[wasm] Fix location for error in asm.js ToNumber conversion

src/compiler/wasm-compiler.cc

 // Copyright 2015 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 "src/compiler/wasm-compiler.h"
 
 #include <memory>
 
 #include "src/isolate-inl.h"
 
@@ skipping 2368 matching lines @@
 Node* WasmGraphBuilder::BuildJavaScriptToNumber(Node* node, Node* context) {
   Callable callable = CodeFactory::ToNumber(jsgraph()->isolate());
   CallDescriptor* desc = Linkage::GetStubCallDescriptor(
       jsgraph()->isolate(), jsgraph()->zone(), callable.descriptor(), 0,
       CallDescriptor::kNoFlags, Operator::kNoProperties);
   Node* stub_code = jsgraph()->HeapConstant(callable.code());
 
   Node* result = graph()->NewNode(jsgraph()->common()->Call(desc), stub_code,
                                   node, context, *effect_, *control_);
 
+  SetSourcePosition(result, 1);
+
   *effect_ = result;
 
   return result;
 }
 
 bool CanCover(Node* value, IrOpcode::Value opcode) {
   if (value->opcode() != opcode) return false;
   bool first = true;
   for (Edge const edge : value->use_edges()) {
     if (NodeProperties::IsControlEdge(edge)) continue;
@@ skipping 379 matching lines @@
     // the target is a native function, or if the target is a callable JSObject,
     // which can only be constructed by the runtime.
     args[pos++] = HeapConstant(isolate->native_context());
     args[pos++] = *effect_;
     args[pos++] = *control_;
 
     call = graph()->NewNode(jsgraph()->common()->Call(desc), pos, args);
   }
 
   *effect_ = call;
+  SetSourcePosition(call, 0);
 
   // Convert the return value back.
   Node* i32_zero = jsgraph()->Int32Constant(0);
   Node* val = sig->return_count() == 0
                   ? i32_zero
                   : FromJS(call, HeapConstant(isolate->native_context()),
                            sig->GetReturn());
   Node* ret = graph()->NewNode(jsgraph()->common()->Return(), i32_zero, val,
                                *effect_, start);
 
@@ skipping 454 matching lines @@
     RecordFunctionCompilation(CodeEventListener::FUNCTION_TAG, isolate, code,
                               "js-to-wasm", index, wasm::WasmName("export"),
                               CStrVector(func_name));
   }
   return code;
 }
 
 Handle<Code> CompileWasmToJSWrapper(Isolate* isolate, Handle<JSReceiver> target,
                                     wasm::FunctionSig* sig, uint32_t index,
                                     Handle<String> module_name,
-                                    MaybeHandle<String> import_name) {
+                                    MaybeHandle<String> import_name,
+                                    wasm::ModuleOrigin origin) {
   //----------------------------------------------------------------------------
   // Create the Graph
   //----------------------------------------------------------------------------
   Zone zone(isolate->allocator(), ZONE_NAME);
   Graph graph(&zone);
   CommonOperatorBuilder common(&zone);
   MachineOperatorBuilder machine(&zone);
   JSGraph jsgraph(isolate, &graph, &common, nullptr, nullptr, &machine);
 
   Node* control = nullptr;
   Node* effect = nullptr;
 
-  WasmGraphBuilder builder(&zone, &jsgraph, sig);
+  SourcePositionTable* source_position_table =
+      origin == wasm::kAsmJsOrigin ? new (&zone) SourcePositionTable(&graph)
+                                   : nullptr;
+
+  WasmGraphBuilder builder(&zone, &jsgraph, sig, source_position_table);
   builder.set_control_ptr(&control);
   builder.set_effect_ptr(&effect);
   builder.BuildWasmToJSWrapper(target, sig);
 
   Handle<Code> code = Handle<Code>::null();
   {
     if (FLAG_trace_turbo_graph) {  // Simple textual RPO.
       OFStream os(stdout);
       os << "-- Graph after change lowering -- " << std::endl;
       os << AsRPO(graph);
@@ skipping 15 matching lines @@
     Vector<const char> func_name = ArrayVector("wasm-to-js");
     static unsigned id = 0;
     Vector<char> buffer;
     if (debugging) {
       buffer = Vector<char>::New(128);
       int chars = SNPrintF(buffer, "wasm-to-js#%d", id);
       func_name = Vector<const char>::cast(buffer.SubVector(0, chars));
     }
 
     CompilationInfo info(func_name, isolate, &zone, flags);
-    code = Pipeline::GenerateCodeForTesting(&info, incoming, &graph, nullptr);
+    code = Pipeline::GenerateCodeForTesting(&info, incoming, &graph, nullptr,
+                                            source_position_table);
 #ifdef ENABLE_DISASSEMBLER
     if (FLAG_print_opt_code && !code.is_null()) {
       OFStream os(stdout);
       code->Disassemble(buffer.start(), os);
     }
 #endif
     if (debugging) {
       buffer.Dispose();
     }
   }
@@ skipping 213 matching lines @@
                       Smi::FromInt(instruction.instr_offset));
     fn_protected->set(Code::kTrapDataSize * i + Code::kTrapLandingOffset,
                       Smi::FromInt(instruction.landing_offset));
   }
   return fn_protected;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8