[llvm] [AArch64][GlobalISel] Select G_ICMP instruction through TableGen (PR #89932)

[Matt Arsenault via llvm-commits]

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@@ -5376,6 +5376,51 @@ def : Pat<(AArch64bsp (v4i32 V128:$Rd), V128:$Rn, V128:$Rm),
 def : Pat<(AArch64bsp (v2i64 V128:$Rd), V128:$Rn, V128:$Rm),
           (BSPv16i8 V128:$Rd, V128:$Rn, V128:$Rm)>;
 
+multiclass SelectSetCC<PatFrags InFrag, string INST> {
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arsenm wrote:

I'd assume there's some reason for that, and the legalizer here would match? 

https://github.com/llvm/llvm-project/pull/89932