[PATCH] gcc/gcc.c: XNEWVEC enough space for 'saved_suffix' using

[Bin.Cheng]

On Sun, Aug 17, 2014 at 6:48 PM, Chen Gang <gang.chen.5i5j@gmail.com> wrote:
> On 08/10/2014 04:15 PM, Chen Gang wrote:
>> On 08/10/2014 04:03 PM, Mike Stump wrote:
>>> On Aug 9, 2014, at 9:55 AM, Chen Gang <gang.chen.5i5j@gmail.com> wrote:
>>>>> <save various .sum files>
>>>>
>>>> Excuse me, I can not find it with `find ./ | grep "\.sum$"`
>>>
>>> Then you didn't do a test suite run.  make check will create .sum files.  Try cd gcc && make check.  Then in testsuite/gcc/gcc.sum there will be a file.
>>>
>
> After check again, I found, I did not install runtest (but it skipped,
> and let "make check" OK), after install from 'dejagnu', can have real
> effect. At present (just running "make check"), some results are:
>
>   Running /upstream/toolchain/gcc/gcc/testsuite/gcc.c-torture/compile/compile.exp ...
>   FAIL: gcc.c-torture/compile/20001226-1.c   -O0  (internal compiler error)
>   FAIL: gcc.c-torture/compile/20001226-1.c   -O0  (test for excess errors)
>   FAIL: gcc.c-torture/compile/20001226-1.c   -O3 -g  (internal compiler error)
>   FAIL: gcc.c-torture/compile/20001226-1.c   -O3 -g  (test for excess errors)
>   FAIL: gcc.c-torture/compile/limits-blockid.c   -O0  (internal compiler error)
>   FAIL: gcc.c-torture/compile/limits-blockid.c   -O0  (test for excess errors)
>   FAIL: gcc.c-torture/compile/limits-caselabels.c   -O1  (internal compiler error)
>   FAIL: gcc.c-torture/compile/limits-caselabels.c   -O1  (test for excess errors)
>   FAIL: gcc.c-torture/compile/limits-enumconst.c   -O0  (internal compiler error)
>   FAIL: gcc.c-torture/compile/limits-enumconst.c   -O0  (test for excess errors)
>   FAIL: gcc.c-torture/compile/limits-enumconst.c   -O1  (internal compiler error)
>   FAIL: gcc.c-torture/compile/limits-enumconst.c   -O1  (test for excess errors)
>   FAIL: gcc.c-torture/compile/limits-enumconst.c   -O3 -g  (internal compiler error)
>   FAIL: gcc.c-torture/compile/limits-enumconst.c   -O3 -g  (test for excess errors)
>   FAIL: gcc.c-torture/compile/limits-enumconst.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  (internal compiler error)
>   FAIL: gcc.c-torture/compile/limits-enumconst.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  (test for excess errors)
>   FAIL: gcc.c-torture/compile/limits-externalid.c   -O3 -g  (internal compiler error)
>   FAIL: gcc.c-torture/compile/limits-externalid.c   -O3 -g  (test for excess errors)
>   FAIL: gcc.c-torture/compile/limits-externalid.c   -Os  (internal compiler error)
>   FAIL: gcc.c-torture/compile/limits-externalid.c   -Os  (test for excess errors)
>   FAIL: gcc.c-torture/compile/limits-externdecl.c   -O2  (test for excess errors)
Hi,
You can run below command for a single failed case, which makes it
easier to identify the problem.
$ make check-gcc RUNTESTFLAGS="compile.exp=20001226-1.c"
Then you could look into file gcc/testsuite/gcc/gcc.log for stack
back-trace of internal compiler error.  Usually ICE is easy to
reslove, most likely your change overlooks some simple cases.

Thanks,
bin

>   ...
>
> Do these contents mean: I make any incorrect configuration, again?
>
>
>>
>> OK, thanks, I built it under individual directory "build-gcc", I guess
>> your meaning is "cd ./build-gcc/gcc && make check". If what I guess is
>> incorrect, please let me know, thanks.
>>
>>>> After comparing, should the related ".sum" files be the same (same means
>>>> pass checking)?
>>>
>>> No, use contrib/compare_tests before_dir after_dir  :-)  If you _save_off the .sum files, you can use the places where you same them off.  If you use two trees, you can just use them directly (no saving off).
>>>
>>> where the two are the build directories that you did a make check in.  The output will be in simple english and should be readily understandable.
>>>
>
> After try, I found your information about 2 build directories are very
> useful for me, which can same much time under smp machine.
>
> And sorry, I did not finish "make check" at the time point. I wasted my
> time resources (of my free time) on constructing PC environments and my
> x86_64 laptop environments.
>
>  - x86_64 laptop under ubuntu: try to update 'libc6' package to install
>    'autogen'. At last, I succeed: overwrite libc6 package files under
>    individual living system, and then modify dpkg config file manually.
>
>  - PC environments: I failed, the reason is my PC hardware is not stable
>    enough (low quality). After building several hours, the machine will
>    reboot automatically (tried several times, each needs several hours).
>
> And I shall try to finish as soon as possible (may tomorrow or the day
> after tomorrow, under Mac book, and within a week under x86_64 laptop).
>
>>
>> OK, Thanks, and I shall try to finish within next week (one building is
>> still very long, although I have switched to mac book -- more higher
>> performance machine).
>>
>>
>> Thanks.
>>
>
> Thanks.
> --
> Chen Gang
>
> Open, share, and attitude like air, water, and life which God blessed