https://github.com/arsenm created 
https://github.com/llvm/llvm-project/pull/185166

Move opencl handling on top of clc into opencl generic, delete
amdgpu implementations in opencl.

>From 13e75dec4a6c320f4b8dd8faed6be05f209cb708 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <[email protected]>
Date: Fri, 6 Mar 2026 17:55:54 +0100
Subject: [PATCH] libclc: Avoid duplicated get_local_size/get_global_size
 functions

Move opencl handling on top of clc into opencl generic, delete
amdgpu implementations in opencl.
---
 libclc/opencl/lib/amdgcn-amdhsa/SOURCES       |  2 --
 .../amdgcn-amdhsa/workitem/get_global_size.cl | 20 --------------
 .../amdgcn-amdhsa/workitem/get_local_size.cl  | 26 -------------------
 libclc/opencl/lib/amdgcn/SOURCES              |  2 --
 .../lib/amdgcn/workitem/get_global_size.cl    | 13 ----------
 .../lib/amdgcn/workitem/get_local_size.cl     | 22 ----------------
 libclc/opencl/lib/generic/SOURCES             |  1 +
 .../workitem/get_local_size.cl                |  0
 libclc/opencl/lib/ptx-nvidiacl/SOURCES        |  1 -
 9 files changed, 1 insertion(+), 86 deletions(-)
 delete mode 100644 libclc/opencl/lib/amdgcn-amdhsa/SOURCES
 delete mode 100644 libclc/opencl/lib/amdgcn-amdhsa/workitem/get_global_size.cl
 delete mode 100644 libclc/opencl/lib/amdgcn-amdhsa/workitem/get_local_size.cl
 delete mode 100644 libclc/opencl/lib/amdgcn/workitem/get_global_size.cl
 delete mode 100644 libclc/opencl/lib/amdgcn/workitem/get_local_size.cl
 rename libclc/opencl/lib/{ptx-nvidiacl => generic}/workitem/get_local_size.cl 
(100%)

