Try to use STMDB/LDMIA instead of LDR/STR sequences whenever possible.

src/arm/builtins-arm.cc

Index: src/arm/builtins-arm.cc
diff --git a/src/arm/builtins-arm.cc b/src/arm/builtins-arm.cc
index 60f529003006afcf45981e2042229401b2729621..ae50d7965bd663d8e53792515d231e873d025032 100644
--- a/src/arm/builtins-arm.cc
+++ b/src/arm/builtins-arm.cc
@@ -294,10 +294,8 @@ static void CallRuntimePassFunction(MacroAssembler* masm,
   FrameScope scope(masm, StackFrame::INTERNAL);
   // Push a copy of the function onto the stack.
   __ push(r1);
-  // Push call kind information.
-  __ push(r5);
-  // Function is also the parameter to the runtime call.
-  __ push(r1);
+  // Push call kind information and function as parameter to the runtime call.
+  __ Push(r5, r1);
 
   __ CallRuntime(function_id, 1);
   // Restore call kind information.
@@ -406,9 +404,9 @@ static void Generate_JSConstructStubHelper(MacroAssembler* masm,
         __ strb(r4, constructor_count);
         __ b(ne, &allocate);
 
-        __ Push(r1, r2);
+        __ push(r1);
 
-        __ push(r1);  // constructor
+        __ Push(r2, r1);  // r1 = constructor
         // The call will replace the stub, so the countdown is only done once.
         __ CallRuntime(Runtime::kFinalizeInstanceSize, 1);
 
@@ -1208,8 +1206,7 @@ void Builtins::Generate_FunctionApply(MacroAssembler* masm) {
 
     // Out of stack space.
     __ ldr(r1, MemOperand(fp, kFunctionOffset));
-    __ push(r1);
-    __ push(r0);
+    __ Push(r1, r0);
     __ InvokeBuiltin(Builtins::APPLY_OVERFLOW, CALL_FUNCTION);
     // End of stack check.
 
@@ -1291,8 +1288,7 @@ void Builtins::Generate_FunctionApply(MacroAssembler* masm) {
     // r0: current argument index
     __ bind(&loop);
     __ ldr(r1, MemOperand(fp, kArgsOffset));
-    __ push(r1);
-    __ push(r0);
+    __ Push(r1, r0);
 
     // Call the runtime to access the property in the arguments array.
     __ CallRuntime(Runtime::kGetProperty, 2);