commit 5bd05a5c9492189ec28edaf6396d6a39ddf03367
author Nicolas Geoffray <ngeoffray@google.com> Tue Oct 13 09:48:30 2015 +0100
committer Nicolas Geoffray <ngeoffray@google.com> Tue Oct 13 17:29:19 2015 +0100
tree 186488cafe4d815ab834097e91c75f2c20009e2b
parent 439ffb8d4fa25b4ac7518a3bd5cbc3f3769ead48

Implement System.arraycopy intrinsic for arm.

Change-Id: I58ae1af5103e281fe59fbe022b718d6d8f293a5e

compiler/utils/arm/assembler_arm.h

diff --git a/compiler/utils/arm/assembler_arm.h b/compiler/utils/arm/assembler_arm.h
index 967b191..69ecc8f 100644
--- a/compiler/utils/arm/assembler_arm.h
+++ b/compiler/utils/arm/assembler_arm.h
@@ -832,6 +832,8 @@
                                      uint32_t immediate,
                                      ShifterOperand* shifter_op) = 0;
 
+  virtual bool ShifterOperandCanAlwaysHold(uint32_t immediate);
+
   static bool IsInstructionForExceptionHandling(uintptr_t pc);
 
   virtual void CompareAndBranchIfZero(Register r, Label* label) = 0;

compiler/utils/arm/assembler_arm32.cc

diff --git a/compiler/utils/arm/assembler_arm32.cc b/compiler/utils/arm/assembler_arm32.cc
index f7772ae..9ae7bb6 100644
--- a/compiler/utils/arm/assembler_arm32.cc
+++ b/compiler/utils/arm/assembler_arm32.cc
@@ -48,6 +48,11 @@
   return false;
 }
 
+bool Arm32Assembler::ShifterOperandCanAlwaysHold(uint32_t immediate) {
+  ShifterOperand shifter_op;
+  return ShifterOperandCanHoldArm32(immediate, &shifter_op);
+}
+
 bool Arm32Assembler::ShifterOperandCanHold(Register rd ATTRIBUTE_UNUSED,
                                            Register rn ATTRIBUTE_UNUSED,
                                            Opcode opcode ATTRIBUTE_UNUSED,

compiler/utils/arm/assembler_arm32.h

diff --git a/compiler/utils/arm/assembler_arm32.h b/compiler/utils/arm/assembler_arm32.h
index 3407369..b40c093 100644
--- a/compiler/utils/arm/assembler_arm32.h
+++ b/compiler/utils/arm/assembler_arm32.h
@@ -294,6 +294,7 @@
                              uint32_t immediate,
                              ShifterOperand* shifter_op) OVERRIDE;
 
+  bool ShifterOperandCanAlwaysHold(uint32_t immediate) OVERRIDE;
 
   static bool IsInstructionForExceptionHandling(uintptr_t pc);
 

compiler/utils/arm/assembler_thumb2.cc

diff --git a/compiler/utils/arm/assembler_thumb2.cc b/compiler/utils/arm/assembler_thumb2.cc
index 0f6c4f5..2ec5586 100644
--- a/compiler/utils/arm/assembler_thumb2.cc
+++ b/compiler/utils/arm/assembler_thumb2.cc
@@ -390,6 +390,10 @@
   EmitLiterals();
 }
 
+bool Thumb2Assembler::ShifterOperandCanAlwaysHold(uint32_t immediate) {
+  return ArmAssembler::ModifiedImmediate(immediate) != kInvalidModifiedImmediate;
+}
+
 bool Thumb2Assembler::ShifterOperandCanHold(Register rd ATTRIBUTE_UNUSED,
                                             Register rn ATTRIBUTE_UNUSED,
                                             Opcode opcode,

compiler/utils/arm/assembler_thumb2.h

diff --git a/compiler/utils/arm/assembler_thumb2.h b/compiler/utils/arm/assembler_thumb2.h
index a1a8927..cfed0ca 100644
--- a/compiler/utils/arm/assembler_thumb2.h
+++ b/compiler/utils/arm/assembler_thumb2.h
@@ -337,6 +337,8 @@
                              uint32_t immediate,
                              ShifterOperand* shifter_op) OVERRIDE;
 
+  bool ShifterOperandCanAlwaysHold(uint32_t immediate) OVERRIDE;
+
 
   static bool IsInstructionForExceptionHandling(uintptr_t pc);