llvm-project/llvm/tools/lto
serge-sans-paille ac1d23ed7d Replace MCTargetOptionsCommandFlags.inc and CommandFlags.inc by runtime registration
MCTargetOptionsCommandFlags.inc and CommandFlags.inc are headers which contain
cl::opt with static storage.
These headers are meant to be incuded by tools to make it easier to parametrize
codegen/mc.

However, these headers are also included in at least two libraries: lldCommon
and handle-llvm. As a result, when creating DYLIB, clang-cpp holds a reference
to the options, and lldCommon holds another reference. Linking the two in a
single executable, as zig does[0], results in a double registration.

This patch explores an other approach: the .inc files are moved to regular
files, and the registration happens on-demand through static declaration of
options in the constructor of a static object.

[0] https://bugzilla.redhat.com/show_bug.cgi?id=1756977#c5

Differential Revision: https://reviews.llvm.org/D75579
2020-03-17 14:01:30 +01:00
..
CMakeLists.txt Replace MCTargetOptionsCommandFlags.inc and CommandFlags.inc by runtime registration 2020-03-17 14:01:30 +01:00
LTODisassembler.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
lto.cpp Replace MCTargetOptionsCommandFlags.inc and CommandFlags.inc by runtime registration 2020-03-17 14:01:30 +01:00
lto.exports [LTO][Legacy] Add new API to query Mach-O CPU (sub)type 2020-02-28 12:56:05 -08:00