[PATCH] Remove the -cxx-abi command-line option

[Reid Kleckner]

  LGTM with suggestions

  We should probably announce on cfe-dev that -cxx-abi is gone and all you need now is the triple.  Even though it was a -cc1 flag, lots of people are using it with the gcc compatible driver.


================
Comment at: lib/Frontend/CompilerInvocation.cpp:1633
@@ -1635,2 +1632,3 @@
+  if (llvm::Triple(Opts.Triple).getOS() == llvm::Triple::Win32)
     Opts.CXXABI = "microsoft";
 }
----------------
Let's kill off this TargetOptions field and use Triple instead.  There should be very few instances of code looking at this.  We should keep the TargetCXXABI enum stuff.

================
Comment at: test/lit.cfg:251
@@ +250,3 @@
+print makeItaniumABITriple(config.target_triple)
+print makeMSABITriple(config.target_triple)
+
----------------
These debug prints should go away.


http://llvm-reviews.chandlerc.com/D2545