Fix and enable EH for x86-64 Darwin.  Adds
ShortenEHDataFor64Bits as a not-very-accurate
abstraction to cover all the changes in DwarfWriter.
Some cosmetic changes to Darwin assembly code for
gcc testsuite compatibility.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46029 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86AsmPrinter.cpp b/lib/Target/X86/X86AsmPrinter.cpp
index 8f48162..b0e8165 100644
--- a/lib/Target/X86/X86AsmPrinter.cpp
+++ b/lib/Target/X86/X86AsmPrinter.cpp
@@ -358,7 +358,8 @@
 
     O << "\n";
 
-    if (ExceptionHandling && TAI->doesSupportExceptionHandling() && MMI) {
+    if (ExceptionHandling && TAI->doesSupportExceptionHandling() && MMI &&
+        !Subtarget->is64Bit()) {
       // Add the (possibly multiple) personalities to the set of global values.
       const std::vector<Function *>& Personalities = MMI->getPersonalities();