Index: include/clang/Basic/DiagnosticSemaKinds.td
===================================================================
--- include/clang/Basic/DiagnosticSemaKinds.td
+++ include/clang/Basic/DiagnosticSemaKinds.td
@@ -7769,7 +7769,7 @@
 def err_opencl_builtin_pipe_arg_num : Error<
   "invalid number of arguments to function: %0">;
 def err_opencl_builtin_pipe_invalid_arg : Error<
-  "invalid argument type to function %0 (expecting %1)">;
+  "invalid argument type to function %0 (expecting %1 having %2)">;
 def err_opencl_builtin_pipe_invalid_access_modifier : Error<
   "invalid pipe access modifier (expecting %0)">;
 
Index: lib/Sema/SemaChecking.cpp
===================================================================
--- lib/Sema/SemaChecking.cpp
+++ lib/Sema/SemaChecking.cpp
@@ -323,10 +323,12 @@
   const PointerType *ArgTy = ArgIdx->getType()->getAs<PointerType>();
   // The Idx argument should be a pointer and the type of the pointer and
   // the type of pipe element should also be the same.
-  if (!ArgTy || S.Context.hasSameType(EltTy, ArgTy->getPointeeType())) {
+  if (!ArgTy ||
+      !S.Context.hasSameType(
+          EltTy, ArgTy->getPointeeType()->getCanonicalTypeInternal())) {
     S.Diag(Call->getLocStart(), diag::err_opencl_builtin_pipe_invalid_arg)
         << Call->getDirectCallee() << S.Context.getPointerType(EltTy)
-        << ArgIdx->getSourceRange();
+        << ArgIdx->getType() << ArgIdx->getSourceRange();
     return true;
   }
   return false;
@@ -359,7 +361,7 @@
     if (!Call->getArg(1)->getType()->isReserveIDT()) {
       S.Diag(Call->getLocStart(), diag::err_opencl_builtin_pipe_invalid_arg)
           << Call->getDirectCallee() << S.Context.OCLReserveIDTy
-          << Call->getArg(1)->getSourceRange();
+          << Call->getArg(1)->getType() << Call->getArg(1)->getSourceRange();
       return true;
     }
 
@@ -369,7 +371,7 @@
         !Arg2->getType()->isUnsignedIntegerType()) {
       S.Diag(Call->getLocStart(), diag::err_opencl_builtin_pipe_invalid_arg)
           << Call->getDirectCallee() << S.Context.UnsignedIntTy
-          << Arg2->getSourceRange();
+          << Arg2->getType() << Arg2->getSourceRange();
       return true;
     }
 
@@ -403,7 +405,7 @@
       !Call->getArg(1)->getType()->isUnsignedIntegerType()) {
     S.Diag(Call->getLocStart(), diag::err_opencl_builtin_pipe_invalid_arg)
         << Call->getDirectCallee() << S.Context.UnsignedIntTy
-        << Call->getArg(1)->getSourceRange();
+        << Call->getArg(1)->getType() << Call->getArg(1)->getSourceRange();
     return true;
   }
 
@@ -426,7 +428,7 @@
   if (!Call->getArg(1)->getType()->isReserveIDT()) {
     S.Diag(Call->getLocStart(), diag::err_opencl_builtin_pipe_invalid_arg)
         << Call->getDirectCallee() << S.Context.OCLReserveIDTy
-        << Call->getArg(1)->getSourceRange();
+        << Call->getArg(1)->getType() << Call->getArg(1)->getSourceRange();
     return true;
   }
 
Index: test/SemaOpenCL/invalid-pipe-builtin-cl2.0.cl
===================================================================
--- test/SemaOpenCL/invalid-pipe-builtin-cl2.0.cl
+++ test/SemaOpenCL/invalid-pipe-builtin-cl2.0.cl
@@ -7,20 +7,20 @@
   // read/write_pipe
   read_pipe(tmp, p);    // expected-error {{first argument to 'read_pipe' must be a pipe type}}
   read_pipe(p);   // expected-error {{invalid number of arguments to function: 'read_pipe'}}
-  read_pipe(p, tmp, tmp, ptr);   // expected-error {{invalid argument type to function 'read_pipe' (expecting 'reserve_id_t')}}
-  read_pipe(p, rid, rid, ptr);   // expected-error {{invalid argument type to function 'read_pipe' (expecting 'unsigned int')}}
-  read_pipe(p, tmp);   // expected-error {{invalid argument type to function 'read_pipe' (expecting 'int *')}}
+  read_pipe(p, tmp, tmp, ptr);   // expected-error {{invalid argument type to function 'read_pipe' (expecting 'reserve_id_t' having 'int')}}
+  read_pipe(p, rid, rid, ptr);   // expected-error {{invalid argument type to function 'read_pipe' (expecting 'unsigned int' having 'reserve_id_t')}}
+  read_pipe(p, tmp);   // expected-error {{invalid argument type to function 'read_pipe' (expecting 'int *' having 'int')}}
   write_pipe(p, ptr);    // expected-error {{invalid pipe access modifier (expecting write_only)}}
   write_pipe(p, rid, tmp, ptr);    // expected-error {{invalid pipe access modifier (expecting write_only)}}
 
