85a2bfab6c
compiler: eliminate boilerplate by centralizing info in declarative INSN: syntax
2009-09-02 06:22:37 -05:00
f662e6403a
compiler: new inline intrinsic for <displaced-alien> where the inputs have known types; value numbering now eliminates unnecessary allocation of displaced aliens if the result is immediately unboxed again
2009-08-27 00:06:19 -05:00
d0c393aa60
compiler.cfg: new system to track when results of analyses need to be recomputed (reverse post order, linear order, predecessors, dominance, loops). Passes can now call needs-predecessors, needs-dominance, needs-loops at the beginning, and cfg-changed, predecessors-changd at the end. Linearization order now takes loop nesting into account, and linear scan now uses linearization order instead of RPO.
2009-08-08 20:02:56 -05:00
4b7ba38aab
compiler.cfg: virtual registers are integers now, and representations are stored off to the side. Fix bug in representation selection that would manifest if a value was used as a float and a fixnum in different branches; cannot globally unbox float in this case
2009-08-08 04:02:18 -05:00
725280d424
Split off the notion of a register representation from a register class
2009-08-07 17:44:50 -05:00
13c3fdcb5c
compiler.cfg: Fixing test failures
2009-07-24 06:08:07 -05:00
e0f6d89ff1
compiler.cfg.value-numbering: insert ##copy instructions for instructions whose expressions simplify. While subsequent usages are replaced with the instruction computing the simplified vreg locally, global usages may exist of the original instruction. In this case, the ##copy is not dead
2009-07-24 05:30:30 -05:00
21a012e3d7
compiler.cfg: Major restructuring -- do not compute liveness before local optimization, and instead change local optimizations to be more permissive of undefined values. Now, liveness is only computed once, after phi elimination and before register allocation. This means liveness analysis does not need to take phi nodes into account and can now use the new compiler.cfg.dataflow-analysis framework
2009-07-22 03:08:28 -05:00
ebcd0dc252
compiler.cfg: Fix regressions from recent changes
2009-07-14 20:43:06 -05:00
11731f8d48
compiler.cfg.value-numbering: merge in compiler.cfg.branch-folding
2009-07-14 20:05:01 -05:00
2ace87370e
compiler.cfg.value-numbering: more optimizations
2009-07-14 16:05:25 -05:00
789d82745c
compiler.cfg.value-numbering: factor out value renaming into a separate compiler.cfg.renaming vocabulary
2009-07-09 23:14:26 -05:00
692b479302
Split off local-optimization combinator into compiler.cfg.local, factor out CFG -> MR into compiler.cfg.mr, split off GC check insertion into a new compiler.cfg.gc-checks pass
2009-05-31 12:20:46 -05:00
e04df76f60
Various codegen improvements:
...
- new-insn word to construct instructions
- cache RPO in the CFG
- re-organize low-level optimizer so that MR is built after register allocation
- register allocation now stores instruction numbers in the instructions themselves
- split defs-vregs into defs-vregs and temp-vregs
2009-05-29 13:11:34 -05:00
117cb78d6b
Fixing local optimizations
2009-05-27 18:58:41 -05:00
ce25e0ad8d
New local-optimization combinator removes some boilerplate
2009-05-26 19:56:56 -05:00
1db81da264
Refactoring low-level optimizer to support stack analysis pass
2009-05-26 19:31:19 -05:00
52967c5bf1
Improved value numbering
2008-10-23 02:49:26 -05:00
d723b69990
Value numbering
2008-10-22 21:59:07 -05:00
f092622fac
CFG IR is now pure SSA
2008-10-20 01:56:28 -05:00
c0d89b061e
Fixing register allocator prspilling
2008-10-19 01:10:21 -05:00
Slava Pestov
Slava Pestov