[llvm] [MCA][AArch64] Fix Neoverse N2 pair-load RThroughput (PR #171853)

[Amina Chabane via llvm-commits]

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@@ -796,6 +796,15 @@ def : InstRW<[N2Write_2c_1M], (instregex "^BFM[WX]ri$")>;
 def : SchedAlias<WriteLD,    N2Write_4c_1L>;
 def : SchedAlias<WriteLDIdx, N2Write_4c_1I_1L>;
 
+// Load pair, signed immed offset, normal, X-form
+def : InstRW<[N2Write_4c_1L, N2Write_4c_1L, WriteLDHi],
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Amichaxx wrote:

Thanks for the review. I have amended it now.

https://github.com/llvm/llvm-project/pull/171853