Shorten live ranges of argument subexpressions.

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index 533d32c747427cb9ee3a9aad1d3fb54af98c3b62..bc3d5513133429b3cc1338813c6f97a7010918e5 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -1609,9 +1609,18 @@ void LCodeGen::DoCallGlobal(LCallGlobal* instr) {
 
 
 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);
 }