[Bug ipa/64550] New: IPA fixes cause ICE in tree-ssa.c:939

[anton at samba dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64550

            Bug ID: 64550
           Summary: IPA fixes cause ICE in tree-ssa.c:939
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: anton at samba dot org

I just hit the following ICE on our autobuilder:


/var/lib/jenkins/workspace/gcc_kernel_build/linux/net/core/dev.c: In function
‘dev_change_net_namespace.part.23’:
/var/lib/jenkins/workspace/gcc_kernel_build/linux/net/core/dev.c:7435:1:
internal compiler error: in verify_ssa, at tree-ssa.c:939
 subsys_initcall(net_dev_init);
 ^
0x10a5c9c7 verify_ssa(bool, bool)
        ../../gcc/gcc/tree-ssa.c:939
0x1070531b execute_function_todo
        ../../gcc/gcc/passes.c:1947
0x10705f63 do_per_function
        ../../gcc/gcc/passes.c:1639
0x10706127 execute_todo
        ../../gcc/gcc/passes.c:1997
Please submit a full bug report,


The two changes are:


Commit 04478c40f34f1b104f0281393b950020ddafdf82 by marxin
Fix for ipa/PR64503

    PR ipa/64503
    * sreal.c (sreal::dump): Change unsigned format to signed for
    m_exp value.
    (sreal::to_double): Replace exp2 with scalbln.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@219378
138bc75d-0d04-0410-961f-82ee72b054a4


and:


Commit 05e3f0539fbe21709229cd34e1fa0d6ead1b0d2f by marxin
IPA ICF: compare_operand is split to multiple functions.

    * ipa-icf-gimple.c (func_checker::compare_ssa_name): Enhance SSA
    name comparison.
    (func_checker::compare_memory_operand): New function.
    (func_checker::compare_operand): Split case to newly
    added functions.
    (func_checker::compare_cst_or_decl): New function.
    (func_checker::compare_gimple_call): Identify
    memory operands.
    (func_checker::compare_gimple_assign): Likewise.
    * ipa-icf-gimple.h: New function.