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[Bug rtl-optimization/32084] gfortran 4.3 13%-18% slower for induct.f90 than gcc 4.0-based competitor
- From: "bonzini at gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Dec 2007 08:37:30 -0000
- Subject: [Bug rtl-optimization/32084] gfortran 4.3 13%-18% slower for induct.f90 than gcc 4.0-based competitor
- References: <bug-32084-13404@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #15 from bonzini at gnu dot org 2007-12-10 08:37 -------
As I committed PR32086 to use the cost model, this should be fixed. However, I
prefer to leave it open as a missed optimization since Richard G.'s comments
suggest that: a) there should be a DCE pass after vectorization, b) the cost
model might actually be wrong?
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bonzini at gnu dot org changed:
What |Removed |Added
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CC| |bonzini at gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32084