[Bug c/33426] New: Support of #pragma ivdep

Thu, 13 Sep 2007 14:03:52 -0700 

When comparing run time on some (floating point) CPU intensive code, we find
that Intel's ICC (9.1) compiler runs significantly faster (30 - 50%) for some
programs - this seems to stem (large) part from ICC's ability to take advantage
of #pragma ivdep. There may be some other differences of course. Tests were run
using gcc 3.3.3 - re-compiling relevant key code with gcc 4.1.2 did not make
any real change. 

Wondering if there are any plans to support this ?

thanks

gene/


-- 
           Summary: Support of #pragma ivdep
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: gjunk at sapience dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33426

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