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Author SHA1 Message Date
Alyssa Rosenzweig ad0dd34412 InstCountCI: Update 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-31 20:31:38 -04:00
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 784cdd7b6b InstCountCI: Update 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-31 19:54:14 -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 67baff8a57 Merge pull request #3537 from Sonicadvance1/remove_vla_ra 
RA: Removes VLA usage
 2024-03-31 14:44:37 -04:00
Ryan Houdek fedc24be1e RA: Removes VLA usage 
Just like #3508, clang-18 complains about VLA usage.

This vector is relatively small, only around 18 elements but is
semi-dynamic depending on arch and if FEXCore is targeting Linux or
Win32.
 2024-03-30 16:50:04 -07:00
Alyssa Rosenzweig 2a625a467b Merge pull request #3530 from alyssarosenzweig/opt/cmpxchg-flags2 
Optimize cmpxchg with flagm
 2024-03-30 15:22:40 -04:00
Alyssa Rosenzweig 9bca052146 InstCountCI: Update 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-30 14:12:59 -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
Alyssa Rosenzweig deba6a1b76 JIT: add comment about unaligned backpatching 
save future me some grief.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-30 14:12:59 -04:00
Alyssa Rosenzweig 6866c3d0ac InstCountCI: add dead cmpxchg case 
not super optimizable but worth tracking.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-30 14:12:59 -04:00
Alyssa Rosenzweig d25ace43aa Merge pull request #3528 from alyssarosenzweig/ra/xsave-xrstor 
Eliminate crossblock liveness in xsave/xrstor
 2024-03-30 14:11:25 -04:00
Mai 2ad170b7d7 Merge pull request #3533 from Sonicadvance1/remove_debugstore 
FEXCore: Remove DebugStore map
 2024-03-29 20:19:47 -04:00
Ryan Houdek 8564290f76 FEXCore: Remove DebugStore map 
This hasn't been used and is blocking refactoring more code.
 2024-03-29 14:58:44 -07:00
Alyssa Rosenzweig 1d96631af7 InstCountCI: Update 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-29 09:58:03 -04:00
Alyssa Rosenzweig c513b9685d OpcodeDispatcher: eliminate crossblock liveness in xsave/xrstor 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-29 09:57:16 -04:00
Ryan Houdek aa26b6288e Merge pull request #3522 from alyssarosenzweig/ra/cmpxchg8 
OpcodeDispatcher: eliminate branch in cmpxchg pair
 2024-03-27 21:56:19 -07:00
Mai 3d31291c3d Merge pull request #3510 from Sonicadvance1/fix_pthread_memleak 
Linux/Threads: Fixes a stack memory leak for pthreads
 2024-03-27 21:38:44 -04:00
Ryan Houdek 624bc3fce5 Merge pull request #3520 from Sonicadvance1/sleep_process 
FEXLoader: Add a way to sleep a process on startup
 2024-03-27 18:35:06 -07:00
Alyssa Rosenzweig d1722ab119 InstCountCI: Update 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-27 12:40:27 -04:00
Alyssa Rosenzweig 61758ea47d OpcodeDispatcher: eliminate branch in cmpxchg pair 
In the old case:

* if we take the branch, 1 instruction
* if we don't take the branch, 3 instruction
* branch predictor fun
* 3 instructions of icache pressure

In the new case:

* unconditionally 2 instructions
* no branch predictor dependence
* 2 instructions of icache pressure

This should not be non-neglibly worse, and it simplifies things for RA.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-27 12:40:06 -04:00
Ryan Houdek 7b74ca1931 Merge pull request #3514 from alyssarosenzweig/opt/demon 
rewrite Demon Addition Adjust (DAA) and other demonic opcodes
 2024-03-26 23:24:00 -07:00
Ryan Houdek 24fd28ed9e Merge pull request #3511 from Sonicadvance1/more_tso_levers 
FEXCore: Adds more TSO control levers
 2024-03-26 23:23:41 -07:00
Ryan Houdek 970d5d5b13 Merge pull request #3509 from Sonicadvance1/allow_telemetry_redirect 
Telemetry: Allow redirecting directory that data is written to
 2024-03-26 23:23:05 -07:00
Ryan Houdek 79454ed8a6 Merge pull request #3507 from Sonicadvance1/fd_tracking_check 
FEXLoader: Add some debug-only tracking for FEX owned FDs
 2024-03-26 23:22:29 -07:00
Ryan Houdek 7f90ca53f7 Merge pull request #3505 from Sonicadvance1/telemetry_noncanonical 
Telemetry: Adds tracker for non-canonical memory access crash
 2024-03-26 23:21:32 -07:00
Mai 542f454630 Merge pull request #3517 from Sonicadvance1/remove_mman 
FEXCore: Removes vestigial mman SMC checking
 2024-03-26 23:28:05 -04:00
Ryan Houdek 4ea6305940 Merge pull request #3521 from neobrain/fix_libfwd_vkcreateinstance 
Library Forwarding/vulkan: Fix query of vkCreateInstance function pointer
 2024-03-26 08:59:23 -07:00
Tony Wasserka 4d8ffa2abb Library Forwarding/vulkan: Fix query of vkCreateInstance function pointer 
The Vulkan specification states that querying "global commands" like
vkCreateInstance with a non-NULL instance is undefined behavior. Indeed, some
implementations will return null pointers in such cases.

