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Subject: [Bug target/25500] [4.0/4.1/4.2 Regression]: SSE2 vectorized code is slower on 4.x.x than previous
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------- Comment #19 from bonzini at gnu dot org  2006-08-07 07:59 -------
This patchlet makes GCC use element-copy for struct FF:

Index: expr.c
===================================================================
--- expr.c      (revision 115990)
+++ expr.c      (working copy)
@@ -4763,7 +4763,7 @@ count_type_elements (tree type, bool all
       return 2;

     case VECTOR_TYPE:
-      return TYPE_VECTOR_SUBPARTS (type);
+      return TYPE_MODE (type) == BLKmode ? TYPE_VECTOR_SUBPARTS (type) : 1;

     case INTEGER_TYPE:
     case REAL_TYPE:


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25500