Mesa (master): nir: Add fsat_signed opcode

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Module: Mesa
Branch: master
Commit: 0aedce417ae48293f8bebd41c3d69b759b003cf1
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0aedce417ae48293f8bebd41c3d69b759b003cf1

Author: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Date:   Thu Apr 30 14:31:47 2020 -0400

nir: Add fsat_signed opcode

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

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Reviewed-by: Eric Anholt <eric at anholt.net>
Acked-by: Jason Ekstrand <jason at jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5102>

---

 src/compiler/nir/nir_opcodes.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/compiler/nir/nir_opcodes.py b/src/compiler/nir/nir_opcodes.py
index e1c9788b4f0..dd70640caa2 100644
--- a/src/compiler/nir/nir_opcodes.py
+++ b/src/compiler/nir/nir_opcodes.py
@@ -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)")