6 commits

Author	SHA1	Message	Date
Quentin Carbonneaux	d8d17705c4	clean the commutativity + fix bug in emit ... The commutativity information only makes sense for arithmetic expressions. To account for that, I introduced a new tri-valued boolean type B3. Memory operations, for example, will receive an undefined commutativity trit. The code emitter was buggy when rega emitted instructions like 'rax = add 1, rax', this is now fixed using the commutativity information (we rewrite it in 'rax = add rax, 1').	2015-09-15 23:01:29 -04:00
Quentin Carbonneaux	33b0d919e8	add support for in-block reg. contraints	2015-09-15 23:01:29 -04:00
Quentin Carbonneaux	854ecd4009	add crippled dce to the allocator	2015-09-15 23:01:29 -04:00
Quentin Carbonneaux	8899449c39	complete a crude register allocator	2015-09-15 23:01:29 -04:00
Quentin Carbonneaux	ee784dbfcd	start work on parallel moves	2015-09-15 23:01:29 -04:00
Quentin Carbonneaux	33fe5637c5	initiate work on reg allocation	2015-09-15 23:01:29 -04:00