[llvm] [DXIL] Add GroupMemoryBarrierWithGroupSync intrinsic (PR #114349)

[Adam Yang via llvm-commits]

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@@ -305,8 +356,8 @@ class DXILOp<int opcode, DXILOpClass opclass> {
   // Class of DXIL Operation.
   DXILOpClass OpClass = opclass;
 
-  // LLVM Intrinsic DXIL Operation maps to
-  Intrinsic LLVMIntrinsic = ?;
+  // LLVM Intrinsics DXIL Operation maps from
+  list<IntrinSelect> intrinsic_selects = [];
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adam-yang wrote:

Changed it to use `intrinsics` instead, since there could be multiple.

https://github.com/llvm/llvm-project/pull/114349