Noticed while testing for an out of tree target. There are probably more tests that should be so marked.
I'm not sure who owns these tests so I've added a few names I recognise from the recent history.
With advice from probinson, ruiu, rafael and dramatically improved by davidb. Thank you all!
Differential Revision: https://reviews.llvm.org/D34685
llvm-svn: 308335
The MSVC linker doesn't like archive files containing non-native object
files.
When we are doing an LTO build, we may create archive files containing
both LLVM bitcode files and native object files. For example, if a
project contains assembly files and C++ files, we create native object
files for the assembly files and LLVM bitcode files for the C++ files.
With the /msvclto option, LLD passes archive files to the MSVC linker.
Previously, we didn't pass archive files if they contain at least one
bitcode files. That wasn't correct because the native object files that
weren't passed to the MSVC linker may be needed to complete linking.
In this patch, we create new temporary archive files to strip bitcode
files.
Differential Revision: https://reviews.llvm.org/D31053
llvm-svn: 297997
Some archive files created during chromium build contains both BC
and native files. If that's the case, we want to pass the archive
file to link.exe. Otherwise, the MSVC linker would complain that
there's an unresolved symbol in a given set of files.
I cannot explain why link.exe doesn't complain about the presence
of bitcode files in this case, but it seems link.exe doesn't touch BC.
llvm-svn: 297229
If /msvclto is specified, we compile bitcode files and pass it to the
MSVC linker, stripping all bitcode files. We haven't stripped archive
files, because I was thinking that the MSVC linker wouldn't touch files
in archive files. When we pass an object file to link.exe, all symbols
have been resolved already, so link.exe shoulnd't need any of the files
in archives.
It turns out that even though link.exe doesn't need to do that, it
seems to try to read each file in all archives. And if there's a non-
COFF file in an archive, it exists with an error message. So we need
to remove archives from the command line too.
llvm-svn: 297191
Jon Chesterfield