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964b5dc00a7cfc9099b470a9b5d2eee2faeb4e02
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29 Commits
Author SHA1 Message Date
Henrik RydgårdandClaude Fable 5.1 e0f09c55d5 MIPS: INT_MIN / -1 leaves HI at zero, like the hardware 
Every path special-cased the one signed division overflow and set the
remainder to -1. cpu/cpu_alu/cpu_div, recorded on a PSP, says it's 0.
The classic arm64 JIT was the only one that got it right, by not
special-casing it at all.

arm64, RISC-V and LoongArch all produce INT_MIN with remainder 0 natively,
so their fixup blocks go away. x86 has to keep the check (IDIV traps) but
sets HI to 0 now, and so do both interpreters.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
 2026-09-22 11:02:20 -06:00
Unknown W. Brackets 3a705d9470 x86jit: Implement BSwap16. 2023-09-23 22:01:09 -07:00
Unknown W. Brackets 580c9a634b x86jit: Implement ReverseBits. 2023-09-23 22:00:58 -07:00
Unknown W. Brackets 15f01b13a2 x86jit: Small tweak for SltU zero, x. 2023-09-23 22:00:38 -07:00
Unknown W. Brackets 1b756ff8c1 arm64jit: Add initial base for IR jit. 
This works, but very slowly at this point.
 2023-09-03 12:14:28 -07:00
Unknown W. Brackets b370a89ef2 x86jit: Reduce block link padding. 
Reduces bloat a good bit.
 2023-09-01 22:33:02 -07:00
Unknown W. Brackets 0cb6a17ea3 x86jit: Small Clz codesize optimization. 2023-08-28 21:17:06 -07:00
Unknown W. Brackets 0a5eafa3de x86jit: Another small LEA optimization. 2023-08-28 21:09:56 -07:00
Unknown W. Brackets 7f3e2e55b5 x86jit: Small opt for Sltu. 2023-08-28 21:09:56 -07:00
Unknown W. Brackets 4e90bd5070 x86jit: Use NEG more automatically for Sub x,0,y. 2023-08-28 21:09:56 -07:00
Henrik Rydgård 54ebe461fc Merge pull request #17994 from unknownbrackets/x86-jit-lea 
x86: Use LEA in a few sensible places
 2023-08-28 10:17:13 +02:00
Unknown W. Brackets 479ebaea11 x86: Use LEA in a few sensible places. 2023-08-27 13:59:19 -07:00
Unknown W. Brackets 497fc09c29 x86jit: Implement divides. 2023-08-27 12:34:58 -07:00
Unknown W. Brackets 1b25f854a1 x86jit: Reduce code size a tiny bit. 2023-08-27 12:34:58 -07:00
Unknown W. Brackets 2231fb807b x86jit: Implement Clz, Not, XorConst. 2023-08-27 12:34:58 -07:00
Unknown W. Brackets d021706eb3 x86jit: Implement conditional assigns. 2023-08-25 00:01:03 -07:00
Unknown W. Brackets d1a30334bf x86jit: Implement multiplies. 2023-08-25 00:01:03 -07:00
Unknown W. Brackets 363f2b68e1 x86jit: Implement shifts. 2023-08-25 00:01:03 -07:00
Unknown W. Brackets 2fbdc42a5c x86jit: Reduce code a bit in SETcc paths. 2023-08-25 00:00:35 -07:00
Unknown W. Brackets d86f6ae618 x86jit: Implement set less thans. 2023-08-23 22:17:55 -07:00
Unknown W. Brackets 5473a5c698 x86jit: Add low MapWithFlags for Ext8to32. 2023-08-23 22:17:55 -07:00
Unknown W. Brackets a1bddd880d x86jit: Fix sign extension. 2023-08-22 23:29:13 -07:00
Henrik Rydgård 6a3840d9b6 Implement bswap just because 2023-08-22 16:18:03 +02:00
Henrik Rydgård c5a076487e Disable extends on x86-32 2023-08-22 16:09:45 +02:00
Henrik Rydgård b67741509c Implement a few ALU ops in the x86 JIT-from-IR. 2023-08-22 16:08:12 +02:00
Unknown W. Brackets 40b3ff9573 x86jit: Fix spill issue. 2023-08-21 08:23:58 -07:00
Unknown W. Brackets 538832940a x86jit: Implement some shifts. 2023-08-21 00:07:42 -07:00
Unknown W. Brackets 104b6d8c15 x86jit: Implement some basic arithmetic. 2023-08-20 22:28:54 -07:00
Unknown W. Brackets 4e3f3860f9 x86jit: Stub out op categories to files. 2023-08-20 22:28:54 -07:00