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Author SHA1 Message Date
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
Mai 920a8db369 Merge pull request #3397 from pmatos/XCHGOp 
Improve XCHG operations
 2024-02-02 11:53:22 -05:00
Ryan Houdek 9c37c0f1c3 Merge pull request #3392 from neobrain/feature_libfwd_fixed_size_ints 
Library Forwarding: Handle cross-architecture differences of integer types
 2024-02-02 08:42:41 -08:00
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 45587278c9 InstCountCI: Update for segment changes 2024-02-01 18:17:28 -08:00
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 c0ec4da849 Revert "Mingw: Update for GDT" 
This reverts commit ae2f98e017.
 2024-02-01 18:14:19 -08:00
Mai bd1e029f35 Merge pull request #3399 from Sonicadvance1/fix_json_argumenthandler 
Config: Fixes JSON parsing of "ArgumentHandler" types
 2024-02-01 19:59:45 -05:00
Ryan Houdek 690cb6fa48 Config: Fixes JSON parsing of "ArgumentHandler" types 
When 4d109c9ce0 fixed parsing strenum
types in the json, it also added `ArgumentHandler` types to the json
parsing. This was incorrect as those types are already stored in the
json in their decoded numerical format.

Without this change, all config options with `ArgumentHandler` will
decode as "0" which is incorrect. The main killer here is that SMCChecks
gets disabled (visible in both FEXConfig and when applications are
running) which was causing spurious failures.
 2024-02-01 16:20:57 -08:00
Ryan Houdek d34302a968 Merge pull request #3398 from neobrain/fix_flt_smc_warnings 
FEXLinuxTests: Fix build warnings
 2024-02-01 12:52:24 -08:00
Tony Wasserka ac77376441 FEXLinuxTests: Suppress "attribute ignored" warnings for nocf_check 2024-02-01 14:43:50 +01:00
Tony Wasserka f246e9864c FEXLinuxTests: Simplify a few extern "C" declarations 2024-02-01 14:43:50 +01:00
Tony Wasserka 78cb2cd9fc FEXLinuxTests: Fix warnings about unused results 2024-02-01 14:43:50 +01:00
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
Mai f4086b25e6 Merge pull request #3385 from alyssarosenzweig/opt/bmi 
Optimize bit manipulation instructions
 2024-01-31 14:07:23 -05:00
Tony Wasserka 8e1aaa0559 Library Forwarding: Avoid de-sugaring pointee types 
Doing so would accidentally resolve typedefs before. This code isn't needed
now that integers are mapped to fixed-size equivalents anyway.
 2024-01-31 19:16:19 +01:00
Tony Wasserka a4c1aaa6bc Library Forwarding: Fix build for clang < 16 2024-01-31 19:14:57 +01:00
Ryan Houdek 37a611bcd6 Merge pull request #3394 from pmatos/PreserveAllOption 
Add cmake option DISABLE_CLANG_PRESERVE_ALL
 2024-01-31 00:58:30 -08:00
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
Paulo Matos 6d58ea31b9 Add cmake option DISABLE_CLANG_PRESERVE_ALL 
Forces disabling use of __attribute__((preserve_all)).
Until CI uses clang17, where this attribute was added, instcountci fails
when FEX is compiled with clang>=17.
 2024-01-31 08:29:20 +00:00
Ryan Houdek 3db31a655c Merge pull request #3393 from Sonicadvance1/fix_relative_data 
InstCountCI: Fixes test to not use relative data
 2024-01-30 23:43:26 -08:00
Alyssa Rosenzweig e9a6bfc077 InstCountCI: Update 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig 5a143c016c unittests: add ASM test for blsmsk flags 
failing on main

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig fd1307eea3 unittests: add BLSI flag test 
passing on main, but kinda by accident?

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig d9f08d4bdf unittests: add BLSR flag unit test 
failng on main

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
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
Alyssa Rosenzweig 3dd597a591 OpcodeDispatcher: optimize lzcnt 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig e8e05252f0 OpcodeDispatcher: optimize BLSI 
and explain why the suss thing we did before was actually right all along.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig 93cef53ec0 OpcodeDispatcher: optimize blsr flags 
reorder to avoid nzcv clobber

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig 3a19133267 OpcodeDispatcher: fix inverted BLSR carry 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig 9b309b2102 OpcodeDispatcher: optimize blsmsk flags 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig fe88b904c9 OpcodeDispatcher: fix missing SF set with blsmsk 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig 2e63c6d547 OpcodeDispatcher: fix inverted CF with blsmsk 
CF set if SRC = 0

per https://www.felixcloutier.com/x86/blsmsk

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:28:06 -04:00
Alyssa Rosenzweig 4cc59ba8f5 InstCountCI: Update 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:26:59 -04:00
Alyssa Rosenzweig 0bc9e1a409 OpcodeDispatcher: clobber OF with shift immediate 
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:26:59 -04:00
Alyssa Rosenzweig 338f12845d OpcodeDispatcher: save a constant in shld 
one weird trick

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
 2024-01-30 22:26:59 -04:00