update calls to objectsize intrinsic to match LLVM r156473
add a test for -fbounds-checking code generation

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156474 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index bf180f6..f995614 100644
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -346,11 +346,12 @@
     assert(CI);
     uint64_t val = CI->getZExtValue();
     CI = ConstantInt::get(Builder.getInt1Ty(), (val & 0x2) >> 1);    
+    Value *Runtime = Builder.getInt32(0);  // FIXME: use BoundsChecking here?
     
     Value *F = CGM.getIntrinsic(Intrinsic::objectsize, ResType);
-    return RValue::get(Builder.CreateCall2(F,
+    return RValue::get(Builder.CreateCall3(F,
                                            EmitScalarExpr(E->getArg(0)),
-                                           CI));
+                                           CI, Runtime));
   }
   case Builtin::BI__builtin_prefetch: {
     Value *Locality, *RW, *Address = EmitScalarExpr(E->getArg(0));