[strong] Check arity of functions

src/mips/builtins-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_MIPS
 
@@ skipping 1724 matching lines @@
     __ lw(t0, MemOperand(a0));
     __ push(t0);
     __ Branch(USE_DELAY_SLOT, &copy, ne, a0, Operand(a2));
     __ addiu(a0, a0, -kPointerSize);  // In delay slot.
 
     __ jmp(&invoke);
   }
 
   {  // Too few parameters: Actual < expected.
     __ bind(&too_few);
+
+    // If the function is strong we need to throw an error.
+    Label weak_function;
+    __ lw(t1, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
+    __ lw(t1, FieldMemOperand(t1, SharedFunctionInfo::kCompilerHintsOffset));
+    __ And(t2, t1, Operand(1 << (SharedFunctionInfo::kStrongModeFunction +
+                                 kSmiTagSize)));
+    __ Branch(&weak_function, eq, t2, Operand(zero_reg));
+
+    {
+      FrameScope frame(masm, StackFrame::MANUAL);
+      EnterArgumentsAdaptorFrame(masm);
+      __ CallRuntime(Runtime::kThrowStrongModeTooFewArguments, 0);
+    }
+
+    __ bind(&weak_function);
     EnterArgumentsAdaptorFrame(masm);
 
     // Calculate copy start address into a0 and copy end address is fp.
     // a0: actual number of arguments as a smi
     // a1: function
     // a2: expected number of arguments
     // a3: code entry to call
     __ sll(a0, a0, kPointerSizeLog2 - kSmiTagSize);
     __ Addu(a0, fp, a0);
     // Adjust for return address and receiver.
@@ skipping 60 matching lines @@
     __ break_(0xCC);
   }
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS