[LLVMbugs] [Bug 6010] New: Accumulator not pulled out of a loop

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=6010

           Summary: Accumulator not pulled out of a loop
           Product: new-bugs
           Version: 2.6
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Keywords: code-quality
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: bearophile at mailas.com
                CC: llvmbugs at cs.uiuc.edu


See the attach for full info.

At the moment this problem is shown here in some D code compiled with ldc D
compiler. I can translate that D program in C, but it will require probably one
hour or more of work, so I'd like to avoid it if possible (or I may I may be
able to produce a reduced C version).

I don't know the cause of this problem, it may be again a "restrict"-related
thing, as shown in bugs 5968 and 2547. Even if this is true, this can be useful
to show that this is a common enough problem. In the meantime in attach there
is the LL code of both conditionally compiled versions.


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