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Side by Side Diff: src/compiler/linkage.h

Issue 1696043002: [runtime] Unify and simplify how frames are marked (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Tweaks Created 4 years, 10 months ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 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 #ifndef V8_COMPILER_LINKAGE_H_ 5 #ifndef V8_COMPILER_LINKAGE_H_
6 #define V8_COMPILER_LINKAGE_H_ 6 #define V8_COMPILER_LINKAGE_H_
7 7
8 #include "src/base/flags.h" 8 #include "src/base/flags.h"
9 #include "src/compiler/frame.h" 9 #include "src/compiler/frame.h"
10 #include "src/compiler/operator.h" 10 #include "src/compiler/operator.h"
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69 kPointerSize); 69 kPointerSize);
70 } 70 }
71 71
72 static LinkageLocation ForSavedCallerConstantPool() { 72 static LinkageLocation ForSavedCallerConstantPool() {
73 DCHECK(V8_EMBEDDED_CONSTANT_POOL); 73 DCHECK(V8_EMBEDDED_CONSTANT_POOL);
74 return ForCalleeFrameSlot((StandardFrameConstants::kCallerPCOffset - 74 return ForCalleeFrameSlot((StandardFrameConstants::kCallerPCOffset -
75 StandardFrameConstants::kConstantPoolOffset) / 75 StandardFrameConstants::kConstantPoolOffset) /
76 kPointerSize); 76 kPointerSize);
77 } 77 }
78 78
79 static LinkageLocation ForSavedCallerMarker() { 79 static LinkageLocation ForSavedCallerFunction() {
80 return ForCalleeFrameSlot((StandardFrameConstants::kCallerPCOffset - 80 return ForCalleeFrameSlot((StandardFrameConstants::kCallerPCOffset -
81 StandardFrameConstants::kMarkerOffset) / 81 StandardFrameConstants::kFunctionOffset) /
82 kPointerSize); 82 kPointerSize);
83 } 83 }
84 84
85 static LinkageLocation ConvertToTailCallerLocation( 85 static LinkageLocation ConvertToTailCallerLocation(
86 LinkageLocation caller_location, int stack_param_delta) { 86 LinkageLocation caller_location, int stack_param_delta) {
87 if (!caller_location.IsRegister()) { 87 if (!caller_location.IsRegister()) {
88 return LinkageLocation(STACK_SLOT, 88 return LinkageLocation(STACK_SLOT,
89 caller_location.GetLocation() - stack_param_delta); 89 caller_location.GetLocation() - stack_param_delta);
90 } 90 }
91 return caller_location; 91 return caller_location;
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157 kHasExceptionHandler = 1u << 3, 157 kHasExceptionHandler = 1u << 3,
158 kHasLocalCatchHandler = 1u << 4, 158 kHasLocalCatchHandler = 1u << 4,
159 kSupportsTailCalls = 1u << 5, 159 kSupportsTailCalls = 1u << 5,
160 kCanUseRoots = 1u << 6, 160 kCanUseRoots = 1u << 6,
161 // (arm64 only) native stack should be used for arguments. 161 // (arm64 only) native stack should be used for arguments.
162 kUseNativeStack = 1u << 7, 162 kUseNativeStack = 1u << 7,
163 // (arm64 only) call instruction has to restore JSSP. 163 // (arm64 only) call instruction has to restore JSSP.
164 kRestoreJSSP = 1u << 8, 164 kRestoreJSSP = 1u << 8,
165 // Causes the code generator to initialize the root register. 165 // Causes the code generator to initialize the root register.
166 kInitializeRootRegister = 1u << 9, 166 kInitializeRootRegister = 1u << 9,
167 kHasStandardFrameHeader = 1u << 10,
167 kPatchableCallSiteWithNop = kPatchableCallSite | kNeedsNopAfterCall 168 kPatchableCallSiteWithNop = kPatchableCallSite | kNeedsNopAfterCall
168 }; 169 };
169 typedef base::Flags<Flag> Flags; 170 typedef base::Flags<Flag> Flags;
170 171
171 CallDescriptor(Kind kind, MachineType target_type, LinkageLocation target_loc, 172 CallDescriptor(Kind kind, MachineType target_type, LinkageLocation target_loc,
172 const MachineSignature* machine_sig, 173 const MachineSignature* machine_sig,
173 LocationSignature* location_sig, size_t stack_param_count, 174 LocationSignature* location_sig, size_t stack_param_count,
174 Operator::Properties properties, 175 Operator::Properties properties,
175 RegList callee_saved_registers, 176 RegList callee_saved_registers,
176 RegList callee_saved_fp_registers, Flags flags, 177 RegList callee_saved_fp_registers, Flags flags,
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392 CallDescriptor* const incoming_; 393 CallDescriptor* const incoming_;
393 394
394 DISALLOW_COPY_AND_ASSIGN(Linkage); 395 DISALLOW_COPY_AND_ASSIGN(Linkage);
395 }; 396 };
396 397
397 } // namespace compiler 398 } // namespace compiler
398 } // namespace internal 399 } // namespace internal
399 } // namespace v8 400 } // namespace v8
400 401
401 #endif // V8_COMPILER_LINKAGE_H_ 402 #endif // V8_COMPILER_LINKAGE_H_
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