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Issue 1131783003: Embedded constant pools. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Fix debug-mode Arm issue. Created 5 years, 6 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #if V8_TARGET_ARCH_ARM 7 #if V8_TARGET_ARCH_ARM
8 8
9 #include "src/base/bits.h" 9 #include "src/base/bits.h"
10 #include "src/bootstrapper.h" 10 #include "src/bootstrapper.h"
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1093 // the context will be set to (cp == 0) for non-JS frames. 1093 // the context will be set to (cp == 0) for non-JS frames.
1094 __ cmp(cp, Operand(0)); 1094 __ cmp(cp, Operand(0));
1095 __ str(cp, MemOperand(fp, StandardFrameConstants::kContextOffset), ne); 1095 __ str(cp, MemOperand(fp, StandardFrameConstants::kContextOffset), ne);
1096 1096
1097 // Compute the handler entry address and jump to it. 1097 // Compute the handler entry address and jump to it.
1098 ConstantPoolUnavailableScope constant_pool_unavailable(masm); 1098 ConstantPoolUnavailableScope constant_pool_unavailable(masm);
1099 __ mov(r1, Operand(pending_handler_code_address)); 1099 __ mov(r1, Operand(pending_handler_code_address));
1100 __ ldr(r1, MemOperand(r1)); 1100 __ ldr(r1, MemOperand(r1));
1101 __ mov(r2, Operand(pending_handler_offset_address)); 1101 __ mov(r2, Operand(pending_handler_offset_address));
1102 __ ldr(r2, MemOperand(r2)); 1102 __ ldr(r2, MemOperand(r2));
1103 if (FLAG_enable_ool_constant_pool) { 1103 if (FLAG_enable_embedded_constant_pool) {
1104 __ ldr(pp, FieldMemOperand(r1, Code::kConstantPoolOffset)); 1104 __ LoadConstantPoolPointerRegisterFromCodeTargetAddress(r1);
1105 } 1105 }
1106 __ add(r1, r1, Operand(Code::kHeaderSize - kHeapObjectTag)); 1106 __ add(r1, r1, Operand(Code::kHeaderSize - kHeapObjectTag));
1107 __ add(pc, r1, r2); 1107 __ add(pc, r1, r2);
1108 } 1108 }
1109 1109
1110 1110
1111 void JSEntryStub::Generate(MacroAssembler* masm) { 1111 void JSEntryStub::Generate(MacroAssembler* masm) {
1112 // r0: code entry 1112 // r0: code entry
1113 // r1: function 1113 // r1: function
1114 // r2: receiver 1114 // r2: receiver
(...skipping 26 matching lines...) Expand all
1141 offset_to_argv += kNumDoubleCalleeSaved * kDoubleSize; 1141 offset_to_argv += kNumDoubleCalleeSaved * kDoubleSize;
1142 __ ldr(r4, MemOperand(sp, offset_to_argv)); 1142 __ ldr(r4, MemOperand(sp, offset_to_argv));
1143 1143
1144 // Push a frame with special values setup to mark it as an entry frame. 1144 // Push a frame with special values setup to mark it as an entry frame.
1145 // r0: code entry 1145 // r0: code entry
1146 // r1: function 1146 // r1: function
1147 // r2: receiver 1147 // r2: receiver
1148 // r3: argc 1148 // r3: argc
1149 // r4: argv 1149 // r4: argv
1150 int marker = type(); 1150 int marker = type();
1151 if (FLAG_enable_ool_constant_pool) { 1151 if (FLAG_enable_embedded_constant_pool) {
1152 __ mov(r8, Operand(isolate()->factory()->empty_constant_pool_array())); 1152 __ mov(r8, Operand::Zero());
1153 } 1153 }
1154 __ mov(r7, Operand(Smi::FromInt(marker))); 1154 __ mov(r7, Operand(Smi::FromInt(marker)));
1155 __ mov(r6, Operand(Smi::FromInt(marker))); 1155 __ mov(r6, Operand(Smi::FromInt(marker)));
1156 __ mov(r5, 1156 __ mov(r5,
1157 Operand(ExternalReference(Isolate::kCEntryFPAddress, isolate()))); 1157 Operand(ExternalReference(Isolate::kCEntryFPAddress, isolate())));
1158 __ ldr(r5, MemOperand(r5)); 1158 __ ldr(r5, MemOperand(r5));
1159 __ mov(ip, Operand(-1)); // Push a bad frame pointer to fail if it is used. 1159 __ mov(ip, Operand(-1)); // Push a bad frame pointer to fail if it is used.
1160 __ stm(db_w, sp, r5.bit() | r6.bit() | r7.bit() | 1160 __ stm(db_w, sp, r5.bit() | r6.bit() | r7.bit() |
1161 (FLAG_enable_ool_constant_pool ? r8.bit() : 0) | 1161 (FLAG_enable_embedded_constant_pool ? r8.bit() : 0) |
1162 ip.bit()); 1162 ip.bit());
1163 1163
1164 // Set up frame pointer for the frame to be pushed. 1164 // Set up frame pointer for the frame to be pushed.
1165 __ add(fp, sp, Operand(-EntryFrameConstants::kCallerFPOffset)); 1165 __ add(fp, sp, Operand(-EntryFrameConstants::kCallerFPOffset));
1166 1166
1167 // If this is the outermost JS call, set js_entry_sp value. 1167 // If this is the outermost JS call, set js_entry_sp value.
1168 Label non_outermost_js; 1168 Label non_outermost_js;
1169 ExternalReference js_entry_sp(Isolate::kJSEntrySPAddress, isolate()); 1169 ExternalReference js_entry_sp(Isolate::kJSEntrySPAddress, isolate());
1170 __ mov(r5, Operand(ExternalReference(js_entry_sp))); 1170 __ mov(r5, Operand(ExternalReference(js_entry_sp)));
1171 __ ldr(r6, MemOperand(r5)); 1171 __ ldr(r6, MemOperand(r5));
1172 __ cmp(r6, Operand::Zero()); 1172 __ cmp(r6, Operand::Zero());
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5359 MemOperand(fp, 6 * kPointerSize), NULL); 5359 MemOperand(fp, 6 * kPointerSize), NULL);
5360 } 5360 }
5361 5361
5362 5362
5363 #undef __ 5363 #undef __
5364 5364
5365 } // namespace internal 5365 } // namespace internal
5366 } // namespace v8 5366 } // namespace v8
5367 5367
5368 #endif // V8_TARGET_ARCH_ARM 5368 #endif // V8_TARGET_ARCH_ARM
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