diff options
Diffstat (limited to 'js/src/regexp/regexp-macro-assembler-tracer.cc')
| -rw-r--r-- | js/src/regexp/regexp-macro-assembler-tracer.cc | 420 |
1 files changed, 420 insertions, 0 deletions
diff --git a/js/src/regexp/regexp-macro-assembler-tracer.cc b/js/src/regexp/regexp-macro-assembler-tracer.cc new file mode 100644 index 000000000..331c57d1a --- /dev/null +++ b/js/src/regexp/regexp-macro-assembler-tracer.cc @@ -0,0 +1,420 @@ +// Copyright 2012 the V8 project authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "regexp/regexp-macro-assembler-tracer.h" + + +namespace v8 { +namespace internal { + +RegExpMacroAssemblerTracer::RegExpMacroAssemblerTracer( + Isolate* isolate, RegExpMacroAssembler* assembler) + : RegExpMacroAssembler(isolate, assembler->zone()), assembler_(assembler) { + IrregexpImplementation type = assembler->Implementation(); + DCHECK_LT(type, 9); + const char* impl_names[] = {"IA32", "ARM", "ARM64", "MIPS", "S390", + "PPC", "X64", "X87", "Bytecode"}; + PrintF("RegExpMacroAssembler%s();\n", impl_names[type]); +} + +RegExpMacroAssemblerTracer::~RegExpMacroAssemblerTracer() = default; + +void RegExpMacroAssemblerTracer::AbortedCodeGeneration() { + PrintF(" AbortedCodeGeneration\n"); + assembler_->AbortedCodeGeneration(); +} + + +// This is used for printing out debugging information. It makes an integer +// that is closely related to the address of an object. +static int LabelToInt(Label* label) { + return static_cast<int>(reinterpret_cast<intptr_t>(label)); +} + + +void RegExpMacroAssemblerTracer::Bind(Label* label) { + PrintF("label[%08x]: (Bind)\n", LabelToInt(label)); + assembler_->Bind(label); +} + + +void RegExpMacroAssemblerTracer::AdvanceCurrentPosition(int by) { + PrintF(" AdvanceCurrentPosition(by=%d);\n", by); + assembler_->AdvanceCurrentPosition(by); +} + + +void RegExpMacroAssemblerTracer::CheckGreedyLoop(Label* label) { + PrintF(" CheckGreedyLoop(label[%08x]);\n\n", LabelToInt(label)); + assembler_->CheckGreedyLoop(label); +} + + +void RegExpMacroAssemblerTracer::PopCurrentPosition() { + PrintF(" PopCurrentPosition();\n"); + assembler_->PopCurrentPosition(); +} + + +void RegExpMacroAssemblerTracer::PushCurrentPosition() { + PrintF(" PushCurrentPosition();\n"); + assembler_->PushCurrentPosition(); +} + + +void RegExpMacroAssemblerTracer::Backtrack() { + PrintF(" Backtrack();\n"); + assembler_->Backtrack(); +} + + +void RegExpMacroAssemblerTracer::GoTo(Label* label) { + PrintF(" GoTo(label[%08x]);\n\n", LabelToInt(label)); + assembler_->GoTo(label); +} + + +void RegExpMacroAssemblerTracer::PushBacktrack(Label* label) { + PrintF(" PushBacktrack(label[%08x]);\n", LabelToInt(label)); + assembler_->PushBacktrack(label); +} + + +bool RegExpMacroAssemblerTracer::Succeed() { + bool restart = assembler_->Succeed(); + PrintF(" Succeed();%s\n", restart ? " [restart for global match]" : ""); + return restart; +} + + +void RegExpMacroAssemblerTracer::Fail() { + PrintF(" Fail();"); + assembler_->Fail(); +} + + +void RegExpMacroAssemblerTracer::PopRegister(int register_index) { + PrintF(" PopRegister(register=%d);\n", register_index); + assembler_->PopRegister(register_index); +} + + +void