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On Sep 7, 2008, at 9:47, "schwab at suse dot de" <[EMAIL PROTECTED] > wrote:

This is broken during sched2 pass.  Compiled with -m64 -O2.

       lwz 10,1492(7)   # nargs,            <--- uninitialized
       std 9,1272(7)    # specpdl.19,
       li 9,16  # iftmp.21,
       std 3,1488(7)    # nargs, nargs
       std 4,1496(7)    # args, args
       cmpwi 7,10,3     #, tmp307,


Just looking at the assembler suggest an aliasing issue. I had a quick look at the code but I did see anything would give an alaising issue. Though there were some unions.


--
          Summary: [4.3/4.4 regression] Invalid insn scheduling
          Product: gcc
          Version: 4.3.1
           Status: UNCONFIRMED
         Keywords: wrong-code
         Severity: normal
         Priority: P3
        Component: rtl-optimization
       AssignedTo: unassigned at gcc dot gnu dot org
       ReportedBy: schwab at suse dot de
GCC target triplet: powerpc64-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37408

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