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* [Bug target/95154] New: [11 regression] FAIL: g++.dg/abi/pure-virtual1.C -std=c++14 (test for excess errors)
@ 2020-05-15 14:38 schwab@linux-m68k.org
2020-05-15 15:35 ` [Bug target/95154] " schwab@linux-m68k.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: schwab@linux-m68k.org @ 2020-05-15 14:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95154
Bug ID: 95154
Summary: [11 regression] FAIL: g++.dg/abi/pure-virtual1.C
-std=c++14 (test for excess errors)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: schwab@linux-m68k.org
Target Milestone: ---
Target: ia64-*-*
spawn -ignore SIGHUP
/usr/local/gcc/gcc-20200515/Build/gcc/testsuite/g++3/../../xg++
-B/usr/local/gcc/gcc-20200515/Build/gcc/testsuite/g++3/../../
/usr/local/gcc/gcc-20200515/gcc/testsuite/g++.dg/abi/pure-virtual1.C
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -fdiagnostics-urls=never -nostdinc++
-I/usr/local/gcc/gcc-20200515/Build/ia64-suse-linux/libstdc++-v3/include/ia64-suse-linux
-I/usr/local/gcc/gcc-20200515/Build/ia64-suse-linux/libstdc++-v3/include
-I/usr/local/gcc/gcc-20200515/libstdc++-v3/libsupc++
-I/usr/local/gcc/gcc-20200515/libstdc++-v3/include/backward
-I/usr/local/gcc/gcc-20200515/libstdc++-v3/testsuite/util -fmessage-length=0
-std=c++14 -pedantic-errors -Wno-long-long -fno-rtti -nodefaultlibs -lc
-L/usr/local/gcc/gcc-20200515/Build/ia64-suse-linux/./libstdc++-v3/src/.libs
-B/usr/local/gcc/gcc-20200515/Build/ia64-suse-linux/./libstdc++-v3/src/.libs
-L/usr/local/gcc/gcc-20200515/Build/ia64-suse-linux/./libstdc++-v3/src/.libs
-lm -o pure-virtual1.exe
/tmp/ccyWJZLT.o:(.data.rel.ro._ZTV1A[_ZTV1A]+0x10): undefined reference to
`__cxa_pure_virtual'
collect2: error: ld returned 1 exit status
compiler exited with status 1
The reference comes from the vtable for A, the weak declaration for
__cxa_pure_virtual is missing:
.weak _ZTV1A#
.section .data.rel.ro._ZTV1A,"awG",@progbits,_ZTV1A,comdat
.align 8
.type _ZTV1A#, @object
.size _ZTV1A#, 32
_ZTV1A:
data8 0
data8 0
data16.ua @iplt(__cxa_pure_virtual#)
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/95154] [11 regression] FAIL: g++.dg/abi/pure-virtual1.C -std=c++14 (test for excess errors)
2020-05-15 14:38 [Bug target/95154] New: [11 regression] FAIL: g++.dg/abi/pure-virtual1.C -std=c++14 (test for excess errors) schwab@linux-m68k.org
@ 2020-05-15 15:35 ` schwab@linux-m68k.org
2020-05-18 5:54 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: schwab@linux-m68k.org @ 2020-05-15 15:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95154
--- Comment #1 from Andreas Schwab <schwab@linux-m68k.org> ---
The problem is that when output_constant processes a FDESC_EXPR it calls
ASM_OUTPUT_FDESC, which doesn't do weak processing (it doesn't call
assemble_external).
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/95154] [11 regression] FAIL: g++.dg/abi/pure-virtual1.C -std=c++14 (test for excess errors)
2020-05-15 14:38 [Bug target/95154] New: [11 regression] FAIL: g++.dg/abi/pure-virtual1.C -std=c++14 (test for excess errors) schwab@linux-m68k.org
2020-05-15 15:35 ` [Bug target/95154] " schwab@linux-m68k.org
@ 2020-05-18 5:54 ` rguenth at gcc dot gnu.org
2020-06-04 8:04 ` cvs-commit at gcc dot gnu.org
2020-06-09 13:18 ` schwab@linux-m68k.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-05-18 5:54 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95154
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |11.0
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/95154] [11 regression] FAIL: g++.dg/abi/pure-virtual1.C -std=c++14 (test for excess errors)
2020-05-15 14:38 [Bug target/95154] New: [11 regression] FAIL: g++.dg/abi/pure-virtual1.C -std=c++14 (test for excess errors) schwab@linux-m68k.org
2020-05-15 15:35 ` [Bug target/95154] " schwab@linux-m68k.org
2020-05-18 5:54 ` rguenth at gcc dot gnu.org
@ 2020-06-04 8:04 ` cvs-commit at gcc dot gnu.org
2020-06-09 13:18 ` schwab@linux-m68k.org
3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-06-04 8:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95154
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Andreas Schwab <schwab@gcc.gnu.org>:
https://gcc.gnu.org/g:9b4e77e807e0099c3cfbf9c5b0c9e4154b9cb7a0
commit r11-896-g9b4e77e807e0099c3cfbf9c5b0c9e4154b9cb7a0
Author: Andreas Schwab <schwab@suse.de>
Date: Fri May 15 17:38:30 2020 +0200
Fix missing assemble_external in ASM_OUTPUT_FDESC
When TARGET_VTABLE_USES_DESCRIPTORS is defined then function pointers in
the vtable are output by ASM_OUTPUT_FDESC. The only current user of
this is ia64, but its implementation of ASM_OUTPUT_FDESC lacks a call to
assemble_external. Thus if there is no other reference to the function
the weak declaration for it will be missing.
PR target/95154
* config/ia64/ia64.h (ASM_OUTPUT_FDESC): Call assemble_external.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/95154] [11 regression] FAIL: g++.dg/abi/pure-virtual1.C -std=c++14 (test for excess errors)
2020-05-15 14:38 [Bug target/95154] New: [11 regression] FAIL: g++.dg/abi/pure-virtual1.C -std=c++14 (test for excess errors) schwab@linux-m68k.org
` (2 preceding siblings ...)
2020-06-04 8:04 ` cvs-commit at gcc dot gnu.org
@ 2020-06-09 13:18 ` schwab@linux-m68k.org
3 siblings, 0 replies; 5+ messages in thread
From: schwab@linux-m68k.org @ 2020-06-09 13:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95154
Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|ia64-*-*,*-*-darwin* |ia64-*-*
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Andreas Schwab <schwab@linux-m68k.org> ---
Fixed.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-06-09 13:18 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2020-05-15 14:38 [Bug target/95154] New: [11 regression] FAIL: g++.dg/abi/pure-virtual1.C -std=c++14 (test for excess errors) schwab@linux-m68k.org
2020-05-15 15:35 ` [Bug target/95154] " schwab@linux-m68k.org
2020-05-18 5:54 ` rguenth at gcc dot gnu.org
2020-06-04 8:04 ` cvs-commit at gcc dot gnu.org
2020-06-09 13:18 ` schwab@linux-m68k.org
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