Mercurial > hg > icedtea8-forest > hotspot
view src/share/vm/interpreter/bytecode.hpp @ 10905:f57189b7648d
8257192: Integrate AArch64 JIT port into 8u
7009641: Don't fail VM when CodeCache is full
8073108: [AArch64] Use x86 and SPARC CPU instructions for GHASH acceleration
8130309: Need to bailout cleanly if creation of stubs fails when codecache is out of space (AArch64 changes)
8131779: AARCH64: add Montgomery multiply intrinsic
8132875: AArch64: Fix error introduced into AArch64 CodeCache by commit for 8130309
8135018: AARCH64: Missing memory barriers for CMS collector
8145320: Create unsafe_arraycopy and generic_arraycopy for AArch64
8148328: aarch64: redundant lsr instructions in stub code.
8148783: aarch64: SEGV running SpecJBB2013
8148948: aarch64: generate_copy_longs calls align() incorrectly
8149080: AArch64: Recognise disjoint array copy in stub code
8149365: aarch64: memory copy does not prefetch on backwards copy
8149907: aarch64: use load/store pair instructions in call_stub
8150038: aarch64: make use of CBZ and CBNZ when comparing narrow pointer with zero
8150045: arraycopy causes segfaults in SATB during garbage collection
8150082: aarch64: optimise small array copy
8150229: aarch64: pipeline class for several instructions is not set correctly
8150313: aarch64: optimise array copy using SIMD instructions
8150394: aarch64: add support for 8.1 LSE CAS instructions
8150652: Remove unused code in AArch64 back end
8151340: aarch64: prefetch the destination word for write prior to ldxr/stxr loops.
8151502: optimize pd_disjoint_words and pd_conjoint_words
8151775: aarch64: add support for 8.1 LSE atomic operations
8152537: aarch64: Make use of CBZ and CBNZ when comparing unsigned values with zero.
8152840: aarch64: improve _unsafe_arraycopy stub routine
8153172: aarch64: hotspot crashes after the 8.1 LSE patch is merged
8153713: aarch64: improve short array clearing using store pair
8153797: aarch64: Add Arrays.fill stub code
8154413: AArch64: Better byte behaviour
8154537: AArch64: some integer rotate instructions are never emitted
8154739: AArch64: TemplateTable::fast_xaccess loads in wrong mode
8155015: Aarch64: bad assert in spill generation code
8155100: AArch64: Relax alignment requirement for byte_map_base
8155612: Aarch64: vector nodes need to support misaligned offset
8155617: aarch64: ClearArray does not use DC ZVA
8155627: Enable SA on AArch64
8155653: TestVectorUnalignedOffset.java not pushed with 8155612
8156731: aarch64: java/util/Arrays/Correct.java fails due to _generic_arraycopy stub routine
8157841: aarch64: prefetch ignores cache line size
8157906: aarch64: some more integer rotate instructions are never emitted
8158913: aarch64: SEGV running Spark terasort
8159052: aarch64: optimise unaligned copies in pd_disjoint_words and pd_conjoint_words
8159063: aarch64: optimise unaligned array copy long
8160748: [AArch64] Inconsistent types for ideal_reg
8161072: AArch64: jtreg compiler/uncommontrap/TestDeoptOOM failure
8161190: AArch64: Fix overflow in immediate cmp instruction
8164113: AArch64: follow-up the fix for 8161598
8165673: AArch64: Fix JNI floating point argument handling
8167200: AArch64: Broken stack pointer adjustment in interpreter
8167421: AArch64: in one core system, fatal error: Illegal threadstate encountered
8167595: AArch64: SEGV in stub code cipherBlockChaining_decryptAESCrypt
8168699: Validate special case invocations [AArch64 support]
8168888: Port 8160591: Improve internal array handling to AArch64.
