[llvm] r239692 - AsmPrinter.cpp: Avoid crashes for targeting like "arm-mingw32". CurrentFnSym might not be <MCSymbolELF> here.

[NAKAMURA Takumi]

Author: chapuni
Date: Sat Jun 13 19:23:40 2015
New Revision: 239692

URL: http://llvm.org/viewvc/llvm-project?rev=239692&view=rev
Log:
AsmPrinter.cpp: Avoid crashes for targeting like "arm-mingw32". CurrentFnSym might not be <MCSymbolELF> here.

Modified:
    llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp

Modified: llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp?rev=239692&r1=239691&r2=239692&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp Sat Jun 13 19:23:40 2015
@@ -902,7 +902,8 @@ void AsmPrinter::EmitFunctionBody() {
     const MCExpr *SizeExp = MCBinaryExpr::createSub(
         MCSymbolRefExpr::create(CurrentFnEnd, OutContext),
         MCSymbolRefExpr::create(CurrentFnSymForSize, OutContext), OutContext);
-    OutStreamer->emitELFSize(cast<MCSymbolELF>(CurrentFnSym), SizeExp);
+    if (auto Sym = dyn_cast<MCSymbolELF>(CurrentFnSym))
+      OutStreamer->emitELFSize(Sym, SizeExp);
   }
 
   for (const HandlerInfo &HI : Handlers) {