diff --git a/libclc/opencl/lib/amdgcn-amdhsa/SOURCES 
b/libclc/opencl/lib/amdgcn-amdhsa/SOURCES
deleted file mode 100644
index ee3a48ce2c474..0000000000000
--- a/libclc/opencl/lib/amdgcn-amdhsa/SOURCES
+++ /dev/null
@@ -1,2 +0,0 @@
-workitem/get_global_size.cl
-workitem/get_local_size.cl
diff --git a/libclc/opencl/lib/amdgcn-amdhsa/workitem/get_global_size.cl 
b/libclc/opencl/lib/amdgcn-amdhsa/workitem/get_global_size.cl
deleted file mode 100644
index f21a060849dbe..0000000000000
--- a/libclc/opencl/lib/amdgcn-amdhsa/workitem/get_global_size.cl
+++ /dev/null
@@ -1,20 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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 <amdhsa_abi.h>
-#include <clc/opencl/opencl-base.h>
-
-_CLC_DEF _CLC_OVERLOAD size_t get_global_size(uint dim) {
-  if (dim > 2)
-    return 1;
-  __constant amdhsa_implicit_kernarg_v5 *args =
-      (__constant amdhsa_implicit_kernarg_v5 *)
-          __builtin_amdgcn_implicitarg_ptr();
-  return args->block_count[dim] * (uint)args->group_size[dim] +
-         (uint)args->remainder[dim];
-}
diff --git a/libclc/opencl/lib/amdgcn-amdhsa/workitem/get_local_size.cl 
b/libclc/opencl/lib/amdgcn-amdhsa/workitem/get_local_size.cl
deleted file mode 100644
index ed1e17776361e..0000000000000
--- a/libclc/opencl/lib/amdgcn-amdhsa/workitem/get_local_size.cl
+++ /dev/null
@@ -1,26 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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 <amdhsa_abi.h>
-#include <clc/opencl/opencl-base.h>
-
-_CLC_DEF _CLC_OVERLOAD size_t get_local_size(uint dim) {
-  if (dim > 2)
-    return 1;
-
-  __constant amdhsa_implicit_kernarg_v5 *args =
-      (__constant amdhsa_implicit_kernarg_v5 *)
-          __builtin_amdgcn_implicitarg_ptr();
-
-  uint group_ids[3] = {__builtin_amdgcn_workgroup_id_x(),
-                       __builtin_amdgcn_workgroup_id_y(),
-                       __builtin_amdgcn_workgroup_id_z()};
-
-  return group_ids[dim] < args->block_count[dim] ? 
(size_t)args->group_size[dim]
-                                                 : 
(size_t)args->remainder[dim];
-}
diff --git a/libclc/opencl/lib/amdgcn/SOURCES b/libclc/opencl/lib/amdgcn/SOURCES
index ac72d8a00c9d0..e52f54789bfab 100644
--- a/libclc/opencl/lib/amdgcn/SOURCES
+++ b/libclc/opencl/lib/amdgcn/SOURCES
@@ -3,7 +3,5 @@ subgroup/subgroup.cl
 synchronization/sub_group_barrier.cl
 workitem/get_global_offset.cl
 workitem/get_group_id.cl
-workitem/get_global_size.cl
 workitem/get_local_id.cl
-workitem/get_local_size.cl
 workitem/get_work_dim.cl
diff --git a/libclc/opencl/lib/amdgcn/workitem/get_global_size.cl 
b/libclc/opencl/lib/amdgcn/workitem/get_global_size.cl
deleted file mode 100644
index eca7199a766fc..0000000000000
--- a/libclc/opencl/lib/amdgcn/workitem/get_global_size.cl
+++ /dev/null
@@ -1,13 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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 <clc/workitem/clc_get_global_size.h>
-
-_CLC_DEF _CLC_OVERLOAD size_t get_global_size(uint dim) {
-  return __clc_get_global_size(dim);
-}
diff --git a/libclc/opencl/lib/amdgcn/workitem/get_local_size.cl 
b/libclc/opencl/lib/amdgcn/workitem/get_local_size.cl
deleted file mode 100644
index 34e4f2f1b4c19..0000000000000
--- a/libclc/opencl/lib/amdgcn/workitem/get_local_size.cl
+++ /dev/null
@@ -1,22 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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 <clc/opencl/opencl-base.h>
-
-_CLC_DEF _CLC_OVERLOAD size_t get_local_size(uint dim) {
-  switch (dim) {
-  case 0:
-    return __builtin_amdgcn_workgroup_size_x();
-  case 1:
-    return __builtin_amdgcn_workgroup_size_y();
-  case 2:
-    return __builtin_amdgcn_workgroup_size_z();
-  default:
-    return 1;
-  }
-}
diff --git a/libclc/opencl/lib/generic/SOURCES 
b/libclc/opencl/lib/generic/SOURCES
index dd51d5c084d51..5add00020d6ca 100644
--- a/libclc/opencl/lib/generic/SOURCES
+++ b/libclc/opencl/lib/generic/SOURCES
@@ -205,4 +205,5 @@ synchronization/work_group_barrier.cl
 workitem/get_enqueued_local_size.cl
 workitem/get_global_id.cl
 workitem/get_global_size.cl
+workitem/get_local_size.cl
 workitem/get_num_groups.cl
diff --git a/libclc/opencl/lib/ptx-nvidiacl/workitem/get_local_size.cl 
b/libclc/opencl/lib/generic/workitem/get_local_size.cl
similarity index 100%
rename from libclc/opencl/lib/ptx-nvidiacl/workitem/get_local_size.cl
rename to libclc/opencl/lib/generic/workitem/get_local_size.cl
diff --git a/libclc/opencl/lib/ptx-nvidiacl/SOURCES 
b/libclc/opencl/lib/ptx-nvidiacl/SOURCES
index b8e8f64b5802a..3ece564c9760e 100644
--- a/libclc/opencl/lib/ptx-nvidiacl/SOURCES
+++ b/libclc/opencl/lib/ptx-nvidiacl/SOURCES
@@ -3,7 +3,6 @@ workitem/get_global_id.cl
 workitem/get_group_id.cl
 workitem/get_local_id.cl
 workitem/get_local_linear_id.cl
-workitem/get_local_size.cl
 workitem/get_max_sub_group_size.cl
 workitem/get_num_sub_groups.cl
 workitem/get_sub_group_id.cl

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