[clang] [CodeGen] Migrate away from PointerUnion::dyn_cast (NFC) (PR #125456)

[Kazu Hirata via cfe-commits]

https://github.com/kazutakahirata created https://github.com/llvm/llvm-project/pull/125456

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 E to be nonnull.


>From 08923b1f3f9d10bf69cab3c788d7b45ba87b1b84 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Sun, 2 Feb 2025 12:17:01 -0800
Subject: [PATCH] [CodeGen] 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 E to be nonnull.
---
 clang/lib/CodeGen/ItaniumCXXABI.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/clang/lib/CodeGen/ItaniumCXXABI.cpp b/clang/lib/CodeGen/ItaniumCXXABI.cpp
index 7c463f51f63dc5..7375a511809b9f 100644
--- a/clang/lib/CodeGen/ItaniumCXXABI.cpp
+++ b/clang/lib/CodeGen/ItaniumCXXABI.cpp
@@ -2239,8 +2239,8 @@ CGCallee ItaniumCXXABI::getVirtualFunctionPointer(CodeGenFunction &CGF,
 llvm::Value *ItaniumCXXABI::EmitVirtualDestructorCall(
     CodeGenFunction &CGF, const CXXDestructorDecl *Dtor, CXXDtorType DtorType,
     Address This, DeleteOrMemberCallExpr E, llvm::CallBase **CallOrInvoke) {
-  auto *CE = E.dyn_cast<const CXXMemberCallExpr *>();
-  auto *D = E.dyn_cast<const CXXDeleteExpr *>();
+  auto *CE = dyn_cast<const CXXMemberCallExpr *>(E);
+  auto *D = dyn_cast<const CXXDeleteExpr *>(E);
   assert((CE != nullptr) ^ (D != nullptr));
   assert(CE == nullptr || CE->arg_begin() == CE->arg_end());
   assert(DtorType == Dtor_Deleting || DtorType == Dtor_Complete);