r306739 - Insert llvm_unreachable at the end of a function to silence gcc's

[Akira Hatanaka via cfe-commits]

Author: ahatanak
Date: Thu Jun 29 13:44:20 2017
New Revision: 306739

URL: http://llvm.org/viewvc/llvm-project?rev=306739&view=rev
Log:
Insert llvm_unreachable at the end of a function to silence gcc's
-Werror=return-type error.

This is an attempt to fix the following failing bot:

http://lab.llvm.org:8011/builders/ubuntu-gcc7.1-werror

Modified:
    cfe/trunk/lib/Driver/ToolChains/Darwin.cpp

Modified: cfe/trunk/lib/Driver/ToolChains/Darwin.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Darwin.cpp?rev=306739&r1=306738&r2=306739&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/Darwin.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains/Darwin.cpp Thu Jun 29 13:44:20 2017
@@ -1680,6 +1680,7 @@ bool Darwin::isAlignedAllocationUnavaila
   case WatchOSSimulator: // Earlier than 4.0.
     return TargetVersion < VersionTuple(4U, 0U, 0U);
   }
+  llvm_unreachable("Unsupported platform");
 }
 
 void Darwin::addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,