[clang] Conditionally include target intrinsics, based on --enable-target

lib/CodeGen/CGExprScalar.cpp

Index: lib/CodeGen/CGExprScalar.cpp
===================================================================
--- lib/CodeGen/CGExprScalar.cpp	(revision 138929)
+++ lib/CodeGen/CGExprScalar.cpp	(working copy)
@@ -2072,6 +2072,7 @@
                                         BuiltinType::Kind ElemKind) {
   switch (ElemKind) {
   default: assert(0 && "unexpected element type");
+#if 0
   case BuiltinType::Char_U:
   case BuiltinType::UChar:
     return (IT == VCMPEQ) ? llvm::Intrinsic::ppc_altivec_vcmpequb_p :
@@ -2104,6 +2105,7 @@
     return (IT == VCMPEQ) ? llvm::Intrinsic::ppc_altivec_vcmpeqfp_p :
                             llvm::Intrinsic::ppc_altivec_vcmpgtfp_p;
     break;
+#endif
   }
   return llvm::Intrinsic::not_intrinsic;
 }
@@ -2162,8 +2164,13 @@
       case BO_LE:
         if (ElementKind == BuiltinType::Float) {
           CR6 = CR6_LT;
+#if defined(TARGET_ENABLED_POWERPC)
           ID = llvm::Intrinsic::ppc_altivec_vcmpgefp_p;
           std::swap(FirstVecArg, SecondVecArg);
+#else
+          llvm_unreachable("Using Intrinsic::ppc_altivec_vcmpgefp_p w/out"
+                           " TARGET_ENABLED_POWERPC defined!");
+#endif  // TARGET_ENABLED_POWERPC
         }
         else {
           CR6 = CR6_EQ;
@@ -2173,7 +2180,12 @@
       case BO_GE:
         if (ElementKind == BuiltinType::Float) {
           CR6 = CR6_LT;
+#if defined(TARGET_ENABLED_POWERPC)
           ID = llvm::Intrinsic::ppc_altivec_vcmpgefp_p;
+#else
+          llvm_unreachable("Using Intrinsic::ppc_altivec_vcmpgefp_p w/out"
+                           " TARGET_ENABLED_POWERPC defined!");
+#endif  // TARGET_ENABLED_POWERPC
         }
         else {
           CR6 = CR6_EQ;