todo

src/amd/compiler/aco_register_allocation.cpp

@@ -1198,7 +1198,7 @@ get_regs_for_copies(ra_ctx& ctx, RegisterFile& reg_file,
                found = false;
                break;
             }
-            if (reg_file[j] == 0xF0000000) {
+            if (reg_file[j] == 0xF0000000) { //TODO: is this correct?
                k += 1;
                n++;
                continue;