[Bug tree-optimization/44688] New: [4.6 Regression] Excessive code-size growth at -O3

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

The enablement of -fprefetch-loop-arrays by default at -O3 has caused
excessive code-size and compile-time growth for Polyhedron and SPEC CPU 2006.

http://gcc.opensuse.org/SPEC/CFP/sb-barbella.suse.de-head-64-2006/times.html
http://gcc.opensuse.org/SPEC/CFP/sb-barbella.suse.de-head-64-2006/size.html


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           Summary: [4.6 Regression] Excessive code-size growth at -O3
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Keywords: compile-time-hog
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rguenth at gcc dot gnu dot org
GCC target triplet: x86_64-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44688