[clang] [analyzer] Switch to PostStmt callbacks in ArrayBoundV2 (PR #72107)

[Balazs Benics via cfe-commits]

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=?utf-8?q?Donát?= Nagy <donat.n...@ericsson.com>,
=?utf-8?q?Donát?= Nagy <donat.n...@ericsson.com>,
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Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/72...@github.com>


================
@@ -413,6 +464,19 @@ bool ArrayBoundCheckerV2::isFromCtypeMacro(const Stmt *S, 
ASTContext &ACtx) {
           (MacroName == "isupper") || (MacroName == "isxdigit"));
 }
 
+bool ArrayBoundCheckerV2::isInAddressOf(const Stmt *S, ASTContext &ACtx) {
+  ParentMapContext &ParentCtx = ACtx.getParentMapContext();
+  do {
+    const DynTypedNodeList Parents = ParentCtx.getParents(*S);
+    if (Parents.empty())
+      return false;
+    S = Parents[0].get<Stmt>();
+  } while (isa_and_nonnull<ParenExpr, ImplicitCastExpr>(S));
+  if (const auto *UnaryOp = dyn_cast_or_null<UnaryOperator>(S))
+    return UnaryOp->getOpcode() == UO_AddrOf;
+  return false;
----------------
steakhal wrote:

```suggestion
  const auto *UnaryOp = dyn_cast_or_null<UnaryOperator>(S);
  return UnaryOp && UnaryOp->getOpcode() == UO_AddrOf;
```

https://github.com/llvm/llvm-project/pull/72107
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