Commit graph

10 commits

Author SHA1 Message Date
David Given cfe5312fcc Predicates can now take numeric arguments. The PowerPC predicates have been
turned into generic ones (as they'll be useful everywhere). Node arguments for
predicates require the '%' prefix for consistency. Hex numbers are permitted.
2016-10-09 12:32:36 +02:00
David Given 2198db69b1 Instruction predicates work now. 2016-10-08 11:35:33 +02:00
David Given 7a6fc7a72b Made sure that all files end in vim magic. 2016-10-05 21:07:29 +02:00
David Given 68f98cbad7 Instruction selection now happens on a shadow tree, rather than on the IR tree
itself. Currently it's semantically the same but the implementation is cleaner.
2016-10-03 20:52:36 +02:00
David Given a3cfe6047f More rigorous dealing of IR groups; no need for is_generated and is_root any
more (but now passes are required to set IR roots properly when changing
instructions).
2016-10-01 22:58:29 +02:00
David Given 91e277e046 Predicates work; we now have prefers and requires clauses. Predicates must be
functions. Not convinced that semantic types are actually working --- there are
still problems with earlier statements leaving things in the wrong registers.
2016-10-01 13:56:52 +02:00
David Given 0d246c0d73 Much better handling of fragments (no run-time code needed to distinguish them
from registers) and better handling of individual hops within a paragraph ---
no more ghastly hacks to try and distinguish the input from the output.
2016-09-29 22:06:04 +02:00
David Given 39aa672422 Sort of keep track of registers and register classes. Start walking the
generated instruction tree --- holy cow, they look like instructions!
2016-09-25 22:17:14 +02:00
David Given 629e0ddfc6 Some instruction selection is now happening. 2016-09-24 22:46:08 +02:00
David Given 1516657907 Crudely bolt on mcgg to mcg itself. 2016-09-24 17:20:40 +02:00