[clang-tools-extra] [libc] [llvm] [libcxx] [clang] [compiler-rt] [flang] [Clang] Generate the GEP instead of adding AST nodes (PR #73730)

[Eli Friedman via cfe-commits]

================
@@ -4022,8 +4169,36 @@ LValue CodeGenFunction::EmitArraySubscriptExpr(const ArraySubscriptExpr *E,
       ArrayLV = EmitArraySubscriptExpr(ASE, /*Accessed*/ true);
     else
       ArrayLV = EmitLValue(Array);
+
     auto *Idx = EmitIdxAfterBase(/*Promote*/true);
 
+    if (SanOpts.has(SanitizerKind::ArrayBounds)) {
----------------
efriedma-quic wrote:

Recursively skipping over all GEPs seems, at best, extremely fragile; there could be GEPs for reasons other than the member expressions you care about.

https://github.com/llvm/llvm-project/pull/73730