ARM: Remove a bunch of spilled scopes. Still a lot to go.

src/arm/virtual-frame-arm.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 463 matching lines @@
       __ Push(r0, r1);
       __ mov(r0, r1);
       break;
     default:
       UNREACHABLE();
   }
   top_of_stack_state_ = NO_TOS_REGISTERS;
 }
 
 
+void VirtualFrame::SpillAllButCopyTOSToR1() {
+  switch (top_of_stack_state_) {
+    case NO_TOS_REGISTERS:
+      __ ldr(r1, MemOperand(sp, 0));
+      break;
+    case R0_TOS:
+      __ push(r0);
+      __ mov(r1, r0);
+      break;
+    case R1_TOS:
+      __ push(r1);
+      break;
+    case R0_R1_TOS:
+      __ Push(r1, r0);
+      __ mov(r1, r0);
+      break;
+    case R1_R0_TOS:
+      __ Push(r0, r1);
+      break;
+    default:
+      UNREACHABLE();
+  }
+  top_of_stack_state_ = NO_TOS_REGISTERS;
+}
+
+
 void VirtualFrame::SpillAllButCopyTOSToR1R0() {
   switch (top_of_stack_state_) {
     case NO_TOS_REGISTERS:
       __ ldr(r1, MemOperand(sp, 0));
       __ ldr(r0, MemOperand(sp, kPointerSize));
       break;
     case R0_TOS:
       __ push(r0);
       __ mov(r1, r0);
       __ ldr(r0, MemOperand(sp, kPointerSize));
@@ skipping 22 matching lines @@
     top_of_stack_state_ = kStateAfterPush[top_of_stack_state_];
     Register answer = kTopRegister[top_of_stack_state_];
     __ pop(answer);
     return answer;
   } else {
     return kTopRegister[top_of_stack_state_];
   }
 }
 
 
+Register VirtualFrame::Peek2() {
+  AssertIsNotSpilled();
+  switch(top_of_stack_state_) {
+    case NO_TOS_REGISTERS:
+    case R0_TOS:
+    case R0_R1_TOS:
+      MergeTOSTo(R0_R1_TOS);
+      return r0;
+    case R1_TOS:
+    case R1_R0_TOS:
+      MergeTOSTo(R1_R0_TOS);
+      return r1;
+  }
+  UNREACHABLE();
+  return no_reg;
+}
+
+
 void VirtualFrame::Dup() {
   if (SpilledScope::is_spilled()) {
     __ ldr(ip, MemOperand(sp, 0));
     __ push(ip);
   } else {
     switch (top_of_stack_state_) {
       case NO_TOS_REGISTERS:
         __ ldr(r0, MemOperand(sp, 0));
         top_of_stack_state_ = R0_TOS;
         break;
@@ skipping 244 matching lines @@
       break;
   }
   ASSERT(register_allocation_map_ == 0);  // Not yet implemented.
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM