--- old/src/hotspot/cpu/sparc/assembler_sparc.cpp 2020-05-01 02:28:28.050968074 -0700 +++ /dev/null 2020-03-09 18:57:19.455001459 -0700 @@ -1,61 +0,0 @@ -/* - * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - * - */ - -#include "precompiled.hpp" -#include "asm/assembler.hpp" -#include "asm/assembler.inline.hpp" - -#include "assembler_sparc.hpp" - -int AbstractAssembler::code_fill_byte() { - return 0x00; // illegal instruction 0x00000000 -} - -#ifdef VALIDATE_PIPELINE -/* Walk over the current code section and verify that there are no obvious - * pipeline hazards exposed in the code generated. - */ -void Assembler::validate_no_pipeline_hazards() { - const CodeSection* csect = code_section(); - - address addr0 = csect->start(); - address addrN = csect->end(); - uint32_t prev = 0; - - assert((addrN - addr0) % BytesPerInstWord == 0, "must be"); - - for (address pc = addr0; pc != addrN; pc += BytesPerInstWord) { - uint32_t insn = *reinterpret_cast(pc); - - // 1. General case: No CTI immediately after other CTI - assert(!(is_cti(prev) && is_cti(insn)), "CTI-CTI not allowed."); - - // 2. Special case: No CTI immediately after/before RDPC - assert(!(is_cti(prev) && is_rdpc(insn)), "CTI-RDPC not allowed."); - assert(!(is_rdpc(prev) && is_cti(insn)), "RDPC-CTI not allowed."); - - prev = insn; - } -} -#endif