http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57366
Bug ID: 57366
Summary: gcc.dg/lto/attr-weakref-1 FAILs
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: hubicka at gcc dot gnu.org
Depends on: 47333
Host: *-*-solaris2.*, x86_64-unknown-linux-gnu
Target: *-*-solaris2.*, x86_64-unknown-linux-gnu
Build: *-*-solaris2.*, x86_64-unknown-linux-gnu
The new gcc.dg/lto/attr-weakref-1 testcase FAILs in two different, but probably
related ways:
On Solaris with Sun as as well as on Linux/x64 configured without weakref
support
(gcc_cv_as_weakref=no when configuring/building), I get
FAIL: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o link, -O0 -flto
-flto-partition=none
UNRESOLVED: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o execute -O0 -flto
-flto-partition=none
FAIL: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o link, -O2 -flto
-flto-partition=none
UNRESOLVED: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o execute -O2 -flto
-flto-partition=none
FAIL: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o link, -O0 -flto
-flto-partition=1to1 (internal compiler error)
UNRESOLVED: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o execute -O0 -flto
-flto-partition=1to1
FAIL: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o link, -O2 -flto
-flto-partition=1to1
UNRESOLVED: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o execute -O2 -flto
-flto-partition=1to1
FAIL: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o link, -O0 -flto
UNRESOLVED: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o execute -O0 -flto
FAIL: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o link, -O2 -flto
UNRESOLVED: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o execute -O2 -flto
For the first failure, I see
output is:
Undefined first referenced^M
symbol in file^M
callmealias.lto_priv.1 /var/tmp//cc0paO3g.lto.o^M
callmealias.lto_priv.2 /var/tmp//cc0paO3g.lto.o^M
ld: fatal: symbol referencing errors. No output written to
gcc-dg-lto-attr-weakref-1-01.exe^M
collect2: error: ld returned 1 exit status^M
in gcc.log. This is probably related to broken LTO support for non-weakref
toolchains, cf. PR lto/47333 which is still unfixed despite being a 4.8/4.9
regression.
Again, on both Solaris and Linux/x64 with gas/gld 2.23.1, I get
FAIL: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o link, -O2 -flto
-flto-partition=none -fuse-linker-plugin -fno-fat-lto-objects
UNRESOLVED: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o execute -O2 -flto
-flto-partition=none -fuse-linker-plugin -fno-fat-lto-objects
WARNING: program timed out.
FAIL: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o link, -O0 -flto
-fuse-linker-plugin -fno-fat-lto-objects
UNRESOLVED: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o execute -O0 -flto
-fuse-linker-plugin -fno-fat-lto-objects
FAIL: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o link, -O2 -flto
-fuse-linker-plugin
UNRESOLVED: gcc.dg/lto/attr-weakref-1
c_lto_attr-weakref-1_0.o-c_lto_attr-weakref-1_2.o execute -O2 -flto
-fuse-linker-plugin
For the first failure, I have
output is:
`callmefirst' referenced in section `.text.startup' of
/var/tmp//cc6Aaqoc.lto.o: defined in discarded section `.text' of
c_lto_attr-weakref-1_0.o (symbol from plugin)^M
`callmesecond' referenced in section `.text.startup' of
/var/tmp//cc6Aaqoc.lto.o: defined in discarded section `.text' of
c_lto_attr-weakref-1_0.o (symbol from plugin)^M
collect2: error: ld returned 1 exit status^M
Rainer
