From b51ff2705fe15a214ba234dae221c39b105fa57c Mon Sep 17 00:00:00 2001
From: Fangrui Song <i@maskray.me>
Date: Sun, 3 Aug 2025 16:05:34 -0700
Subject: MCSymbolELF: Migrate away from classof

The object file format specific derived classes are used in context
where the type is statically known. We don't use isa/dyn_cast and we
want to eliminate MCSymbol::Kind in the base class.
---
 llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp')

diff --git a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index 37c6dc9..8ca1bb1 100644
--- a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -581,7 +581,8 @@ static const MCSymbolELF *getLinkedToSymbol(const GlobalObject *GO,
 
   auto *VM = cast<ValueAsMetadata>(MD->getOperand(0).get());
   auto *OtherGV = dyn_cast<GlobalValue>(VM->getValue());
-  return OtherGV ? dyn_cast<MCSymbolELF>(TM.getSymbol(OtherGV)) : nullptr;
+  return OtherGV ? static_cast<const MCSymbolELF *>(TM.getSymbol(OtherGV))
+                 : nullptr;
 }
 
 static unsigned getEntrySizeForKind(SectionKind Kind) {
@@ -1011,7 +1012,7 @@ MCSection *TargetLoweringObjectFileELF::getSectionForLSDA(
       (getContext().getAsmInfo()->useIntegratedAssembler() &&
        getContext().getAsmInfo()->binutilsIsAtLeast(2, 36))) {
     Flags |= ELF::SHF_LINK_ORDER;
-    LinkedToSym = cast<MCSymbolELF>(&FnSym);
+    LinkedToSym = static_cast<const MCSymbolELF *>(&FnSym);
   }
 
   // Append the function name as the suffix like GCC, assuming
-- 
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