A shader the recompiler cannot translate is a gap in emulation, not a reason to
take the process down: skipping the draw or dispatch that wanted it costs some
rendering, while aborting costs the title.
CompileOptions gains non_fatal and CompileResult gains unsupported. With
non_fatal set, the three places the recompile path gives up - an opcode with no
IR translation, a CFG that will not build, and resource tracking that cannot
resolve a descriptor - record the failure and unwind rather than calling EXIT,
and Recompile returns a result marked unsupported. The caller skips that draw or
dispatch. Nothing changes when non_fatal is clear.
Marvel's Spider-Man: Miles Morales meets an untranslatable compute shader on its
third frame, so a strict build cannot pass the opening logo. Astro's Playroom is
also stopped by a shader today and reaches a later, different failure with this
in place.
A conditional inside a loop where exactly one arm stays in the loop body has its
real merge at the arm that stays, not at the block the generic search finds.
Without this the CFG is rejected as unstructured and the shader falls back to
the dispatcher.
Also splits selection merges shared between a break and its continuation, which
the same shaders rely on.
A buffer load wrote its destination unconditionally, clobbering lanes the exec
mask had masked off. Select against the previous value so inactive lanes keep
what they held.
S_CMP_{EQ,LG}_U64 against a mask operand and zero is the idiom for 'are any
lanes live'. Treating it as a scalar compare loses the per-lane information, so
emit an actual ballot for that shape.
Decode the high-half D16 LDS read and route it through the existing unsigned-short load lowering. Represent the destination as a high-half partial write so the low 16 bits of the VGPR remain intact. Add captured-instruction decode coverage and a Vulkan execution regression that verifies the preserved half.
Co-authored-by: SueryRD <the.ai.tester2@gmail.com>
Allow byte, word, and full-dword SDWA source selection for V_NOT_B32 and V_FFBL_B32. Add captured instruction tests that verify decoding, IR extraction, SPIR-V generation, and runtime results.
Co-authored-by: SueryRD <the.ai.tester2@gmail.com>
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