[Bug tree-optimization/35795] New: [4.4 Regression] Revision 133787 breaks ia64

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

Breakpoint 1, fancy_abort (
    file=0x4000000000c7c9c8
"/net/gnu-13/export/gnu/src/gcc/gcc/gcc/function.c", line=3943,
function=0x4000000000c7cd40 "prepare_function_start")
    at /net/gnu-13/export/gnu/src/gcc/gcc/gcc/diagnostic.c:654
f 1654    internal_error ("in %s, at %s:%d", function, trim_filename (file),
line);
(gdb) f 1
#1  0x400000000043aae0 in prepare_function_start ()
    at /net/gnu-13/export/gnu/src/gcc/gcc/gcc/function.c:3943
3943      gcc_assert (!rtl.emit.x_last_insn);
(gdb)

rtl.emit.x_last_insn is set from

(gdb) bt
#0  emit_barrier () at /net/gnu-13/export/gnu/src/gcc/gcc/gcc/emit-rtl.c:3430
#1  0x400000000090a630 in ia64_output_mi_thunk (file=0x6000000000188870,
    thunk=<value optimized out>, delta=0, vcall_offset=-24,
    function=0x2000000004e09110)
    at /net/gnu-13/export/gnu/src/gcc/gcc/gcc/config/ia64/ia64.c:9684
#2  0x40000000001467e0 in use_thunk (thunk_fndecl=0x2000000004ac27d0,
    emit_p=<value optimized out>)
    at /net/gnu-13/export/gnu/src/gcc/gcc/gcc/cp/method.c:443
#3  0x4000000000155a90 in emit_associated_thunks (fn=<value optimized out>)
    at /net/gnu-13/export/gnu/src/gcc/gcc/gcc/cp/semantics.c:3157
#4  0x40000000009173d0 in cgraph_expand_function (node=0x2000000004da3f00)
    at /net/gnu-13/export/gnu/src/gcc/gcc/gcc/cgraphunit.c:1156
#5  0x400000000091bfc0 in cgraph_optimize ()
    at /net/gnu-13/export/gnu/src/gcc/gcc/gcc/cgraphunit.c:1220
#6  0x40000000000c1350 in cp_write_global_declarations ()
    at /net/gnu-13/export/gnu/src/gcc/gcc/gcc/cp/decl2.c:3471
#7  0x4000000000630280 in toplev_main (argc=<value optimized out>,
    argv=<value optimized out>)
    at /net/gnu-13/export/gnu/src/gcc/gcc/gcc/toplev.c:971
#8  0x40000000002336f0 in main (argc=12, argv=0x60000fffffffb6f8)
    at /net/gnu-13/export/gnu/src/gcc/gcc/gcc/main.c:35


-- 
           Summary: [4.4 Regression] Revision 133787 breaks ia64
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl dot tools at gmail dot com
GCC target triplet: ia64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35795