[SYCL][LIBCLC][HIP] Add get_sub_group_local_id() to HIP libclc (#4775)

Author: t4c1

libclc/amdgcn-amdhsa/libspirv/SOURCES

@@ -12,5 +12,6 @@ workitem/get_num_groups.cl
 workitem/get_max_sub_group_size.cl
 workitem/get_num_sub_groups.cl
 workitem/get_sub_group_id.cl
+workitem/get_sub_group_local_id.cl
 workitem/get_sub_group_size.cl
 misc/sub_group_shuffle.cl

libclc/amdgcn-amdhsa/libspirv/workitem/get_sub_group_id.cl

@@ -14,7 +14,6 @@ _CLC_DEF _CLC_OVERLOAD uint __spirv_SubgroupId() {
   size_t id_z = __spirv_LocalInvocationId_z();
   size_t size_x = __spirv_WorkgroupSize_x();
   size_t size_y = __spirv_WorkgroupSize_y();
-  size_t size_z = __spirv_WorkgroupSize_z();
   uint sg_size = __spirv_SubgroupMaxSize();
   return (id_z * size_y * size_x + id_y * size_x + id_x) / sg_size;
 }

libclc/amdgcn-amdhsa/libspirv/workitem/get_sub_group_local_id.cl

@@ -0,0 +1,19 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <spirv/spirv.h>
+
+_CLC_DEF _CLC_OVERLOAD uint __spirv_SubgroupLocalInvocationId() {
+  size_t id_x = __spirv_LocalInvocationId_x();
+  size_t id_y = __spirv_LocalInvocationId_y();
+  size_t id_z = __spirv_LocalInvocationId_z();
+  size_t size_x = __spirv_WorkgroupSize_x();
+  size_t size_y = __spirv_WorkgroupSize_y();
+  uint sg_size = __spirv_SubgroupMaxSize();
+  return (id_z * size_y * size_x + id_y * size_x + id_x) % sg_size;
+}