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diff --git a/js/src/jit/arm64/vixl/Instrument-vixl.cpp b/js/src/jit/arm64/vixl/Instrument-vixl.cpp
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+// Copyright 2014, ARM Limited
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// * Redistributions of source code must retain the above copyright notice,
+// this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright notice,
+// this list of conditions and the following disclaimer in the documentation
+// and/or other materials provided with the distribution.
+// * Neither the name of ARM Limited nor the names of its contributors may be
+// used to endorse or promote products derived from this software without
+// specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "jit/arm64/vixl/Instrument-vixl.h"
+
+namespace vixl {
+
+Counter::Counter(const char* name, CounterType type)
+ : count_(0), enabled_(false), type_(type) {
+ VIXL_ASSERT(name != NULL);
+ strncpy(name_, name, kCounterNameMaxLength);
+}
+
+
+void Counter::Enable() {
+ enabled_ = true;
+}
+
+
+void Counter::Disable() {
+ enabled_ = false;
+}
+
+
+bool Counter::IsEnabled() {
+ return enabled_;
+}
+
+
+void Counter::Increment() {
+ if (enabled_) {
+ count_++;
+ }
+}
+
+
+uint64_t Counter::count() {
+ uint64_t result = count_;
+ if (type_ == Gauge) {
+ // If the counter is a Gauge, reset the count after reading.
+ count_ = 0;
+ }
+ return result;
+}
+
+
+const char* Counter::name() {
+ return name_;
+}
+
+
+CounterType Counter::type() {
+ return type_;
+}
+
+
+struct CounterDescriptor {
+ const char* name;
+ CounterType type;
+};
+
+
+static const CounterDescriptor kCounterList[] = {
+ {"Instruction", Cumulative},
+
+ {"Move Immediate", Gauge},
+ {"Add/Sub DP", Gauge},
+ {"Logical DP", Gauge},
+ {"Other Int DP", Gauge},
+ {"FP DP", Gauge},
+
+ {"Conditional Select", Gauge},
+ {"Conditional Compare", Gauge},
+
+ {"Unconditional Branch", Gauge},
+ {"Compare and Branch", Gauge},
+ {"Test and Branch", Gauge},
+ {"Conditional Branch", Gauge},
+
+ {"Load Integer", Gauge},
+ {"Load FP", Gauge},
+ {"Load Pair", Gauge},
+ {"Load Literal", Gauge},
+
+ {"Store Integer", Gauge},
+ {"Store FP", Gauge},
+ {"Store Pair", Gauge},
+
+ {"PC Addressing", Gauge},
+ {"Other", Gauge},
+ {"NEON", Gauge},
+ {"Crypto", Gauge}
+};
+
+
+Instrument::Instrument(const char* datafile, uint64_t sample_period)
+ : output_stream_(stdout), sample_period_(sample_period) {
+
+ // Set up the output stream. If datafile is non-NULL, use that file. If it
+ // can't be opened, or datafile is NULL, use stdout.
+ if (datafile != NULL) {
+ output_stream_ = fopen(datafile, "w");
+ if (output_stream_ == NULL) {
+ printf("Can't open output file %s. Using stdout.\n", datafile);
+ output_stream_ = stdout;
+ }
+ }
+
+ static const int num_counters =
+ sizeof(kCounterList) / sizeof(CounterDescriptor);
+
+ // Dump an instrumentation description comment at the top of the file.
+ fprintf(output_stream_, "# counters=%d\n", num_counters);
+ fprintf(output_stream_, "# sample_period=%" PRIu64 "\n", sample_period_);
+
+ // Construct Counter objects from counter description array.
+ for (int i = 0; i < num_counters; i++) {
+ if (Counter* counter = js_new<Counter>(kCounterList[i].name, kCounterList[i].type))
+ counters_.append(counter);
+ }
+
+ DumpCounterNames();
+}
+
+
+Instrument::~Instrument() {
+ // Dump any remaining instruction data to the output file.
+ DumpCounters();
+
+ // Free all the counter objects.
+ for (auto counter : counters_) {
+ js_delete(counter);
+ }
+
+ if (output_stream_ != stdout) {
+ fclose(output_stream_);
+ }
+}
+
+
+void Instrument::Update() {
+ // Increment the instruction counter, and dump all counters if a sample period
+ // has elapsed.
+ static Counter* counter = GetCounter("Instruction");
+ VIXL_ASSERT(counter->type() == Cumulative);
+ counter->Increment();
+
+ if (counter->IsEnabled() && (counter->count() % sample_period_) == 0) {
+ DumpCounters();
+ }
+}
+
+
+void Instrument::DumpCounters() {
+ // Iterate through the counter objects, dumping their values to the output
+ // stream.
