2 files changed, 0 insertions, 190 deletions
diff --git a/libc/src/__support/GPU/amdgpu/CMakeLists.txt b/libc/src/__support/GPU/amdgpu/CMakeLists.txt
deleted file mode 100644
index f2b98fc03b21..000000000000
--- a/libc/src/__support/GPU/amdgpu/CMakeLists.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-add_header_library(
-  amdgpu_utils
-  HDRS
-    utils.h
-  DEPENDS
-    libc.src.__support.common
-)
diff --git a/libc/src/__support/GPU/amdgpu/utils.h b/libc/src/__support/GPU/amdgpu/utils.h
deleted file mode 100644
index 6ab95403ca38..000000000000
--- a/libc/src/__support/GPU/amdgpu/utils.h
+++ /dev/null
@@ -1,183 +0,0 @@
-//===-------------- AMDGPU implementation of GPU utils ----------*- C++ -*-===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIBC_SRC___SUPPORT_GPU_AMDGPU_IO_H
-#define LLVM_LIBC_SRC___SUPPORT_GPU_AMDGPU_IO_H
-
-#include "src/__support/common.h"
-#include "src/__support/macros/config.h"
-
-#include <stdint.h>
-
-namespace LIBC_NAMESPACE_DECL {
-namespace gpu {
-
-/// Type aliases to the address spaces used by the AMDGPU backend.
-template <typename T> using Private = [[clang::opencl_private]] T;
-template <typename T> using Constant = [[clang::opencl_constant]] T;
-template <typename T> using Local = [[clang::opencl_local]] T;
-template <typename T> using Global = [[clang::opencl_global]] T;
-
-/// Returns the number of workgroups in the 'x' dimension of the grid.
-LIBC_INLINE uint32_t get_num_blocks_x() {
-  return __builtin_amdgcn_grid_size_x() / __builtin_amdgcn_workgroup_size_x();
-}
-
-/// Returns the number of workgroups in the 'y' dimension of the grid.
-LIBC_INLINE uint32_t get_num_blocks_y() {
-  return __builtin_amdgcn_grid_size_y() / __builtin_amdgcn_workgroup_size_y();
-}
-
-/// Returns the number of workgroups in the 'z' dimension of the grid.
-LIBC_INLINE uint32_t get_num_blocks_z() {
-  return __builtin_amdgcn_grid_size_z() / __builtin_amdgcn_workgroup_size_z();
-}
-
-/// Returns the total number of workgruops in the grid.
-LIBC_INLINE uint64_t get_num_blocks() {
-  return get_num_blocks_x() * get_num_blocks_y() * get_num_blocks_z();
-}
-
-/// Returns the 'x' dimension of the current AMD workgroup's id.
-LIBC_INLINE uint32_t get_block_id_x() {
-  return __builtin_amdgcn_workgroup_id_x();
-}
-
-/// Returns the 'y' dimension of the current AMD workgroup's id.
-LIBC_INLINE uint32_t get_block_id_y() {
-  return __builtin_amdgcn_workgroup_id_y();
-}
-
-/// Returns the 'z' dimension of the current AMD workgroup's id.
-LIBC_INLINE uint32_t get_block_id_z() {
-  return __builtin_amdgcn_workgroup_id_z();
-}
-
-/// Returns the absolute id of the AMD workgroup.
-LIBC_INLINE uint64_t get_block_id() {
-  return get_block_id_x() + get_num_blocks_x() * get_block_id_y() +
-         get_num_blocks_x() * get_num_blocks_y() * get_block_id_z();
-}
-
-/// Returns the number of workitems in the 'x' dimension.
-LIBC_INLINE uint32_t get_num_threads_x() {
-  return __builtin_amdgcn_workgroup_size_x();
-}
-
-/// Returns the number of workitems in the 'y' dimension.
-LIBC_INLINE uint32_t get_num_threads_y() {
-  return __builtin_amdgcn_workgroup_size_y();
-}
-
-/// Returns the number of workitems in the 'z' dimension.
-LIBC_INLINE uint32_t get_num_threads_z() {
-  return __builtin_amdgcn_workgroup_size_z();
-}
-
-/// Returns the total number of workitems in the workgroup.
-LIBC_INLINE uint64_t get_num_threads() {
-  return get_num_threads_x() * get_num_threads_y() * get_num_threads_z();
-}
-
-/// Returns the 'x' dimension id of the workitem in the current AMD workgroup.
