+ if (instr->opcode == aco_opcode::v_interp_p1ll_f16 ||
+ instr->opcode == aco_opcode::v_interp_p1lv_f16 ||
+ instr->opcode == aco_opcode::v_interp_p2_legacy_f16 ||
+ instr->opcode == aco_opcode::v_interp_p2_f16) {
+ if (ctx.chip_class == GFX8 || ctx.chip_class == GFX9) {
+ encoding = (0b110100 << 26);
+ } else if (ctx.chip_class == GFX10) {
+ encoding = (0b110101 << 26);
+ } else {
+ unreachable("Unknown chip_class.");
+ }
+
+ encoding |= opcode << 16;
+ encoding |= (0xFF & instr->definitions[0].physReg());
+ out.push_back(encoding);
+
+ encoding = 0;
+ encoding |= interp->attribute;
+ encoding |= interp->component << 6;
+ encoding |= instr->operands[0].physReg() << 9;
+ if (instr->opcode == aco_opcode::v_interp_p2_f16 ||
+ instr->opcode == aco_opcode::v_interp_p2_legacy_f16 ||
+ instr->opcode == aco_opcode::v_interp_p1lv_f16) {
+ encoding |= instr->operands[2].physReg() << 18;
+ }
+ out.push_back(encoding);