Fix ASAN issue in extractorf when using AVX2

Author: martin-steinegger

src/commons/Orf.cpp

@@ -246,12 +246,15 @@ void Orf::findForward(const char *sequence, const size_t sequenceLength, std::ve
 
     // Offset the start position by reading frame
     size_t from[FRAMES] = {frameOffset[0], frameOffset[1], frameOffset[2]};
-
     simd_int startCodonsHi = simdi_load((simd_int*)startCodons);
-    simd_int startCodonsLo = simdi_loadu((simd_int*)(startCodons + 16));
-
-    simd_int stopCodonsHi = simdi_load((simd_int*)stopCodons);
-    simd_int stopCodonsLo = simdi_loadu((simd_int*)(stopCodons + 16));
+    simd_int stopCodonsHi  = simdi_load((simd_int*)stopCodons);
+#ifdef AVX2
+    simd_int startCodonsLo = simdi_setzero();
+    simd_int stopCodonsLo  = simdi_setzero();
+#else
+    simd_int startCodonsLo = simdi_load((simd_int*)startCodons + 16);
+    simd_int stopCodonsLo  = simdi_load((simd_int*)stopCodons + 16);
+#endif
     for (size_t i = 0;  i < sequenceLength - (FRAMES - 1);  i += FRAMES) {
         for(size_t position = i; position < i + FRAMES; position++) {
             // make everything that is not CHAR_MAX upper case