x64: port load to ISLE (#3993)

This change moves the majority of the lowerings for CLIF's `load`
instruction over to ISLE. To do so, it also migrates the previous
mechanism for creating an `Amode` (`lower_to_amode`) to several ISLE
rules (see `to_amode`).
This commit is contained in:
Andrew Brown
2022-04-07 18:31:22 -07:00
committed by GitHub
parent 76f7cde673
commit f62199da8c
12 changed files with 1726 additions and 806 deletions

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