http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50602
Bug #: 50602
Summary: ICE in tree_nrv, at tree-nrv.c:155 during large LTO
build
Classification: Unclassified
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: [email protected]
ReportedBy: [email protected]
I get this at the end of a large 32bit LTO build. Cannot give you a small test
case unless you want the full builddir. Bisect is difficult because
the build relies on some recent other fixes.
But I have a core file:
#6 0x0000000000b47eb4 in fancy_abort (file=Unhandled dwarf expression opcode
0xf3
) at ../../gcc/gcc/diagnostic.c:893
#7 0x000000000075ac05 in tree_nrv () at ../../gcc/gcc/tree-nrv.c:155
#8 0x000000000068d7ab in execute_one_pass (pass=0x10a9ac0) at
../../gcc/gcc/passes.c:2064
#9 0x000000000068dae5 in execute_pass_list (pass=0x10a9ac0) at
../../gcc/gcc/passes.c:2119
#10 0x000000000075df39 in tree_rest_of_compilation (fndecl=0x2b84d3ea6900) at
../../gcc/gcc/tree-optimize.c:420
#11 0x000000000051ad36 in cgraph_expand_function (node=0x2b84e28a7360) at
../../gcc/gcc/cgraphunit.c:1805
#12 0x000000000051c612 in cgraph_output_in_order () at
../../gcc/gcc/cgraphunit.c:1962
#13 cgraph_optimize () at ../../gcc/gcc/cgraphunit.c:2136
#14 0x00000000004cb7c5 in lto_main () at ../../gcc/gcc/lto/lto.c:2872
...
#7 0x000000000075ac05 in tree_nrv () at ../../gcc/gcc/tree-nrv.c:155
155 gcc_assert (ret_val == result);
(gdb) p ret_val
$3 = (tree_node *) 0x0
(gdb) pt result
type = union tree_node {
tree_base base;
tree_typed typed;
tree_common common;
tree_int_cst int_cst;
tree_real_cst real_cst;
tree_fixed_cst fixed_cst;
tree_vector vector;
tree_string string;
tree_complex complex;
tree_identifier identifier;
tree_decl_minimal decl_minimal;
tree_decl_common decl_common;
tree_decl_with_rtl decl_with_rtl;
tree_decl_non_common decl_non_common;
tree_parm_decl parm_decl;
tree_decl_with_vis decl_with_vis;
tree_var_decl var_decl;
tree_field_decl field_decl;
tree_label_decl label_decl;
tree_result_decl result_decl;
tree_const_decl const_decl;
tree_type_decl type_decl;
tree_function_decl function_decl;
tree_translation_unit_decl translation_unit_decl;
tree_type_common type_common;
tree_type_with_lang_specific type_with_lang_specific;
tree_type_non_common type_non_common;
tree_list list;
tree_vec vec;
tree_exp exp;
tree_ssa_name ssa_name;
tree_block block;
tree_binfo binfo;
tree_statement_list stmt_list;
tree_constructor constructor;
tree_omp_clause omp_clause;
tree_optimization_option optimization;
tree_target_option target_option;
} *
