Merge pull request #8456 from davidlt/extvect-enable-long-double-vect…

…ors-aarch64

ExtVec.h: add long double x2 x4 in ExtVecTraits for AArch64

DataFormats/Math/interface/ExtVec.h

@@ -16,6 +16,16 @@ typedef double VECTOR_EXT( 16 ) float64x2_t;
 typedef double VECTOR_EXT( 32 ) float64x4_t;
 typedef double VECTOR_EXT( 64 ) float64x8_t;
 
+// Enable only for AArch64 for now as this would ICE GCC on
+// x86_64.
+// XXX: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65486
+// XXX: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65491
+#if defined(__aarch64__)
+typedef long double VECTOR_EXT( 32 ) float128x2_t;
+typedef long double VECTOR_EXT( 64 ) float128x4_t;
+typedef long double VECTOR_EXT( 128 ) float128x8_t;
+#endif
+
 // template<typename T, int N> using ExtVec =  T __attribute__( ( vector_size( N*sizeof(T) ) ) );
 
 template<typename T, int N>
@@ -43,6 +53,21 @@ struct ExtVecTraits<double, 4> {
   typedef double VECTOR_EXT( 4*sizeof(double) ) type;
 };
 
+// Enable only for AArch64 for now as this would ICE GCC on
+// x86_64.
+// XXX: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65486
+// XXX: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65491
+#if defined(__aarch64__)
+template<>
+struct ExtVecTraits<long double, 2> {
+  typedef long double VECTOR_EXT( 2*sizeof(long double) ) type;
+};
+
+template<>
+struct ExtVecTraits<long double, 4> {
+  typedef long double VECTOR_EXT( 4*sizeof(long double) ) type;
+};
+#endif
 
 template<typename T, int N> using ExtVec =  typename ExtVecTraits<T,N>::type;