[Bug tree-optimization/25918] gcc.dg/vect/vect-reduc-dot-s16.c scan-tree-dump-times vectorized 1 loops 1 and gcc.dg/vect/vect-reduc-pattern-2.c scan-tree-dump-times vectorized 2 loops 1 fail

[wilson at gcc dot gnu dot org]

------- Comment #5 from wilson at gcc dot gnu dot org  2006-02-08 02:19 -------
Dorit's analysis of vect-reduc-pattern-2.c in comment #1 is correct.  The loop
that sums char into int is not vectorized, because the widen_ssumv8qi3 pattern
has the wrong output mode (HI instead of SI).  Dorit's suggested solution looks
reasonable to me.


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wilson at gcc dot gnu dot org changed:

           What    |Removed                     |Added
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25918