[PATCH] XCore target exception handling

[Rafael Ávila de Espíndola]

  Could you also split the patch in a __builtin_eh_return_data_regno patch and a driver patch?


================
Comment at: lib/Driver/Tools.cpp:7100
@@ -7099,1 +7099,3 @@
 
+  if (Args.hasFlag(options::OPT_fexceptions,
+                   options::OPT_fno_exceptions, false)
----------------
Please refactor the existing logic around line 1574 and reuse it here.


http://llvm-reviews.chandlerc.com/D2570