ART: Use jalr instead of jr for Mips

Use the jalr instruction instead of jr in stubs and compiled code.

Change-Id: Idacc5167a5bb0113dc2e7716e4767e5ed07b5e0b
diff --git a/compiler/utils/mips/assembler_mips.cc b/compiler/utils/mips/assembler_mips.cc
index 8001dcd..b5437b0 100644
--- a/compiler/utils/mips/assembler_mips.cc
+++ b/compiler/utils/mips/assembler_mips.cc
@@ -332,7 +332,7 @@
 }
 
 void MipsAssembler::Jr(Register rs) {
-  EmitR(0, rs, static_cast<Register>(0), static_cast<Register>(0), 0, 0x08);
+  EmitR(0, rs, static_cast<Register>(0), static_cast<Register>(0), 0, 0x09);  // Jalr zero, rs
   Nop();
 }
 
@@ -420,7 +420,7 @@
 }
 
 void MipsAssembler::Move(Register rt, Register rs) {
-  EmitI(0x8, rs, rt, 0);
+  EmitI(0x9, rs, rt, 0);    // Addiu
 }
 
 void MipsAssembler::Clear(Register rt) {
@@ -447,11 +447,11 @@
 }
 
 void MipsAssembler::AddConstant(Register rt, Register rs, int32_t value) {
-  Addi(rt, rs, value);
+  Addiu(rt, rs, value);
 }
 
 void MipsAssembler::LoadImmediate(Register rt, int32_t value) {
-  Addi(rt, ZERO, value);
+  Addiu(rt, ZERO, value);
 }
 
 void MipsAssembler::EmitLoad(ManagedRegister m_dst, Register src_register, int32_t src_offset,