Workaround for missing intrinsic on gcc < 9

facebookresearch · May 10, 2024 · 1bc9b8c · 1bc9b8c
1 parent 943d08b
commit 1bc9b8c
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/faiss/impl/code_distance/code_distance-avx2.h b/faiss/impl/code_distance/code_distance-avx2.h
@@ -16,6 +16,11 @@
 #include <faiss/impl/ProductQuantizer.h>
 #include <faiss/impl/code_distance/code_distance-generic.h>
 
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78782
+#if defined(__GNUC__) && __GNUC__ < 9
+#define _mm_loadu_si64(x) (_mm_loadl_epi64((__m128i_u*)x))
+#endif
+
 namespace {
 
 inline float horizontal_sum(const __m128 v) {