[Bug target/65278] [5 Regression] ICE on powerpc{64}-linux-gnu

[aldyh at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65278

Aldy Hernandez <aldyh at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-03-02
            Summary|[5 Regression] ICE (in      |[5 Regression] ICE on
                   |output_718, at              |powerpc{64}-linux-gnu
                   |config/rs6000/rs6000.md:115 |
                   |92) on powerpc-linux-gnu    |
     Ever confirmed|0                           |1

--- Comment #5 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Ouch.  Can't reproduce with a stage1 compiler, but a full bootstrapped compiler
on ppc64-linux-gnu issues the following:

[aldyh@gcc1-power7 gcc]$ ./cc1plus a.cc -O2 -quiet -fPIC  -g
a.cc: In member function ‘virtual double B::_ZTv0_n24_NK1B5m_fn1ERKiS1_(const
int&, const int&) const’:
a.cc:14:42: error: unrecognizable insn:
 TwoTreeLikelihood::~TwoTreeLikelihood() {}
                                          ^
(call_insn/j 5 4 6 (parallel [
            (call (mem:SI (symbol_ref/i:DI
("_ZNK17TwoTreeLikelihood5m_fn1ERKiS1_") [flags 0x1] <function_decl
0x3fffababc138 m_fn1>) [0  S4 A8])
                (const_int 0 [0]))
            (use (const_int 0 [0]))
            (use (reg:SI 65 lr))
            (simple_return)
        ]) a.cc:8 -1
     (nil)
    (nil))
a.cc:14:42: internal compiler error: in insn_min_length, at
config/rs6000/rs6000.md:7813
0x109943bb _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
    /home/aldyh/src/gcc/gcc/rtl-error.c:110
0x1099440f _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
    /home/aldyh/src/gcc/gcc/rtl-error.c:118
0x10dc3a3b insn_min_length(rtx_insn*)
    /home/aldyh/src/gcc/gcc/config/rs6000/rs6000.md:7813
0x10688bdb shorten_branches(rtx_insn*)
    /home/aldyh/src/gcc/gcc/final.c:1221
0x10d7ca1b rs6000_output_mi_thunk
    /home/aldyh/src/gcc/gcc/config/rs6000/rs6000.c:25840
0x1057483b cgraph_node::expand_thunk(bool, bool)
    /home/aldyh/src/gcc/gcc/cgraphunit.c:1555
0x10575d83 cgraph_node::assemble_thunks_and_aliases()
    /home/aldyh/src/gcc/gcc/cgraphunit.c:1816
0x1057610f cgraph_node::expand()
    /home/aldyh/src/gcc/gcc/cgraphunit.c:1941
0x10577ea7 expand_all_functions
    /home/aldyh/src/gcc/gcc/cgraphunit.c:2014
0x10577ea7 symbol_table::compile()
    /home/aldyh/src/gcc/gcc/cgraphunit.c:2367
0x1057a587 symbol_table::compile()
    /home/aldyh/src/gcc/gcc/cgraphunit.c:2447
0x1057a587 symbol_table::finalize_compilation_unit()
    /home/aldyh/src/gcc/gcc/cgraphunit.c:2444
0x102b90f3 cp_write_global_declarations()
    /home/aldyh/src/gcc/gcc/cp/decl2.c:4754
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