8170100: AArch64: Crash in C1-compiled code accessing References
8170188: jtreg test compiler/types/TestMeetIncompatibleInterfaceArrays.java causes JVM crash
8170873: PPC64/aarch64: Poor StrictMath performance due to non-optimized compilation
8171537: aarch64: compiler/c1/Test6849574.java generates guarantee failure in C1
8172881: AArch64: assertion failure: the int pressure is incorrect
8173472: AArch64: C1 comparisons with null only use 32-bit instructions
8176100: [AArch64] [REDO][REDO] G1 Needs pre barrier on dereference of weak JNI handles
8177661: Correct ad rule output register types from iRegX to iRegXNoSp
8179954: AArch64: C1 and C2 volatile accesses are not sequentially consistent
8182581: aarch64: fix for crash caused by earlyret of compiled method
8183925: [AArch64] Decouple crash protection from watcher thread
8186325: AArch64: jtreg test hotspot/test/gc/g1/TestJNIWeakG1/TestJNIWeakG1.java SEGV
8187224: aarch64: some inconsistency between aarch64_ad.m4 and aarch64.ad
8189170: [AArch64] Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
8193133: Assertion failure because 0xDEADDEAD can be in-heap
8195685: AArch64 port of 8174962: Better interface invocations
8195859: AArch64: vtableStubs gtest fails after 8174962
8196136: AArch64: Correct register use in patch for JDK-8194686
8196221: AArch64: Mistake in committed patch for JDK-8195859
8199712: [AArch64] Flight Recorder
8203481: Incorrect constraint for unextended_sp in frame:safe_for_sender
8203699: java/lang/invoke/SpecialInterfaceCall fails with SIGILL on aarch64
8205421: AARCH64: StubCodeMark should be placed after alignment
8206163: AArch64: incorrect code generation for StoreCM
8207345: Trampoline generation code reads from uninitialized memory
8207838: AArch64: Float registers incorrectly restored in JNI call
8209413: AArch64: NPE in clhsdb jstack command
8209414: [AArch64] method handle invocation does not respect JVMTI interp_only mode
8209415: Fix JVMTI test failure HS202
8209420: Track membars for volatile accesses so they can be properly optimized
8209835: Aarch64: elide barriers on all volatile operations
8210425: [AArch64] sharedRuntimeTrig/sharedRuntimeTrans compiled without optimization
8211064: [AArch64] Interpreter and c1 don't correctly handle jboolean results in native calls
8211233: MemBarNode::trailing_membar() and MemBarNode::leading_membar() need to handle dying subgraphs better
8213134: AArch64: vector shift failed with MaxVectorSize=8
8213419: [AArch64] C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
8214857: "bad trailing membar" assert failure at memnode.cpp:3220
8215951: AArch64: jtreg test vmTestbase/nsk/jvmti/PopFrame/popframe005 segfaults
8215961: jdk/jfr/event/os/TestCPUInformation.java fails on AArch64
8216350: AArch64: monitor unlock fast path not called
8216989: CardTableBarrierSetAssembler::gen_write_ref_array_post_barrier() does not check for zero length on AARCH64
8217368: AArch64: C2 recursive stack locking optimisation not triggered
8218185: aarch64: missing LoadStore barrier in TemplateTable::putfield_or_static
8219011: Implement MacroAssembler::warn method on AArch64
8219635: aarch64: missing LoadStore barrier in TemplateTable::fast_storefield
8221220: AArch64: Add StoreStore membar explicitly for Volatile Writes in TemplateTable
8221658: aarch64: add necessary predicate for ubfx patterns
8224671: AArch64: mauve System.arraycopy test failure
8224828: aarch64: rflags is not correct after safepoint poll
8224851: AArch64: fix warnings and errors with Clang and GCC 8.3
8224880: AArch64: java/javac error with AllocatePrefetchDistance
8228400: Remove built-in AArch64 simulator
8228406: Superfluous change in chaitin.hpp
8228593: Revert explicit JDK 7 support additions
8228716: Revert InstanceKlass::print_on debug additions
8228718: Revert incorrect backport of JDK-8129757 to 8-aarch64
8228725: AArch64: Purge method call format support
8228747: Revert "unused" attribute from test_arraycopy_func
8228767: Revert ResourceMark additions
8228770: Revert development hsdis changes
8229123: Revert build fixes for aarch64/zero
8229124: Revert disassembler.cpp changes
8229145: Revert TemplateTable::bytecode() visibility change
8233839: aarch64: missing memory barrier in NewObjectArrayStub and NewTypeArrayStub
