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5378ae2e7620f8a1d76e8d0dcb73b3622ec90e31
Commit Graph
804 Commits
Author SHA1 Message Date
Alyssa Rosenzweig 5378ae2e76 Merge pull request #3436 from alyssarosenzweig/ir/af-simplify 
Simplify CalculateAF
 2024-02-22 08:17:07 -04:00
Ryan Houdek d4be2dc636 Merge pull request #3434 from bylaws/arm64ec-pt3 
FEXCore: Expose AbsoluteLoopTopAddress to the frontend
 2024-02-21 14:31:04 -08:00
Alyssa Rosenzweig 2bcd285851 Merge pull request #3430 from Sonicadvance1/tsc_scale 
Implement small TSC scaling
 2024-02-21 13:16:27 -04:00
Alyssa Rosenzweig 8762bc1fa3 OpcodeDispatcher: simplify CalculateAF signature 
- Res is unused
- SrcSize doesn't matter since we ignore the high bits, might as well always use
  32-bit, it doesn't matter

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-21 12:48:15 -04:00
Billy Laws 5b4162b712 FEXCore: Expose AbsoluteLoopTopAddress to the frontend 
ARM64EC has a shared SRA mapping between ARM64 and X64 code, so there
needs to be a public way to enter the dispatcher without refilling SRA
from the in-memory context struct.
 2024-02-21 11:46:24 +00:00
Ryan Houdek b902b8edab Implement small TSC scaling 
Games engines are expecting >1Ghz cycle counters. Scale them to work
around the issue.

Resolves the excessive busy waiting in Unreal Engine 5 games.
 2024-02-20 12:05:44 -08:00
Alyssa Rosenzweig 0503c89ff6 OpcodeDispatcher: use NZCV update helpers 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-19 14:12:54 -04:00
Alyssa Rosenzweig 6dd410698a OpcodeDispatcher: add helpers for updating NZCV metadata 
to reduce error-prone copypaste

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-19 14:12:54 -04:00
Alyssa Rosenzweig 68232366e4 OpcodeDispatcher: don't mask add/sub sources 
not needed in the new approach

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-12 12:36:28 -04:00
Alyssa Rosenzweig d7ff1b78fb IR: handle 8/16-bit AddNZCV/SubNZCV 
we can do it more effectively than the current s/w lowering.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-12 12:36:09 -04:00
Ryan Houdek df3d6938ae Merge pull request #3410 from alyssarosenzweig/opt/nzcv-pass-2 
Add NZCV+PF/AF optimization pass
 2024-02-10 05:03:12 -08:00
Ryan Houdek ba41da7da0 Merge pull request #3414 from Sonicadvance1/fix_one_mutex_hang 
Fixes one mutex hang
 2024-02-09 05:54:40 -08:00
Ryan Houdek 2480bab409 Fixes one mutex hang 
When code invalidation is happening we currently have the issue that a
thread can acquire the code invalidation mutex in the middle of
invalidation. This is due to us acquiring and releasing the mutex
between each thread's code invalidation.

We need to hold the mutex for the entire duration for all thread's code
invalidation.
This fixes a rare hang on proton startup and resolves a consistent hang
on Proton application shutdown.

This now puts us on par with FEX-2312.1 with hanging.

This does not fix a relatively rare hang on fork (which also existed with FEX-2312.1).

This also does not fix the issue that the intersection of our mutexes
between frontend and backend are very convoluted. In part of the work
that is going to fix the rare fork mutex hang will change more of this.
 2024-02-08 18:18:00 -08:00
Alyssa Rosenzweig ad7202e7d7 OpcodeDispatcher: optimize test -1 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-08 14:10:13 -04:00
Alyssa Rosenzweig 175a57dd27 OpcodeDispatcher: emit AndWithFlags directly for primary alu 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-06 14:22:28 -04:00
Alyssa Rosenzweig e2ce60148c OpcodeDispatcher: emit AndWithFlags directly for 2ndary alu 
rely on opt pass to drop the flags.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-06 14:22:28 -04:00
Alyssa Rosenzweig 99660129f3 IR: implement AndWithFlags for 8/16-bit 
easier to deal with in the JIT

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-06 14:22:28 -04:00
Alyssa Rosenzweig 4331753ca0 Merge pull request #3408 from alyssarosenzweig/opt/tst 
Optimize TST
 2024-02-06 11:28:02 -04:00
Paulo Matos fa8bcfd67a Clean up access to possible nullptr 
Patch suggested by @Sonicadvance1
 2024-02-06 12:31:38 +00:00
Alyssa Rosenzweig 235f32ce8c Merge pull request #3401 from Sonicadvance1/runtime_preserve_all 
HostFeatures: Supports runtime disabling of preserve_all
 2024-02-05 15:34:46 -04:00
Alyssa Rosenzweig 2e0cb2fbd4 OpcodeDispatcher: optimize TST 
it's just an AndWithFlags setting the PF.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-05 15:32:21 -04:00
Alyssa Rosenzweig 4790a7ba79 IR: add AndWithFlags 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-05 15:32:21 -04:00
Ryan Houdek c437129ed8 Revert "Revert "FEXLoader: Moves thread management to the frontend"" 
This reverts commit 5358af7794.
 2024-02-03 00:57:36 -08:00
Alyssa Rosenzweig 8d3f0b6f02 OpcodeDispatcher: reassociate and sink W in sha1 
We only need each part of W extracted in the corresponding round, so sink the
extract into the round to reduce pressure.

