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nir: add AMD_gcn_shader extended instructions

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Signed-off-by: Daniel Schürmann <daniel.schuermann@campus.tu-berlin.de>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Daniel Schürmann
2018-02-23 13:54:58 +01:00
committed by Bas Nieuwenhuizen
parent 39437025de
commit a1a2a8dfda
2 changed files with 30 additions and 0 deletions
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2
src/compiler/nir/nir_lower_alu_to_scalar.c
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@@ -96,6 +96,8 @@ lower_alu_instr_scalar(nir_alu_instr *instr, nir_builder *b)
case nir_op_vec4:
case nir_op_vec3:
case nir_op_vec2:
case nir_op_cube_face_coord:
case nir_op_cube_face_index:
/* We don't need to scalarize these ops, they're the ones generated to
* group up outputs into a value that can be SSAed.
*/

28
src/compiler/nir/nir_opcodes.py
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@@ -352,6 +352,34 @@ for i in xrange(1, 5):
for j in xrange(1, 5):
unop_horiz("fnoise{0}_{1}".format(i, j), i, tfloat, j, tfloat, "0.0f")
# AMD_gcn_shader extended instructions
unop_horiz("cube_face_coord", 2, tfloat32, 3, tfloat32, """
dst.x = dst.y = 0.0;
float absX = fabs(src0.x);
float absY = fabs(src0.y);
float absZ = fabs(src0.z);
if (src0.x >= 0 && absX >= absY && absX >= absZ) { dst.x = -src0.y; dst.y = -src0.z; }
if (src0.x < 0 && absX >= absY && absX >= absZ) { dst.x = -src0.y; dst.y = src0.z; }
if (src0.y >= 0 && absY >= absX && absY >= absZ) { dst.x = src0.z; dst.y = src0.x; }
if (src0.y < 0 && absY >= absX && absY >= absZ) { dst.x = -src0.z; dst.y = src0.x; }
if (src0.z >= 0 && absZ >= absX && absZ >= absY) { dst.x = -src0.y; dst.y = src0.x; }
if (src0.z < 0 && absZ >= absX && absZ >= absY) { dst.x = -src0.y; dst.y = -src0.x; }
""")
unop_horiz("cube_face_index", 1, tfloat32, 3, tfloat32, """
float absX = fabs(src0.x);
float absY = fabs(src0.y);
float absZ = fabs(src0.z);
if (src0.x >= 0 && absX >= absY && absX >= absZ) dst.x = 0;
if (src0.x < 0 && absX >= absY && absX >= absZ) dst.x = 1;
if (src0.y >= 0 && absY >= absX && absY >= absZ) dst.x = 2;
if (src0.y < 0 && absY >= absX && absY >= absZ) dst.x = 3;
if (src0.z >= 0 && absZ >= absX && absZ >= absY) dst.x = 4;
if (src0.z < 0 && absZ >= absX && absZ >= absY) dst.x = 5;
""")
def binop_convert(name, out_type, in_type, alg_props, const_expr):
opcode(name, 0, out_type, [0, 0], [in_type, in_type], alg_props, const_expr)