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Issue 609843002: Refactor FrameAndConstantPoolScope and ConstantPoolUnavailableScope to be architecture independent (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Eliminate unreachable paths. Created 6 years, 2 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 <limits.h> // For LONG_MIN, LONG_MAX. 5 #include <limits.h> // For LONG_MIN, LONG_MAX.
6 6
7 #include "src/v8.h" 7 #include "src/v8.h"
8 8
9 #if V8_TARGET_ARCH_ARM 9 #if V8_TARGET_ARCH_ARM
10 10
(...skipping 949 matching lines...) Expand 10 before | Expand all | Expand 10 after
960 } 960 }
961 961
962 962
963 void MacroAssembler::StubPrologue() { 963 void MacroAssembler::StubPrologue() {
964 PushFixedFrame(); 964 PushFixedFrame();
965 Push(Smi::FromInt(StackFrame::STUB)); 965 Push(Smi::FromInt(StackFrame::STUB));
966 // Adjust FP to point to saved FP. 966 // Adjust FP to point to saved FP.
967 add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp)); 967 add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
968 if (FLAG_enable_ool_constant_pool) { 968 if (FLAG_enable_ool_constant_pool) {
969 LoadConstantPoolPointerRegister(); 969 LoadConstantPoolPointerRegister();
970 set_constant_pool_available(true); 970 set_ool_constant_pool_available(true);
971 } 971 }
972 } 972 }
973 973
974 974
975 void MacroAssembler::Prologue(bool code_pre_aging) { 975 void MacroAssembler::Prologue(bool code_pre_aging) {
976 { PredictableCodeSizeScope predictible_code_size_scope( 976 { PredictableCodeSizeScope predictible_code_size_scope(
977 this, kNoCodeAgeSequenceLength); 977 this, kNoCodeAgeSequenceLength);
978 // The following three instructions must remain together and unmodified 978 // The following three instructions must remain together and unmodified
979 // for code aging to work properly. 979 // for code aging to work properly.
980 if (code_pre_aging) { 980 if (code_pre_aging) {
981 // Pre-age the code. 981 // Pre-age the code.
982 Code* stub = Code::GetPreAgedCodeAgeStub(isolate()); 982 Code* stub = Code::GetPreAgedCodeAgeStub(isolate());
983 add(r0, pc, Operand(-8)); 983 add(r0, pc, Operand(-8));
984 ldr(pc, MemOperand(pc, -4)); 984 ldr(pc, MemOperand(pc, -4));
985 emit_code_stub_address(stub); 985 emit_code_stub_address(stub);
986 } else { 986 } else {
987 PushFixedFrame(r1); 987 PushFixedFrame(r1);
988 nop(ip.code()); 988 nop(ip.code());
989 // Adjust FP to point to saved FP. 989 // Adjust FP to point to saved FP.
990 add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp)); 990 add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
991 } 991 }
992 } 992 }
993 if (FLAG_enable_ool_constant_pool) { 993 if (FLAG_enable_ool_constant_pool) {
994 LoadConstantPoolPointerRegister(); 994 LoadConstantPoolPointerRegister();
995 set_constant_pool_available(true); 995 set_ool_constant_pool_available(true);
996 } 996 }
997 } 997 }
998 998
999 999
1000 void MacroAssembler::EnterFrame(StackFrame::Type type, 1000 void MacroAssembler::EnterFrame(StackFrame::Type type,
1001 bool load_constant_pool) { 1001 bool load_constant_pool_pointer_reg) {
1002 // r0-r3: preserved 1002 // r0-r3: preserved
1003 PushFixedFrame(); 1003 PushFixedFrame();
1004 if (FLAG_enable_ool_constant_pool && load_constant_pool) { 1004 if (FLAG_enable_ool_constant_pool && load_constant_pool_pointer_reg) {
1005 LoadConstantPoolPointerRegister(); 1005 LoadConstantPoolPointerRegister();
1006 } 1006 }
1007 mov(ip, Operand(Smi::FromInt(type))); 1007 mov(ip, Operand(Smi::FromInt(type)));
1008 push(ip); 1008 push(ip);
1009 mov(ip, Operand(CodeObject())); 1009 mov(ip, Operand(CodeObject()));
1010 push(ip); 1010 push(ip);
1011 // Adjust FP to point to saved FP. 1011 // Adjust FP to point to saved FP.
1012 add(fp, sp, 1012 add(fp, sp,
1013 Operand(StandardFrameConstants::kFixedFrameSizeFromFp + kPointerSize)); 1013 Operand(StandardFrameConstants::kFixedFrameSizeFromFp + kPointerSize));
1014 } 1014 }
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4082 sub(result, result, Operand(dividend)); 4082 sub(result, result, Operand(dividend));
4083 } 4083 }
4084 if (mag.shift > 0) mov(result, Operand(result, ASR, mag.shift)); 4084 if (mag.shift > 0) mov(result, Operand(result, ASR, mag.shift));
4085 add(result, result, Operand(dividend, LSR, 31)); 4085 add(result, result, Operand(dividend, LSR, 31));
4086 } 4086 }
4087 4087
4088 4088
4089 } } // namespace v8::internal 4089 } } // namespace v8::internal
4090 4090
4091 #endif // V8_TARGET_ARCH_ARM 4091 #endif // V8_TARGET_ARCH_ARM
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