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src/share/vm/c1/c1_Runtime1.hpp@46f6f063b272 (annotated)

src/share/vm/c1/c1_Runtime1.hpp

Thu, 21 Mar 2013 09:27:54 +0100

author
roland
date
Thu, 21 Mar 2013 09:27:54 +0100
changeset 4860
46f6f063b272
parent 4037
da91efe96a93
child 5628
f98f5d48f511
permissions
-rw-r--r--

7153771: array bound check elimination for c1
Summary: when possible optimize out array bound checks, inserting predicates when needed.
Reviewed-by: never, kvn, twisti
Contributed-by: thomaswue <thomas.wuerthinger@oracle.com>

duke@435 1 /*
coleenp@4037 2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
stefank@2314 25 #ifndef SHARE_VM_C1_C1_RUNTIME1_HPP
stefank@2314 26 #define SHARE_VM_C1_C1_RUNTIME1_HPP
stefank@2314 27
stefank@2314 28 #include "c1/c1_FrameMap.hpp"
stefank@2314 29 #include "code/stubs.hpp"
stefank@2314 30 #include "interpreter/interpreter.hpp"
stefank@2314 31 #include "memory/allocation.hpp"
stefank@2314 32 #include "runtime/deoptimization.hpp"
stefank@2314 33
duke@435 34 class StubAssembler;
duke@435 35
duke@435 36 // The Runtime1 holds all assembly stubs and VM
duke@435 37 // runtime routines needed by code code generated
duke@435 38 // by the Compiler1.
duke@435 39
duke@435 40 #define RUNTIME1_STUBS(stub, last_entry) \
duke@435 41 stub(dtrace_object_alloc) \
duke@435 42 stub(unwind_exception) \
duke@435 43 stub(forward_exception) \
duke@435 44 stub(throw_range_check_failed) /* throws ArrayIndexOutOfBoundsException */ \
duke@435 45 stub(throw_index_exception) /* throws IndexOutOfBoundsException */ \
duke@435 46 stub(throw_div0_exception) \
duke@435 47 stub(throw_null_pointer_exception) \
duke@435 48 stub(register_finalizer) \
duke@435 49 stub(new_instance) \
duke@435 50 stub(fast_new_instance) \
duke@435 51 stub(fast_new_instance_init_check) \
duke@435 52 stub(new_type_array) \
duke@435 53 stub(new_object_array) \
duke@435 54 stub(new_multi_array) \
duke@435 55 stub(handle_exception_nofpu) /* optimized version that does not preserve fpu registers */ \
duke@435 56 stub(handle_exception) \
twisti@2603 57 stub(handle_exception_from_callee) \
duke@435 58 stub(throw_array_store_exception) \
duke@435 59 stub(throw_class_cast_exception) \
duke@435 60 stub(throw_incompatible_class_change_error) \
duke@435 61 stub(slow_subtype_check) \
duke@435 62 stub(monitorenter) \
duke@435 63 stub(monitorenter_nofpu) /* optimized version that does not preserve fpu registers */ \
duke@435 64 stub(monitorexit) \
duke@435 65 stub(monitorexit_nofpu) /* optimized version that does not preserve fpu registers */ \
twisti@3244 66 stub(deoptimize) \
duke@435 67 stub(access_field_patching) \
duke@435 68 stub(load_klass_patching) \
coleenp@4037 69 stub(load_mirror_patching) \
ysr@777 70 stub(g1_pre_barrier_slow) \
ysr@777 71 stub(g1_post_barrier_slow) \
duke@435 72 stub(fpu2long_stub) \
duke@435 73 stub(counter_overflow) \
roland@4860 74 stub(predicate_failed_trap) \
duke@435 75 last_entry(number_of_ids)
duke@435 76
duke@435 77 #define DECLARE_STUB_ID(x) x ## _id ,
duke@435 78 #define DECLARE_LAST_STUB_ID(x) x
duke@435 79 #define STUB_NAME(x) #x " Runtime1 stub",
duke@435 80 #define LAST_STUB_NAME(x) #x " Runtime1 stub"
duke@435 81
duke@435 82 class Runtime1: public AllStatic {
duke@435 83 friend class VMStructs;
duke@435 84 friend class ArrayCopyStub;
duke@435 85
duke@435 86 public:
duke@435 87 enum StubID {
duke@435 88 RUNTIME1_STUBS(DECLARE_STUB_ID, DECLARE_LAST_STUB_ID)
duke@435 89 };
duke@435 90
duke@435 91 // statistics
duke@435 92 #ifndef PRODUCT
duke@435 93 static int _resolve_invoke_cnt;
duke@435 94 static int _handle_wrong_method_cnt;
duke@435 95 static int _ic_miss_cnt;
duke@435 96 static int _generic_arraycopy_cnt;
duke@435 97 static int _primitive_arraycopy_cnt;
duke@435 98 static int _oop_arraycopy_cnt;
roland@2728 99 static int _generic_arraycopystub_cnt;
duke@435 100 static int _arraycopy_slowcase_cnt;
roland@2728 101 static int _arraycopy_checkcast_cnt;
roland@2728 102 static int _arraycopy_checkcast_attempt_cnt;
duke@435 103 static int _new_type_array_slowcase_cnt;
duke@435 104 static int _new_object_array_slowcase_cnt;
duke@435 105 static int _new_instance_slowcase_cnt;
duke@435 106 static int _new_multi_array_slowcase_cnt;
duke@435 107 static int _monitorenter_slowcase_cnt;
duke@435 108 static int _monitorexit_slowcase_cnt;
duke@435 109 static int _patch_code_slowcase_cnt;
duke@435 110 static int _throw_range_check_exception_count;
duke@435 111 static int _throw_index_exception_count;
duke@435 112 static int _throw_div0_exception_count;
duke@435 113 static int _throw_null_pointer_exception_count;
