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AnyPS5/docs/dev
AlexandClaude Opus 5.5 d199fbc708 fix(shader): quiet f64 signaling NaNs only in IEEE mode
The f64 unary instructions, v_ldexp_f64, v_div_fixup_f64 and
v_cvt_f64_f32 always quieted a signaling NaN. The hardware does that
only with IEEE_MODE=1, as #1867 measured for the f32 and f16 forms;
with IEEE=0 the NaN comes out unchanged, measured on gfx1036.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-10 09:40:09 +02:00
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