[libc] [llvm] [LLVM] Make the GPU loader utilities an LLVM tool (PR #132096)

[Michał Górny via llvm-commits]

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@@ -0,0 +1,45 @@
+set(LLVM_LINK_COMPONENTS
+  BinaryFormat
+  Object
+  Option
+  Support
+  FrontendOffloading
+)
+
+add_llvm_tool(llvm-gpu-loader
+  llvm-gpu-loader.cpp
+
+  # TODO: We intentionally split this currently due to statically linking the
+  #       GPU runtimes. Dynamically load the dependencies, possibly using the
+  #       LLVM offloading API when it is complete.
+  PARTIAL_SOURCES_INTENDED
+
+  DEPENDS
+  intrinsics_gen
+)
+
+# Locate the RPC server handling interface.
+include(FindLibcCommonUtils)
+target_link_libraries(llvm-gpu-loader PUBLIC llvm-libc-common-utilities)
+
+# Check for HSA support for targeting AMD GPUs.
+find_package(hsa-runtime64 QUIET 1.2.0 HINTS ${CMAKE_INSTALL_PREFIX} PATHS /opt/rocm)
----------------
mgorny wrote:

Silent automagic dependency on hsa-runtime64 (and CUDA runtime below) deep down the source tree is a horrible idea. I've filed bug #132890 specifically about it.

https://github.com/llvm/llvm-project/pull/132096