[CodeGen] Migrate away from PointerUnion::dyn_cast (NFC)

[kazutakahirata]

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

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

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.

[llvmbot]

@llvm/pr-subscribers-clang-codegen

@llvm/pr-subscribers-clang

Author: Kazu Hirata (kazutakahirata)

Changes

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.

---

Full diff: https://github.com/llvm/llvm-project/pull/125456.diff

1 Files Affected:

• (modified) clang/lib/CodeGen/ItaniumCXXABI.cpp (+2-2)

diff --git a/clang/lib/CodeGen/ItaniumCXXABI.cpp b/clang/lib/CodeGen/ItaniumCXXABI.cpp
index 7c463f51f63dc5c..7375a511809b9f8 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);