Instead, we can drop the query from DoSetupWithInstance altogether, since
the library initializer will load the function pointer using dlsym instead.

Fixes #3519.
 2024-03-26 16:25:51 +01:00
Ryan Houdek ade0c46845 FEXLoader: Add a way to sleep a process on startup 
I find myself reimplementing this nearly monthly. Actually codify it so
I can stop reimplementing it.
 2024-03-26 07:48:09 -07:00
Ryan Houdek 1450c92b60 Merge pull request #3518 from pmatos/20MFix 
Put <20M in double quotes to avoid truncate error
 2024-03-26 05:10:45 -07:00
Paulo Matos 53f02ee869 Put <20M in double quotes to avoid truncate error 
Avoids bash assuming < is redirection.
See error in https://github.com/FEX-Emu/FEX/actions/runs/8434045431/job/23096421079#step:18:16
 2024-03-26 11:47:57 +00:00
Ryan Houdek 6f29e75f67 FEXCore: Removes vestigial mman SMC checking 
This wasn't actually wired up to anything ever since some refactoring
occured two years ago.
 2024-03-26 02:56:26 -07:00
Ryan Houdek c1c797bcba FEXConfig: Add new TSO levers 
Nice and convenient when testing applications.
 2024-03-26 02:50:54 -07:00
Alyssa Rosenzweig bbc232741b InstCountCI: Update 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-25 19:43:20 -04:00
Alyssa Rosenzweig dfe0bdd7f2 OpcodeDispatcher: rewrite DAS 
exhaustively checked against the Intel pseudocode since this is tricky:

  def intel(AL, CF, AF):
      old_AL = AL
      old_CF = CF
      CF = False

      if (AL & 0x0F) > 9 or AF:
          Borrow = AL < 6
          AL = (AL - 6) & 0xff
          CF = old_CF or Borrow
          AF = True
      else:
          AF = False

      if (old_AL > 0x99) or old_CF:
          AL = (AL - 0x60) & 0xff
          CF = True

      return (AL & 0xff, CF, AF)

  def fex(AL, CF, AF):
      AF = AF | ((AL & 0xf) > 9)
      CF = CF | (AL > 0x99)
      NewCF = CF | (AF if (AL < 6) else CF)
      AL = (AL - 6) if AF else AL
      AL = (AL - 0x60) if CF else AL
      return (AL & 0xff, NewCF, AF)

  for AL in range(256):
      for CF in [False, True]:
          for AF in [False, True]:
              ref = intel(AL, CF, AF)
              test = fex(AL, CF, AF)
              print(AL, "CF" if CF else "", "AF" if AF else "", ref, test)
              assert(ref == test)

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-25 19:43:10 -04:00
Alyssa Rosenzweig e26481e3cc OpcodeDispatcher: simplify AAM 
in the area.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-25 19:43:10 -04:00
Alyssa Rosenzweig 86b5a2f352 OpcodeDispatcher: simplify AAD 
noticed in the area.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-25 19:43:10 -04:00
Alyssa Rosenzweig 2bf880c43a OpcodeDispatcher: rewrite AAS 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-25 19:43:10 -04:00
Alyssa Rosenzweig 583d4f8f94 OpcodeDispatcher: factor out CalculateAFForDecimal 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-25 19:43:10 -04:00
Alyssa Rosenzweig 3ca2c4377f OpcodeDispatcher: rewrite AAA 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-03-25 19:43:10 -04:00
Ryan Houdek 32ec4a3c81 Merge pull request #3508 from Sonicadvance1/stop_using_vla 
ELFParser: Stop using a VLA
 2024-03-25 12:18:37 -07:00
Ryan Houdek 76983476b9 Merge pull request #3504 from Sonicadvance1/fix_loop_a16 
OpcodeDispatcher: Fixes 32-bit mode LOOP RCX register usage
 2024-03-25 12:18:14 -07:00
Alyssa Rosenzweig 150af80f3f Merge pull request #3512 from Sonicadvance1/panic_spilling_block 
InstcountCI: Adds a block that is causing panic spilling
 2024-03-25 13:13:48 -04:00
Alyssa Rosenzweig a8b59c16d6 Merge pull request #3513 from Sonicadvance1/panic_spilling_rip 
RA: Adds RIP when a block panic spills
 2024-03-25 13:13:15 -04:00