Add AddImmediate(reg, int) to ARM64 assembler

runtime/vm/assembler_arm64.cc

Index: runtime/vm/assembler_arm64.cc
diff --git a/runtime/vm/assembler_arm64.cc b/runtime/vm/assembler_arm64.cc
index af6c89159241cc89f54417ad7da380a1607ddfaa..973e704a27938b0e652bcc8660dcec5bc9b6986e 100644
--- a/runtime/vm/assembler_arm64.cc
+++ b/runtime/vm/assembler_arm64.cc
@@ -1035,7 +1035,7 @@ void Assembler::ReserveAlignedFrameSpace(intptr_t frame_space) {
   // Reserve space for arguments and align frame before entering
   // the C++ world.
   if (frame_space != 0) {
-    AddImmediate(SP, SP, -frame_space);
+    AddImmediate(SP, -frame_space);
   }
   if (OS::ActivationFrameAlignment() > 1) {
     andi(SP, SP, Immediate(~(OS::ActivationFrameAlignment() - 1)));
@@ -1133,7 +1133,7 @@ void Assembler::EnterDartFrame(intptr_t frame_size, Register new_pp) {
 
   // Reserve space.
   if (frame_size > 0) {
-    AddImmediate(SP, SP, -frame_size);
+    AddImmediate(SP, -frame_size);
   }
 }
 
@@ -1150,7 +1150,7 @@ void Assembler::EnterOsrFrame(intptr_t extra_size, Register new_pp) {
   LoadPoolPointer();
 
   if (extra_size > 0) {
-    AddImmediate(SP, SP, -extra_size);
+    AddImmediate(SP, -extra_size);
   }
 }
 
@@ -1282,7 +1282,7 @@ void Assembler::MaybeTraceAllocation(intptr_t cid,
   intptr_t table_offset =
       Isolate::class_table_offset() + ClassTable::TableOffsetFor(cid);
   ldr(temp_reg, Address(temp_reg, table_offset));
-  AddImmediate(temp_reg, temp_reg, state_offset);
+  AddImmediate(temp_reg, state_offset);
   ldr(temp_reg, Address(temp_reg, 0));
   tsti(temp_reg, Immediate(ClassHeapStats::TraceAllocationMask()));
   b(trace, NE);
@@ -1299,7 +1299,7 @@ void Assembler::UpdateAllocationStats(intptr_t cid, Heap::Space space) {
   ldr(TMP, Address(TMP2, table_offset));
   AddImmediate(TMP2, TMP, counter_offset);
   ldr(TMP, Address(TMP2, 0));
-  AddImmediate(TMP, TMP, 1);
+  AddImmediate(TMP, 1);
   str(TMP, Address(TMP2, 0));
 }
 
@@ -1323,7 +1323,7 @@ void Assembler::UpdateAllocationStatsWithSize(intptr_t cid,
   ldr(TMP, Address(TMP2, table_offset));
   AddImmediate(TMP2, TMP, class_offset);
   ldr(TMP, Address(TMP2, count_field_offset));
-  AddImmediate(TMP, TMP, 1);
+  AddImmediate(TMP, 1);
   str(TMP, Address(TMP2, count_field_offset));
   ldr(TMP, Address(TMP2, size_field_offset));
   add(TMP, TMP, Operand(size_reg));
@@ -1360,7 +1360,7 @@ void Assembler::TryAllocate(const Class& cls,
     str(instance_reg, Address(temp_reg, Heap::TopOffset(space)));
 
     ASSERT(instance_size >= kHeapObjectTag);
-    AddImmediate(instance_reg, instance_reg, -instance_size + kHeapObjectTag);
+    AddImmediate(instance_reg, -instance_size + kHeapObjectTag);
     NOT_IN_PRODUCT(UpdateAllocationStats(cls.id(), space));
 
     uword tags = 0;
@@ -1496,7 +1496,7 @@ void Assembler::LoadElementAddressForRegIndex(Register address,
     add(address, array, Operand(index, LSL, shift));
   }
   if (offset != 0) {
-    AddImmediate(address, address, offset);
+    AddImmediate(address, offset);
   }
 }