hanchenye-llvm-project/llvm/tools/llvm-mca
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
..
Views
CMakeLists.txt Remove AllTargetsAsmPrinters 2020-01-17 19:04:06 -05:00
CodeRegion.cpp
CodeRegion.h Avoid including FileSystem.h from MemoryBuffer.h 2020-02-29 12:30:23 -08:00
CodeRegionGenerator.cpp [MC] De-capitalize another set of MCStreamer::Emit* functions 2020-02-14 19:26:52 -08:00
CodeRegionGenerator.h
LLVMBuild.txt
PipelinePrinter.cpp
PipelinePrinter.h
llvm-mca.cpp Replace MCTargetOptionsCommandFlags.inc and CommandFlags.inc by runtime registration 2020-03-17 14:01:30 +01:00