[PATCH] D113359: [Libomptarget][WIP] Introduce VGPU Plugin

[Johannes Doerfert via Phabricator via cfe-commits]

jdoerfert added inline comments.


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Comment at: clang/lib/CodeGen/CGOpenMPRuntimeVirtualGPU.cpp:54
+  CGOpenMPRuntime::createOffloadEntry(ID, Addr, Size, Flags, Linkage);
+}
----------------
We should be able to get rid of this file (and the cuda/hip) version. Might be the right time now as a precommit.


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Comment at: llvm/include/llvm/ADT/Triple.h:166
+    VGPU,
+    LastVendorType = VGPU
   };
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Let's call it OpenMP_VGPU or something like that to make it clear.


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Comment at: llvm/lib/Transforms/IPO/OpenMPOpt.cpp:2177
+}
+
 /// Abstract Attribute for tracking ICV values.
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@tianshilei1992 This needs a test.


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Comment at: openmp/libomptarget/DeviceRTL/src/Kernel.cpp:107
+  synchronize::threads();
+
   // Signal the workers to exit the state machine and exit the kernel.
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I don't think we should do this. Instead, the plugin should signal as threads finish the kernel.


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Comment at: openmp/libomptarget/DeviceRTL/src/Mapping.cpp:171
+#pragma omp begin declare variant match(                                       \
+    device = {arch(x86, x86_64)}, implementation = {extension(match_any)})
+
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We probably should use kind(CPU) or something instead. Nothing x86 specific about it I think.


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Comment at: openmp/libomptarget/include/DeviceEnvironment.h:83
+
+ThreadEnvironmentTy *getThreadEnvironment(void);
+
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This should go into a new file (ThreadEnvironment)


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D113359/new/

https://reviews.llvm.org/D113359