[llvm] Extend MemoryEffects to Support Target-Specific Memory Locations (PR #148650)

[Paul Walker via llvm-commits]

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@@ -178,6 +217,11 @@ template <typename LocationEnum> class MemoryEffectsBase {
     return MemoryEffectsBase(Data);
   }
 
+  bool isTargetMemLoc(IRMemLocation Loc) {
+    return static_cast<unsigned>(Loc) >
+           static_cast<unsigned>(Location::ErrnoMem);
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paulwalker-arm wrote:

`Location::Other` is after `Location::ErrnoMem` but is not a TargetMem location. This backs up my FirstTargetMem/LastTargetMem suggestion.

https://github.com/llvm/llvm-project/pull/148650