ppsspp

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Henrik RydgårdandClaude Opus 5.5 d9b36b7e46 CrossSIMD: Keep the C++ fallback's integer ops defined, like the SIMD ones

The fallback (which RISC-V uses) did its integer arithmetic in plain int,
where signed overflow and left shifts of negative values are undefined,
and converted out of range floats with a cast, which is undefined too:
RISC-V gives INT_MAX for NaN where SSE gives INT_MIN and NEON 0. With GCC
on RISC-V that broke GEUVSpanCore in the GEMath unit test. Now the
arithmetic wraps through uint32_t, like the SIMD instructions, and an out
of range or NaN conversion gives INT_MIN, like SSE.

Also skip GERowSum's zero terms before computing their shift, as their
exponent can be INT_MIN. Found with -fsanitize=undefined on the fallback.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-09 11:12:48 +02:00

fast

Address LSX CrossSIMD review feedback

2026-05-25 15:40:22 +02:00

lin

Remove a confusing operator overload from Lin::Vec3

2026-05-19 16:33:45 +02:00

CrossSIMD.h

CrossSIMD: Keep the C++ fallback's integer ops defined, like the SIMD ones

2026-10-09 11:12:48 +02:00

curves.cpp

Fix scaling issues in cocoa text drawer