David Given
51bd3ee4dd
Fix bug where some phis weren't being inserted when a given variable definition
...
needed more than one phi (due to the dominance frontier containing more than
one basic block).
2016-10-27 21:40:25 +02:00
David Given
abd0cedd61
Massive change to how IR types are handled; we use the type code for matching
...
rather than the size. Much cleaner and simpler.
2016-10-23 21:54:14 +02:00
David Given
a8ee82d197
Stop passing proc around, and use a global instead --- much cleaner.
2016-10-15 23:19:44 +02:00
David Given
d75cc0a663
Basic register allocation works!
2016-10-08 23:32:54 +02:00
David Given
4e49830e09
Overhaul of everything phi related; critical edge splitting now happens before
...
anything SSA happens; liveness calculations now look like they might be
working.
2016-10-08 00:21:23 +02:00
David Given
ee93389c5f
Refactor the cfg and dominance stuff to make it a lot nicer.
2016-10-06 21:34:21 +02:00
David Given
21034c0d65
No, dammit, for register allocation I need to walk the blocks in *dominance*
...
order. Since the dominance tree has changed when I fiddled with the graph, I
need to recompute it, so factor it out of the SSA pass. Code is uglier than I'd
like but at least the RET statement goes last in the generated code now.
2016-10-05 23:52:54 +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
c079e97492
Perform SSA conversion of locals. Much, *much* better code now, at least
...
inasmuch as it looks better before register allocation. Basic blocks now know
their own successors and predecessors (after a certain point in the IR
processing).
2016-10-02 17:50:34 +02:00