RegExpMacroAssemblerTracer::PushRegister( + int register_index, + StackCheckFlag check_stack_limit) { + PrintF(" PushRegister(register=%d, %s);\n", + register_index, + check_stack_limit ? "check stack limit" : ""); + assembler_->PushRegister(register_index, check_stack_limit); +} + + +void RegExpMacroAssemblerTracer::AdvanceRegister(int reg, int by) { + PrintF(" AdvanceRegister(register=%d, by=%d);\n", reg, by); + assembler_->AdvanceRegister(reg, by); +} + + +void RegExpMacroAssemblerTracer::SetCurrentPositionFromEnd(int by) { + PrintF(" SetCurrentPositionFromEnd(by=%d);\n", by); + assembler_->SetCurrentPositionFromEnd(by); +} + + +void RegExpMacroAssemblerTracer::SetRegister(int register_index, int to) { + PrintF(" SetRegister(register=%d, to=%d);\n", register_index, to); + assembler_->SetRegister(register_index, to); +} + + +void RegExpMacroAssemblerTracer::WriteCurrentPositionToRegister(int reg, + int cp_offset) { + PrintF(" WriteCurrentPositionToRegister(register=%d,cp_offset=%d);\n", + reg, + cp_offset); + assembler_->WriteCurrentPositionToRegister(reg, cp_offset); +} + + +void RegExpMacroAssemblerTracer::ClearRegisters(int reg_from, int reg_to) { + PrintF(" ClearRegister(from=%d, to=%d);\n", reg_from, reg_to); + assembler_->ClearRegisters(reg_from, reg_to); +} + + +void RegExpMacroAssemblerTracer::ReadCurrentPositionFromRegister(int reg) { + PrintF(" ReadCurrentPositionFromRegister(register=%d);\n", reg); + assembler_->ReadCurrentPositionFromRegister(reg); +} + + +void RegExpMacroAssemblerTracer::WriteStackPointerToRegister(int reg) { + PrintF(" WriteStackPointerToRegister(register=%d);\n", reg); + assembler_->WriteStackPointerToRegister(reg); +} + + +void RegExpMacroAssemblerTracer::ReadStackPointerFromRegister(int reg) { + PrintF(" ReadStackPointerFromRegister(register=%d);\n", reg); + assembler_->ReadStackPointerFromRegister(reg); +} + +void RegExpMacroAssemblerTracer::LoadCurrentCharacterImpl( + int cp_offset, Label* on_end_of_input, bool check_bounds, int characters, + int eats_at_least) { + const char* check_msg = check_bounds ? "" : " (unchecked)"; + PrintF( + " LoadCurrentCharacter(cp_offset=%d, label[%08x]%s (%d chars) (eats at " + "least %d));\n", + cp_offset, LabelToInt(on_end_of_input), check_msg, characters, + eats_at_least); + assembler_->LoadCurrentCharacter(cp_offset, on_end_of_input, check_bounds, + characters, eats_at_least); +} + +class PrintablePrinter { + public: + explicit PrintablePrinter(uc16 character) : character_(character) { } + + const char* operator*() { + if (character_ >= ' ' && character_ <= '~') { + buffer_[0] = '('; + buffer_[1] = static_cast<char>(character_); + buffer_[2] = ')'; + buffer_[3] = '\0'; + } else { + buffer_[0] = '\0'; + } + return &buffer_[0]; + } + + private: + uc16 character_; + char buffer_[4]; +}; + + +void RegExpMacroAssemblerTracer::CheckCharacterLT(uc16 limit, Label* on_less) { + PrintablePrinter printable(limit); + PrintF(" CheckCharacterLT(c=0x%04x%s, label[%08x]);\n", + limit, + *printable, + LabelToInt(on_less)); + assembler_->CheckCharacterLT(limit, on_less); +} + + +void