+ for (auto counter : counters_) {
+ fprintf(output_stream_, "%" PRIu64 ",", counter->count());
+ }
+ fprintf(output_stream_, "\n");
+ fflush(output_stream_);
+}
+
+
+void Instrument::DumpCounterNames() {
+ // Iterate through the counter objects, dumping the counter names to the
+ // output stream.
+ for (auto counter : counters_) {
+ fprintf(output_stream_, "%s,", counter->name());
+ }
+ fprintf(output_stream_, "\n");
+ fflush(output_stream_);
+}
+
+
+void Instrument::HandleInstrumentationEvent(unsigned event) {
+ switch (event) {
+ case InstrumentStateEnable: Enable(); break;
+ case InstrumentStateDisable: Disable(); break;
+ default: DumpEventMarker(event);
+ }
+}
+
+
+void Instrument::DumpEventMarker(unsigned marker) {
+ // Dumpan event marker to the output stream as a specially formatted comment
+ // line.
+ static Counter* counter = GetCounter("Instruction");
+
+ fprintf(output_stream_, "# %c%c @ %" PRId64 "\n", marker & 0xff,
+ (marker >> 8) & 0xff, counter->count());
+}
+
+
+Counter* Instrument::GetCounter(const char* name) {
+ // Get a Counter object by name from the counter list.
+ for (auto counter : counters_) {
+ if (strcmp(counter->name(), name) == 0) {
+ return counter;
+ }
+ }
+
+ // A Counter by that name does not exist: print an error message to stderr
+ // and the output file, and exit.
+ static const char* error_message =
+ "# Error: Unknown counter \"%s\". Exiting.\n";
+ fprintf(stderr, error_message, name);
+ fprintf(output_stream_, error_message, name);
+ exit(1);
+}
+
+
+void Instrument::Enable() {
+ for (auto counter : counters_) {
+ counter->Enable();
+ }
+}
+
+
+void Instrument::Disable() {
+ for (auto counter : counters_) {
+ counter->Disable();
+ }
+}
+
+
+void Instrument::VisitPCRelAddressing(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("PC Addressing");
+ counter->Increment();
+}
+
+
+void Instrument::VisitAddSubImmediate(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Add/Sub DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitLogicalImmediate(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Logical DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitMoveWideImmediate(const Instruction* instr) {
+ Update();
+ static Counter* counter = GetCounter("Move Immediate");
+
+ if (instr->IsMovn() && (instr->Rd() == kZeroRegCode)) {
+ unsigned imm = instr->ImmMoveWide();
+ HandleInstrumentationEvent(imm);
+ } else {
+ counter->Increment();
+ }
+}
+
+
+void Instrument::VisitBitfield(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Other Int DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitExtract(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Other Int DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitUnconditionalBranch(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Unconditional Branch");
+ counter->Increment();
+}
+
+
+void Instrument::VisitUnconditionalBranchToRegister(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Unconditional Branch");
+ counter->Increment();
+}
+
+
+void Instrument::VisitCompareBranch(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Compare and Branch");
+ counter->Increment();
+}
+
+
+void Instrument::VisitTestBranch(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Test and Branch");
+ counter->Increment();
+}
+
+
+void Instrument::VisitConditionalBranch(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Conditional Branch");
+ counter->Increment();
+}
+
+
+void Instrument::VisitSystem(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Other");
+ counter->Increment();
+}
+
+
+void Instrument::VisitException(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Other");
+ counter->Increment();
+}
+
+
+void Instrument::InstrumentLoadStorePair(const Instruction* instr) {
+ static Counter* load_pair_counter = GetCounter("Load Pair");
+ static Counter* store_pair_counter = GetCounter("Store Pair");
+
+ if (instr->Mask(LoadStorePairLBit) != 0) {
+ load_pair_counter->Increment();
+ } else {
+ store_pair_counter->Increment();
+ }
+}
+
+
+void Instrument::VisitLoadStorePairPostIndex(const Instruction* instr) {
+ Update();
+ InstrumentLoadStorePair(instr);
+}
+
+
+void Instrument::VisitLoadStorePairOffset(const Instruction* instr) {
+ Update();
+ InstrumentLoadStorePair(instr);
+}
+
+
+void Instrument::VisitLoadStorePairPreIndex(const Instruction* instr) {
+ Update();
+ InstrumentLoadStorePair(instr);
+}
+
+
+void Instrument::VisitLoadStorePairNonTemporal(const Instruction* instr) {
+ Update();
+ InstrumentLoadStorePair(instr);
+}
+
+
+void Instrument::VisitLoadStoreExclusive(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Other");
+ counter->Increment();
+}
+
+
+void Instrument::VisitLoadLiteral(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Load Literal");
+ counter->Increment();
+}
+
+
+void Instrument::InstrumentLoadStore(const Instruction* instr) {
+ static Counter* load_int_counter = GetCounter("Load Integer");
+ static Counter* store_int_counter = GetCounter("Store Integer");
+ static Counter* load_fp_counter = GetCounter("Load FP");
+ static Counter* store_fp_counter = GetCounter("Store FP");
+
+ switch (instr->Mask(LoadStoreMask)) {
+ case STRB_w:
+ case STRH_w:
+ case STR_w:
+ VIXL_FALLTHROUGH();
+ case STR_x: store_int_counter->Increment(); break;
+ case STR_s:
+ VIXL_FALLTHROUGH();
+ case STR_d: store_fp_counter->Increment(); break;
+ case LDRB_w:
+ case LDRH_w:
+ case LDR_w:
+ case LDR_x:
+ case LDRSB_x:
+ case LDRSH_x:
+ case LDRSW_x:
+ case LDRSB_w:
+ VIXL_FALLTHROUGH();
+ case LDRSH_w: load_int_counter->Increment(); break;
+ case LDR_s:
+ VIXL_FALLTHROUGH();
+ case LDR_d: load_fp_counter->Increment(); break;
