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Issue 2106113002: Revert of [builtins] New frame type for exits to C++ builtins (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 5 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 #if V8_TARGET_ARCH_MIPS 5 #if V8_TARGET_ARCH_MIPS
6 6
7 #include "src/code-stubs.h" 7 #include "src/code-stubs.h"
8 #include "src/api-arguments.h" 8 #include "src/api-arguments.h"
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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939 // Move argv into the correct register. 939 // Move argv into the correct register.
940 __ mov(s1, a2); 940 __ mov(s1, a2);
941 } else { 941 } else {
942 // Compute the argv pointer in a callee-saved register. 942 // Compute the argv pointer in a callee-saved register.
943 __ Lsa(s1, sp, a0, kPointerSizeLog2); 943 __ Lsa(s1, sp, a0, kPointerSizeLog2);
944 __ Subu(s1, s1, kPointerSize); 944 __ Subu(s1, s1, kPointerSize);
945 } 945 }
946 946
947 // Enter the exit frame that transitions from JavaScript to C++. 947 // Enter the exit frame that transitions from JavaScript to C++.
948 FrameScope scope(masm, StackFrame::MANUAL); 948 FrameScope scope(masm, StackFrame::MANUAL);
949 __ EnterExitFrame(save_doubles(), 0, is_builtin_exit() 949 __ EnterExitFrame(save_doubles());
950 ? StackFrame::BUILTIN_EXIT
951 : StackFrame::EXIT);
952 950
953 // s0: number of arguments including receiver (C callee-saved) 951 // s0: number of arguments including receiver (C callee-saved)
954 // s1: pointer to first argument (C callee-saved) 952 // s1: pointer to first argument (C callee-saved)
955 // s2: pointer to builtin function (C callee-saved) 953 // s2: pointer to builtin function (C callee-saved)
956 954
957 // Prepare arguments for C routine. 955 // Prepare arguments for C routine.
958 // a0 = argc 956 // a0 = argc
959 __ mov(s0, a0); 957 __ mov(s0, a0);
960 __ mov(s2, a1); 958 __ mov(s2, a1);
961 959
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5421 kStackUnwindSpace, kInvalidStackOffset, 5419 kStackUnwindSpace, kInvalidStackOffset,
5422 return_value_operand, NULL); 5420 return_value_operand, NULL);
5423 } 5421 }
5424 5422
5425 #undef __ 5423 #undef __
5426 5424
5427 } // namespace internal 5425 } // namespace internal
5428 } // namespace v8 5426 } // namespace v8
5429 5427
5430 #endif // V8_TARGET_ARCH_MIPS 5428 #endif // V8_TARGET_ARCH_MIPS
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