Support int-to-long conversions in the optimizing compiler.

- Add support for the int-to-float Dex instruction in the
  optimizing compiler.
- Add a HTypeConversion node type for control-flow graphs.
- Generate x86, x86-64 and ARM (but not ARM64) code for
  int-to-float HTypeConversion nodes.
- Add a 64-bit "Move doubleword to quadword with
  sign-extension" (MOVSXD) instruction to the x86-64
  assembler.
- Add related tests to test/422-type-conversion.

Change-Id: Ieb8ec5380f9c411857119c79aa8d0728fd10f780

1 files changed, 13 insertions, 0 deletions

diff --git a/compiler/optimizing/builder.cc b/compiler/optimizing/builder.cc
index d168fc80f1..4ce23d725b 100644
--- a/compiler/optimizing/builder.cc
+++ b/compiler/optimizing/builder.cc
@@ -273,6 +273,14 @@ void HGraphBuilder::Unop_12x(const Instruction& instruction, Primitive::Type typ
   UpdateLocal(instruction.VRegA(), current_block_->GetLastInstruction());
 }
 
+void HGraphBuilder::Conversion_12x(const Instruction& instruction,
+                                   Primitive::Type input_type,
+                                   Primitive::Type result_type) {
+  HInstruction* first = LoadLocal(instruction.VRegB(), input_type);
+  current_block_->AddInstruction(new (arena_) HTypeConversion(result_type, first));
+  UpdateLocal(instruction.VRegA(), current_block_->GetLastInstruction());
+}
+
 template<typename T>
 void HGraphBuilder::Binop_23x(const Instruction& instruction, Primitive::Type type) {
   HInstruction* first = LoadLocal(instruction.VRegB(), type);
@@ -823,6 +831,11 @@ bool HGraphBuilder::AnalyzeDexInstruction(const Instruction& instruction, uint32
       break;
     }
 
+    case Instruction::INT_TO_LONG: {
+      Conversion_12x(instruction, Primitive::kPrimInt, Primitive::kPrimLong);
+      break;
+    }
+
     case Instruction::ADD_INT: {
       Binop_23x<HAdd>(instruction, Primitive::kPrimInt);
       break;