[llvm] [AMDGPU][Offload] Enable memory manager use for up to ~3GB allocation size in omp_target_alloc (PR #151882)

[Joseph Huber via llvm-commits]

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@@ -2944,6 +2944,41 @@ struct AMDGPUDeviceTy : public GenericDeviceTy, AMDGenericDeviceTy {
     return Plugin::success();
   }
 
+  bool checkIfCoarseGrainMemoryNearOrAbove64GB() {
+    for (AMDGPUMemoryPoolTy *Pool : AllMemoryPools) {
+      if (Pool->isGlobal() && Pool->isCoarseGrained()) {
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jhuber6 wrote:

Prefer early exit

https://github.com/llvm/llvm-project/pull/151882