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Code Issues Packages Projects Releases 67 Wiki Activity
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eb83c9e7f225aa52fbe3f080eba544fa5d27ec8a
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957 Commits
Author SHA1 Message Date
Alyssa Rosenzweig eb83c9e7f2 Core: use safe CondJump for self-modifying code 
this ensures we put the StoreNZCV in the right block, which will fix validation
fails later in the series.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-08 13:48:29 -04:00
Alyssa Rosenzweig 95589f6172 OpcodeDispatcher: rm deferred variable shift flag calcs 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-05 20:34:05 -04:00
Alyssa Rosenzweig 098859caf7 OpcodeDispatcher: use _ShiftFlags for ASHR 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-05 20:34:05 -04:00
Alyssa Rosenzweig c632543451 OpcodeDispatcher: use _ShiftFlags for SHRD 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-05 20:34:05 -04:00
Alyssa Rosenzweig 801cf72f95 OpcodeDispatcher: use _ShiftFlags for SHLD 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-05 20:34:05 -04:00
Alyssa Rosenzweig 650cd2c46e OpcodeDispatcher: use _ShiftFlags for SHR 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-05 20:34:05 -04:00
Alyssa Rosenzweig 5b48ce2228 OpcodeDispatcher: use _ShiftFlags for SHL 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-05 20:34:05 -04:00
Alyssa Rosenzweig 2173c26fd8 OpcodeDispatcher: add HandleShift helper 
all the variable shift impls need to do this dance, make it common.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-05 20:34:05 -04:00
Alyssa Rosenzweig 982391ba9d IR: add ShiftFlags op 
Generates flags for a variable shift as a dedicated IR op. This lets us optimize
around it (without generating control flow, relying on deferred flag infra,
etc). And it neatly solves our RA problem for shifts.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-05 20:34:05 -04:00
Alyssa Rosenzweig 3661da1bc6 OpcodeDispatcher: calculate deferred flags before RMW on NZCV 
otherwise we might have the wrong input NZCV.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-05 20:34:05 -04:00
Alyssa Rosenzweig 859df5e0b2 OpcodeDispatcher: optimize shl flag 
This is something the new shift flag code will do. Backporting the opt since
that's stalled and this reduces the diff.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-05 19:38:44 -04:00
Alyssa Rosenzweig a05cc06ab4 OpcodeDispatcher: unify imm/1-bit ASHR 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-04 07:42:15 -04:00
Alyssa Rosenzweig 031e756a78 OpcodeDispatcher: unify imm/1-bit SHR 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-04 07:42:15 -04:00
Alyssa Rosenzweig 2a9f1ce8cb OpcodeDispatcher: unify imm/1-bit SHL 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-04 07:42:15 -04:00
Alyssa Rosenzweig 8c53a9f051 OpcodeDispatcher: use LoadConstantShift for rotates 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-04 07:42:15 -04:00
Alyssa Rosenzweig cf26ec7898 OpcodeDispatcher: use LoadConstantShift for SHRD 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-04 07:42:15 -04:00
Alyssa Rosenzweig 582c3dae6e OpcodeDispatcher: use LoadConstantShift for SHLD 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-04 07:42:15 -04:00
Alyssa Rosenzweig 2abac03ab0 OpcodeDispatcher: add LoadConstantShift helper 
shows up a bunch

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-04 07:42:15 -04:00
Alyssa Rosenzweig 8cc684fa12 OpcodeDispatcher: drop misinformed comment 
tbnz only tests a single bit, not a mask.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-04 07:42:15 -04:00
Alyssa Rosenzweig d92de1d947 OpcodeDispatcher: drop result masking for shifts 
flag calcs are fine with upper garbage.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-04 07:42:15 -04:00
Alyssa Rosenzweig 37f2b417e4 Merge pull request #3546 from alyssarosenzweig/flag/cleanup 
Minor cleanups around flags
 2024-04-02 11:29:19 -04:00
Alyssa Rosenzweig bd0b5eceb8 Merge pull request #3545 from alyssarosenzweig/opt/pf-scalar 
Use scalar integer code to calculate PF
 2024-04-02 11:28:53 -04:00
Alyssa Rosenzweig b632f7215c Merge pull request #3544 from alyssarosenzweig/ra/zero-multiple 
OpcodeDispatcher: drop ZeroMultipleFlags
 2024-04-02 11:27:45 -04:00
Ryan Houdek e8abc88702 Merge pull request #3542 from alyssarosenzweig/ra/rep 
Eliminate xblock liveness with rep cmp/lod/scas
 2024-04-02 04:24:24 -07:00
Ryan Houdek 29c6281e11 Merge pull request #3539 from alyssarosenzweig/ra/rol-ror2 
rewrite ROL/ROR
 2024-04-02 00:17:08 -07:00
Alyssa Rosenzweig 067a5444dc OpcodeDispatcher: use HandleNZ00Write 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-01 16:42:38 -04:00
Alyssa Rosenzweig c7f159972d OpcodeDispatcher: rm pointless NZCV loads 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-01 16:42:38 -04:00
Alyssa Rosenzweig a70d0a5dd4 OpcodeDispatcher: rm unnecessary NZCV dirtying 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-01 16:42:38 -04:00
Ryan Houdek cd9ffd2045 Merge pull request #3536 from alyssarosenzweig/ra/rcl-rcr 
OpcodeDispatcher: eliminate xblock liveness for rcl/rcr
 2024-04-01 11:44:37 -07:00
Alyssa Rosenzweig eb4bb5875e OpcodeDispatcher: absorb invert into PF calculation 
with xorn

