8:48 ` laurent at guerby dot net
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