[PowerPC 4/4] Enable little-endian support for VSX.

With the foregoing three patches, VSX instructions can be used for
little endian.  This patch removes the restriction that prevented
this, and re-enables the test cases from the first three patches.





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223792 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/PowerPC/PPCSubtarget.cpp

@@ -154,13 +154,6 @@ void PPCSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) {
   // Determine endianness.
   IsLittleEndian = (TargetTriple.getArch() == Triple::ppc64le);
 
-  // FIXME: For now, we disable VSX in little-endian mode until endian
-  // issues in those instructions can be addressed.
-  if (IsLittleEndian) {
-    HasVSX = false;
-    HasP8Vector = false;
-  }
-
   // Determine default ABI.
   if (TargetABI == PPC_ABI_UNKNOWN) {
     if (!isDarwin() && IsPPC64) {