duke@435 114 static int _throw_class_cast_exception_count;
duke@435 115 static int _throw_incompatible_class_change_error_count;
duke@435 116 static int _throw_array_store_exception_count;
duke@435 117 static int _throw_count;
duke@435 118 #endif
duke@435 119
duke@435 120 private:
duke@435 121 static CodeBlob* _blobs[number_of_ids];
duke@435 122 static const char* _blob_names[];
duke@435 123
duke@435 124 // stub generation
twisti@2603 125 static void generate_blob_for(BufferBlob* blob, StubID id);
twisti@2603 126 static OopMapSet* generate_code_for(StubID id, StubAssembler* sasm);
duke@435 127 static OopMapSet* generate_exception_throw(StubAssembler* sasm, address target, bool has_argument);
twisti@2603 128 static OopMapSet* generate_handle_exception(StubID id, StubAssembler* sasm);
twisti@2603 129 static void generate_unwind_exception(StubAssembler *sasm);
duke@435 130 static OopMapSet* generate_patching(StubAssembler* sasm, address target);
duke@435 131
duke@435 132 static OopMapSet* generate_stub_call(StubAssembler* sasm, Register result, address entry,
duke@435 133 Register arg1 = noreg, Register arg2 = noreg, Register arg3 = noreg);
duke@435 134
duke@435 135 // runtime entry points
coleenp@4037 136 static void new_instance (JavaThread* thread, Klass* klass);
coleenp@4037 137 static void new_type_array (JavaThread* thread, Klass* klass, jint length);
coleenp@4037 138 static void new_object_array(JavaThread* thread, Klass* klass, jint length);
coleenp@4037 139 static void new_multi_array (JavaThread* thread, Klass* klass, int rank, jint* dims);
duke@435 140
coleenp@4037 141 static address counter_overflow(JavaThread* thread, int bci, Method* method);
duke@435 142
duke@435 143 static void unimplemented_entry (JavaThread* thread, StubID id);
duke@435 144
duke@435 145 static address exception_handler_for_pc(JavaThread* thread);
duke@435 146
duke@435 147 static void throw_range_check_exception(JavaThread* thread, int index);
duke@435 148 static void throw_index_exception(JavaThread* thread, int index);
duke@435 149 static void throw_div0_exception(JavaThread* thread);
duke@435 150 static void throw_null_pointer_exception(JavaThread* thread);
never@2488 151 static void throw_class_cast_exception(JavaThread* thread, oopDesc* object);
duke@435 152 static void throw_incompatible_class_change_error(JavaThread* thread);
never@2488 153 static void throw_array_store_exception(JavaThread* thread, oopDesc* object);
duke@435 154
duke@435 155 static void monitorenter(JavaThread* thread, oopDesc* obj, BasicObjectLock* lock);
duke@435 156 static void monitorexit (JavaThread* thread, BasicObjectLock* lock);
duke@435 157
twisti@3244 158 static void deoptimize(JavaThread* thread);
twisti@3244 159
duke@435 160 static int access_field_patching(JavaThread* thread);
duke@435 161 static int move_klass_patching(JavaThread* thread);
coleenp@4037 162 static int move_mirror_patching(JavaThread* thread);
duke@435 163
duke@435 164 static void patch_code(JavaThread* thread, StubID stub_id);
duke@435 165
duke@435 166 public:
duke@435 167 // initialization
iveresov@1939 168 static void initialize(BufferBlob* blob);
duke@435 169 static void initialize_pd();
duke@435 170
duke@435 171 // stubs
duke@435 172 static CodeBlob* blob_for (StubID id);
twisti@2103 173 static address entry_for(StubID id) { return blob_for(id)->code_begin(); }
duke@435 174 static const char* name_for (StubID id);
duke@435 175 static const char* name_for_address(address entry);
duke@435 176
bobv@2036 177 // platform might add runtime names.
bobv@2036 178 static const char* pd_name_for_address(address entry);
bobv@2036 179
duke@435 180 // method tracing
duke@435 181 static void trace_block_entry(jint block_id);
duke@435 182
duke@435 183 #ifndef PRODUCT
roland@2728 184 static address throw_count_address() { return (address)&_throw_count; }
roland@2728 185 static address arraycopy_count_address(BasicType type);
duke@435 186 #endif
duke@435 187
duke@435 188 // directly accessible leaf routine
duke@435 189 static int arraycopy(oopDesc* src, int src_pos, oopDesc* dst, int dst_pos, int length);
duke@435 190 static void primitive_arraycopy(HeapWord* src, HeapWord* dst, int length);
duke@435 191 static void oop_arraycopy(HeapWord* src, HeapWord* dst, int length);
roland@3838 192 static int is_instance_of(oopDesc* mirror, oopDesc* obj);
duke@435 193
roland@4860 194 static void predicate_failed_trap(JavaThread* thread);
roland@4860 195
duke@435 196 static void print_statistics() PRODUCT_RETURN;
duke@435 197 };
stefank@2314 198
stefank@2314 199 #endif // SHARE_VM_C1_C1_RUNTIME1_HPP

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