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nak/nir: Emit nir_intrinsic_ipa_nv directly for FS system values

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28377>
This commit is contained in:
Faith Ekstrand 2024-03-25 11:12:22 -05:00 • committed by Marge Bot
parent 668880c8c8
commit 3b967789f4
1 changed files with 3 additions and 11 deletions
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14
src/nouveau/compiler/nak_nir.c
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@ -392,6 +392,7 @@ nak_sysval_attr_addr(gl_system_value sysval)
case SYSTEM_VALUE_INSTANCE_ID: return NAK_ATTR_INSTANCE_ID;
case SYSTEM_VALUE_VERTEX_ID: return NAK_ATTR_VERTEX_ID;
case SYSTEM_VALUE_FRONT_FACE: return NAK_ATTR_FRONT_FACE;
case SYSTEM_VALUE_LAYER_ID: return NAK_ATTR_RT_ARRAY_INDEX;
default: unreachable("Invalid system value");
}
}
@ -446,14 +447,6 @@ nak_nir_lower_system_value_intrin(nir_builder *b, nir_intrinsic_instr *intrin,
nir_def *val;
switch (intrin->intrinsic) {
case nir_intrinsic_load_layer_id: {
const uint32_t addr = nak_varying_attr_addr(VARYING_SLOT_LAYER);
val = nir_load_input(b, intrin->def.num_components, 32,
nir_imm_int(b, 0), .base = addr,
.dest_type = nir_type_int32);
break;
}
case nir_intrinsic_load_primitive_id:
case nir_intrinsic_load_instance_id:
case nir_intrinsic_load_vertex_id: {
@ -471,14 +464,13 @@ nak_nir_lower_system_value_intrin(nir_builder *b, nir_intrinsic_instr *intrin,
break;
}
case nir_intrinsic_load_layer_id:
case nir_intrinsic_load_front_face: {
assert(b->shader->info.stage == MESA_SHADER_FRAGMENT);
const gl_system_value sysval =
nir_system_value_from_intrinsic(intrin->intrinsic);
const uint32_t addr = nak_sysval_attr_addr(sysval);
val = nir_load_input(b, intrin->def.num_components, 32,
nir_imm_int(b, 0), .base = addr,
.dest_type = nir_type_int32);
val = load_fs_input(b, intrin->def.num_components, addr, nak);
break;
}