Cleanup ARM load/store wide and remove unused param s_reg.

Use a single LDRD/VLDR instruction for wide load/store on
ARM, adjust the base pointer if needed. Remove unused
parameter s_reg from LoadBaseDisp(), LoadBaseIndexedDisp()
and StoreBaseIndexedDisp() on all architectures.

Change-Id: I25a9a42d523a68addbc11abe44ddc55a4401df98
diff --git a/compiler/dex/quick/mir_to_lir.cc b/compiler/dex/quick/mir_to_lir.cc
index 9915ff6..d10296f 100644
--- a/compiler/dex/quick/mir_to_lir.cc
+++ b/compiler/dex/quick/mir_to_lir.cc
@@ -59,7 +59,7 @@
       RegStorage new_regs = AllocTypedTempWide(false, kAnyReg);
       reg_arg_low = new_regs.GetLow();
       reg_arg_high = new_regs.GetHigh();
-      LoadBaseDisp(TargetReg(kSp), offset, new_regs, k64, INVALID_SREG);
+      LoadBaseDisp(TargetReg(kSp), offset, new_regs, k64);
     } else {
       reg_arg_high = AllocTemp();
       int offset_high = offset + sizeof(uint32_t);
@@ -112,7 +112,7 @@
       OpRegCopy(rl_dest.reg.GetHigh(), reg_arg_high);
       Load32Disp(TargetReg(kSp), offset, rl_dest.reg.GetLow());
     } else {
-      LoadBaseDisp(TargetReg(kSp), offset, rl_dest.reg, k64, INVALID_SREG);
+      LoadBaseDisp(TargetReg(kSp), offset, rl_dest.reg, k64);
     }
   }
 }
@@ -137,7 +137,7 @@
   LockArg(data.object_arg);
   RegLocation rl_dest = wide ? GetReturnWide(double_or_float) : GetReturn(double_or_float);
   RegStorage reg_obj = LoadArg(data.object_arg);
-  LoadBaseDisp(reg_obj, data.field_offset, rl_dest.reg, size, INVALID_SREG);
+  LoadBaseDisp(reg_obj, data.field_offset, rl_dest.reg, size);
   if (data.is_volatile) {
     // Without context sensitive analysis, we must issue the most conservative barriers.
     // In this case, either a load or store may follow so we issue both barriers.