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Port upstream float and denormal peepholes (U1) - #477

Merged

RINNECODER merged 13 commits into

mainfrom

upr1/float-peepholes

Oct 13, 2026

Merged

Port upstream float and denormal peepholes (U1)#477
RINNECODER merged 13 commits into
mainfrom
upr1/float-peepholes

Commits on Oct 13, 2026
- perf(shader): pick the f32 NaN result with one quiet and one fallback select
  
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  2d5ea14
- perf(shader): drop the output flush of f32 products
  
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  b3e64e1
- perf(shader): treat f32 min, max, med3, floor and ceil results as denormal-free
  
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  766742c
- perf(shader): treat f32 fract, sin and cos results as denormal-free
  
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  7a81048
- perf(shader): drop flushes of f32 results that cannot be denormal
  
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  2ac6c3e
- fix(shader): take the fused result when an f16 fma's sum is exact
  
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  88255ed
- perf(shader): take the f32 mul, fma and add result fixups only when needed
  
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  b227dde
- fix(shader): read lane 63 of half-wave reductions whose keys exclude helper lanes
  
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  ea2b995
- test(shader): cover the search order of the half-wave key proof
  
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  d2388c1
- perf(shader): find the ds_permute_b32 source lane with ballots
  
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  c7f11ed
- perf(shader): mark runtime metadata buffers read-only
  
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  d28fb65
- perf(shader): fence a CAS-loop LDS atomic once
  
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  5e93fb9
- chore(shader): bump the shader disk cache format for the float peephole ports
  
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  claude
  committed
  134d43d

Commits

Commits on Oct 13, 2026