Index: include/clang/Sema/Overload.h
===================================================================
--- include/clang/Sema/Overload.h
+++ include/clang/Sema/Overload.h
@@ -98,6 +98,7 @@
     ICR_Exact_Match = 0,         ///< Exact Match
     ICR_Promotion,               ///< Promotion
     ICR_Conversion,              ///< Conversion
+    ICR_OCL_Scalar_Widening,     ///< OpenCL Scalar Widening
     ICR_Complex_Real_Conversion, ///< Complex <-> Real conversion
     ICR_Writeback_Conversion,    ///< ObjC ARC writeback conversion
     ICR_C_Conversion,            ///< Conversion only allowed in the C standard.
Index: lib/Sema/SemaOverload.cpp
===================================================================
--- lib/Sema/SemaOverload.cpp
+++ lib/Sema/SemaOverload.cpp
@@ -131,7 +131,7 @@
     ICR_Conversion,
     ICR_Conversion,
     ICR_Conversion,
-    ICR_Conversion,
+    ICR_OCL_Scalar_Widening,
     ICR_Complex_Real_Conversion,
     ICR_Conversion,
     ICR_Conversion,
Index: test/SemaOpenCL/overload_addrspace_resolution.cl
===================================================================
--- test/SemaOpenCL/overload_addrspace_resolution.cl
+++ test/SemaOpenCL/overload_addrspace_resolution.cl
@@ -1,5 +1,11 @@
-// RUN: %clang_cc1 -cl-std=CL2.0 -emit-llvm -o - -triple x86_64-unknown-unknown %s | FileCheck %s
+// RUN: %clang_cc1 -cl-std=CL2.0 -emit-llvm -o - -triple spir-unknown-unknown %s | FileCheck %s
 
+typedef short short4 __attribute__((ext_vector_type(4)));
+
+// CHECK-DAG: declare spir_func <4 x i16> @_Z5clampDv4_sS_S_(<4 x i16>, <4 x i16>, <4 x i16>)
+short4 __attribute__ ((overloadable)) clamp(short4 x, short4 minval, short4 maxval);
+// CHECK-DAG: declare spir_func <4 x i16> @_Z5clampDv4_sss(<4 x i16>, i16 signext, i16 signext)
+short4 __attribute__ ((overloadable)) clamp(short4 x, short minval, short maxval);
 void __attribute__((overloadable)) foo(global int *a, global int *b);
 void __attribute__((overloadable)) foo(generic int *a, generic int *b);
 void __attribute__((overloadable)) bar(generic int *global *a, generic int *global *b);
@@ -10,20 +16,25 @@
   global int *b;
   generic int *c;
   local int *d;
+  short4 e0=0;
   generic int *generic *gengen;
   generic int *local *genloc;
   generic int *global *genglob;
-  // CHECK: call void @_Z3fooPU8CLglobaliS0_(i32* undef, i32* undef)
+  // CHECK-DAG: call spir_func void @_Z3fooPU3AS1iS0_(i32 addrspace(1)* undef, i32 addrspace(1)* undef)
   foo(a, b);
-  // CHECK: call void @_Z3fooPU9CLgenericiS0_(i32* undef, i32* undef)
+  // CHECK-DAG: call spir_func void @_Z3fooPU3AS4iS0_(i32 addrspace(4)* undef, i32 addrspace(4)* undef)
   foo(b, c);
-  // CHECK: call void @_Z3fooPU9CLgenericiS0_(i32* undef, i32* undef)
+  // CHECK-DAG: call spir_func void @_Z3fooPU3AS4iS0_(i32 addrspace(4)* undef, i32 addrspace(4)* undef)
   foo(a, d);
 
-  // CHECK: call void @_Z3barPU9CLgenericPU9CLgenericiS2_(i32** undef, i32** undef)
+  // CHECK-DAG: call spir_func void @_Z3barPU3AS4PU3AS4iS2_(i32 addrspace(4)* addrspace(4)* undef, i32 addrspace(4)* addrspace(4)* undef)
   bar(gengen, genloc);
-  // CHECK: call void @_Z3barPU9CLgenericPU9CLgenericiS2_(i32** undef, i32** undef)
+  // CHECK-DAG: call spir_func void @_Z3barPU3AS4PU3AS4iS2_(i32 addrspace(4)* addrspace(4)* undef, i32 addrspace(4)* addrspace(4)* undef)
   bar(gengen, genglob);
-  // CHECK: call void @_Z3barPU8CLglobalPU9CLgenericiS2_(i32** undef, i32** undef)
+  // CHECK-DAG: call spir_func void @_Z3barPU3AS1PU3AS4iS2_(i32 addrspace(4)* addrspace(1)* undef, i32 addrspace(4)* addrspace(1)* undef)
   bar(genglob, genglob);
+  // CHECK-DAG: call spir_func <4 x i16> @_Z5clampDv4_sss(<4 x i16> zeroinitializer, i16 signext 0, i16 signext 255)
+  clamp(e0, 0, 255);
+  // CHECK-DAG: call spir_func <4 x i16> @_Z5clampDv4_sS_S_(<4 x i16> zeroinitializer, <4 x i16> zeroinitializer, <4 x i16> zeroinitializer)
+  clamp(e0, e0, e0);
 }