RegExpMacroAssemblerTracer::CheckCharacterGT(uc16 limit, + Label* on_greater) { + PrintablePrinter printable(limit); + PrintF(" CheckCharacterGT(c=0x%04x%s, label[%08x]);\n", + limit, + *printable, + LabelToInt(on_greater)); + assembler_->CheckCharacterGT(limit, on_greater); +} + + +void RegExpMacroAssemblerTracer::CheckCharacter(unsigned c, Label* on_equal) { + PrintablePrinter printable(c); + PrintF(" CheckCharacter(c=0x%04x%s, label[%08x]);\n", + c, + *printable, + LabelToInt(on_equal)); + assembler_->CheckCharacter(c, on_equal); +} + +void RegExpMacroAssemblerTracer::CheckAtStart(int cp_offset, + Label* on_at_start) { + PrintF(" CheckAtStart(cp_offset=%d, label[%08x]);\n", cp_offset, + LabelToInt(on_at_start)); + assembler_->CheckAtStart(cp_offset, on_at_start); +} + +void RegExpMacroAssemblerTracer::CheckNotAtStart(int cp_offset, + Label* on_not_at_start) { + PrintF(" CheckNotAtStart(cp_offset=%d, label[%08x]);\n", cp_offset, + LabelToInt(on_not_at_start)); + assembler_->CheckNotAtStart(cp_offset, on_not_at_start); +} + + +void RegExpMacroAssemblerTracer::CheckNotCharacter(unsigned c, + Label* on_not_equal) { + PrintablePrinter printable(c); + PrintF(" CheckNotCharacter(c=0x%04x%s, label[%08x]);\n", + c, + *printable, + LabelToInt(on_not_equal)); + assembler_->CheckNotCharacter(c, on_not_equal); +} + + +void RegExpMacroAssemblerTracer::CheckCharacterAfterAnd( + unsigned c, + unsigned mask, + Label* on_equal) { + PrintablePrinter printable(c); + PrintF(" CheckCharacterAfterAnd(c=0x%04x%s, mask=0x%04x, label[%08x]);\n", + c, + *printable, + mask, + LabelToInt(on_equal)); + assembler_->CheckCharacterAfterAnd(c, mask, on_equal); +} + + +void RegExpMacroAssemblerTracer::CheckNotCharacterAfterAnd( + unsigned c, + unsigned mask, + Label* on_not_equal) { + PrintablePrinter printable(c); + PrintF(" CheckNotCharacterAfterAnd(c=0x%04x%s, mask=0x%04x, label[%08x]);\n", + c, + *printable, + mask, + LabelToInt(on_not_equal)); + assembler_->CheckNotCharacterAfterAnd(c, mask, on_not_equal); +} + + +void RegExpMacroAssemblerTracer::CheckNotCharacterAfterMinusAnd( + uc16 c, + uc16 minus, + uc16 mask, + Label* on_not_equal) { + PrintF(" CheckNotCharacterAfterMinusAnd(c=0x%04x, minus=%04x, mask=0x%04x, " + "label[%08x]);\n", + c, + minus, + mask, + LabelToInt(on_not_equal)); + assembler_->CheckNotCharacterAfterMinusAnd(c, minus, mask, on_not_equal); +} + + +void RegExpMacroAssemblerTracer::CheckCharacterInRange( + uc16 from, + uc16 to, + Label* on_not_in_range) { + PrintablePrinter printable_from(from); + PrintablePrinter printable_to(to); + PrintF(" CheckCharacterInRange(from=0x%04x%s, to=0x%04x%s, label[%08x]);\n", + from, + *printable_from, + to, + *printable_to, + LabelToInt(on_not_in_range)); + assembler_->CheckCharacterInRange(from, to, on_not_in_range); +} + + +void RegExpMacroAssemblerTracer::CheckCharacterNotInRange( + uc16 from, + uc16 to, + Label* on_in_range) { + PrintablePrinter printable_from(from); + PrintablePrinter printable_to(to); + PrintF( + " CheckCharacterNotInRange(from=0x%04x%s," " to=%04x%s, label[%08x]);\n", + from, + *printable_from, + to, + *printable_to, + LabelToInt(on_in_range)); + assembler_->CheckCharacterNotInRange(from, to, on_in_range); +} + + +void RegExpMacroAssemblerTracer::CheckBitInTable( + Handle<ByteArray> table, Label* on_bit_set) { + PrintF(" CheckBitInTable(label[%08x] ", LabelToInt(on_bit_set)); + for (int i = 0; i < kTableSize; i++) { + PrintF("%c", table->get(i) != 0 ? 