[libc-commits] [PATCH] D140422: [libc] Add check for locally installed GPUs

[Joseph Huber via Phabricator via libc-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGae20ff752621: [libc] Add check for locally installed GPUs (authored by jhuber6).

Changed prior to commit:
  https://reviews.llvm.org/D140422?vs=484331&id=484339#toc

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D140422/new/

https://reviews.llvm.org/D140422

Files:
  libc/cmake/modules/prepare_libc_gpu_build.cmake


Index: libc/cmake/modules/prepare_libc_gpu_build.cmake
===================================================================
--- libc/cmake/modules/prepare_libc_gpu_build.cmake
+++ libc/cmake/modules/prepare_libc_gpu_build.cmake
@@ -28,3 +28,22 @@
   message(FATAL_ERROR "LLVM_LIBC_FULL_BUILD must be enabled to build libc for "
                       "GPU.")
 endif()
+
+# Identify any locally installed GPUs to use for testing.
+find_program(LIBC_AMDGPU_ARCH
+             NAMES amdgpu-arch
+             PATHS ${LLVM_BINARY_DIR}/bin /opt/rocm/llvm/bin/)
+if(LIBC_AMDGPU_ARCH)
+  execute_process(COMMAND ${LIBC_AMDGPU_ARCH}
+                  OUTPUT_VARIABLE LIBC_AMDGPU_ARCH_OUTPUT
+                  OUTPUT_STRIP_TRAILING_WHITESPACE)
+  string(FIND "${LIBC_AMDGPU_ARCH_OUTPUT}" "\n" first_arch_string)
+  string(SUBSTRING "${LIBC_AMDGPU_ARCH_OUTPUT}" 0 ${first_arch_string}
+         arch_string)
+  if(arch_string)
+    set(LIBC_GPU_TARGET_ARCHITECTURE_IS_AMDGPU TRUE)
+    set(LIBC_GPU_TARGET_TRIPLE "amdgcn-amd-amdhsa")
+    set(LIBC_GPU_TARGET_ARCHITECTURE "${arch_string}")
+  endif()
+endif()
+# TODO: Check for Nvidia GPUs.


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