[Exegesis][RISCV] Add RISCV support for llvm-exegesis (#120419)
This patch also makes following amendments to core exegesis:
* Added distinction between regular registers aliasing check and
registers used as memory address in instruction.
* Added scratch memory space pointer register.
* General exegesis options were amended:
* mattr - new option to pass a list of enabled target features
Llvm-exegesis RISCV port is a result of team effort. Below everyone
involved listed.
Co-authored-by: Konstantin Vladimirov
<konstantin.vladimirov@syntacore.com>
Co-authored-by: Dmitrii Petrov <dmitrii.petrov@syntacore.com>
Co-authored-by: Dmitry Bushev <dmitry.bushev@syntacore.com>
Co-authored-by: Mark Goncharov <mark.goncharov@syntacore.com>
Co-authored-by: Anastasiya Chernikova
<anastasiya.chernikova@syntacore.com>
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Co-authored-by: Anastasiya Chernikova <anastasiya.chernikova@syntacore.com>