'X' : '.'); + if (i % 32 == 31 && i != kTableMask) { + PrintF("\n "); + } + } + PrintF(");\n"); + assembler_->CheckBitInTable(table, on_bit_set); +} + + +void RegExpMacroAssemblerTracer::CheckNotBackReference(int start_reg, + bool read_backward, + Label* on_no_match) { + PrintF(" CheckNotBackReference(register=%d, %s, label[%08x]);\n", start_reg, + read_backward ? "backward" : "forward", LabelToInt(on_no_match)); + assembler_->CheckNotBackReference(start_reg, read_backward, on_no_match); +} + + +void RegExpMacroAssemblerTracer::CheckNotBackReferenceIgnoreCase( + int start_reg, bool read_backward, bool unicode, Label* on_no_match) { + PrintF(" CheckNotBackReferenceIgnoreCase(register=%d, %s %s, label[%08x]);\n", + start_reg, read_backward ? "backward" : "forward", + unicode ? "unicode" : "non-unicode", LabelToInt(on_no_match)); + assembler_->CheckNotBackReferenceIgnoreCase(start_reg, read_backward, unicode, + on_no_match); +} + + +void RegExpMacroAssemblerTracer::CheckPosition(int cp_offset, + Label* on_outside_input) { + PrintF(" CheckPosition(cp_offset=%d, label[%08x]);\n", cp_offset, + LabelToInt(on_outside_input)); + assembler_->CheckPosition(cp_offset, on_outside_input); +} + + +bool RegExpMacroAssemblerTracer::CheckSpecialCharacterClass( + uc16 type, + Label* on_no_match) { + bool supported = assembler_->CheckSpecialCharacterClass(type, + on_no_match); + PrintF(" CheckSpecialCharacterClass(type='%c', label[%08x]): %s;\n", + type, + LabelToInt(on_no_match), + supported ? "true" : "false"); + return supported; +} + + +void RegExpMacroAssemblerTracer::IfRegisterLT(int register_index, + int comparand, Label* if_lt) { + PrintF(" IfRegisterLT(register=%d, number=%d, label[%08x]);\n", + register_index, comparand, LabelToInt(if_lt)); + assembler_->IfRegisterLT(register_index, comparand, if_lt); +} + + +void RegExpMacroAssemblerTracer::IfRegisterEqPos(int register_index, + Label* if_eq) { + PrintF(" IfRegisterEqPos(register=%d, label[%08x]);\n", + register_index, LabelToInt(if_eq)); + assembler_->IfRegisterEqPos(register_index, if_eq); +} + + +void RegExpMacroAssemblerTracer::IfRegisterGE(int register_index, + int comparand, Label* if_ge) { + PrintF(" IfRegisterGE(register=%d, number=%d, label[%08x]);\n", + register_index, comparand, LabelToInt(if_ge)); + assembler_->IfRegisterGE(register_index, comparand, if_ge); +} + + +RegExpMacroAssembler::IrregexpImplementation + RegExpMacroAssemblerTracer::Implementation() { + return assembler_->Implementation(); +} + + +Handle<HeapObject> RegExpMacroAssemblerTracer::GetCode(Handle<String> source) { + PrintF(" GetCode(%s);\n", source->ToCString().get()); + return assembler_->GetCode(source); +} + +} // namespace internal +} // namespace v8 |