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nir/opcodes: fix fsat signed zero correctness

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fsat(-0.0) must return +0.0.

Cc: mesa-stable

Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39137>
This commit is contained in:
Georg Lehmann 2026-01-03 10:31:01 +01:00 • committed by Marge Bot
parent f68b891a81
commit 026d4cd200
1 changed files with 1 additions and 1 deletions
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2
src/compiler/nir/nir_opcodes.py
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@ -236,7 +236,7 @@ OpenCL.
unop("isign", tint, "(src0 == 0) ? 0 : ((src0 > 0) ? 1 : -1)")
unop("iabs", tint, "(src0 < 0) ? -src0 : src0")
unop("fabs", tfloat, "fabs(src0)")
unop("fsat", tfloat, ("fmin(fmax(src0, 0.0), 1.0)"))
unop("fsat", tfloat, ("util_min_num(util_max_num(src0, 0.0), 1.0)"))
unop("frcp", tfloat, "bit_size == 64 ? 1.0 / src0 : 1.0f / src0")
unop("frsq", tfloat, "bit_size == 64 ? 1.0 / sqrt(src0) : 1.0f / sqrtf(src0)")
unop("fsqrt", tfloat, "bit_size == 64 ? sqrt(src0) : sqrtf(src0)")