[turbofan] Add backend support for load/store float32 values.

test/compiler-unittests/instruction-selector-unittest.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 "test/compiler-unittests/instruction-selector-unittest.h"
 
 #include "src/flags.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 168 matching lines @@
   const MachineType type = GetParam();
   StreamBuilder m(this, type, type);
   Node* param = m.Parameter(0);
   Node* finish = m.NewNode(m.common()->Finish(1), param, m.graph()->start());
   m.Return(finish);
   Stream s = m.Build(kAllInstructions);
   ASSERT_EQ(3U, s.size());
   EXPECT_EQ(kArchNop, s[0]->arch_opcode());
   ASSERT_EQ(1U, s[0]->OutputCount());
   ASSERT_TRUE(s[0]->Output()->IsUnallocated());
-  EXPECT_EQ(param->id(),
-            UnallocatedOperand::cast(s[0]->Output())->virtual_register());
+  EXPECT_EQ(param->id(), s.ToVreg(s[0]->Output()));
   EXPECT_EQ(kArchNop, s[1]->arch_opcode());
   ASSERT_EQ(1U, s[1]->InputCount());
   ASSERT_TRUE(s[1]->InputAt(0)->IsUnallocated());
-  EXPECT_EQ(param->id(),
-            UnallocatedOperand::cast(s[1]->InputAt(0))->virtual_register());
+  EXPECT_EQ(param->id(), s.ToVreg(s[1]->InputAt(0)));
   ASSERT_EQ(1U, s[1]->OutputCount());
   ASSERT_TRUE(s[1]->Output()->IsUnallocated());
   EXPECT_TRUE(UnallocatedOperand::cast(s[1]->Output())->HasSameAsInputPolicy());
-  EXPECT_EQ(finish->id(),
-            UnallocatedOperand::cast(s[1]->Output())->virtual_register());
+  EXPECT_EQ(finish->id(), s.ToVreg(s[1]->Output()));
 }
 
 
 TARGET_TEST_P(InstructionSelectorFinishTest, PropagateDoubleness) {
   const MachineType type = GetParam();
   StreamBuilder m(this, type, type);
   Node* param = m.Parameter(0);
   Node* finish = m.NewNode(m.common()->Finish(1), param, m.graph()->start());
   m.Return(finish);
   Stream s = m.Build(kAllInstructions);
@@ skipping 95 matching lines @@
     const Instruction* i2 = s2[i];
     EXPECT_EQ(i1->arch_opcode(), i2->arch_opcode());
     EXPECT_EQ(i1->InputCount(), i2->InputCount());
     EXPECT_EQ(i1->OutputCount(), i2->OutputCount());
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8