[Bug rtl-optimization/19038] New: Loop header copying

["dje at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Loop header copying would allow some loops to be transformed from two or more 
basic blocks into a single basic block, allowing better scheduling of the 
instructions in the loop.  This would help SPEC CPU2000 sixtrack benchmark, 
for example.

-- 
           Summary: Loop header copying
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: enhancement
          Priority: P2
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dje at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: *-*-*
  GCC host triplet: *-*-*
GCC target triplet: *-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19038