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nir: Add fsat_signed opcode

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Exists on later Mali. Equivalent to clamp(x, -1.0, 1.0)

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5102>
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Alyssa Rosenzweig 2020-04-30 14:31:47 -04:00 • committed by Marge Bot
parent 518909290b
commit 0aedce417a
1 changed files with 1 additions and 0 deletions
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src/compiler/nir/nir_opcodes.py
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@ -200,6 +200,7 @@ 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_signed", tfloat, ("fmin(fmax(src0, -1.0), 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)")