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nir: add support for min/max/median of 3 srcs 

These are needed for SPV_AMD_shader_trinary_minmax,
the AMD HW supports these.

Co-authored-by: Daniel Schürmann <daniel.schuermann@campus.tu-berlin.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
This commit is contained in:
Dave Airlie 2016-12-28 00:31:02 +00:00 committed by Bas Nieuwenhuizen
parent 025105453a
commit 3e830a1af2
1 changed files with 14 additions and 0 deletions
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14
src/compiler/nir/nir_opcodes.py
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@ -661,6 +661,20 @@ triop("flrp", tfloat, "src0 * (1 - src2) + src1 * src2")
triop("fcsel", tfloat32, "(src0 != 0.0f) ? src1 : src2")
# 3 way min/max/med
triop("fmin3", tfloat, "fminf(src0, fminf(src1, src2))")
triop("imin3", tint, "MIN2(src0, MIN2(src1, src2))")
triop("umin3", tuint, "MIN2(src0, MIN2(src1, src2))")
triop("fmax3", tfloat, "fmaxf(src0, fmaxf(src1, src2))")
triop("imax3", tint, "MAX2(src0, MAX2(src1, src2))")
triop("umax3", tuint, "MAX2(src0, MAX2(src1, src2))")
triop("fmed3", tfloat, "fmaxf(fminf(fmaxf(src0, src1), src2), fminf(src0, src1))")
triop("imed3", tint, "MAX2(MIN2(MAX2(src0, src1), src2), MIN2(src0, src1))")
triop("umed3", tuint, "MAX2(MIN2(MAX2(src0, src1), src2), MIN2(src0, src1))")
opcode("bcsel", 0, tuint, [0, 0, 0],
[tbool, tuint, tuint], "", "src0 ? src1 : src2")