[turbofan] add RegisterConfiguration to decouple arch specific register layouts from compiler

test/cctest/compiler/test-codegen-deopt.cc

 // Copyright 2014 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/v8.h"
 #include "test/cctest/cctest.h"
 
 #include "src/compiler/code-generator.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
@@ skipping 57 matching lines @@
     Linkage* linkage = new (scope_->main_zone()) Linkage(info.zone(), &info);
     InstructionBlocks* instruction_blocks =
         TestInstrSeq::InstructionBlocksFor(scope_->main_zone(), schedule);
     code = new TestInstrSeq(scope_->main_zone(), instruction_blocks);
     SourcePositionTable source_positions(graph);
     InstructionSelector selector(scope_->main_zone(), graph, linkage, code,
                                  schedule, &source_positions);
     selector.SelectInstructions();
 
     if (FLAG_trace_turbo) {
+      PrintableInstructionSequence printable = {
+          RegisterConfiguration::ArchDefault(), code};
       os << "----- Instruction sequence before register allocation -----\n"
-         << *code;
+         << printable;
     }
 
     Frame frame;
-    RegisterAllocator allocator(RegisterAllocator::PlatformConfig(),
+    RegisterAllocator allocator(RegisterConfiguration::ArchDefault(),
                                 scope_->main_zone(), &frame, code);
     CHECK(allocator.Allocate());
 
     if (FLAG_trace_turbo) {
+      PrintableInstructionSequence printable = {
+          RegisterConfiguration::ArchDefault(), code};
       os << "----- Instruction sequence after register allocation -----\n"
-         << *code;
+         << printable;
     }
 
     compiler::CodeGenerator generator(&frame, linkage, code, &info);
     result_code = generator.GenerateCode();
 
 #ifdef OBJECT_PRINT
     if (FLAG_print_opt_code || FLAG_trace_turbo) {
       result_code->Print();
     }
 #endif
@@ skipping 211 matching lines @@
   Handle<Object> result;
   bool has_pending_exception =
       !Execution::Call(isolate, t.function,
                        isolate->factory()->undefined_value(), 0, NULL,
                        false).ToHandle(&result);
   CHECK(!has_pending_exception);
   CHECK(result->SameValue(Smi::FromInt(42)));
 }
 
 #endif