Debug error

test/cctest/wasm/test-run-wasm-module.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 <stdlib.h>
 #include <string.h>
 
 #include "src/wasm/encoder.h"
 #include "src/wasm/wasm-js.h"
 #include "src/wasm/wasm-macro-gen.h"
@@ skipping 175 matching lines @@
   f = builder->FunctionAt(f2_index);
   f->ReturnType(kAstI32);
   f->Exported(1);
   byte code2[] = {WASM_STORE_GLOBAL(global1, WASM_I32V_1(56)),
                   WASM_STORE_GLOBAL(global2, WASM_I32V_1(41)),
                   WASM_RETURN(WASM_CALL_FUNCTION0(f1_index))};
   f->EmitCode(code2, sizeof(code2));
   WasmModuleWriter* writer = builder->Build(&zone);
   TestModule(writer->WriteTo(&zone), 97);
 }
+
+TEST(Run_WasmModule_SubDebug) {
+  v8::base::AccountingAllocator allocator;
+  Zone zone(&allocator);
+  WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
+  uint16_t f_index = builder->AddFunction();
+  WasmFunctionBuilder* f = builder->FunctionAt(f_index);
+  f->ReturnType(kAstI32);
+  f->Exported(1);
+  uint16_t local = f->AddLocal(kAstI32);
+  byte code[] = {
+      WASM_SET_LOCAL(local, WASM_I32V(-1)),
+      WASM_RETURN(WASM_I32_SUB(WASM_GET_LOCAL(local), WASM_I32V(0)))};
+  uint32_t local_indices[] = {1, 11};
+  f->EmitCode(code, sizeof(code), local_indices, sizeof(local_indices) / 4);
+  WasmModuleWriter* writer = builder->Build(&zone);
+  TestModule(writer->WriteTo(&zone), -1);
+}