[clang] [Sema] Migrate away from PointerUnion::dyn_cast (NFC) (PR #123158)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>

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

  // FIXME: Replace the uses of is(), get() and dyn_cast() with
  //        isa&lt;T&gt;, cast&lt;T&gt; and the llvm::dyn_cast&lt;T&gt;

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 AP to be nonnull.


---
Full diff: https://github.com/llvm/llvm-project/pull/123158.diff


1 Files Affected:

- (modified) clang/lib/Sema/SemaFunctionEffects.cpp (+1-1) 


``````````diff
diff --git a/clang/lib/Sema/SemaFunctionEffects.cpp 
b/clang/lib/Sema/SemaFunctionEffects.cpp
index 0d56a74b066e8e..31980abd23fd1e 100644
--- a/clang/lib/Sema/SemaFunctionEffects.cpp
+++ b/clang/lib/Sema/SemaFunctionEffects.cpp
@@ -567,7 +567,7 @@ class Analyzer {
     while (!VerificationQueue.empty()) {
       const Decl *D = VerificationQueue.back();
       if (FuncAnalysisPtr AP = DeclAnalysis.lookup(D)) {
-        if (auto *Pending = AP.dyn_cast<PendingFunctionAnalysis *>()) {
+        if (auto *Pending = dyn_cast<PendingFunctionAnalysis *>(AP)) {
           // All children have been traversed; finish analysis.
           finishPendingAnalysis(D, Pending);
         }

``````````

</details>


https://github.com/llvm/llvm-project/pull/123158
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