[llvm] [LLVM][NVPTX] Add movmatrix intrinsic and PTX instruction support (PR #190109)

[Alex MacLean via llvm-commits]

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@@ -2802,6 +2802,11 @@ foreach transposed = [0, 1] in {
   }
 }
 
+// movmatrix
+def int_nvvm_movmatrix_sync_aligned_m8n8_trans_b16
+  : DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty],
+                          [IntrNoMem, IntrConvergent, IntrNoCallback]>;
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AlexMaclean wrote:

Nit: `IntrNoCallback` is default so specifying it here is redundant. 

https://github.com/llvm/llvm-project/pull/190109