The switch to features_cpu left six references behind, one of which
breaks the build: microVU_Execute.inl reaches the header through
microVU.h and calls cpuinfo_has_x86_avx2() twice, so it takes
common/CpuFeatures.h and CpuHasAVX2() like the other call sites.
pcsx2core.vcxproj still named the include directory and referenced
cpuinfo.vcxproj, and common/CpuFeatures.h was listed for cmake but not
for MSVC. tests/ipu linked the cpuinfo objects, MULTI_ISA_SELECT having
resolved into them, so it links features_cpu.o instead and says so if
the core has not been built yet. tests/emitter carried three include
paths, and the multi-ISA gate document named the old predicate.
Checklist that must pass before flipping ENABLE_MULTI_ISA on by default:
build the multi-ISA config, confirm all three tiers are compiled in, the SSE4
safety gate (static objdump scan + Intel SDE -nhm run proving no AVX executes
on the sse4 path), the gcc/clang/MinGW/MSVC build matrix, and a fallback-
renderer perf comparison. Documents the one-line default flip and the trivial
rollback (switch back to 0).
LibretroAdmin