Improve Thumb2 bitwise operations.

Allow embedding constants in AND, ORR, EOR. Add ORN to
assembler, use BIC and ORN for AND and ORR when needed.

Change-Id: I24d69ecc7ce6992b9c5eb7a313ff47a942de9661

1 files changed, 7 insertions, 0 deletions

diff --git a/compiler/utils/arm/assembler_arm.h b/compiler/utils/arm/assembler_arm.h
index 967b191d32..bb771133be 100644
--- a/compiler/utils/arm/assembler_arm.h
+++ b/compiler/utils/arm/assembler_arm.h
@@ -470,6 +470,13 @@ class ArmAssembler : public Assembler {
     orr(rd, rn, so, cond, kCcSet);
   }
 
+  virtual void orn(Register rd, Register rn, const ShifterOperand& so,
+                   Condition cond = AL, SetCc set_cc = kCcDontCare) = 0;
+
+  virtual void orns(Register rd, Register rn, const ShifterOperand& so, Condition cond = AL) {
+    orn(rd, rn, so, cond, kCcSet);
+  }
+
   virtual void mov(Register rd, const ShifterOperand& so,
                    Condition cond = AL, SetCc set_cc = kCcDontCare) = 0;