commit a3d05a40de076aabf12ea284c67c99ff28b43dbf
author Nicolas Geoffray <ngeoffray@google.com> Mon Oct 20 17:41:32 2014 +0100
committer Nicolas Geoffray <ngeoffray@google.com> Wed Oct 22 13:49:47 2014 +0000
tree acbe183e7637a333bdaaf0910731b053f2be0f26
parent 2da28f2a9e79a09a4044521dc4d00320fcdcd041

Implement array creation related DEX instructions.

Implement new-array, filled-new-array, and fill-array-data.

Change-Id: I405560d66777a57d881e384265322617ac5d3ce3

compiler/optimizing/builder.h

diff --git a/compiler/optimizing/builder.h b/compiler/optimizing/builder.h
index 90e50ad..c5e02db 100644
--- a/compiler/optimizing/builder.h
+++ b/compiler/optimizing/builder.h
@@ -48,7 +48,9 @@
         dex_file_(dex_file),
         dex_compilation_unit_(dex_compilation_unit),
         compiler_driver_(driver),
-        return_type_(Primitive::GetType(dex_compilation_unit_->GetShorty()[0])) {}
+        return_type_(Primitive::GetType(dex_compilation_unit_->GetShorty()[0])),
+        code_start_(nullptr),
+        latest_result_(nullptr) {}
 
   // Only for unit testing.
   HGraphBuilder(ArenaAllocator* arena, Primitive::Type return_type = Primitive::kPrimInt)
@@ -64,7 +66,9 @@
         dex_file_(nullptr),
         dex_compilation_unit_(nullptr),
         compiler_driver_(nullptr),
-        return_type_(return_type) {}
+        return_type_(return_type),
+        code_start_(nullptr),
+        latest_result_(nullptr) {}
 
   HGraph* BuildGraph(const DexFile::CodeItem& code);
 
@@ -129,6 +133,31 @@
                    uint32_t* args,
                    uint32_t register_index);
 
+  // Builds a new array node and the instructions that fill it.
+  void BuildFilledNewArray(uint32_t dex_offset,
+                           uint32_t type_index,
+                           uint32_t number_of_vreg_arguments,
+                           bool is_range,
+                           uint32_t* args,
+                           uint32_t register_index);
+
+  // Fills the given object with data as specified in the fill-array-data
+  // instruction. Currently only used for non-reference and non-floating point
+  // arrays.
+  template <typename T>
+  void BuildFillArrayData(HInstruction* object,
+                          const T* data,
+                          uint32_t element_count,
+                          Primitive::Type anticipated_type,
+                          uint32_t dex_offset);
+
+  // Fills the given object with data as specified in the fill-array-data
+  // instruction. The data must be for long and double arrays.
+  void BuildFillWideArrayData(HInstruction* object,
+                              const uint64_t* data,
+                              uint32_t element_count,
+                              uint32_t dex_offset);
+
   ArenaAllocator* const arena_;
 
   // A list of the size of the dex code holding block information for
@@ -151,6 +180,14 @@
   CompilerDriver* const compiler_driver_;
   const Primitive::Type return_type_;
 
+  // The pointer in the dex file where the instructions of the code item
+  // being currently compiled start.
+  const uint16_t* code_start_;
+
+  // The last invoke or fill-new-array being built. Only to be
+  // used by move-result instructions.
+  HInstruction* latest_result_;
+
   DISALLOW_COPY_AND_ASSIGN(HGraphBuilder);
 };