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-01 14:12:33 -04:00
Alyssa Rosenzweig 3b052e826f OpcodeDispatcher: calculate PF with integer ops 
based on clang's __builtin_parity

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-01 14:12:32 -04:00
Alyssa Rosenzweig 65ec191dc1 IR: add XornShift 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-01 14:12:32 -04:00
Alyssa Rosenzweig b1ddd8cd3b Merge pull request #3541 from alyssarosenzweig/opt/clc 
optimize clc
 2024-04-01 13:51:10 -04:00
Alyssa Rosenzweig 7852909cc4 OpcodeDispatcher: simplify IsNZCV 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-01 13:50:00 -04:00
Alyssa Rosenzweig f8b68d8b5a OpcodeDispatcher: drop ZeroMultipleFlags 
lot of complexity for only a single interesting case. we can massively simplify.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-04-01 13:48:11 -04:00
Ryan Houdek e2a095372e Merge pull request #3534 from Sonicadvance1/move_ir_defines 
FEXCore: Move nearly all IR definitions to internal
 2024-04-01 10:00:20 -07:00
Ryan Houdek 5c29c9d464 Merge pull request #3527 from Sonicadvance1/move_type_defines 
Moves FHU TypeDefines to FEXCore includes
 2024-04-01 08:57:22 -07:00
Ryan Houdek 3bed305660 Merge pull request #3526 from Sonicadvance1/move_codeloader 
FEXCore: Moves CodeLoader to frontend
 2024-04-01 07:52:02 -07:00
Ryan Houdek f6639c3594 Merge pull request #3525 from Sonicadvance1/move_cpubackend 
FEXCore: Moves CPUBackend definition internal
 2024-04-01 06:47:34 -07:00
Alyssa Rosenzweig 7b1bb159fa OpcodeDispatcher: use ForeachDirection for scas 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-31 20:31:38 -04:00
Alyssa Rosenzweig 5c7f2934de OpcodeDispatcher: use ForeachDirection for lods 
eliminates xblock live

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-31 20:29:29 -04:00
Alyssa Rosenzweig 5d79d4eb50 OpcodeDispatcher: use ForeachDirection for CMPS 
eliminates xblock liveness

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-31 20:29:16 -04:00
Alyssa Rosenzweig 3f66173bc7 OpcodeDispatcher: add ForeachDirection helper 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-31 20:28:56 -04:00
Alyssa Rosenzweig 4452f0acba ConstProp: optimize rmif with 0 for clc 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-31 20:01:44 -04:00
Alyssa Rosenzweig 1a1545da0f OpcodeDispatcher: rework rep cmp 
1. pull flag calculation out of the loop body for perf
2. fully rotate the inner loop to save an instruction per iteration
3. hoist the rcx=0 jump to avoid computing df when rcx=0

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-31 19:54:00 -04:00
Alyssa Rosenzweig a70ea30c02 IR: add CondSubNZCV (ccmp) instruction 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-31 17:50:57 -04:00
Alyssa Rosenzweig 15b86e4c5a OpcodeDispatcher: rewrite ROL/ROR 
single unified implementation for ROL & ROR (instead of 4 cases). no more
deferred flags because it's easy to shoot ourselves in the foot with deferred
flags w.r.t the new RA design, and rotates are rare enough with very efficient
flag calculations such that the extra JIT overhead should be minimal to DCE the
resulting calculations later.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-31 14:47:19 -04:00
Alyssa Rosenzweig 6f5e4fd34b OpcodeDispatcher: add non-flag calc version of ShiftVariable 
more correct for rcl, etc

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-30 14:30:36 -04:00
Alyssa Rosenzweig 706065b0e2 OpcodeDispatcher: accelerate cmpxchg with flagm 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-30 14:12:59 -04:00
Alyssa Rosenzweig 9fd32f07cb JIT: preserve nzcv for the slow atomic path 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-30 14:12:59 -04:00