https://github.com/kazutakahirata created 
https://github.com/llvm/llvm-project/pull/122652

Note that PointerUnion::dyn_cast has been soft deprecated in
PointerUnion.h:

  // FIXME: Replace the uses of is(), get() and dyn_cast() with
  //        isa<T>, cast<T> and the llvm::dyn_cast<T>

Literal migration would result in dyn_cast_if_present (see the
definition of PointerUnion::dyn_cast), but this patch uses dyn_cast
because we expect Ctx->FunArgs to be nonnull.


>From d440c4a934a5bb872524b918b3919ffbcdb277a1 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <k...@google.com>
Date: Sun, 12 Jan 2025 14:24:44 -0800
Subject: [PATCH] [Analysis] Migrate away from PointerUnion::dyn_cast (NFC)

Note that PointerUnion::dyn_cast has been soft deprecated in
PointerUnion.h:

  // FIXME: Replace the uses of is(), get() and dyn_cast() with
  //        isa<T>, cast<T> and the llvm::dyn_cast<T>

Literal migration would result in dyn_cast_if_present (see the
definition of PointerUnion::dyn_cast), but this patch uses dyn_cast
because we expect Ctx->FunArgs to be nonnull.
---
 clang/lib/Analysis/ThreadSafetyCommon.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/lib/Analysis/ThreadSafetyCommon.cpp 
b/clang/lib/Analysis/ThreadSafetyCommon.cpp
index 050daee1168d4b..13cd7e26dc16f3 100644
--- a/clang/lib/Analysis/ThreadSafetyCommon.cpp
+++ b/clang/lib/Analysis/ThreadSafetyCommon.cpp
@@ -336,7 +336,7 @@ til::SExpr *SExprBuilder::translateDeclRefExpr(const 
DeclRefExpr *DRE,
               : (cast<ObjCMethodDecl>(D)->getCanonicalDecl() == Canonical)) {
         // Substitute call arguments for references to function parameters
         if (const Expr *const *FunArgs =
-                Ctx->FunArgs.dyn_cast<const Expr *const *>()) {
+                dyn_cast<const Expr *const *>(Ctx->FunArgs)) {
           assert(I < Ctx->NumArgs);
           return translate(FunArgs[I], Ctx->Prev);
         }

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