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Author SHA1 Message Date
Alyssa Rosenzweig 4f4e38ace2 OpcodeDispatcher: use real branch for rep cmps 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-28 10:35:12 -04:00
Alyssa Rosenzweig edd6becc56 OpcodeDispatcher: use real branch for rep scas 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-28 10:35:12 -04:00
Alyssa Rosenzweig e47a94cae7 OpcodeDispatcher: skip mask with shld 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-28 10:18:29 -04:00
Alyssa Rosenzweig cc82dba1ca OpcodeDispatcher: use mvn for AF with constants 
This reduces pointless constant usage. For now, it's no net change to
instcountci, but it should make it easier to get wins later. Hopefully.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-28 10:18:28 -04:00
Alyssa Rosenzweig 8232669b22 OpcodeDispatcher: simplify 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-28 10:00:13 -04:00
Alyssa Rosenzweig 28936073c4 OpcodeDispatcher: allow upper garbage on NEG 
like SUB.

due to RA silliness, this is a loss for inst count but a win for cycles.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-28 09:59:57 -04:00
Alyssa Rosenzweig ef2559d911 OpcodeDispatcher: allow garbage with SCAS 
it's just feeding SUB flags which allow it

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-28 09:16:08 -04:00
Ryan Houdek d24446ed13 Merge pull request #3466 from Sonicadvance1/fixed_opt 
OpcodeDispatcher: Don't use AddShift with no shift
 2024-02-28 04:51:10 -08:00
Ryan Houdek 67f13ba927 Adds sign extending address bug that was detected when testing #3421 
Doesn't quite match the libc code directly because it uses `[gs:eax]`
with both having the sign bit set and we can't deal with that with ASM
tests. So match the behaviour in a different way.
 2024-02-27 19:57:22 -08:00
Ryan Houdek dc5239c003 InstCountCI: Update for previous fix 2024-02-27 19:57:06 -08:00
Ryan Houdek f346f89678 OpcodeDispatcher: Don't use AddShift with no shift 
This accidentally removed optimizations elsewhere that was only checking
for Add.
 2024-02-27 19:56:12 -08:00
Ryan Houdek 2f9449cb5a Merge pull request #3465 from alyssarosenzweig/icci/pa 
InstCountCI: enable preserve_all
 2024-02-27 16:39:46 -08:00
Ryan Houdek 139367d248 Merge pull request #3463 from Sonicadvance1/update_xxhash 
Update xxhash to v0.8.2
 2024-02-27 16:39:38 -08:00
Alyssa Rosenzweig fcebad51bd InstCountCI: Update 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-27 12:04:29 -04:00
Alyssa Rosenzweig b50292493a InstCountCI: enable preserve_all ABI 
This is what we'll actually ship (I hope), so that's the config we want to
track long-term. It's also a lot more managable resulting asm.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-27 12:03:58 -04:00
Ryan Houdek b74de53056 Merge pull request #3449 from Sonicadvance1/syscalls_passthrough_not_json 
Linux: Converts passthrough syscalls to direct passthrough handlers
 2024-02-27 07:50:04 -08:00
Alyssa Rosenzweig 49e798ab2b Merge pull request #3461 from alyssarosenzweig/opt/sbc 
Optimize SBC
 2024-02-27 11:29:45 -04:00
Ryan Houdek 151e2279af Linux: Converts passthrough syscalls to direct passthrough handlers 
Reimagining of #3355 without any json generators or new concepts.

Fixes some mislabeling of system calls. Some getting inlined when they
shouldn't be, a lot not getting inlined when they can be.

This really cleans up the syscall implementation, all syscalls that can
be passthrough implementations require a very small two line
declaration.
Additionally cleans up a bit of implementation cruft where some
passthrough syscalls were using the glibc syscall handler, and some were
using the glibc implementation. We have had multiple issues in the past
where the glibc implementation does something subtly different than the
raw syscall and breaks things. Now all passthrough handlers do a system
call directly, removing at least one indirection and some ambiguity.

This makes it significantly easier to add new passthrough syscalls as
well. Only need to do a version check and add the three lines per
syscall. Which there are new syscalls incoming that we will want to add.

