[clang] [Clang][AMDGPU] Search TheRock-based device libraries (PR #170590)

[via cfe-commits]

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@@ -436,15 +436,21 @@ void RocmInstallationDetector::detectDeviceLibrary() {
   if (HasDeviceLibrary)
     return;
 
-  // Find device libraries in a legacy ROCm directory structure
-  // ${ROCM_ROOT}/amdgcn/bitcode/*
+  // Find device libraries in a ROCm directory structure
   auto &ROCmDirs = getInstallationPathCandidates();
   for (const auto &Candidate : ROCmDirs) {
+    // Legacy: ${ROCM_PATH}/amdgcn/bitcode/*
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b-sumner wrote:

The true path is $ROCM/lib/llvm/lib/clang/NN/amdgcn/bitcode .  I'm not clear on the reason for moving it.

https://github.com/llvm/llvm-project/pull/170590