8237512: AArch64: aarch64TestHook leaks a BufferBlob
8246482: Build failures with +JFR -PCH
8247979: aarch64: missing side effect of killing flags for clearArray_reg_reg
8248219: aarch64: missing memory barrier in fast_storefield and fast_accessfield
Reviewed-by: shade, aph
author | andrew |
---|---|
date | Mon, 01 Feb 2021 03:48:36 +0000 |
parents | da91efe96a93 |
children | f79e943d15a7 |
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/* * 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. * */ #ifndef SHARE_VM_INTERPRETER_BYTECODE_HPP #define SHARE_VM_INTERPRETER_BYTECODE_HPP #include "interpreter/bytecodes.hpp" #include "memory/allocation.hpp" #include "oops/method.hpp" #ifdef TARGET_ARCH_x86 # include "bytes_x86.hpp" #endif #ifdef TARGET_ARCH_aarch64 # include "bytes_aarch64.hpp" #endif #ifdef TARGET_ARCH_sparc # include "bytes_sparc.hpp" #endif #ifdef TARGET_ARCH_zero # include "bytes_zero.hpp" #endif #ifdef TARGET_ARCH_arm # include "bytes_arm.hpp" #endif #ifdef TARGET_ARCH_ppc # include "bytes_ppc.hpp" #endif class ciBytecodeStream; // The base class for different kinds of bytecode abstractions. // Provides the primitive operations to manipulate code relative // to the bcp. class Bytecode: public StackObj { protected: const address _bcp; const Bytecodes::Code _code; // Address computation address addr_at (int offset) const { return (address)_bcp + offset; } u_char byte_at(int offset) const { return *addr_at(offset); } address aligned_addr_at (int offset) const { return (address)round_to((intptr_t)addr_at(offset), jintSize); } int aligned_offset (int offset) const { return aligned_addr_at(offset) - addr_at(0); } // Word access: int get_Java_u2_at (int offset) const { return Bytes::get_Java_u2(addr_at(offset)); } int get_Java_u4_at (int offset) const { return Bytes::get_Java_u4(addr_at(offset)); } int get_native_u2_at (int offset) const { return Bytes::get_native_u2(addr_at(offset)); } int get_native_u4_at (int offset) const { return Bytes::get_native_u4(addr_at(offset)); } public: Bytecode(Method* method, address bcp): _bcp(bcp), _code(Bytecodes::code_at(method, addr_at(0))) { assert(method != NULL, "this form requires a valid Method*"); } // Defined in ciStreams.hpp inline Bytecode(const ciBytecodeStream* stream, address bcp = NULL); // Attributes address bcp() const { return _bcp; } int instruction_size() const { return Bytecodes::length_for_code_at(_code, bcp()); } Bytecodes::Code code() const { return _code; } Bytecodes::Code java_code() const { return Bytecodes::java_code(code()); } Bytecodes::Code invoke_code() const { return (code() == Bytecodes::_invokehandle) ? code() : java_code(); } // Static functions for parsing bytecodes in place. int get_index_u1(Bytecodes::Code bc) const { assert_same_format_as(bc); assert_index_size(1, bc); return *(jubyte*)addr_at(1); } int get_index_u2(Bytecodes::Code bc, bool is_wide = false) const { assert_same_format_as(bc, is_wide); assert_index_size(2, bc, is_wide); address p = addr_at(is_wide ? 2 : 1); if (can_use_native_byte_order(bc, is_wide)) return Bytes::get_native_u2(p); else return Bytes::get_Java_u2(p); } int get_index_u1_cpcache(Bytecodes::Code bc) const { assert_same_format_as(bc); assert_index_size(1, bc); return *(jubyte*)addr_at(1) + ConstantPool::CPCACHE_INDEX_TAG; } int get_index_u2_cpcache(Bytecodes::Code bc) const { assert_same_format_as(bc); assert_index_size(2, bc); assert_native_index(bc); return Bytes::get_native_u2(addr_at(1)) + ConstantPool::CPCACHE_INDEX_TAG; } int get_index_u4(Bytecodes::Code bc) const { assert_same_format_as(bc); assert_index_size(4, bc); assert(can_use_native_byte_order(bc), ""); return Bytes::get_native_u4(addr_at(1)); } bool has_index_u4(Bytecodes::Code bc) const { return bc == Bytecodes::_invokedynamic; } int get_offset_s2(Bytecodes::Code bc) const { assert_same_format_as(bc); assert_offset_size(2, bc); return (jshort) Bytes::get_Java_u2(addr_at(1)); } int get_offset_s4(Bytecodes::Code bc) const { assert_same_format_as(bc); assert_offset_size(4, bc); return (jint) Bytes::get_Java_u4(addr_at(1)); } int get_constant_u1(int offset, Bytecodes::Code bc) const { assert_same_format_as(bc); assert_constant_size(1, offset, bc); return *(jbyte*)addr_at(offset); } int get_constant_u2(int offset, Bytecodes::Code bc, bool is_wide = false) const { assert_same_format_as(bc, is_wide); assert_constant_size(2, offset, bc, is_wide); return (jshort) Bytes::get_Java_u2(addr_at(offset)); } // These are used locally and also from bytecode streams. void assert_same_format_as(Bytecodes::Code testbc, bool is_wide = false) const NOT_DEBUG_RETURN; static void assert_index_size(int required_size, Bytecodes::Code bc, bool is_wide = false) NOT_DEBUG_RETURN; static void assert_offset_size(int required_size, Bytecodes::Code bc, bool is_wide = false) NOT_DEBUG_RETURN; static void assert_constant_size(int required_size, int where, Bytecodes::Code bc, bool is_wide = false) NOT_DEBUG_RETURN; static void assert_native_index(Bytecodes::Code bc, bool is_wide = false) NOT_DEBUG_RETURN; static bool can_use_native_byte_order(Bytecodes::Code bc, bool is_wide = false) { return (!Bytes::is_Java_byte_ordering_different() || Bytecodes::native_byte_order(bc /*, is_wide*/)); } }; // Abstractions for lookupswitch bytecode class LookupswitchPair VALUE_OBJ_CLASS_SPEC { private: const address _bcp; address addr_at (int offset) const { return _bcp + offset; } int get_Java_u4_at (int offset) const { return Bytes::get_Java_u4(addr_at(offset)); } public: LookupswitchPair(address bcp): _bcp(bcp) {} int match() const { return get_Java_u4_at(0 * jintSize); } int offset() const { return get_Java_u4_at(1 * jintSize); } }; class Bytecode_lookupswitch: public Bytecode { public: Bytecode_lookupswitch(Method* method, address bcp): Bytecode(method, bcp) { verify(); } // Defined in ciStreams.hpp inline Bytecode_lookupswitch(const ciBytecodeStream* stream); void verify() const PRODUCT_RETURN; // Attributes int default_offset() const { return get_Java_u4_at(aligned_offset(1 + 0*jintSize)); } int number_of_pairs() const { return get_Java_u4_at(aligned_offset(1 + 1*jintSize)); } LookupswitchPair pair_at(int i) const { assert(0 <= i && i < number_of_pairs(), "pair index out of bounds"); return LookupswitchPair(aligned_addr_at(1 + (1 + i)*2*jintSize)); } }; class Bytecode_tableswitch: public Bytecode { public: Bytecode_tableswitch(Method* method, address bcp): Bytecode(method, bcp) { verify(); } // Defined in ciStreams.hpp inline Bytecode_tableswitch(const ciBytecodeStream* stream); void verify() const PRODUCT_RETURN; // Attributes int default_offset() const { return get_Java_u4_at(aligned_offset(1 + 0*jintSize)); } int low_key() const { return get_Java_u4_at(aligned_offset(1 + 1*jintSize)); } int high_key() const { return get_Java_u4_at(aligned_offset(1 + 2*jintSize)); } int dest_offset_at(int i) const; int length() { return high_key()-low_key()+1; } }; // Common code for decoding invokes and field references. class Bytecode_member_ref: public Bytecode { protected: const methodHandle _method; // method containing the bytecode Bytecode_member_ref(methodHandle method, int bci) : Bytecode(method(), method()->bcp_from(bci)), _method(method) {} methodHandle method() const { return _method; } ConstantPool* constants() const { return _method->constants(); } ConstantPoolCache* cpcache() const { return _method->constants()->cache(); } ConstantPoolCacheEntry* cpcache_entry() const; public: int index() const; // cache index (loaded from instruction) int pool_index() const; // constant pool index Symbol* klass() const; // returns the klass of the method or field Symbol* name() const; // returns the name of the method or field Symbol* signature() const; // returns the signature of the method or field BasicType result_type() const; // returns the result type of the getfield or invoke }; // Abstraction for invoke_{virtual, static, interface, special} class Bytecode_invoke: public Bytecode_member_ref { protected: // Constructor that skips verification Bytecode_invoke(methodHandle method, int bci, bool unused) : Bytecode_member_ref(method, bci) {} public: Bytecode_invoke(methodHandle method, int bci) : Bytecode_member_ref(method, bci) { verify(); } void verify() const; // Attributes methodHandle static_target(TRAPS); // "specified" method (from constant pool) Handle appendix(TRAPS); // if CPCE::has_appendix (from constant pool) // Testers bool is_invokeinterface() const { return invoke_code() == Bytecodes::_invokeinterface; } bool is_invokevirtual() const { return invoke_code() == Bytecodes::_invokevirtual; } bool is_invokestatic() const { return