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[Bug rtl-optimization/50180] New: insn does not satisfy constraints for 444.namd when generating profile data


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50180

             Bug #: 50180
           Summary: insn does not satisfy constraints for 444.namd when
                    generating profile data
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: wschmidt@gcc.gnu.org
                CC: bergner@gcc.gnu.org, meissner@gcc.gnu.org,
                    pthaugen@gcc.gnu.org
              Host: powerpc64-linux
            Target: powerpc64-linux
             Build: powerpc64-linux


Created attachment 25092
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25092
Reduced test case

The following occurs on powerpc64-linux in gcc-4_6-branch and
ibm/gcc-4_6-branch, but not on trunk.  The options listed are the minimum
required to exhibit the bug.  The reduced test case is attached.

> /home/wschmidt/gcc/install/gcc-4_6-branch/libexec/gcc/powerpc64-linux/4.6.2/cc1plus -mcpu=power7 -m32 -O3 -fprofile-generate -ffast-math -fpeel-loops ComputeNonbondedUtil-min-indent.ii 
 Index Molecule::atomvdwtype(int) const ExclusionCheck*
Molecule::get_excl_check_for_atom(int) const const LJTable::TableEntry*
LJTable::table_row(unsigned int) const static void
ComputeNonbondedUtil::calc_pair_energy_fullelect(nonbonded*)
Analyzing compilation unit
Performing interprocedural optimizations
 <*free_lang_data> <visibility> <early_local_cleanups> <tree_profile_ipa>
<increase_alignment> <whole-program> <ipa-profile> <cp> <inline> <pure-const>
<static-var>Assembling functions:
 static void ComputeNonbondedUtil::calc_pair_energy_fullelect(nonbonded*)
ComputeNonbondedUtil-min-indent.ii: In static member function âstatic void
ComputeNonbondedUtil::calc_pair_energy_fullelect(nonbonded*)â:
ComputeNonbondedUtil-min-indent.ii:421:1: error: insn does not satisfy its
constraints:
(insn 2590 1849 1850 39 (set (mem/c:DI (plus:SI (reg/f:SI 1 1)
                (const_int 32760 [0x7ff8])) [14 %sfp+32760 S8 A64])
        (reg:DI 20 20)) ComputeNonbondedUtil-min-indent.ii:206 403
{*movdi_internal32}
     (nil))
ComputeNonbondedUtil-min-indent.ii:421:1: internal compiler error: in
reload_cse_simplify_operands, at postreload.c:403
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


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