[clang] [llvm] [clang] [OpenMP] New OpenMP 6.0 self_maps clause - CodeGen (PR #134131)

[Krzysztof Parzyszek via llvm-commits]

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@@ -236,6 +236,8 @@ enum class OpenMPOffloadMappingFlags : uint64_t {
   // dynamic.
   // This is an OpenMP extension for the sake of OpenACC support.
   OMP_MAP_OMPX_HOLD = 0x2000,
+  /// Self directs mapping without creating a separate device copy.
+  OMP_MAP_SELF = 0x4000,
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kparzysz wrote:

Whoever generates the mappings has to guarantee that they are correct.  The OMP_MAP_LITERAL is just a mechanism to pass the pointer[1] without any modifications.  

Is the OMP_MAP_SELF a part of some bigger plan?  Are you planning to add more reviewers?  I'd like to see what others think about this.

[1] It doesn't have to be a pointer, just something that fits in a register.

https://github.com/llvm/llvm-project/pull/134131