brw: Add a generic LOGICAL instruction kind

This kind of instruction doesn't have a special struct but
will still be always allocated so that it can be lowered to SEND.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36730>

src/intel/compiler/brw_inst.cpp

@@ -201,6 +201,18 @@ brw_inst_kind_for_opcode(enum opcode opcode)
    case FS_OPCODE_FB_WRITE_LOGICAL:
       return BRW_KIND_FB_WRITE;
 
+   case SHADER_OPCODE_GET_BUFFER_SIZE:
+   case FS_OPCODE_FB_READ_LOGICAL:
+   case FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD:
+   case FS_OPCODE_VARYING_PULL_CONSTANT_LOAD_LOGICAL:
+   case SHADER_OPCODE_BTD_SPAWN_LOGICAL:
+   case SHADER_OPCODE_BTD_RETIRE_LOGICAL:
+   case RT_OPCODE_TRACE_RAY_LOGICAL:
+   case FS_OPCODE_INTERPOLATE_AT_SAMPLE:
+   case FS_OPCODE_INTERPOLATE_AT_SHARED_OFFSET:
+   case FS_OPCODE_INTERPOLATE_AT_PER_SLOT_OFFSET:
+      return BRW_KIND_LOGICAL;
+
    default:
       return BRW_KIND_BASE;
    }

src/intel/compiler/brw_inst.h

@@ -42,6 +42,7 @@ struct brw_shader;
 enum ENUM_PACKED brw_inst_kind {
    BRW_KIND_BASE,
    BRW_KIND_SEND,
+   BRW_KIND_LOGICAL,
    BRW_KIND_TEX,
    BRW_KIND_MEM,
    BRW_KIND_DPAS,

src/intel/compiler/brw_opt_cse.cpp

@@ -476,6 +476,7 @@ hash_inst(const void *v)
       break;
    }
 
+   case BRW_KIND_LOGICAL:
    case BRW_KIND_BASE:
       /* Nothing else to do. */
       break;