[llvm] [RISCV] Make X5 allocatable for JALR on CPUs without RAS (PR #78417)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> > Ping for comments. :-)
> 
> If this didn't improve code size on llvm-test-suite, I think it just adds an extra configuration option for no benefit.
> 

Result: https://github.com/dtcxzyw/llvm-ci/pull/1006#issuecomment-1926433112



https://github.com/llvm/llvm-project/pull/78417