[llvm] [Offload] Add liboffload unit tests for shared/local memory (PR #147040)

[Ross Brunton via llvm-commits]

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@@ -0,0 +1,16 @@
+#include <gpuintrin.h>
+#include <stdint.h>
+
+extern __gpu_local uint32_t shared_mem[];
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RossBrunton wrote:

I've added one. Since the number of tests is getting a bit large, I've also added a macro to the olLaunchKernel test.

https://github.com/llvm/llvm-project/pull/147040