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thuanquangandClaude Opus 5.5
fa6f246a9b
On RDNA2 the image, buffer and global float atomics (fmin, fmax, fcmpswap and the _x2 forms) flush both operands to a signed zero when bit 0 of the shader's denormal field is clear, as the LDS forms do: the f32 field for the 32-bit forms, the f16/f64 field for _x2. Only the LDS forms flushed here. floatAtomicFlush (was sharedFloatFlush) now sets MemoryInfo::flushDenormals for every float atomic, and AtomicFloatBits applies it in minMax and compareSwap. The float atomic tests from #332, #506 and #562 were measured with denormals kept, so they now set FLOAT_MODE 0xf0. Co-Authored-By: Claude Opus 5.5 <[email protected]>