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

[John McCall 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)) {
----------------
rjmccall wrote:

We have other code that computes the value of the `__counted_by` bound when we 
e.g. load a pointer from a field with the attribute, yes?

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