Reverse sense of unwind-tables option. This means

stack tracebacks on Darwin x86-64 won't work by default;
nevertheless, everybody but me thinks this is a good idea.

llvm-svn: 49663

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/DwarfWriter.cpp b/llvm/lib/CodeGen/DwarfWriter.cpp
index 6cdc91e1f72..3a3a04d2fa0 100644
--- a/llvm/lib/CodeGen/DwarfWriter.cpp
+++ b/llvm/lib/CodeGen/DwarfWriter.cpp
@@ -2906,10 +2906,10 @@ private:
     // If there are no calls then you can't unwind.  This may mean we can
     // omit the EH Frame, but some environments do not handle weak absolute
     // symbols.  
-    // If UnwindTablesOptional is not set we cannot do this optimization; the
+    // If UnwindTablesMandatory is set we cannot do this optimization; the
     // unwind info is to be available for non-EH uses.
     if (!EHFrameInfo.hasCalls &&
-        UnwindTablesOptional &&
+        !UnwindTablesMandatory &&
         ((linkage != Function::WeakLinkage && 
           linkage != Function::LinkOnceLinkage) ||
          !TAI->getWeakDefDirective() ||
@@ -3432,7 +3432,7 @@ public:
       // See if we need frame move info.
       if (MMI->hasDebugInfo() || 
           !MF->getFunction()->doesNotThrow() ||
-          !UnwindTablesOptional)
+          UnwindTablesMandatory)
         shouldEmitMoves = true;
 
       if (shouldEmitMoves || shouldEmitTable)