Use code tracer for code printing

Fix up disassembly triggered by --print-*-code to print to the trace
file specified by --redirect-code-traces-to rather than unconditionally
to stdout.

Change-Id: I80a8772361e8fb0550efcbbab6a7b7d822385303
Reviewed-on: https://chromium-review.googlesource.com/973167
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52119}

src/compiler/wasm-compiler.cc

@@ -4681,7 +4681,8 @@ Handle<Code> CompileJSToWasmWrapper(Isolate* isolate, wasm::WasmModule* module,
       Pipeline::GenerateCodeForTesting(&info, isolate, incoming, &graph);
 #ifdef ENABLE_DISASSEMBLER
   if (FLAG_print_opt_code && !code.is_null()) {
-    OFStream os(stdout);
+    CodeTracer::Scope tracing_scope(isolate->GetCodeTracer());
+    OFStream os(tracing_scope.file());
     code->Disassemble(func_name.start(), os);
   }
 #endif
@@ -4814,7 +4815,8 @@ Handle<Code> CompileWasmToJSWrapper(
     code->set_deoptimization_data(*deopt_data);
 #ifdef ENABLE_DISASSEMBLER
     if (FLAG_print_opt_code && !code.is_null()) {
-      OFStream os(stdout);
+      CodeTracer::Scope tracing_scope(isolate->GetCodeTracer());
+      OFStream os(tracing_scope.file());
       code->Disassemble(func_name.start(), os);
     }
 #endif
@@ -4883,7 +4885,8 @@ Handle<Code> CompileWasmToWasmWrapper(Isolate* isolate, wasm::WasmCode* target,
       Pipeline::GenerateCodeForTesting(&info, isolate, incoming, &graph);
 #ifdef ENABLE_DISASSEMBLER
   if (FLAG_print_opt_code && !code.is_null()) {
-    OFStream os(stdout);
+    CodeTracer::Scope tracing_scope(isolate->GetCodeTracer());
+    OFStream os(tracing_scope.file());
     code->Disassemble(buffer.start(), os);
   }
 #endif
@@ -4948,7 +4951,8 @@ Handle<Code> CompileWasmInterpreterEntry(Isolate* isolate, uint32_t func_index,
                                             nullptr);
 #ifdef ENABLE_DISASSEMBLER
     if (FLAG_print_opt_code && !code.is_null()) {
-      OFStream os(stdout);
+      CodeTracer::Scope tracing_scope(isolate->GetCodeTracer());
+      OFStream os(tracing_scope.file());
       code->Disassemble(func_name.start(), os);
     }
 #endif
@@ -5014,7 +5018,8 @@ Handle<Code> CompileCWasmEntry(Isolate* isolate, wasm::FunctionSig* sig) {
       Pipeline::GenerateCodeForTesting(&info, isolate, incoming, &graph);
 #ifdef ENABLE_DISASSEMBLER
   if (FLAG_print_opt_code && !code.is_null()) {
-    OFStream os(stdout);
+    CodeTracer::Scope tracing_scope(isolate->GetCodeTracer());
+    OFStream os(tracing_scope.file());
     code->Disassemble(debug_name, os);
   }
 #endif

src/snapshot/builtin-deserializer.cc

@@ -113,8 +113,10 @@ Code* BuiltinDeserializer::DeserializeBuiltin(int builtin_id) {
 
 #ifdef ENABLE_DISASSEMBLER
   if (FLAG_print_builtin_code) {
+    CodeTracer::Scope tracing_scope(isolate()->GetCodeTracer());
+    OFStream os(tracing_scope.file());
+
     DCHECK(isolate()->builtins()->is_initialized());
-    OFStream os(stdout);
     code->Disassemble(Builtins::name(builtin_id), os);
     os << std::flush;
   }
@@ -131,7 +133,9 @@ Code* BuiltinDeserializer::DeserializeHandler(Bytecode bytecode,
 
 #ifdef ENABLE_DISASSEMBLER
   if (FLAG_print_builtin_code) {
-    OFStream os(stdout);
+    CodeTracer::Scope tracing_scope(isolate()->GetCodeTracer());
+    OFStream os(tracing_scope.file());
+
     code->Disassemble(Bytecodes::ToString(bytecode), os);
     os << std::flush;
   }

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

@@ -389,7 +389,9 @@ Handle<Code> WasmFunctionWrapper::GetWrapperCode() {
     CHECK(!code_.is_null());
 #ifdef ENABLE_DISASSEMBLER
     if (FLAG_print_opt_code) {
-      OFStream os(stdout);
+      CodeTracer::Scope tracing_scope(isolate->GetCodeTracer());
+      OFStream os(tracing_scope.file());
+
       code_->Disassemble("wasm wrapper", os);
     }
 #endif