[PATCH] D40202: Add opt-viewer testing

[Zachary Turner via llvm-commits]

This almost works.  I'm getting some errors about
multiprocessing.cpu_count() being unable to determine the number of CPUs on
my machine.  It looks like llvm has its own cpu count detection function in
lit/lit/util.py.  I guess we should use that?  Not sure why it's broken on
my machine.  I can fix this later since it seems to be specific to my
machine.

On Wed, Nov 29, 2017 at 9:11 AM Adam Nemet <anemet at apple.com> wrote:

> On Nov 28, 2017, at 5:44 PM, Adam Nemet <anemet at apple.com> wrote:
>
>
> On Nov 28, 2017, at 5:39 PM, Davide Italiano <davide at freebsd.org> wrote:
>
> On Tue, Nov 28, 2017 at 4:12 PM, Adam Nemet via llvm-commits
> <llvm-commits at lists.llvm.org> wrote:
>
>
> On Nov 28, 2017, at 3:56 PM, Zachary Turner <zturner at google.com> wrote:
>
> This is failing for me on Windows.
>
> $ "C:\Python27\python.exe"
> "D:/src/llvm-mono/llvm/tools/opt-viewer/opt-viewer.py" "-s"
> "D:\src\llvm-mono\llvm\test\tools\opt-viewer/Inputs" "-o"
>
> "D:\src\llvmbuild\clang\Debug\x86\test\tools\opt-viewer\Output\basic.test.tmp"
> "D:\src\llvm-mono\llvm\test\tools\opt-viewer/Inputs/basic/or.yaml"
> "--no-highlight"
> # command stderr:
> Traceback (most recent call last):
> File "D:/src/llvm-mono/llvm/tools/opt-viewer/opt-viewer.py", line 20, in
> <module>
>   import optrecord
> File "D:\src\llvm-mono\llvm\tools\opt-viewer\optrecord.py", line 30, in
> <module>
>   p = subprocess.Popen(['c++filt', '-n'], stdin=subprocess.PIPE,
> stdout=subprocess.PIPE)
> File "C:\Python27\lib\subprocess.py", line 390, in __init__
>   errread, errwrite)
> File "C:\Python27\lib\subprocess.py", line 640, in _execute_child
>   startupinfo)
> WindowsError: [Error 2] The system cannot find the file specified
>
> error: command failed with exit status: 1
>
> What is c++filt supposed to be, because I don't have it.
>
>
> You can probably fallback on llvm-cxxfilt, for Itanium, and leave the
> symbol unmangled on Windows.
>
>
> Yeah, I think I just add an option to override the demangler and pass in
> llvm-cxxfilt from the build when running the test.  The main problem was
> that macOS does not have llvm-cxxfilt installed.
>
>
> r319324 implements this.  Please let me know if this works on Windows.
>
> Thanks,
> Adam
>
>
>
>
> It’s the binutils demangler, I’ll fix it later.  Reverted in r319262.
> Sorry
> about the breakage.
>
>
> On Mon, Nov 27, 2017 at 11:01 AM Adam Nemet via Phabricator via
> llvm-commits
> <llvm-commits at lists.llvm.org> wrote:
>
>
> This revision was automatically updated to reflect the committed changes.
> Closed by commit rL319073: Add opt-viewer testing (authored by anemet).
>
> Repository:
> rL LLVM
>
> https://reviews.llvm.org/D40202
>
> Files:
> llvm/trunk/cmake/config-ix.cmake
> llvm/trunk/test/lit.cfg.py
> llvm/trunk/test/lit.site.cfg.py.in
> llvm/trunk/test/tools/opt-viewer/Inputs/basic/or.c
> llvm/trunk/test/tools/opt-viewer/Inputs/basic/or.h
> llvm/trunk/test/tools/opt-viewer/Inputs/basic/or.yaml
> llvm/trunk/test/tools/opt-viewer/Outputs/basic/basic_or.c.html
> llvm/trunk/test/tools/opt-viewer/Outputs/basic/basic_or.h.html
> llvm/trunk/test/tools/opt-viewer/Outputs/basic/index.html
> llvm/trunk/test/tools/opt-viewer/Outputs/basic/style.css
> llvm/trunk/test/tools/opt-viewer/basic.test
> llvm/trunk/test/tools/opt-viewer/lit.local.cfg
>
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> --
> Davide
>
> "There are no solved problems; there are only problems that are more
> or less solved" -- Henri Poincare
>
>
>
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