[llvm] [SROA] analyze gep(ptr,phi(const...)) (PR #82425)

[Arthur Eubanks via llvm-commits]

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@@ -4070,12 +4070,67 @@ class AggLoadStoreRewriter : public InstVisitor<AggLoadStoreRewriter, bool> {
     return true;
   }
 
+  bool foldGEPPhiConst(GetElementPtrInst &GEPI) {
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aeubanks wrote:

can we copy `foldGEPSelect` and handle both gep(phi(ptr), idx) and gep(ptr, phi(idx)) in one function? and also handle GEPs with more than one index

https://github.com/llvm/llvm-project/pull/82425