https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65774
Bug ID: 65774
Summary: [6.0 regression] FAIL:
gcc.dg/builtin-arith-overflow-1.c (internal compiler
error)
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: sch...@linux-m68k.org
CC: rguenth at gcc dot gnu.org
Target: ia64-*-*
This was broken by r222085.
(gdb) r -O ../../gcc/testsuite/gcc.dg/builtin-arith-overflow-1.c
Starting program: /usr/local/gcc/test/Build/gcc/cc1 -O
../../gcc/testsuite/gcc.dg/builtin-arith-overflow-1.c
fn1 fn2 fn3 fn4 fn5 fn6 fn7 main
Analyzing compilation unit
Performing interprocedural optimizations
<*free_lang_data> <visibility> <build_ssa_passes> <opt_local_passes>
<free-inline-summary> <whole-program> <profile_estimate> <inline> <pure-const>
<static-var> <single-use> <comdats>Assembling functions:
fn1
Breakpoint 1, fancy_abort (file=0x4000000001ceb938 "../../gcc/tree.c",
line=1465,
function=0x4000000001ceb7a0 <wide_int_to_tree(tree_node*,
generic_wide_int<wide_int_ref_storage<false> > const&)::__FUNCTION__>
"wide_int_to_tree")
at ../../gcc/diagnostic.c:1291
1291 internal_error ("in %s, at %s:%d", function, trim_filename (file),
line);
(gdb) up
#1 0x40000000015778f0 in wide_int_to_tree (type=0x2000000000da1c38, pcst=...)
at ../../gcc/tree.c:1465
1465 gcc_unreachable ();
(gdb) p type
$1 = (tree_node *) 0x2000000000da1c38
(gdb) pt
warning: Expression is not an assignment (and might have no effect)
<complex_type 0x2000000000da1c38 complex int
type <integer_type 0x2000000000da0690 int sizes-gimplified public SI
size <integer_cst 0x2000000000d62580 constant 32>
unit size <integer_cst 0x2000000000d62598 constant 4>
align 32 symtab 0 alias set -1 canonical type 0x2000000000da0690
precision 32 min <integer_cst 0x2000000000d62538 -2147483648> max <integer_cst
0x2000000000d62550 2147483647>
pointer_to_this <pointer_type 0x2000000000da17a0>>
CSI
size <integer_cst 0x2000000000d62340 type <integer_type 0x2000000000da0150
bitsizetype> constant 64>
unit size <integer_cst 0x2000000000d62358 type <integer_type
0x2000000000da00a8 sizetype> constant 8>
align 32 symtab 0 alias set -1 canonical type 0x2000000000da1c38>
(gdb) up
#2 0x400000000118d900 in bit_value_binop (code=COMPLEX_EXPR,
type=0x2000000000da1c38, rhs1=<optimized out>, rhs2=<optimized out>)
at ../../gcc/tree-ssa-ccp.c:1558
1558 val.value = wide_int_to_tree (type, value);
(gdb) bt
#0 fancy_abort (file=0x4000000001ceb938 "../../gcc/tree.c", line=1465,
function=0x4000000001ceb7a0 <wide_int_to_tree(tree_node*,
generic_wide_int<wide_int_ref_storage<false> > const&)::__FUNCTION__>
"wide_int_to_tree")
at ../../gcc/diagnostic.c:1291
#1 0x40000000015778f0 in wide_int_to_tree (type=0x2000000000da1c38, pcst=...)
at ../../gcc/tree.c:1465
#2 0x400000000118d900 in bit_value_binop (code=COMPLEX_EXPR,
type=0x2000000000da1c38, rhs1=<optimized out>, rhs2=<optimized out>)
at ../../gcc/tree-ssa-ccp.c:1558
#3 0x4000000001190750 in evaluate_stmt (stmt=0x2000000000f509f8)
at ../../gcc/tree-ssa-ccp.c:1790
#4 0x4000000001193870 in visit_assignment (stmt=0x2000000000f509f8,
output_p=0x600ffffffffef038) at ../../gcc/tree-ssa-ccp.c:2262
#5 0x4000000001194690 in ccp_visit_stmt (stmt=0x2000000000f509f8,
taken_edge_p=0x600ffffffffef030, output_p=0x600ffffffffef038)
at ../../gcc/tree-ssa-ccp.c:2375
#6 0x4000000001302050 in simulate_stmt (stmt=0x2000000000f509f8)
at ../../gcc/tree-ssa-propagate.c:348
#7 0x4000000001303610 in simulate_block (block=<optimized out>)
at ../../gcc/tree-ssa-propagate.c:471
#8 ssa_propagate (visit_stmt=<optimized out>, visit_phi=<optimized out>)
at ../../gcc/tree-ssa-propagate.c:888
#9 0x4000000001189030 in do_ssa_ccp () at ../../gcc/tree-ssa-ccp.c:2386
#10 (anonymous namespace)::pass_ccp::execute (this=0x2000000000f000d0)
at ../../gcc/tree-ssa-ccp.c:2419
#11 0x4000000000ce2350 in execute_one_pass (pass=0x60000000002ba4e0)
at ../../gcc/passes.c:2330
#12 0x4000000000ce2b00 in execute_pass_list_1 (pass=0x60000000002ba4e0)
at ../../gcc/passes.c:2383
#13 0x4000000000ce2b50 in execute_pass_list_1 (pass=0x60000000002ba360)
at ../../gcc/passes.c:2384
#14 0x4000000000ce2c20 in execute_pass_list (fn=<optimized out>,
pass=0x60000000002ba2a0) at ../../gcc/passes.c:2394
#15 0x400000000050be50 in cgraph_node::expand (this=0x2000000000d80350)
at ../../gcc/cgraphunit.c:1895
#16 0x400000000050f9a0 in expand_all_functions ()
at ../../gcc/cgraphunit.c:2031
#17 0x4000000000510a80 in symbol_table::compile (this=0x2000000000da0000)
at ../../gcc/cgraphunit.c:2384
#18 0x4000000000512a00 in symbol_table::finalize_compilation_unit (
this=0x2000000000da0000) at ../../gcc/cgraphunit.c:2461
#19 0x4000000000160230 in c_write_global_declarations ()
at ../../gcc/c/c-decl.c:10797
#20 0x4000000000ec5040 in compile_file () at ../../gcc/toplev.c:608
#21 0x4000000000ec96a0 in do_compile () at ../../gcc/toplev.c:2076
#22 toplev::main (this=<optimized out>,
argc=<error reading variable: Cannot access memory at address 0x35>,
argv=0x600ffffffffef744) at ../../gcc/toplev.c:2174
#23 0x4000000001aeb9f0 in main (argc=3, argv=0x600ffffffffef3e8)
at ../../gcc/main.c:39
