For compatibility with gcc, accept -maltivec as an alias of -faltivec.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158613 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/altivec.cpp b/test/Driver/altivec.cpp
index 4c0b3e4..a893636 100644
--- a/test/Driver/altivec.cpp
+++ b/test/Driver/altivec.cpp
@@ -2,6 +2,7 @@
 
 // RUN: %clang -ccc-clang-archs powerpc -target powerpc-unk-unk -faltivec -fsyntax-only %s
 // RUN: %clang -ccc-clang-archs powerpc64 -target powerpc64-linux-gnu -faltivec -fsyntax-only %s
+// RUN: %clang -ccc-clang-archs powerpc64 -target powerpc64-linux-gnu -maltivec -fsyntax-only %s
 
 // RUN: %clang -target i386-pc-win32 -faltivec -fsyntax-only %s 2>&1 | FileCheck %s
 // RUN: %clang -target x86_64-unknown-freebsd -faltivec -fsyntax-only %s 2>&1 | FileCheck %s