[Bug rtl-optimization/56885] New: ICE: in assign_by_spills, at lra-assigns.c:1268 with -O -fschedule-insns -fselective-scheduling

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56885



             Bug #: 56885

           Summary: ICE: in assign_by_spills, at lra-assigns.c:1268 with

                    -O -fschedule-insns -fselective-scheduling

    Classification: Unclassified

           Product: gcc

           Version: 4.9.0

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: rtl-optimization

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: zso...@seznam.cz





Created attachment 29832

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29832

reduced testcase



Compiler output:

$ gcc -O -fschedule-insns -fselective-scheduling testcase.c

testcase.c: In function 'foo':

testcase.c:20:1: internal compiler error: in assign_by_spills, at

lra-assigns.c:1268

 }

 ^

0x8e1e4c assign_by_spills

        /mnt/svn/gcc-trunk/gcc/lra-assigns.c:1268

0x8e3043 lra_assign()

        /mnt/svn/gcc-trunk/gcc/lra-assigns.c:1425

0x8de8a0 lra(_IO_FILE*)

        /mnt/svn/gcc-trunk/gcc/lra.c:2299

0x8937f8 do_reload

        /mnt/svn/gcc-trunk/gcc/ira.c:4619

0x8937f8 rest_of_handle_reload

        /mnt/svn/gcc-trunk/gcc/ira.c:4731

Please submit a full bug report,

with preprocessed source if appropriate.

Please include the complete backtrace with any bug report.

See <http://gcc.gnu.org/bugs.html> for instructions.



Tested revisions:

r197604 - crash

4.8 r196898 - crash

4.7 r196898 - crash

4.6 r196898 - crash