Commit Graph

15 Commits (c57c26b3be74bac3676c23c86d2da58186559db4)

Author SHA1 Message Date
Slava Pestov e27adb2830 compiler: re-architect low-level optimizer to allow more than one output value per instruction 2010-07-13 07:40:14 -04:00
Slava Pestov 8bd2273e44 compiler.cfg: don't generate useless methods in instruction meta-programming. reduces bootstrap time 2009-11-02 20:11:29 -06:00
Slava Pestov 85a2bfab6c compiler: eliminate boilerplate by centralizing info in declarative INSN: syntax 2009-09-02 06:22:37 -05:00
Slava Pestov 9595be4bf9 %box-displaced-alien: fix clobberage found by Doug 2009-08-30 05:11:08 -05:00
Slava Pestov 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
Slava Pestov 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
Slava Pestov 725280d424 Split off the notion of a register representation from a register class 2009-08-07 17:44:50 -05:00
Slava Pestov 74766d1ccd compiler.cfg.linear-scan.assignment: modifies instructions in place instead of storing a registers assoc for further compile-time performance improvement 2009-07-29 06:36:14 -05:00
Slava Pestov 7d3b6892d5 compiler.cfg.ssa.construction: use the optimization from the pruned-SSA paper to minimize stack pushing and popping 2009-07-28 11:52:42 -05:00
Slava Pestov 7068de6cd3 compiler.cfg.copy-prop: Global copy propagation 2009-07-24 05:30:46 -05:00
Slava Pestov 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
Slava Pestov e7e5bee9a2 compiler.cfg.ssa: Cytron's SSA construction algorithm 2009-07-21 17:49:30 -05:00
Slava Pestov e76dce8aff Overflowing fixnum intrinsics now expand into several CFG nodes. This speeds up the common case since only the uncommon case is now a stack syncpoint 2009-07-16 18:29:40 -05:00
Slava Pestov d7aeae45be compiler.cfg.branch-splitting: split blocks with successors 2009-07-13 10:44:08 -05:00
Slava Pestov 789d82745c compiler.cfg.value-numbering: factor out value renaming into a separate compiler.cfg.renaming vocabulary 2009-07-09 23:14:26 -05:00