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[Bug tree-optimization/31079] 20% difference between ifort/gfortran, missed vectorization
- From: "jv244 at cam dot ac dot uk" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Aug 2008 13:31:42 -0000
- Subject: [Bug tree-optimization/31079] 20% difference between ifort/gfortran, missed vectorization
- References: <bug-31079-6642@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #13 from jv244 at cam dot ac dot uk 2008-08-19 13:31 -------
(In reply to comment #11)
> This (PR31079_11.f90) should be a replacement for comment #4, and illustrates
> the vectorizer issue.
The patch Richard posted in PR37150 also improves this PR31079_11.f90 testcase
a lot:
ifort : 2.54
gfortran (unpatched): 4.00
gfortran (patched) : 2.96
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31079