Temporarily revert 91337. It's causing testcase failures.

$ svn merge -c -91337 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91337 into '.':
U    lib/CodeGen/AsmPrinter/DwarfException.cpp



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91618 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfException.cpp b/lib/CodeGen/AsmPrinter/DwarfException.cpp
index 3fd077f..1c8b8f4 100644
--- a/lib/CodeGen/AsmPrinter/DwarfException.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfException.cpp
@@ -292,13 +292,14 @@
       Asm->EmitULEB128Bytes(is4Byte ? 4 : 8);
       Asm->EOL("Augmentation size");
 
-      // We force 32-bits here because we've encoded our LSDA in the CIE with
-      // `dwarf::DW_EH_PE_sdata4'. And the CIE and FDE should agree.
       if (EHFrameInfo.hasLandingPads)
-        EmitReference("exception", EHFrameInfo.Number, true, true);
-      else
-        Asm->EmitInt32((int)0);
-
+        EmitReference("exception", EHFrameInfo.Number, true, false);
+      else {
+        if (is4Byte)
+          Asm->EmitInt32((int)0);
+        else
+          Asm->EmitInt64((int)0);
+      }
       Asm->EOL("Language Specific Data Area");
     } else {
       Asm->EmitULEB128Bytes(0);