[PATCH] D139452: [LLVM] Use dyn_cast instead of cast for objects that require it

Alf via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Dec 6 19:52:37 PST 2022


gAlfonso-bit updated this revision to Diff 480750.

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D139452/new/

https://reviews.llvm.org/D139452

Files:
  llvm/lib/MC/MCExpr.cpp
  llvm/lib/Object/ELFObjectFile.cpp


Index: llvm/lib/Object/ELFObjectFile.cpp
===================================================================
--- llvm/lib/Object/ELFObjectFile.cpp
+++ llvm/lib/Object/ELFObjectFile.cpp
@@ -800,8 +800,6 @@
     return readBBAddrMapImpl(Obj->getELFFile(), TextSectionIndex);
   if (const auto *Obj = dyn_cast<ELF32BEObjectFile>(this))
     return readBBAddrMapImpl(Obj->getELFFile(), TextSectionIndex);
-  if (const auto *Obj = cast<ELF64BEObjectFile>(this))
-    return readBBAddrMapImpl(Obj->getELFFile(), TextSectionIndex);
-  else
-    llvm_unreachable("Unsupported binary format");
+  const auto *Obj = cast<ELF64BEObjectFile>(this);
+  return readBBAddrMapImpl(Obj->getELFFile(), TextSectionIndex);
 }
Index: llvm/lib/MC/MCExpr.cpp
===================================================================
--- llvm/lib/MC/MCExpr.cpp
+++ llvm/lib/MC/MCExpr.cpp
@@ -886,7 +886,7 @@
                                                   Addrs, InSet)) {
       // Check if both are Target Expressions, see if we can compare them.
       if (const MCTargetExpr *L = dyn_cast<MCTargetExpr>(ABE->getLHS()))
-        if (const MCTargetExpr *R = cast<MCTargetExpr>(ABE->getRHS())) {
+        if (const MCTargetExpr *R = dyn_cast<MCTargetExpr>(ABE->getRHS())) {
           switch (ABE->getOpcode()) {
           case MCBinaryExpr::EQ:
             Res = MCValue::get((L->isEqualTo(R)) ? -1 : 0);


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