d5f2ac5e33
Import base::ieee754::exp() from FreeBSD msun and introduce a Float64Exp TurboFan operator based on that, similar to what we do for Float64Log. Rewrite Math.exp() as TurboFan builtin and use that operator to also inline Math.exp() into optimized TurboFan functions. CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel BUG=v8:3266,v8:3468,v8:3493,v8:5086,v8:5108,chromium:620786 R=mvstanton@chromium.org Committed: https://crrev.com/93e26314afc9da9b5b8bd998688262444ed73260 Review-Url: https://codereview.chromium.org/2077533002 Cr-Original-Commit-Position: refs/heads/master@{#37037} Cr-Commit-Position: refs/heads/master@{#37047}
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
// Copyright 2011 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_X64_CODEGEN_X64_H_
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#define V8_X64_CODEGEN_X64_H_
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#include "src/ast/ast.h"
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#include "src/macro-assembler.h"
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namespace v8 {
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namespace internal {
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class StringCharLoadGenerator : public AllStatic {
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public:
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// Generates the code for handling different string types and loading the
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// indexed character into |result|. We expect |index| as untagged input and
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// |result| as untagged output.
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static void Generate(MacroAssembler* masm,
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Register string,
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Register index,
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Register result,
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Label* call_runtime);
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private:
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DISALLOW_COPY_AND_ASSIGN(StringCharLoadGenerator);
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};
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enum StackArgumentsAccessorReceiverMode {
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ARGUMENTS_CONTAIN_RECEIVER,
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ARGUMENTS_DONT_CONTAIN_RECEIVER
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};
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class StackArgumentsAccessor BASE_EMBEDDED {
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public:
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StackArgumentsAccessor(
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Register base_reg,
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int argument_count_immediate,
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StackArgumentsAccessorReceiverMode receiver_mode =
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ARGUMENTS_CONTAIN_RECEIVER,
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int extra_displacement_to_last_argument = 0)
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: base_reg_(base_reg),
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argument_count_reg_(no_reg),
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argument_count_immediate_(argument_count_immediate),
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receiver_mode_(receiver_mode),
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extra_displacement_to_last_argument_(
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extra_displacement_to_last_argument) { }
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StackArgumentsAccessor(
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Register base_reg,
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Register argument_count_reg,
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StackArgumentsAccessorReceiverMode receiver_mode =
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ARGUMENTS_CONTAIN_RECEIVER,
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int extra_displacement_to_last_argument = 0)
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: base_reg_(base_reg),
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argument_count_reg_(argument_count_reg),
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argument_count_immediate_(0),
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receiver_mode_(receiver_mode),
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extra_displacement_to_last_argument_(
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extra_displacement_to_last_argument) { }
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StackArgumentsAccessor(
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Register base_reg,
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const ParameterCount& parameter_count,
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StackArgumentsAccessorReceiverMode receiver_mode =
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ARGUMENTS_CONTAIN_RECEIVER,
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int extra_displacement_to_last_argument = 0)
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: base_reg_(base_reg),
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argument_count_reg_(parameter_count.is_reg() ?
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parameter_count.reg() : no_reg),
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argument_count_immediate_(parameter_count.is_immediate() ?
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parameter_count.immediate() : 0),
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receiver_mode_(receiver_mode),
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extra_displacement_to_last_argument_(
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extra_displacement_to_last_argument) { }
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Operand GetArgumentOperand(int index);
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Operand GetReceiverOperand() {
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DCHECK(receiver_mode_ == ARGUMENTS_CONTAIN_RECEIVER);
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return GetArgumentOperand(0);
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}
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private:
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const Register base_reg_;
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const Register argument_count_reg_;
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const int argument_count_immediate_;
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const StackArgumentsAccessorReceiverMode receiver_mode_;
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const int extra_displacement_to_last_argument_;
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DISALLOW_IMPLICIT_CONSTRUCTORS(StackArgumentsAccessor);
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};
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} // namespace internal
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} // namespace v8
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#endif // V8_X64_CODEGEN_X64_H_
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