63e55ac813
compiler.cfg.liveness: Break the infinite loop--add the base-pointer as f to start with, and replace it with the real one if there's not a circular chain. Fixes #22 again.
2013-01-01 14:47:54 -08:00
125e4befd3
compiler.cfg.liveness: Add parallel-copy method for lookup-base-pointer*. Adjust lookup-base-pointer* stack effect to take two parameters. Still retain stack overflows, but more correct now...
2013-01-01 14:16:51 -08:00
e90ce0865c
compiler.cfg.ssa.destruction.leaders: break off leader-map to resolve circular dependencies (oops)
2012-12-31 11:20:57 -08:00
dcb27c51e4
compiler.cfg.liveness: still kill defs by leaders, but keep original
...
vregs in the live-sets so accurate info (e.g., representations) can
still be looked up (issue #22 )
2012-12-31 11:05:05 -08:00
86a15ad47b
compiler.cfg.liveness: look up leaders (if possible) so liveness analysis doesn't break after leaving SSA (issue #22 )
2012-12-31 11:04:52 -08:00
013160df9a
change some "2drop 2drop" to "4drop".
2012-10-23 12:21:30 -07:00
378786599d
Cleanup lint warnings.
2011-10-14 11:47:24 -07:00
6b5fffc026
compiler: preliminary implementation of tracking derived pointers in GC maps
2010-09-27 20:12:44 -07:00
ec2f42fd40
compiler.cfg.liveness: merge in compiler.cfg.liveness.ssa and simplify the code, since we don't compute live sets before SSA construction anymore
2010-09-25 14:36:58 -07:00
b5fc39c198
compiler.cfg: Reading the return value of a float-returning function on x86-32 had a side effect of popping the x87 stack, so it was not correct for DCE to just eliminate this if the return value was not used. Fix this by adding a new dead-outputs slot to alien-call-insns and having DCE move dead returns there
2010-08-13 23:19:56 -07:00
8e46305288
compiler.cfg.save-contexts: don't insert ##save-context in front of ##phi
2010-07-19 09:27:10 -04:00
e27adb2830
compiler: re-architect low-level optimizer to allow more than one output value per instruction
2010-07-13 07:40:14 -04:00
a55c8ee671
FFI rewrite part 6: deconcatenatize
2010-07-02 15:44:12 -04:00
e86f434f26
Add GC maps to ##box, ##box-long-long, ##alien-invoke, ##alien-indirect and ##call-gc; remove ##gc-map instruction
2010-06-14 19:39:46 -04:00
df86d1341f
compiler.cfg: clean up ##phi literals in tests
2010-05-03 17:34:24 -04:00
43f269e4eb
Register allocation now uses SSA properties to coalesce values with different representations
2010-05-03 17:34:20 -04:00
95ff5ffe51
New GC checks work in progress
2010-05-03 17:34:16 -04:00
7074979745
Moving new-sets to sets
2010-02-26 16:01:01 -05:00
d35e1eb76c
Fixing write-barrier elimination; adding bb as a parameter to join-sets in dataflow analysis
2009-08-12 23:52:29 -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
a15b20a671
Revert "compiler.cfg.liveness.ssa: remove"
...
This reverts commit 6144fee101
2009-08-02 18:41:16 -05:00
634e1dd525
compiler.cfg.liveness.ssa: remove
2009-08-02 17:19:01 -05:00
01f51a96cd
compiler.cfg.utilities: add each-phi combinator to iterate over all ##phi instructions in a basic block
2009-08-02 06:16:58 -05:00
e1c7f7394a
compiler.cfg: clean up unit tests using some new utilities
2009-08-02 03:49:25 -05:00
76368cae9b
compiler.cfg.liveness.ssa: fix bad bug discovered by littledan
2009-08-01 18:54:24 -05:00
b133649edd
compiler.cfg.ssa.destruction: tweak in preparation for landing Dan's new SSA liveness analysis
2009-07-29 23:35:51 -05:00
d913d7331f
compiler.cfg: Minor optimization. Instructions can now only ever produce a single value; this eliminates 1array constructions and some iterations
2009-07-28 12:29:07 -05:00
1878b0dc32
compiler.cfg.liveness: fix liveness computation in case where instruction uses a register it defines
2009-07-28 06:45:02 -05:00
a32cbdd231
compiler.cfg.coalescing: more work done
2009-07-27 00:31:21 -05:00
89db2e745d
Move liveness back to compiler.cfg.liveness, fix a corner-case where it didn't work on some forms of non-SSA code
2009-07-22 06:07:28 -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
fd9a353fd6
Move conjoin-at from compiler.cfg.liveness to sets
2009-07-21 03:02:06 -05:00
6d46bf623c
compiler.cfg.liveness: update for new ##phi node representation
2009-07-02 17:28:02 -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
dbf18927b9
compiler.cfg.liveness: correct handling of phi nodes
2009-05-28 17:54:27 -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
Doug Coleman
Alex Vondrak
John Benediktsson
Slava Pestov
Slava Pestov
Daniel Ehrenberg
Slava Pestov