AArch64 update to LLVM 18

[Rot127]

Your checklist for this pull request

• [ ] I've documented or updated the documentation of every function and struct this PR changes. If not so I've explained why.
• [x] I've added tests that prove my fix is effective or that my feature works (if possible)

Detailed description

Generated with: https://github.com/capstone-engine/llvm-capstone/pull/45

New features/instructions

New features: ``` AArch64_FEATURE_HasPAuthLR, AArch64_FEATURE_HasSMEFA64, AArch64_FEATURE_HasFPMR, AArch64_FEATURE_HasFP8, AArch64_FEATURE_HasFAMINMAX, AArch64_FEATURE_HasFP8FMA, AArch64_FEATURE_HasSSVE_FP8FMA, AArch64_FEATURE_HasFP8DOT2, AArch64_FEATURE_HasSSVE_FP8DOT2, AArch64_FEATURE_HasFP8DOT4, AArch64_FEATURE_HasSSVE_FP8DOT4, AArch64_FEATURE_HasLUT, AArch64_FEATURE_HasSME_LUTv2, AArch64_FEATURE_HasSMEF8F16, AArch64_FEATURE_HasSMEF8F32, AArch64_FEATURE_HasSVE2orSME2, AArch64_FEATURE_HasCHK, AArch64_FEATURE_HasGCS, AArch64_FEATURE_HasCPA, ``` New instructions: ``` AArch64_INS_ADDPT, AArch64_INS_AUTIA171615, AArch64_INS_AUTIASPPC, AArch64_INS_AUTIB171615, AArch64_INS_AUTIBSPPC, AArch64_INS_BF1CVTL2, AArch64_INS_BF1CVTLT, AArch64_INS_BF1CVTL, AArch64_INS_BF1CVT, AArch64_INS_BF2CVTL2, AArch64_INS_BF2CVTLT, AArch64_INS_BF2CVTL, AArch64_INS_BF2CVT, AArch64_INS_F1CVTL2, AArch64_INS_F1CVTLT, AArch64_INS_F1CVTL, AArch64_INS_F1CVT, AArch64_INS_F2CVTL2, AArch64_INS_F2CVTLT, AArch64_INS_F2CVTL, AArch64_INS_F2CVT, AArch64_INS_FAMAX, AArch64_INS_FAMIN, AArch64_INS_FCVTNB, AArch64_INS_FMLALLBB, AArch64_INS_FMLALLBT, AArch64_INS_FMLALLTB, AArch64_INS_FMLALLTT, AArch64_INS_FMLALL, AArch64_INS_FVDOTB, AArch64_INS_FVDOTT, AArch64_INS_GCSPOPCX, AArch64_INS_GCSPOPM, AArch64_INS_GCSPOPX, AArch64_INS_GCSPUSHM, AArch64_INS_GCSPUSHX, AArch64_INS_GCSSS1, AArch64_INS_GCSSS2, AArch64_INS_GCSSTR, AArch64_INS_GCSSTTR, AArch64_INS_MADDPT, AArch64_INS_MADPT, AArch64_INS_MLAPT, AArch64_INS_MSUBPT, AArch64_INS_PACIA171615, AArch64_INS_PACIASPPC, AArch64_INS_PACIB171615, AArch64_INS_PACIBSPPC, AArch64_INS_PACNBIASPPC, AArch64_INS_PACNBIBSPPC, AArch64_INS_RETAASPPC, AArch64_INS_RETABSPPC, AArch64_INS_SUBPT, ```

Test plan

• [x] Fix current one.
• [x] Add new MC tests
• [x] Add tests for SME
• [x] Fuzzing

General detail testing comes afterwards, when testing in general is modernized.

Closing issues

closes https://github.com/capstone-engine/capstone/issues/2269 closes https://github.com/capstone-engine/capstone/issues/2270 closes https://github.com/capstone-engine/capstone/issues/2268 closes https://github.com/capstone-engine/capstone/issues/2285 closes https://github.com/capstone-engine/capstone/issues/2363

[hainest]

Relative to the Mar 2024 spec, the system registers listed below don't currently have a representation in Capstone. I've not yet checked to see if they are in LLVM-18's tablegen.

DBGBCR{16-63}_EL1 DBGBVR{16-63}_EL1 DBGWCR{16-63}_EL1 DBGWVR{16-63}_EL1 ICV_AP0R{0-3}_EL1 ICV_AP1R{0-3}_EL1 ICV_BPR1_EL1 ICV_CTLR_EL1 ICV_DIR_EL1 ICV_EOIR{0-1}_EL1 ICV_HPPIR{0-1}_EL1 ICV_IAR{0-1}_EL1 ICV_IGRPEN{0-1}_EL1 ICV_NMIAR1_EL1 ICV_PMR_EL1 ICV_RPR_EL1 SPMEVCNTR{16-63}_EL0 SPMEVFILT2R{16-63}_EL0 SPMEVFILTR{16-63}_EL0 SPMEVTYPER{16-63}_EL0 SP_EL3 TRBMPAM_EL1

[Rot127]

Couldn't find them in LLVM with grep as well.

[Rot127]

I cannot reproduce the fuzzing bug. Locally everything is fine (also no segfault for 0x0->0xffffffff).

My guess is, it is a Python 2 issues. So I'd wait for https://github.com/capstone-engine/capstone/pull/2378 and https://github.com/google/oss-fuzz/pull/12028.

clang-tidy fails with a false positive. The code is correct and clang-tidy-19/18 don't give the warning. But ubuntu-latest doesn't have clang-tidy-18 as package. So we just need to ignore it for now.

[FinnWilkinson]

Hi @Rot127, I'm really keen to see this PR merged into the next branch and know that there is a lot of other work that you and others are doing throughout the project. Is there anything I can do to help speed up this PR being merged?

[Rot127]

@FinnWilkinson The main thing is the missing review from @kabeor and/or @aquynh. I'm currently off. But will take time in two days to rebase it and address reviewer comments.

[Rot127]

@FinnWilkinson Please be aware that we will likely change the enum naming of AArch64_ -> AARCH64_ in the near future. Just so you are aware of (see: https://github.com/capstone-engine/capstone/pull/2349#discussion_r1641227883). I am sorry for apparently being sloppy and forgot to check it way earlier.

[Rot127]

@aquynh @kabeor Please review this. I just rebase it again. The failing tests are explained here: https://github.com/capstone-engine/capstone/pull/2298#issuecomment-2151699039

[Rot127]

@aquynh @kabeor When you review this weekend, you can skip https://github.com/capstone-engine/capstone/pull/2298/commits/0615ebb3cd51d2626d171c5361a87196f1478951. This one is only the enum name change.