[Bug lto/65559] [5/6 Regression] lto1.exe: internal compiler error: in read_cgraph_and_symbols, at lto/lto.c:2947

["rainer at emrich-ebersheim dot de" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65559

--- Comment #29 from Rainer Emrich <rainer@emrich-ebersheim.de> ---
(In reply to Matt Breedlove from comment #28)
> If you don't mind, what were the failures you were getting on this one or
> did the original reported errors simply return?

The failures are different now, for example:

Executing on host:
/opt/devel/SCRATCH/tmp.SFHKmXSZ3g/gcc-5.1.1/gcc-5.1.1/gcc/xgcc
-B/opt/devel/SCRATCH/tmp.SFHKmXSZ3g/gcc-5.1.1/gcc-5.1.1/gcc/
/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.1.1/gcc/testsuite/gcc.c-torture/execute/builtins/strcpy-chk.c
/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.1.1/gcc/testsuite/gcc.c-torture/execute/builtins/strcpy-chk-lib.c
/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.1.1/gcc/testsuite/gcc.c-torture/execute/builtins/lib/main.c
 -fno-diagnostics-show-caret -fdiagnostics-color=never  -w  -O2 -flto 
-fno-tree-loop-distribute-patterns -Wl,--allow-multiple-definition  -lm    -o
/opt/devel/SCRATCH/tmp.SFHKmXSZ3g/gcc-5.1.1/gcc-5.1.1/gcc/testsuite/gcc/strcpy-chk.x10
   (timeout = 300)
spawn /opt/devel/SCRATCH/tmp.SFHKmXSZ3g/gcc-5.1.1/gcc-5.1.1/gcc/xgcc
-B/opt/devel/SCRATCH/tmp.SFHKmXSZ3g/gcc-5.1.1/gcc-5.1.1/gcc/
/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.1.1/gcc/testsuite/gcc.c-torture/execute/builtins/strcpy-chk.c
/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.1.1/gcc/testsuite/gcc.c-torture/execute/builtins/strcpy-chk-lib.c
/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.1.1/gcc/testsuite/gcc.c-torture/execute/builtins/lib/main.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -w -O2 -flto
-fno-tree-loop-distribute-patterns -Wl,--allow-multiple-definition -lm -o
/opt/devel/SCRATCH/tmp.SFHKmXSZ3g/gcc-5.1.1/gcc-5.1.1/gcc/testsuite/gcc/strcpy-chk.x10
`main_test' referenced in section `.text.startup' of
D:\Users\RAINER~1.EMR\AppData\Local\Temp\ccWjFUZA.ltrans0.ltrans.o: defined in
discarded section `.text' of D:\msys64\tmp\cc0Zb6D8.o (symbol from plugin)
collect2.exe: error: ld returned 1 exit status
compiler exited with status 1
output is:
`main_test' referenced in section `.text.startup' of
D:\Users\RAINER~1.EMR\AppData\Local\Temp\ccWjFUZA.ltrans0.ltrans.o: defined in
discarded section `.text' of D:\msys64\tmp\cc0Zb6D8.o (symbol from plugin)
collect2.exe: error: ld returned 1 exit status

FAIL: gcc.c-torture/execute/builtins/strcpy-chk.c compilation,  -O2 -flto  


and a lot of failures of the following form:

Executing on host:
/opt/devel/SCRATCH/tmp.SFHKmXSZ3g/gcc-5.1.1/gcc-5.1.1/gcc/xgcc
-B/opt/devel/SCRATCH/tmp.SFHKmXSZ3g/gcc-5.1.1/gcc-5.1.1/gcc/
linker_plugin14720.c  -fno-diagnostics-show-caret -fdiagnostics-color=never 
-flto -fuse-linker-plugin  -lm    -o linker_plugin14720.exe    (timeout = 300)
spawn /opt/devel/SCRATCH/tmp.SFHKmXSZ3g/gcc-5.1.1/gcc-5.1.1/gcc/xgcc
-B/opt/devel/SCRATCH/tmp.SFHKmXSZ3g/gcc-5.1.1/gcc-5.1.1/gcc/
linker_plugin14720.c -fno-diagnostics-show-caret -fdiagnostics-color=never
-flto -fuse-linker-plugin -lm -o linker_plugin14720.exe
xgcc.exe: warning: '-x lto' after last input file has no effect
xgcc.exe: fatal error: no input files
compilation terminated.
lto-wrapper.exe: fatal error:
D:\opt\devel\SCRATCH\tmp.SFHKmXSZ3g\gcc-5.1.1\gcc-5.1.1\gcc\xgcc.exe returned 1
exit status
compilation terminated.
D:\opt\devel\gnu\gcc\MINGW_NT\x86_64-w64-mingw32\mingw-w64-runtime-trunk-svn\gcc-5.1.1\bin\ld.exe:
lto-wrapper failed
collect2.exe: error: ld returned 1 exit status
compiler exited with status 1
output is:
xgcc.exe: warning: '-x lto' after last input file has no effect
xgcc.exe: fatal error: no input files
compilation terminated.
lto-wrapper.exe: fatal error:
D:\opt\devel\SCRATCH\tmp.SFHKmXSZ3g\gcc-5.1.1\gcc-5.1.1\gcc\xgcc.exe returned 1
exit status
compilation terminated.
D:\opt\devel\gnu\gcc\MINGW_NT\x86_64-w64-mingw32\mingw-w64-runtime-trunk-svn\gcc-5.1.1\bin\ld.exe:
lto-wrapper failed
collect2.exe: error: ld returned 1 exit status


This kind of failures were also present without any patch.