Tangible improvements:
- Syscalls are lower overhead than ever.
- When I'm adding more syscalls I have less chance of mucking it up.
 2024-02-27 02:40:53 -08:00
Ryan Houdek 93ada89708 Linux: Move unimplement ustat and sysfs 
AArch64 doesn't implement these and will return ENOSYS.
Moving them to NotImplemented so we can get a log if an application
tries to use these.
 2024-02-27 02:39:36 -08:00
Mai f41674bb7d Merge pull request #3464 from Sonicadvance1/psychonauts_block 
InstcountCI: Add a monster of a game block
 2024-02-27 04:59:20 -05:00
Ryan Houdek 854fd70735 InstcountCI: Add a monster of a game block 
Doing very little work with a bunch of instructions.
Hottest block in the Windows version of Psychonauts, it's just doing a
matrix swizzle but in the worst possible way.
 2024-02-27 01:51:20 -08:00
Ryan Houdek 78a362581d Update xxhash to v0.8.2 
Switches to using upstream cmake files.
 2024-02-26 23:57:25 -08:00
Mai 8c0d5c6583 Merge pull request #3462 from Sonicadvance1/update_vixl4 
Update vixl
 2024-02-27 02:28:39 -05:00
Ryan Houdek 1c184997e7 InstcountCI: Update for vixl update 2024-02-26 23:17:52 -08:00
Ryan Houdek ccc699444d Update vixl 
Removes a commit from our fork.
 2024-02-26 23:16:31 -08:00
Ryan Houdek 946c805d84 Merge pull request #3459 from Sonicadvance1/fix_591 
Capture a 64-bit process trying to jump to 32-bit syscall handler
 2024-02-26 21:57:03 -08:00
Ryan Houdek 118b8b200e Merge pull request #3458 from Sonicadvance1/fix_635 
Track unittest dependencies through to the custom target
 2024-02-26 21:56:45 -08:00
Ryan Houdek aa9d7c5629 Merge pull request #3460 from Sonicadvance1/add_unittest_for_3421_bug 
Adds a unittest for a bug from #3421
 2024-02-26 21:56:17 -08:00
Ryan Houdek 0b34035085 Merge pull request #3439 from Sonicadvance1/allocate_first_4gb_of_64bit 
FEXLoader: Allocate the second 4GB of virtual memory when executing 32-bit
 2024-02-26 18:46:22 -08:00
Alyssa Rosenzweig b6bd826014 InstCountCI: Update 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-26 16:48:15 -04:00
Alyssa Rosenzweig 12cc980603 OpcodeDispatcher: shuffle adc flag order 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-26 16:48:07 -04:00
Alyssa Rosenzweig f3d55dd721 OpcodeDispatcher: shuffle SBC flag order 
avoids clobbering nzcv

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-26 16:48:07 -04:00
Alyssa Rosenzweig 91cef6b76f OpcodeDispatcher: use native ADC even for 8/16-bit 
we mask off the upper bits, and they agree in the lower bits.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-26 16:48:07 -04:00
Alyssa Rosenzweig 270cbf39b5 OpcodeDispatcher: specialize SALC 
this gets rid of the awkward non-flag SBB case, which streamlines SBB. while
getting better codegen for the demon opcode (-:

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-26 16:33:41 -04:00
Alyssa Rosenzweig 2e0be0a5e7 OpcodeDispatcher: allow more upper garbage with adc 
missed this last series.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-26 15:42:13 -04:00
Alyssa Rosenzweig d60c089697 OpcodeDispatcher: allow upper garbage with sbb 
for the usual reasons

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-26 15:35:14 -04:00
Alyssa Rosenzweig e76ebeab58 OpcodeDispatcher: use 1-op "src + CF" 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-26 15:35:14 -04:00
Alyssa Rosenzweig 333271d490 OpcodeDispatcher: fuse sbb when flags calculated 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-26 15:35:14 -04:00
Alyssa Rosenzweig a750870abf OpcodeDispatcher: use fused sbcs calculations 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-26 15:25:03 -04:00
Alyssa Rosenzweig 15db72ef60 IR: add Sbb, SbbWithFlags ops 
For fusing sbc+sbcs

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-26 15:25:03 -04:00
Ryan Houdek 9687ac51f0 Merge pull request #3424 from Sonicadvance1/safer_clone_stack_handling 
Linux: More safe stack cleanup for clone
 2024-02-26 06:59:27 -08:00
Alyssa Rosenzweig 5f16f357af Merge pull request #3456 from alyssarosenzweig/opt/adc 
Optimize ADC
 2024-02-26 09:39:37 -04:00
Ryan Houdek 4f028b8614 Capture a 64-bit process trying to jump to 32-bit syscall handler 
Fixes #591

Adds a simple unittest
 2024-02-26 05:37:29 -08:00
Alyssa Rosenzweig 32a4abbea7 Merge pull request #3457 from alyssarosenzweig/bug/nzcv 
RedundantFlagCalculationElimination: fix missing NEG case
 2024-02-26 09:31:06 -04:00
Ryan Houdek c00c9b397e Adds a unittest for a bug from #3421 
When the source arguments for LoadMem/StoreMem have bit 31 set then they
are incorrectly sign extending in some instances.

Detected this when testing #3421 but I don't have a proper fix for it.
 2024-02-26 00:07:19 -08:00
Ryan Houdek 6b5d8bd8c0 Track unittest dependencies through to the custom target 
Fixes #635
 2024-02-25 19:27:52 -08:00
Alyssa Rosenzweig 7deb4976a3 RedundantFlagCalculationElimination: fix missing NEG case 
can be predicated.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-25 17:37:16 -04:00
Alyssa Rosenzweig 2cfd71c159 InstCountCI: add dead ADC test 
nothing else covers this case

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-25 10:50:25 -04:00
Alyssa Rosenzweig 0f26780de0 InstCountCI: Update 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-25 10:50:25 -04:00
Alyssa Rosenzweig 1e153e0c81 OpcodeDispatcher: allow garbage with adcs 
for the usual reasons

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-02-25 10:50:02 -04:00