[llvm] r268658 - LTOCodeGenerator: handle correctly "unnamed" symbol

[Mehdi Amini via llvm-commits]

Author: mehdi_amini
Date: Thu May  5 13:14:55 2016
New Revision: 268658

URL: http://llvm.org/viewvc/llvm-project?rev=268658&view=rev
Log:
LTOCodeGenerator: handle correctly "unnamed" symbol

This should fix the assertions in a clang LTO bootstrap we're seeing.

From: Mehdi Amini <mehdi.amini at apple.com>

Modified:
    llvm/trunk/lib/LTO/LTOCodeGenerator.cpp

Modified: llvm/trunk/lib/LTO/LTOCodeGenerator.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/LTO/LTOCodeGenerator.cpp?rev=268658&r1=268657&r2=268658&view=diff
==============================================================================
--- llvm/trunk/lib/LTO/LTOCodeGenerator.cpp (original)
+++ llvm/trunk/lib/LTO/LTOCodeGenerator.cpp Thu May  5 13:14:55 2016
@@ -364,7 +364,7 @@ static void preserveDiscardableGVs(
   }
   llvm::Type *i8PTy = llvm::Type::getInt8PtrTy(TheModule.getContext());
   auto mayPreserveGlobal = [&](GlobalValue &GV) {
-    if (!GV.isDiscardableIfUnused() || GV.isDeclaration())
+    if (!GV.isDiscardableIfUnused() || GV.isDeclaration() || !GV.hasName())
       return;
     if (!mustPreserveGV(GV))
       return;