+ }
+}
+
+
+void Instrument::VisitLoadStoreUnscaledOffset(const Instruction* instr) {
+ Update();
+ InstrumentLoadStore(instr);
+}
+
+
+void Instrument::VisitLoadStorePostIndex(const Instruction* instr) {
+ USE(instr);
+ Update();
+ InstrumentLoadStore(instr);
+}
+
+
+void Instrument::VisitLoadStorePreIndex(const Instruction* instr) {
+ Update();
+ InstrumentLoadStore(instr);
+}
+
+
+void Instrument::VisitLoadStoreRegisterOffset(const Instruction* instr) {
+ Update();
+ InstrumentLoadStore(instr);
+}
+
+
+void Instrument::VisitLoadStoreUnsignedOffset(const Instruction* instr) {
+ Update();
+ InstrumentLoadStore(instr);
+}
+
+
+void Instrument::VisitLogicalShifted(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Logical DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitAddSubShifted(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Add/Sub DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitAddSubExtended(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Add/Sub DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitAddSubWithCarry(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Add/Sub DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitConditionalCompareRegister(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Conditional Compare");
+ counter->Increment();
+}
+
+
+void Instrument::VisitConditionalCompareImmediate(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Conditional Compare");
+ counter->Increment();
+}
+
+
+void Instrument::VisitConditionalSelect(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Conditional Select");
+ counter->Increment();
+}
+
+
+void Instrument::VisitDataProcessing1Source(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Other Int DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitDataProcessing2Source(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Other Int DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitDataProcessing3Source(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Other Int DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitFPCompare(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("FP DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitFPConditionalCompare(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Conditional Compare");
+ counter->Increment();
+}
+
+
+void Instrument::VisitFPConditionalSelect(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Conditional Select");
+ counter->Increment();
+}
+
+
+void Instrument::VisitFPImmediate(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("FP DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitFPDataProcessing1Source(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("FP DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitFPDataProcessing2Source(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("FP DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitFPDataProcessing3Source(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("FP DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitFPIntegerConvert(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("FP DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitFPFixedPointConvert(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("FP DP");
+ counter->Increment();
+}
+
+
+void Instrument::VisitCrypto2RegSHA(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Crypto");
+ counter->Increment();
+}
+
+
+void Instrument::VisitCrypto3RegSHA(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Crypto");
+ counter->Increment();
+}
+
+
+void Instrument::VisitCryptoAES(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Crypto");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEON2RegMisc(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEON3Same(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEON3Different(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONAcrossLanes(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONByIndexedElement(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONCopy(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONExtract(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONLoadStoreMultiStruct(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONLoadStoreMultiStructPostIndex(
+ const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONLoadStoreSingleStruct(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONLoadStoreSingleStructPostIndex(
+ const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONModifiedImmediate(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONScalar2RegMisc(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONScalar3Diff(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONScalar3Same(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONScalarByIndexedElement(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONScalarCopy(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONScalarPairwise(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONScalarShiftImmediate(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONShiftImmediate(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONTable(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitNEONPerm(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("NEON");
+ counter->Increment();
+}
+
+
+void Instrument::VisitUnallocated(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Other");
+ counter->Increment();
+}
+
+
+void Instrument::VisitUnimplemented(const Instruction* instr) {
+ USE(instr);
+ Update();
+ static Counter* counter = GetCounter("Other");
+ counter->Increment();
+}
+
+
+} // namespace vixl