   // reserve_read/write_pipe
-  reserve_read_pipe(p, ptr);    // expected-error{{invalid argument type to function 'reserve_read_pipe' (expecting 'unsigned int')}}
+  reserve_read_pipe(p, ptr);    // expected-error{{invalid argument type to function 'reserve_read_pipe' (expecting 'unsigned int' having '__global int *')}}
   work_group_reserve_read_pipe(tmp, tmp);    // expected-error{{first argument to 'work_group_reserve_read_pipe' must be a pipe type}}
   sub_group_reserve_write_pipe(p, tmp);    // expected-error{{invalid pipe access modifier (expecting write_only)}}
 
   // commit_read/write_pipe
   commit_read_pipe(tmp, rid);    // expected-error{{first argument to 'commit_read_pipe' must be a pipe type}}
-  work_group_commit_read_pipe(p, tmp);    // expected-error{{invalid argument type to function 'work_group_commit_read_pipe' (expecting 'reserve_id_t')}}
+  work_group_commit_read_pipe(p, tmp);    // expected-error{{invalid argument type to function 'work_group_commit_read_pipe' (expecting 'reserve_id_t' having 'int')}}
   sub_group_commit_write_pipe(p, tmp);    // expected-error{{invalid pipe access modifier (expecting write_only)}}
 }
 
@@ -31,20 +31,20 @@
   // read/write_pipe
   write_pipe(tmp, p);    // expected-error {{first argument to 'write_pipe' must be a pipe type}}
   write_pipe(p);   // expected-error {{invalid number of arguments to function: 'write_pipe'}}
-  write_pipe(p, tmp, tmp, ptr);   // expected-error {{invalid argument type to function 'write_pipe' (expecting 'reserve_id_t')}}
-  write_pipe(p, rid, rid, ptr);   // expected-error {{invalid argument type to function 'write_pipe' (expecting 'unsigned int')}}
-  write_pipe(p, tmp);   // expected-error {{invalid argument type to function 'write_pipe' (expecting 'int *')}}
+  write_pipe(p, tmp, tmp, ptr);   // expected-error {{invalid argument type to function 'write_pipe' (expecting 'reserve_id_t' having 'int')}}
+  write_pipe(p, rid, rid, ptr);   // expected-error {{invalid argument type to function 'write_pipe' (expecting 'unsigned int' having 'reserve_id_t')}}
+  write_pipe(p, tmp);   // expected-error {{invalid argument type to function 'write_pipe' (expecting 'int *' having 'int')}}
   read_pipe(p, ptr);    // expected-error {{invalid pipe access modifier (expecting read_only)}}
   read_pipe(p, rid, tmp, ptr);    // expected-error {{invalid pipe access modifier (expecting read_only)}}
 
   // reserve_read/write_pipe
-  reserve_write_pipe(p, ptr);    // expected-error{{invalid argument type to function 'reserve_write_pipe' (expecting 'unsigned int')}}
+  reserve_write_pipe(p, ptr);    // expected-error{{invalid argument type to function 'reserve_write_pipe' (expecting 'unsigned int' having '__global int *')}}
   work_group_reserve_write_pipe(tmp, tmp);    // expected-error{{first argument to 'work_group_reserve_write_pipe' must be a pipe type}}
   sub_group_reserve_read_pipe(p, tmp);    // expected-error{{invalid pipe access modifier (expecting read_only)}}
 
   // commit_read/write_pipe
   commit_write_pipe(tmp, rid);    // expected-error{{first argument to 'commit_write_pipe' must be a pipe type}}
-  work_group_commit_write_pipe(p, tmp);    // expected-error{{invalid argument type to function 'work_group_commit_write_pipe' (expecting 'reserve_id_t')}}
+  work_group_commit_write_pipe(p, tmp);    // expected-error{{invalid argument type to function 'work_group_commit_write_pipe' (expecting 'reserve_id_t' having 'int')}}
   sub_group_commit_read_pipe(p, tmp);    // expected-error{{invalid pipe access modifier (expecting read_only)}}
 }