erasure-code: workaround i386 optimization bug with SHEC

http://tracker.ceph.com/issues/12936 Fixes: #12936

Signed-off-by: Loic Dachary <ldachary@redhat.com>

diff --git a/src/erasure-code/shec/ErasureCodeShec.h b/src/erasure-code/shec/ErasureCodeShec.h
index bf07b804193735507201d4527d6417b35032ad54..9eeb3d42e548a4fb0e1b4caf1d3b796379c92cd3 100644 (file)
--- a/src/erasure-code/shec/ErasureCodeShec.h
+++ b/src/erasure-code/shec/ErasureCodeShec.h
@@ -124,7 +124,12 @@ public:
 private:
   virtual int parse(const ErasureCodeProfile &profile) = 0;
 
-  virtual double shec_calc_recovery_efficiency1(int k, int m1, int m2, int c1, int c2);
+  virtual double shec_calc_recovery_efficiency1(int k, int m1, int m2, int c1, int c2)
+  // http://tracker.ceph.com/issues/12936 shec fails i386 make check
+#if defined(__i386__) && defined(__GNUC__)
+    __attribute__((optimize(0)))
+#endif    
+    ;
   virtual int shec_make_decoding_matrix(bool prepare,
                                         int *want, int *avails,
                                         int *decoding_matrix,