[llvm] r324942 - [WebAssembly] Fix casting MCSymbol to MCSymbolWasm on ELF

[Jacob Gravelle via llvm-commits]

Author: jgravelle
Date: Mon Feb 12 13:41:12 2018
New Revision: 324942

URL: http://llvm.org/viewvc/llvm-project?rev=324942&view=rev
Log:
[WebAssembly] Fix casting MCSymbol to MCSymbolWasm on ELF

Summary:
wasm32-unknown-unknown-elf has MCSymbols that are not MCSymbolWasms, so
we need a non-asserting cast here.

Reviewers: dschuff, sunfish

Subscribers: jfb, sbc100, aheejin, llvm-commits

Differential Revision: https://reviews.llvm.org/D43205

Modified:
    llvm/trunk/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp

Modified: llvm/trunk/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp?rev=324942&r1=324941&r2=324942&view=diff
==============================================================================
--- llvm/trunk/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp (original)
+++ llvm/trunk/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp Mon Feb 12 13:41:12 2018
@@ -84,13 +84,15 @@ void WebAssemblyAsmPrinter::EmitEndOfAsm
       SmallVector<MVT, 4> Results;
       SmallVector<MVT, 4> Params;
       ComputeSignatureVTs(F, TM, Params, Results);
-      MCSymbolWasm *Sym = cast<MCSymbolWasm>(getSymbol(&F));
+      MCSymbol *Sym = getSymbol(&F);
       getTargetStreamer()->emitIndirectFunctionType(Sym, Params, Results);
 
-      if (F.hasFnAttribute("wasm-import-module")) {
+      if (TM.getTargetTriple().isOSBinFormatWasm() &&
+          F.hasFnAttribute("wasm-import-module")) {
+        MCSymbolWasm *WasmSym = cast<MCSymbolWasm>(Sym);
         StringRef Name = F.getFnAttribute("wasm-import-module")
                              .getValueAsString();
-        getTargetStreamer()->emitImportModule(Sym, Name);
+        getTargetStreamer()->emitImportModule(WasmSym, Name);
       }
     }
   }