[clang] [llvm] [clang][OpenMP] New OpenMP 6.0 threadset clause (PR #135807)

[Deepak Eachempati via llvm-commits]

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@@ -3691,6 +3691,7 @@ CGOpenMPRuntime::emitTaskInit(CodeGenFunction &CGF, SourceLocation Loc,
     DestructorsFlag = 0x8,
     PriorityFlag = 0x20,
     DetachableFlag = 0x40,
+    PoolFlag = 0x80,
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dreachem wrote:

For the runtime change in this PR, is it sufficient that we update `kmp_tasking_flags_t` with the corresponding flag we will be passing in for when `threadset(omp_pool)` is present? The spec allows for this flag to be essentially ignored in a compliant implementation, but it will allow someone else to pick it up and implement it in a subsequent patch. 

https://github.com/llvm/llvm-project/pull/135807