[Bug rtl-optimization/37240] New: missed if-conversion opportunity

[bonzini at gnu dot org]

In the attached code, changing

        if (numbers[maxIdx] < numbers[maxIdx + 1]) maxIdx++; 

to

        maxIdx += numbers[maxIdx] < numbers[maxIdx + 1];

gives a 10% performance speedup at -O3.


-- 
           Summary: missed if-conversion opportunity
           Product: gcc
           Version: 4.3.2
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bonzini at gnu dot org
GCC target triplet: x86_64-pc-linux-gnu
 BugsThisDependsOn: 37239


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37240