Little Nightmares Enhanced Edition (PPSA10737)

[zaryabzip]

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Title

Little Nightmares Enhanced Edition (PPSA10737)

Content version tested

01.004.000

AnyPS5 commit

main d92a8da, no pull requests on top.

System tested

Windows 11 (26200), NVIDIA GeForce RTX 3060 Laptop GPU, driver 617.42, i7-11800H, 16 GB; built from source with MinGW-w64 GCC 15.2.0 (WinLibs x86_64-ucrt-posix-seh, r7).

Furthest point

Stops before the first frame

What is shown

The window and swapchain are created (guest 3840x2160 presented at 1088x612) and the screen stays black. No frame is presented before the stop, so audio and input are not reached.

Current blocker

[gpu] driver failure: compute shader 0x2010fa0000: shader 0x2010fa0000 stage 0: ShaderRecompiler::Recompile: computed/data-dependent s_swappc_b64 call target at program counter 0x00001034 is not statically resolvable

3 of 3 runs on main: 139 s with a cold shader cache, about 42 s warm. The same stop with #6160 applied.

From agc_shader_replay --asm on the dumped request, this is the per-lane function-table waterfall of #3274/#4706, except that the table's V# is loaded once, about 0x400 bytes and several branches before the loop:

0x0c08  s_load_dwordx4        s[96:99], s[0:1], 0x10      ; user data u[0:1]
...
0x1004  v_readfirstlane_b32   vcc_lo, v70
0x100c  v_cmpx_eq_u32         vcc_lo, v70
0x1014  s_lshl_b32            vcc_lo, vcc_lo, 4
0x1018  s_buffer_load_dwordx4 s[16:19], s[96:99], vcc_lo
0x1024  s_mov_b32             s14..s17 <- s16..s19
0x1034  s_swappc_b64          s[14:15], s[14:15]
0x1048  s_cbranch_execnz      0x1004

FindTableCalls (GraphBuilder.cpp:1454 on d92a8da) needs the V# load in the call's block: findLastWriter stops at the first branch and sameBlock(descriptorLoad, index) fails, so the call is not linked. #6160's change to the writer search (branches past the call) and its constant-address path do not cover it. I found no open issue or pull request for this shape. 346 other shaders are deferred at registration with computed s_swappc_b64 targets; none of them stops the run before this one.

How it was run

• tools/unwrap_self.py on eboot.bin and the 7 modules in sce_module/; relinker --windows --registry eboot.elf app.exe (7 guest modules).
• tools/import_audit.py: 0 absent imports, 79 stubs, none called before the stop.
• app0/ holds atlas/, engine/, sce_sys/, eboot.bin, ue4commandline.txt and contentids.json; libs/ from the libs target plus the three MinGW runtime DLLs.
• ANYPS5_GPU=3060, no other environment variables.
• Without ue4commandline.txt in app0/ the title takes /devlog/app/ as its file root and exits at once with GEngineLoop.PreInit Failed!.

AI-assisted: yes (Claude Code)