invoke_code() == Bytecodes::_invokestatic; } bool is_invokespecial() const { return invoke_code() == Bytecodes::_invokespecial; } bool is_invokedynamic() const { return invoke_code() == Bytecodes::_invokedynamic; } bool is_invokehandle() const { return invoke_code() == Bytecodes::_invokehandle; } bool has_receiver() const { return !is_invokestatic() && !is_invokedynamic(); } bool is_valid() const { return is_invokeinterface() || is_invokevirtual() || is_invokestatic() || is_invokespecial() || is_invokedynamic() || is_invokehandle(); } bool has_appendix() { return cpcache_entry()->has_appendix(); } private: // Helper to skip verification. Used is_valid() to check if the result is really an invoke inline friend Bytecode_invoke Bytecode_invoke_check(methodHandle method, int bci); }; inline Bytecode_invoke Bytecode_invoke_check(methodHandle method, int bci) { return Bytecode_invoke(method, bci, false); } // Abstraction for all field accesses (put/get field/static) class Bytecode_field: public Bytecode_member_ref { public: Bytecode_field(methodHandle method, int bci) : Bytecode_member_ref(method, bci) { verify(); } // Testers bool is_getfield() const { return java_code() == Bytecodes::_getfield; } bool is_putfield() const { return java_code() == Bytecodes::_putfield; } bool is_getstatic() const { return java_code() == Bytecodes::_getstatic; } bool is_putstatic() const { return java_code() == Bytecodes::_putstatic; } bool is_getter() const { return is_getfield() || is_getstatic(); } bool is_static() const { return is_getstatic() || is_putstatic(); } bool is_valid() const { return is_getfield() || is_putfield() || is_getstatic() || is_putstatic(); } void verify() const; }; // Abstraction for checkcast class Bytecode_checkcast: public Bytecode { public: Bytecode_checkcast(Method* method, address bcp): Bytecode(method, bcp) { verify(); } void verify() const { assert(Bytecodes::java_code(code()) == Bytecodes::_checkcast, "check checkcast"); } // Returns index long index() const { return get_index_u2(Bytecodes::_checkcast); }; }; // Abstraction for instanceof class Bytecode_instanceof: public Bytecode { public: Bytecode_instanceof(Method* method, address bcp): Bytecode(method, bcp) { verify(); } void verify() const { assert(code() == Bytecodes::_instanceof, "check instanceof"); } // Returns index long index() const { return get_index_u2(Bytecodes::_instanceof); }; }; class Bytecode_new: public Bytecode { public: Bytecode_new(Method* method, address bcp): Bytecode(method, bcp) { verify(); } void verify() const { assert(java_code() == Bytecodes::_new, "check new"); } // Returns index long index() const { return get_index_u2(Bytecodes::_new); }; }; class Bytecode_multianewarray: public Bytecode { public: Bytecode_multianewarray(Method* method, address bcp): Bytecode(method, bcp) { verify(); } void verify() const { assert(java_code() == Bytecodes::_multianewarray, "check new"); } // Returns index long index() const { return get_index_u2(Bytecodes::_multianewarray); }; }; class Bytecode_anewarray: public Bytecode { public: Bytecode_anewarray(Method* method, address bcp): Bytecode(method, bcp) { verify(); } void verify() const { assert(java_code() == Bytecodes::_anewarray, "check anewarray"); } // Returns index long index() const { return get_index_u2(Bytecodes::_anewarray); }; }; // Abstraction for ldc, ldc_w and ldc2_w class Bytecode_loadconstant: public Bytecode { private: const methodHandle _method; int raw_index() const; public: Bytecode_loadconstant(methodHandle method, int bci): Bytecode(method(), method->bcp_from(bci)), _method(method) { verify(); } void verify() const { assert(_method.not_null(), "must supply method"); Bytecodes::Code stdc = Bytecodes::java_code(code()); assert(stdc == Bytecodes::_ldc || stdc == Bytecodes::_ldc_w || stdc == Bytecodes::_ldc2_w, "load constant"); } // Only non-standard bytecodes (fast_aldc) have reference cache indexes. bool has_cache_index() const { return code() >= Bytecodes::number_of_java_codes; } int pool_index() const; // index into constant pool int cache_index() const { // index into reference cache (or -1 if none) return has_cache_index() ? raw_index() : -1; } BasicType result_type() const; // returns the result type of the ldc oop resolve_constant(TRAPS) const; }; #endif // SHARE_VM_INTERPRETER_BYTECODE_HPP