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386b140265
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51 Commits

Author SHA1 Message Date
Dmitry Stogov
386b140265 Refactor Linear Scan Register Allocator to use linked lists instead of bitsets 
This fixes allocation of several temporary variables for single instruction
 2022-05-12 17:43:08 +03:00
Dmitry Stogov
1028d7d330 Fix reading behind array range 2022-05-12 11:04:20 +03:00
Dmitry Stogov
c2d224148b Use prefered register if possible 2022-05-11 21:10:35 +03:00
Dmitry Stogov
69b5a852e5 Make DESSA API use "ir_ref" instead of "virtual register number" 
(0 - is still a temporary register)
 2022-05-06 16:19:57 +03:00
Dmitry Stogov
9f1ca6b82c Add IR_LIVE_INTERVAL_TEMP and IR_LIVE_INTERVAL_VAR flags 2022-05-06 09:23:14 +03:00
Dmitry Stogov
dd5a3a3b72 Add flexible support for temporary registers. 
Get rid of hardcoded temporary registers (incomplete)
 2022-05-05 22:35:39 +03:00
Dmitry Stogov
1130c256ae Find optimal split position 2022-05-04 11:59:35 +03:00
Dmitry Stogov
4f294109e8 Result of PARAM may be stored into a spill slot without register 2022-05-04 09:50:23 +03:00
Dmitry Stogov
1b156c49e8 Use "hint" regiser only if it's not disabled by "--debug-regset" 2022-05-04 09:08:23 +03:00
Dmitry Stogov
27540fd43a Use optimal split position (incompete) 2022-04-29 19:24:15 +03:00
Dmitry Stogov
b3c61507a4 Fixed possible incorrect splitting 2022-04-29 18:50:57 +03:00
Dmitry Stogov
102b367d64 cleanup 2022-04-29 15:24:41 +03:00
Dmitry Stogov
f5f9614854 cleanup 2022-04-29 14:19:53 +03:00
Dmitry Stogov
23945c4bdc Better debug logging 2022-04-29 12:14:26 +03:00
Dmitry Stogov
2e3ba321f8 Swap UsePos flags and prefer to reload registers that SHOULD be in a CPU register 2022-04-29 03:39:32 +03:00
Dmitry Stogov
3e6f84eef4 Add "must be in reg" constraint 2022-04-28 14:48:43 +03:00
Dmitry Stogov
ea46798aeb Fix live interval splitting and second chance binpacking (it seems to work, but may be icomplete) 2022-04-28 13:09:55 +03:00
Dmitry Stogov
acffada3b1 Fix interval processing order 2022-04-28 10:27:01 +03:00
Dmitry Stogov
fffc0ad2ef Delay spill slot allocation 2022-04-28 10:16:02 +03:00
Dmitry Stogov
53532fcb39 Select better register 2022-04-28 01:25:10 +03:00
Dmitry Stogov
5b7a7decd0 Fix splitting of use positions 2022-04-28 00:12:01 +03:00
Dmitry Stogov
9287830a77 Process remaining splits after all unhandled intervals 2022-04-27 23:31:20 +03:00
Dmitry Stogov
59b63cbb91 Sort oputput UsePos after inputs 2022-04-27 21:24:51 +03:00
Dmitry Stogov
7f8f186abd Fix the way as linera-scan walks through splitted intervals 2022-04-27 18:18:53 +03:00
Dmitry Stogov
6e77f886cb LSRA tweaks 2022-04-27 15:02:51 +03:00
Dmitry Stogov
2b9e793b4e Add debug options 2022-04-27 14:47:52 +03:00
Dmitry Stogov
c89246f35a Replace asserts with checks 2022-04-27 01:34:29 +03:00
Dmitry Stogov
329e1f5a44 Fix splitting (incomplete) 2022-04-27 01:04:03 +03:00
Dmitry Stogov
beaa2744e1 Keep fixed live intervals after coalescing 2022-04-26 21:16:22 +03:00
Dmitry Stogov
1370629b47 Fixed interval sorting 2022-04-26 11:51:48 +03:00
Dmitry Stogov
6548818887 Improve interval splitting (incomplete) 2022-04-26 00:54:07 +03:00
Dmitry Stogov
648d7084bc Fix intrval reconstruction after operand swapping 2022-04-25 21:00:01 +03:00
Dmitry Stogov
034ef95e07 Allow memory update instructions (without loading into register) 2022-04-22 01:40:10 +03:00
Dmitry Stogov
84b2bac02c Add more tests 2022-04-22 00:11:34 +03:00
Dmitry Stogov
c36efda8a5 Improve register allocation for commutative instructions 
- swap operands f this make sense
- fix coalescing bug
 2022-04-21 16:38:18 +03:00
Dmitry Stogov
20c9f2e92a Add comment 2022-04-20 19:30:28 +03:00
Dmitry Stogov
ffdb53821d Refactor constraint model 
Each instruction consist from 4 sub positions LOAD, USE, DEF, SAVE.
Hardware constraints are modeled conectiong live intervals and fixed
intervals to different sub-positions.
 2022-04-20 18:53:15 +03:00
Dmitry Stogov
6b60d8fba9 Code generation for VLOAD and VSTORE 2022-04-19 22:35:29 +03:00
Dmitry Stogov
879c4e75f5 Update vreg hints when compacting 2022-04-15 16:14:42 +03:00
Dmitry Stogov
0922b7cd7f Add vreg hints 2022-04-15 16:02:23 +03:00
Dmitry Stogov
9f24f34aca Cleanup 2022-04-15 14:46:03 +03:00
Dmitry Stogov
3cb707522f Allocate scratch (caller-saved) registers first 2022-04-15 14:22:35 +03:00
Dmitry Stogov
2c2f2dabab Better use placement 2022-04-15 00:35:02 +03:00
Dmitry Stogov
3f6a6aa3ea Better CPU constraint model and initial support for live interval splitting (incomplete) 2022-04-14 22:40:13 +03:00
Dmitry Stogov
58c80c48e0 Create fixed interval for a temporary register used for DESSA moves 2022-04-12 16:09:53 +03:00
Dmitry Stogov
14f4fdf29d Added few more basic x86_64 tests 2022-04-08 00:29:49 +03:00
Dmitry Stogov
e2601c8e06 Improve JIT support for IR_CALL 2022-04-07 23:41:38 +03:00
Dmitry Stogov
02863d7dc9 Initial JIT support for IR_CALL 2022-04-07 18:08:06 +03:00
Dmitry Stogov
23bd7fb272 Add hints and fixed intrvals for parameters 2022-04-07 14:18:59 +03:00
Dmitry Stogov
5b34386f62 Register Allocator suppor for fixed registers, use positions and register hints (incomplete). 2022-04-07 11:11:57 +03:00