[ARM] Change default ABI for AArch32 to be "aapcs" (was "apcs-gnu")

The current default abi when no environment is given is "apcs-gnu",
which is obsolete. This patch changes the default to "aapcs". "aapcs" has both
hard- and soft-float variants, so the -mhard-float, -msoft-float and
-mfloat-abi= options now all behave as expected when no environment is
specified in the triple.

While writing this I also noticed that a preprocessor test claims to be
checking darwin, but is actually checking the defaults, which are
different for darwin.

llvm-svn: 216662

1 files changed, 1 insertions, 2 deletions

diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 3af94ca..de64d93 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -755,10 +755,9 @@ void Clang::AddARMTargetArgs(const ArgList &Args,
       break;
     case llvm::Triple::EABIHF:
     case llvm::Triple::EABI:
+    default:
       ABIName = "aapcs";
       break;
-    default:
-      ABIName = "apcs-gnu";
     }
   }
   CmdArgs.push_back("-target-abi");