Extend TF test coverage to unsupported targets.

src/compiler/pipeline.cc

Index: src/compiler/pipeline.cc
diff --git a/src/compiler/pipeline.cc b/src/compiler/pipeline.cc
index 7a0460807d3274b970596d7d23a12de9104e60f6..382ee86d946e238094c599882c69d156e762525b 100644
--- a/src/compiler/pipeline.cc
+++ b/src/compiler/pipeline.cc
@@ -170,23 +170,23 @@ Handle<Code> Pipeline::GenerateCode() {
     }
   }
 
+  Handle<Code> code = Handle<Code>::null();
   if (SupportedTarget()) {
-    // Lower any remaining generic JSOperators.
-    PhaseStats lowering_stats(info(), PhaseStats::CREATE_GRAPH,
-                              "generic lowering");
-    MachineOperatorBuilder machine(zone());
-    JSGenericLowering lowering(info(), &jsgraph, &machine, &source_positions);
-    lowering.LowerAllNodes();
-
-    VerifyAndPrintGraph(&graph, "Lowered generic");
-  }
+    {
+      // Lower any remaining generic JSOperators.
+      PhaseStats lowering_stats(info(), PhaseStats::CREATE_GRAPH,
+                                "generic lowering");
+      MachineOperatorBuilder machine(zone());
+      JSGenericLowering lowering(info(), &jsgraph, &machine, &source_positions);
+      lowering.LowerAllNodes();
 
-  // Compute a schedule.
-  Schedule* schedule = ComputeSchedule(&graph);
-  TraceSchedule(schedule);
+      VerifyAndPrintGraph(&graph, "Lowered generic");
+    }
+
+    // Compute a schedule.
+    Schedule* schedule = ComputeSchedule(&graph);
+    TraceSchedule(schedule);
 
-  Handle<Code> code = Handle<Code>::null();
-  if (SupportedTarget()) {
     {
       // Generate optimized code.
       PhaseStats codegen_stats(info(), PhaseStats::CODEGEN, "codegen");
@@ -194,6 +194,7 @@ Handle<Code> Pipeline::GenerateCode() {
       code = GenerateCode(&linkage, &graph, schedule, &source_positions);
       info()->SetCode(code);
     }
+
     // Print optimized code.
     v8::internal::CodeGenerator::PrintCode(code, info());
   }