Further, W and E are added and then never used again. So, by reassociating we
can do the add upfront, killing W and E at the start and further reducing
pressure.

Eliminates spilling in sha1rnds4.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-02 13:03:07 -04:00
Alyssa Rosenzweig 60f7b9bcc4 OpcodeDispatcher: optimze sha1's 2/3 expr 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-02 13:03:07 -04:00
Alyssa Rosenzweig a487557173 OpcodeDispatcher: extract BitwiseAtLeastTwo 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-02 13:03:07 -04:00
Alyssa Rosenzweig 394b4888bb OpcodeDispatcher: reassociate and remat C0, G0 
costs 2 moves and eliminates the rest of our spilling

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-02 13:03:07 -04:00
Alyssa Rosenzweig 142cbdd852 OpcodeDispatcher: expand, reassociate, and interleave sha256 calc 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-02 13:03:07 -04:00
Alyssa Rosenzweig 2f9102f78d OpcodeDispatcher: expand & interleave sha256 calc 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-02 13:03:07 -04:00
Alyssa Rosenzweig c9824d04cb OpcodeDispatcher: sink sha256 extracts 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-02 13:03:07 -04:00
Alyssa Rosenzweig 9c2a569539 OpcodeDispatcher: reexpress Major in sha256 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-02 13:03:07 -04:00
Alyssa Rosenzweig 515aa4ce3e OpcodeDispatcher: fuse eor+ror in sha256 
This reduces instructions a ton.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-02 13:03:07 -04:00
Alyssa Rosenzweig f616beb992 OpcodeDispatcher: CSE sha 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-02 13:03:07 -04:00
Alyssa Rosenzweig 0dcf1e12b8 OpcodeDispatcher: copyprop sha logic 
prepare for clever

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-02 13:03:07 -04:00
Alyssa Rosenzweig 2cbf544ef5 OpcodeDispatcher: expand sha logic 
no functional change, just preparing for cleverness.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-02 13:03:07 -04:00
Ryan Houdek 0eed73beeb HostFeatures: Supports runtime disabling of preserve_all 
This is used for instcountci to ensure instruction counts don't change
when a compiler supports this feature or not. Always runtime disable
when running in instcountci.

CMake option from #3394 can still be useful so leaving that in place.
 2024-02-02 08:59:04 -08:00
Mai 6993f4fd8d Merge pull request #3400 from Sonicadvance1/revert_runtime_longmode_switch 
Revert #3303
 2024-02-02 11:53:44 -05:00
Paulo Matos 4623544f69 Improve XCHG operations 
Marking loads as allowing upper garbage simplifies some operations.
Update InstCountCI as well.
 2024-02-02 08:16:13 +00:00
Ryan Houdek ccf1402fe6 Revert "FEXCore: Accurately store segment descriptors" 
This reverts commit 8648fb1485.
 2024-02-01 18:14:30 -08:00
Ryan Houdek da0e1b515a Revert "OpcodeDispatcher: Initial support for runtime long-mode switch" 
This reverts commit 9e5d7aa5fe.
 2024-02-01 18:14:24 -08:00
Ryan Houdek cec1814a09 Merge pull request #3384 from pmatos/CDQOp-Opt 
Optimize CDQOp
 2024-01-31 17:51:23 -08:00
Mai 4d49ac7c3d Merge pull request #3387 from alyssarosenzweig/opt/rotates 
Optimize rotates
 2024-01-31 18:20:40 -05:00
Alyssa Rosenzweig 6d13d9fb56 Merge pull request #3395 from pmatos/StaticAnalysis 
Code cleanup - mainly dead store removal; NFC
 2024-01-31 17:24:48 -04:00
Mai ae7dc250db Merge pull request #3386 from alyssarosenzweig/opt/shift 
Optimize shifts a bit
 2024-01-31 14:11:58 -05:00
Paulo Matos e4560ed0c8 Code cleanup - mainly dead store removal; NFC 
scan-build found a few dead stores that can be easily cleaned-up
 2024-01-31 08:35:55 +00:00
Alyssa Rosenzweig f3eee8f305 OpcodeDispatcher: optimize bextr's length sanitize 
reordering the operations saves an immediate move.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig f66085f4a7 OpcodeDispatcher: optimize bextr's (1 << x) - 1 
little algebraic trick I cribbed from llvm

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig c9461d9997 OpcodeDispatcher: optimize BEXTR flag setting 
use native test.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig d5eb99fac8 OpcodeDispatcher: optimize popcount flags 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig f3175848b1 OpcodeDispatcher: use lzcnt flag gen for tzcnt 
as far as flags go, they're identical: set ZF for zero output, set CF for output
= DestSize, undef the rest. merge the impls, so we get the optimized lzcnt impl
for tzcnt.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00