Commit Graph

3 Commits

Author SHA1 Message Date
Jeroen Dobbelaere 90a6bb30fa [remangleIntrinsicFunction] Detect and resolve name clash
It is possible that the remangled name for an intrinsic already exists with a different (and wrong) prototype within the module.
As the bitcode reader keeps both versions of all remangled intrinsics around for a longer time, this can result in a
crash, as can be seen in https://bugs.llvm.org/show_bug.cgi?id=50923

This patch makes 'remangleIntrinsicFunction' aware of this situation. When it is detected, it moves the version with the wrong prototype to a different name. That version will be removed anyway once the module is completely loaded.

With thanks to @asbirlea for reporting this issue when trying out an lto build with the full restrict patches, and @efriedma for suggesting a sane resolution mechanism.

Reviewed By: apilipenko

Differential Revision: https://reviews.llvm.org/D105118
2021-07-13 11:21:12 +02:00
Sergey Dmitriev 761aca1e2e [llvm-link] fix linker behavior when linking archives with --only-needed option
This patch fixes linker behavior when archive is linked with other inputs
as a library (i.e. when --only-needed option is specified). In this case library
is expected to be normally linked first into a separate module and only after
that linker should import required symbols from the linked library module.

Reviewed By: tra

Differential Revision: https://reviews.llvm.org/D92535
2021-01-05 10:02:51 -08:00
Jan Sjodin 66b409582a llvm-link: Add support for archive files as inputs
This patch adds support for archive files as inputs to llvm-link. One
of the use-cases is for OpenMP, where device specific libraries need
to be extracted from libraries containing bundled object files. The
clang-offload-bundler will support extracting these archives, which
will be passed into llvm-link, see https://reviews.llvm.org/D80816.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D81109
2020-07-14 15:30:59 -04:00