[wasm] Generate source position information

test/cctest/wasm/wasm-run-utils.h

 // Copyright 2016 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.
 
 #ifndef WASM_RUN_UTILS_H
 #define WASM_RUN_UTILS_H
 
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
@@ skipping 224 matching lines @@
     global_offset = (global_offset + size - 1) & ~(size - 1);  // align
     module->globals.push_back({0, 0, mem_type, global_offset, false});
     global_offset += size;
     // limit number of globals.
     CHECK_LT(global_offset, kMaxGlobalsSize);
     return &module->globals.back();
   }
 };
 
 inline void TestBuildingGraph(Zone* zone, JSGraph* jsgraph, ModuleEnv* module,
-                              FunctionSig* sig, const byte* start,
-                              const byte* end) {
-  compiler::WasmGraphBuilder builder(zone, jsgraph, sig);
+                              FunctionSig* sig,
+                              SourcePositionTable* source_position_table,
+                              const byte* start, const byte* end) {
+  compiler::WasmGraphBuilder builder(zone, jsgraph, sig, source_position_table);
+  builder.EnterSourcePositionScope();
   TreeResult result =
       BuildTFGraph(zone->allocator(), &builder, module, sig, start, end);
+  builder.LeaveSourcePositionScope();
   if (result.failed()) {
     ptrdiff_t pc = result.error_pc - result.start;
     ptrdiff_t pt = result.error_pt - result.start;
     std::ostringstream str;
     str << "Verification failed: " << result.error_code << " pc = +" << pc;
     if (result.error_pt) str << ", pt = +" << pt;
     str << ", msg = " << result.error_msg.get();
     FATAL(str.str().c_str());
   }
   builder.Int64LoweringForTesting();
@@ skipping 149 matching lines @@
 // TurboFan graph) and, later, interpretation.
 class WasmFunctionCompiler : public HandleAndZoneScope,
                              private GraphAndBuilders {
  public:
   explicit WasmFunctionCompiler(FunctionSig* sig, TestingModule* module)
       : GraphAndBuilders(main_zone()),
         jsgraph(this->isolate(), this->graph(), this->common(), nullptr,
                 nullptr, this->machine()),
         sig(sig),
         descriptor_(nullptr),
-        testing_module_(module) {
+        testing_module_(module),
+        source_position_table_(this->graph()) {
     if (module) {
       // Get a new function from the testing module.
       function_ = nullptr;
       function_index_ = module->AddFunction(sig, Handle<Code>::null());
     } else {
       // Create our own function.
       function_ = new WasmFunction();
       function_->sig = sig;
       function_index_ = 0;
     }
   }
 
   ~WasmFunctionCompiler() {
     if (function_) delete function_;
   }
 
   JSGraph jsgraph;
   FunctionSig* sig;
   // The call descriptor is initialized when the function is compiled.
   CallDescriptor* descriptor_;
   TestingModule* testing_module_;
   WasmFunction* function_;
   int function_index_;
   LocalDeclEncoder local_decls;
+  SourcePositionTable source_position_table_;
 
   Isolate* isolate() { return main_isolate(); }
   Graph* graph() const { return main_graph_; }
   Zone* zone() const { return graph()->zone(); }
   CommonOperatorBuilder* common() { return &main_common_; }
   MachineOperatorBuilder* machine() { return &main_machine_; }
   void InitializeDescriptor() {
     if (descriptor_ == nullptr) {
       descriptor_ = testing_module_->GetWasmCallDescriptor(main_zone(), sig);
     }
   }
   CallDescriptor* descriptor() { return descriptor_; }
 
   void Build(const byte* start, const byte* end) {
     // Build the TurboFan graph.
     local_decls.Prepend(&start, &end);
-    TestBuildingGraph(main_zone(), &jsgraph, testing_module_, sig, start, end);
+    TestBuildingGraph(main_zone(), &jsgraph, testing_module_, sig,
+                      &source_position_table_, start, end);
     delete[] start;
   }
 
   byte AllocateLocal(LocalType type) {
     uint32_t index = local_decls.AddLocals(1, type, sig);
     byte result = static_cast<byte>(index);
     DCHECK_EQ(index, result);
     return result;
   }
 
   Handle<Code> Compile() {
     InitializeDescriptor();
     CallDescriptor* desc = descriptor_;
     if (kPointerSize == 4) {
       desc = testing_module_->GetI32WasmCallDescriptor(this->zone(), desc);
     }
     CompilationInfo info("wasm compile", this->isolate(), this->zone(),
                          Code::ComputeFlags(Code::WASM_FUNCTION));
+    info.MarkAsSourcePositionsEnabled();
+    info.SetSourcePositionTable(&source_position_table_);
     Handle<Code> result =
         Pipeline::GenerateCodeForTesting(&info, desc, this->graph());
 #ifdef ENABLE_DISASSEMBLER
     if (!result.is_null() && FLAG_print_opt_code) {
       OFStream os(stdout);
       result->Disassemble("wasm code", os);
     }
 #endif
 
     return result;
@@ skipping 129 matching lines @@
     if (p1 == MachineType::None()) return 1;
     if (p2 == MachineType::None()) return 2;
     if (p3 == MachineType::None()) return 3;
     return 4;
   }
 };
 
 }  // namespace
 
 #endif