xenia/TODO.md

Instructions

stbu
lwzu

addx
addix
addic
addzex
subfx
subfex
subficx

mulli
mullwx
divwux

andix
orx

rlwinmx
rldiclx
extsbx
slwx
srawix

# can be no-op
dcbt
dcbtst

twi

Codegen

Indirect branches (ctr/lr)

emit_control.cc XeEmitBranchTo Need to take the value in LR/CTR and do something with it.

Fast path:

• Every time LR would be stashed, add the value of LR (some NIA) to a lookup table.
• When doing an indirect branch first lookup the address in the table.
• If not found, slow path, else jump.

Slow path:

• Call out and do an SDB lookup.
• If found, return, add to lookup table, and jump.
• If not found, need new function codegen!

Caching of register values in basic blocks

Right now the SSA values seem to leak from the blocks somehow. All caching is disabled.