[Bug lto/65603] New: [5 Regression] lto1: internal compiler error: in as_a, at is-a.h:192

["hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65603

            Bug ID: 65603
           Summary: [5 Regression] lto1: internal compiler error: in as_a,
                    at is-a.h:192
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com

On Linux/x86-64, r221721 gave

gcc -c -o obstack.o   -DSPEC_CPU2000_LP64 -Dalloca=_alloca        -O3
-funroll-loops -ffast-math -fwhole-program -flto=jobserver -fuse-linker-plugin 
obstack.c
gcc     -O3 -funroll-loops -ffast-math -fwhole-program -flto=jobserver
-fuse-linker-plugin -DSPEC_CPU2000_LP64 c-parse.o c-lang.o c-lex.o c-pragma.o
c-decl.o c-typeck.o c-convert.o c-aux-info.o c-common.o c-iterate.o toplev.o
version.o tree.o print-tree.o stor-layout.o fold-const.o function.o stmt.o
expr.o calls.o expmed.o explow.o optabs.o varasm.o rtl.o print-rtl.o rtlanal.o
emit-rtl.o real.o dbxout.o sdbout.o dwarfout.o xcoffout.o integrate.o jump.o
cse.o loop.o unroll.o flow.o stupid.o combine.o regclass.o local-alloc.o
global.o reload.o reload1.o caller-save.o insn-peep.o reorg.o sched.o final.o
recog.o reg-stack.o insn-opinit.o insn-recog.o insn-extract.o insn-output.o
insn-emit.o insn-attrtab.o m88k.o getpwd.o convert.o bc-emit.o bc-optab.o
obstack.o   -lm  -o cc1
In function 'set_float_handler.constprop':
lto1: internal compiler error: in as_a, at is-a.h:192
0x6856d8 gcall* as_a<gcall*, gimple_statement_base>(gimple_statement_base*)
    ../../src-trunk/gcc/is-a.h:192
0x6856d8 cgraph_update_edges_for_call_stmt_node
    ../../src-trunk/gcc/cgraph.c:1524
0x685a19 cgraph_update_edges_for_call_stmt(gimple_statement_base*, tree_node*,
gimple_statement_base*)
    ../../src-trunk/gcc/cgraph.c:1588
0xa96570 fold_marked_statements
    ../../src-trunk/gcc/tree-inline.c:4843
0xaa39c4 tree_function_versioning(tree_node*, tree_node*, vec<ipa_replace_map*,
va_gc, vl_embed>*, bool, bitmap_head*, bool, bitmap_head*, basic_block_def*)
    ../../src-trunk/gcc/tree-inline.c:5813
0x692c13 cgraph_materialize_clone
    ../../src-trunk/gcc/cgraphclones.c:1056
0x692c13 symbol_table::materialize_all_clones()
    ../../src-trunk/gcc/cgraphclones.c:1153
0x68d969 symbol_table::compile()
    ../../src-trunk/gcc/cgraphunit.c:2326
0x602f84 lto_main()
    ../../src-trunk/gcc/lto/lto.c:3496
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.
make[4]: *** [/tmp/ccBkg1Up.ltrans3.ltrans.o] Error 1