[PATCH] D28362: [ThinLTO] Optionally ignore empty index file

[Mehdi AMINI via Phabricator via cfe-commits]

mehdi_amini added a comment.

> In order to simplify distributed build system integration, where actions

may be scheduled before the Thin Link which determines the list of
objects selected by the linker. The gold plugin currently will emit
0-sized index files for objects not selected by the link, to enable
checking for expected output files by the build system. If the build
system then schedules a backend action for these bitcode files, we want
to be able to fall back to normal compilation instead of failing.

Just thought about it: why not emit an empty *index* instead of an empty file?


https://reviews.llvm.org/D28362