Currently the generated pass declarations have to be enabled per-pass
using multiple `GEN_PASS_DECL_{PASSNAME}` defines. This adds
`GEN_PASS_DECL`, which enables the declarations for all passes in the
group with a single macro. This is convenient for cases where a single
header is used for all passes in the group.
Reviewed By: mehdi_amini, mscuttari
Differential Revision: https://reviews.llvm.org/D134766
Being the generated code macro-guarded, the autogenerated `.cpp.inc` file has been merged into the `.h.inc` to reduce the build steps.
Reviewed By: mehdi_amini, rriddle
Differential Revision: https://reviews.llvm.org/D132884
The patch addresses the linkage of the new autogenerated pass constructors, which, being declared as friend functions, resulted in having an inline nature and thus their implementations not being exported.
Reviewd By: mehdi_amini, rriddle
Differential Revision: https://reviews.llvm.org/D132572
The pass tablegen backend has been reworked to remove the monolithic nature of the autogenerated declarations.
The pass public header can be generated with the -gen-pass-decls option. It contains options structs and registrations: the inclusion of options structs can be controlled individually for each pass by defining the GEN_PASS_DECL_PASSNAME macro; the declaration of the registrations have been kept together and can still be included by defining the GEN_PASS_REGISTRATION macro.
The private code used for the pass implementation (i.e. the pass base class and the constructors definitions, if missing from tablegen) can be generated with the -gen-pass-defs option. Similarly to the declarations file, the definitions of each pass can be enabled by defining the GEN_PASS_DEF_PASNAME variable.
While doing so, the pass base class has been enriched to also accept a the aformentioned struct of options and copy them to the actual pass options, thus allowing each pass to also be configurable within C++ and not only through command line.
Reviewed By: rriddle, mehdi_amini, Mogball, jpienaar
Differential Revision: https://reviews.llvm.org/D131839
Redirect the copy ctor to the actual class instead of
overwriting it with `TypeID` based ctor.
This allows the final Pass classes to have extra fields and logic for their copy.
Reviewed By: lattner
Differential Revision: https://reviews.llvm.org/D104302
