Shorten live ranges of argument subexpressions.

src/arm/lithium-codegen-arm.cc

 // Copyright 2010 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 1591 matching lines @@
   Abort("DoCallFunction unimplemented.");
 }
 
 
 void LCodeGen::DoCallGlobal(LCallGlobal* instr) {
   Abort("DoCallGlobal unimplemented.");
 }
 
 
 void LCodeGen::DoCallKnownGlobal(LCallKnownGlobal* instr) {
+  ASSERT(ToRegister(instr->input()).is(r0));
   ASSERT(ToRegister(instr->result()).is(r0));
+
+  // The receiver slot in the outgoing arguments holds the global object,
+  // because that's what the unoptimized code expects if we deoptimize the
+  // argument subexpressions.  Patch it to the global receiver before making
+  // the call.
+  int arity = instr->arity();  // Arity does not include receiver.
+  __ str(r0, MemOperand(sp, arity * kPointerSize));
+
   __ mov(r1, Operand(instr->target()));
-  CallKnownFunction(instr->target(), instr->arity(), instr);
+  CallKnownFunction(instr->target(), arity, instr);
 }
 
 
 void LCodeGen::DoCallNew(LCallNew* instr) {
   ASSERT(ToRegister(instr->input()).is(r1));
   ASSERT(ToRegister(instr->result()).is(r0));
 
   Handle<Code> builtin(Builtins::builtin(Builtins::JSConstructCall));
   __ mov(r0, Operand(instr->arity()));
   CallCode(builtin, RelocInfo::CONSTRUCT_CALL, instr);
@@ skipping 533 matching lines @@
 
 
 void LCodeGen::DoOsrEntry(LOsrEntry* instr) {
   Abort("DoOsrEntry unimplemented.");
 }
 
 
 #undef __
 
 } }  // namespace v8::internal