-LIBC_INLINE uint32_t get_thread_id_x() {
-  return __builtin_amdgcn_workitem_id_x();
-}
-
-/// Returns the 'y' dimension id of the workitem in the current AMD workgroup.
-LIBC_INLINE uint32_t get_thread_id_y() {
-  return __builtin_amdgcn_workitem_id_y();
-}
-
-/// Returns the 'z' dimension id of the workitem in the current AMD workgroup.
-LIBC_INLINE uint32_t get_thread_id_z() {
-  return __builtin_amdgcn_workitem_id_z();
-}
-
-/// Returns the absolute id of the thread in the current AMD workgroup.
-LIBC_INLINE uint64_t get_thread_id() {
-  return get_thread_id_x() + get_num_threads_x() * get_thread_id_y() +
-         get_num_threads_x() * get_num_threads_y() * get_thread_id_z();
-}
-
-/// Returns the size of an AMD wavefront, either 32 or 64 depending on hardware
-/// and compilation options.
-LIBC_INLINE uint32_t get_lane_size() {
-  return __builtin_amdgcn_wavefrontsize();
-}
-
-/// Returns the id of the thread inside of an AMD wavefront executing together.
-[[clang::convergent]] LIBC_INLINE uint32_t get_lane_id() {
-  return __builtin_amdgcn_mbcnt_hi(~0u, __builtin_amdgcn_mbcnt_lo(~0u, 0u));
-}
-
-/// Returns the bit-mask of active threads in the current wavefront.
-[[clang::convergent]] LIBC_INLINE uint64_t get_lane_mask() {
-  return __builtin_amdgcn_read_exec();
-}
-
-/// Copies the value from the first active thread in the wavefront to the rest.
-[[clang::convergent]] LIBC_INLINE uint32_t broadcast_value(uint64_t,
-                                                           uint32_t x) {
-  return __builtin_amdgcn_readfirstlane(x);
-}
-
-/// Returns a bitmask of threads in the current lane for which \p x is true.
-[[clang::convergent]] LIBC_INLINE uint64_t ballot(uint64_t lane_mask, bool x) {
-  // the lane_mask & gives the nvptx semantics when lane_mask is a subset of
-  // the active threads
-  return lane_mask & __builtin_amdgcn_ballot_w64(x);
-}
-
-/// Waits for all the threads in the block to converge and issues a fence.
-[[clang::convergent]] LIBC_INLINE void sync_threads() {
-  __builtin_amdgcn_s_barrier();
-  __builtin_amdgcn_fence(__ATOMIC_ACQUIRE, "workgroup");
-}
-
-/// Waits for all pending memory operations to complete in program order.
-[[clang::convergent]] LIBC_INLINE void memory_fence() {
-  __builtin_amdgcn_fence(__ATOMIC_ACQ_REL, "");
-}
-
-/// Wait for all threads in the wavefront to converge, this is a noop on AMDGPU.
-[[clang::convergent]] LIBC_INLINE void sync_lane(uint64_t) {
-  __builtin_amdgcn_wave_barrier();
-}
-
-/// Shuffles the the lanes inside the wavefront according to the given index.
-[[clang::convergent]] LIBC_INLINE uint32_t shuffle(uint64_t, uint32_t idx,
-                                                   uint32_t x) {
-  return __builtin_amdgcn_ds_bpermute(idx << 2, x);
-}
-
-/// Returns the current value of the GPU's processor clock.
-/// NOTE: The RDNA3 and RDNA2 architectures use a 20-bit cycle counter.
-LIBC_INLINE uint64_t processor_clock() { return __builtin_readcyclecounter(); }
-
-/// Returns a fixed-frequency timestamp. The actual frequency is dependent on
-/// the card and can only be queried via the driver.
-LIBC_INLINE uint64_t fixed_frequency_clock() {
-  return __builtin_readsteadycounter();
-}
-
-/// Terminates execution of the associated wavefront.
-[[noreturn]] LIBC_INLINE void end_program() { __builtin_amdgcn_endpgm(); }
-
-/// Returns a unique identifier for the process cluster the current wavefront is
-/// executing on. Here we use the identifier for the compute unit (CU) and
-/// shader engine.
-/// FIXME: Currently unimplemented on AMDGPU until we have a simpler interface
-/// than the one at
-/// https://github.com/ROCm/clr/blob/develop/hipamd/include/hip/amd_detail/amd_device_functions.h#L899
-LIBC_INLINE uint32_t get_cluster_id() { return 0; }
-
-} // namespace gpu
-} // namespace LIBC_NAMESPACE_DECL
-
-#endif