1 files changed, 35 insertions, 5 deletions
diff --git a/volk/lib/volk_rank_archs.c b/volk/lib/volk_rank_archs.c
index 25ad75cda..e10433fd0 100644
--- a/volk/lib/volk_rank_archs.c
+++ b/volk/lib/volk_rank_archs.c
@@ -1,10 +1,40 @@
-#include<volk_rank_archs.h>
-#include<stdio.h>
+#include <volk_rank_archs.h>
+#include <volk/volk_prefs.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
-unsigned int volk_rank_archs(const int* arch_defs, unsigned int n_archs, unsigned int arch) {
-  int i = 1;
+unsigned int get_index(const char *indices[], unsigned int n_archs, const char *arch_name) {
+    int i;
+    for(i=0; i<n_archs; i++) {
+        if(!strncmp(indices[i], arch_name, 20)) {
+            return i;
+        }
+    }
+    //something terrible should happen here
+    printf("Volk warning: no arch found, returning generic impl\n");
+    return get_index(indices, n_archs, "generic"); //but we'll fake it for now
+}
+
+unsigned int volk_rank_archs(const char *indices[], const int* arch_defs, unsigned int n_archs, const char* name, unsigned int arch) {
+  int i;
   unsigned int best_val = 0;
-  for(; i < n_archs; ++i) {
+  static struct volk_arch_pref *volk_arch_prefs;
+  static int n_arch_prefs = 0;
+  static int prefs_loaded = 0;
+  if(!prefs_loaded) {
+      n_arch_prefs = load_preferences(&volk_arch_prefs);
+      prefs_loaded = 1;
+  }
+  
+  //now look for the function name in the prefs list
+  for(i=0; i < n_arch_prefs; i++) {
+      if(!strncmp(name, volk_arch_prefs[i].name, 128)) { //found it
+        return get_index(indices, n_archs, volk_arch_prefs[i].arch);
+      }
+  }
+  
+  for(i=1; i < n_archs; ++i) {
     if((arch_defs[i]&(!arch)) == 0) {
       best_val = (arch_defs[i] > arch_defs[best_val + 1]) ? i-1 : best_val;
     }