[RISCV] Guard CFI emission code with MF.needsFrameMoves() (#136060)HEADmain

Currently, AsmPrinter skips CFI instructions created by a backend if
they are not needed. I'd like to change that so that it always
prints/encodes CFI instructions if a backend created them.

This change should slightly (perhaps negligibly) improve compile time as
post-PEI passes no longer need to skip over these instructions in
no-exceptions no-debug builds, and will allow to simplify convoluted
logic in AsmPrinter once other targets stop emitting CFI instructions
when they are not needed (that's my final goal).

The changes in a test seem to be caused by slightly different post-RA
scheduling in the absence of CFI instructions.

0 files changed, 0 insertions, 0 deletions