https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88729
Bug ID: 88729
Summary: ICE in libiberty during bootstrap with debug info
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: koenigni at gcc dot gnu.org
Target Milestone: ---
While trying to compile gcc with maximum debug info it ICE'd in
libiberty/d-demangle.c in expand_gimple_statement().
The error happens only on power (powerpc64le-unknown-linux-gnu), on x86-64 it
dies in a different way a bit later (Thomas will file the bug report for that).
Below is the way the compiler was configured and the command that caused the
ICE.
$ CFLAGS="-Og -ggdb3" CXXFLAGS="-Og -ggdb3" ../trunk/configure
--snip--
$ make
--snip--
gcc -c -DHAVE_CONFIG_H -Og -ggdb3 -save-temps -I.
-I../../../trunk/libiberty/../include -W -Wall -Wwrite-strings -Wc++-compat
-Wstrict-prototypes -Wshadow=local -pedantic -D_GNU_SOURCE
../../../trunk/libiberty/d-demangle.c -o noasan/d-demangle.o; \
else true; fi
gcc -c -DHAVE_CONFIG_H -Og -ggdb3 -save-temps -I.
-I../../../trunk/libiberty/../include -W -Wall -Wwrite-strings -Wc++-compat
-Wstrict-prototypes -Wshadow=local -pedantic -D_GNU_SOURCE
../../../trunk/libiberty/d-demangle.c -o d-demangle.o
../../../trunk/libiberty/d-demangle.c: In function ‘dlang_value’:
../../../trunk/libiberty/d-demangle.c:1278:14: warning: this statement may fall
through [-Wimplicit-fallthrough=]
1278 | mangled++;
| ~~~~~~~^~
../../../trunk/libiberty/d-demangle.c:1284:5: note: here
1284 | case '0': case '1': case '2': case '3': case '4':
| ^~~~
../../../trunk/libiberty/d-demangle.c: In function ‘dlang_type’:
../../../trunk/libiberty/d-demangle.c:619:10: warning: this statement may fall
through [-Wimplicit-fallthrough=]
619 | if (!dlang_call_convention_p (mangled))
| ^
../../../trunk/libiberty/d-demangle.c:626:5: note: here
626 | case 'F': /* function T (D) */
| ^~~~
during RTL pass: expand
../../../trunk/libiberty/d-demangle.c: In function ‘dlang_identifier’:
../../../trunk/libiberty/d-demangle.c:850:8: internal compiler error: in
set_value_range, at tree-vrp.c:289
850 | if (strncmp (mangled, "__ctor", len) == 0)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0x10d620b3 set_value_range(value_range*, value_range_type, tree_node*,
tree_node*, bitmap_head*)
../../trunk-caf/gcc/tree-vrp.c:289
0x10d6c2d3 extract_range_from_binary_expr_1(value_range*, tree_code,
tree_node*, value_range*, value_range*)
../../trunk-caf/gcc/tree-vrp.c:1604
0x10d6e76b determine_value_range_1
../../trunk-caf/gcc/tree-vrp.c:6865
0x10d6eb43 determine_value_range(tree_node*,
generic_wide_int<wide_int_storage>*, generic_wide_int<wide_int_storage>*)
../../trunk-caf/gcc/tree-vrp.c:6900
0x10393243 get_size_range(tree_node*, tree_node**, bool)
../../trunk-caf/gcc/calls.c:1258
0x1039a00b maybe_warn_nonstring_arg(tree_node*, tree_node*)
../../trunk-caf/gcc/calls.c:1617
0x1039bafb initialize_argument_information
../../trunk-caf/gcc/calls.c:2197
0x1039cfdf expand_call(tree_node*, rtx_def*, int)
../../trunk-caf/gcc/calls.c:3577
0x10375c2f expand_builtin_strncmp
../../trunk-caf/gcc/builtins.c:4793
0x103861cb expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
../../trunk-caf/gcc/builtins.c:7445
0x1054ae3f expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
../../trunk-caf/gcc/expr.c:10943
0x10564f53 expand_expr
../../trunk-caf/gcc/expr.h:279
0x10564f53 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
../../trunk-caf/gcc/expr.c:8456
0x1054733b expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
../../trunk-caf/gcc/expr.c:11230
0x1055a9c7 expand_expr
../../trunk-caf/gcc/expr.h:279
0x1055a9c7 store_expr(tree_node*, rtx_def*, int, bool, bool)
../../trunk-caf/gcc/expr.c:5556
0x1055c653 expand_assignment(tree_node*, tree_node*, bool)
../../trunk-caf/gcc/expr.c:5420
0x103b6c6f expand_call_stmt
../../trunk-caf/gcc/cfgexpand.c:2685
0x103b6c6f expand_gimple_stmt_1
../../trunk-caf/gcc/cfgexpand.c:3575
0x103b6c6f expand_gimple_stmt
../../trunk-caf/gcc/cfgexpand.c:3734
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Makefile:703: recipe for target 'd-demangle.o' failed
make[3]: *** [d-demangle.o] Error 1
make[3]: Leaving directory
'/home/gcc/trunk-bin/build-powerpc64le-unknown-linux-gnu/libiberty'
Makefile:2686: recipe for target 'all-build-libiberty' failed
make[2]: *** [all-build-libiberty] Error 2
make[2]: Leaving directory '/home/gcc/trunk-bin'
Makefile:27153: recipe for target 'stage1-bubble' failed
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory '/home/gcc/trunk-bin'
Makefile:991: recipe for target 'all' failed
make: *** [all] Error 2
