https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89715
Bug ID: 89715
Summary: ICE deep in C++ frontend building g++.dg/cpp0x/cond1.C
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: segher at gcc dot gnu.org
Target Milestone: ---
With a compiler bootstrapped with --with-cpu=power7 I get
spawn -ignore SIGHUP /home/segher/build/tot/gcc/testsuite/g++13/../../xg++
-B/ho
me/segher/build/tot/gcc/testsuite/g++13/../../
/home/segher/src/gcc/gcc/testsuit
e/g++.dg/cpp0x/alias-decl-64.C -fno-diagnostics-show-caret
-fno-diagnostics-show
-line-numbers -fdiagnostics-color=never -nostdinc++
-I/home/segher/build/tot/pow
erpc64-unknown-linux-gnu/32/libstdc++-v3/include/powerpc64-unknown-linux-gnu
-I/
home/segher/build/tot/powerpc64-unknown-linux-gnu/32/libstdc++-v3/include
-I/hom
e/segher/src/gcc/libstdc++-v3/libsupc++
-I/home/segher/src/gcc/libstdc++-v3/incl
ude/backward -I/home/segher/src/gcc/libstdc++-v3/testsuite/util
-fmessage-length
=0 -std=c++17 -pedantic-errors -Wno-long-long -S -m32 -o alias-decl-64.s
/home/segher/src/gcc/gcc/testsuite/g++.dg/cpp0x/alias-decl-64.C:14:37: internal
compiler error: canonical types differ for identical types 'A<#'using_decl' not
supported by dump_expr#<expression error> >' and 'A<#'using_decl' not supported
by dump_expr#<expression error> >'
0x1050d403 comptypes(tree_node*, tree_node*, int)
/home/segher/src/gcc/gcc/cp/typeck.c:1479
0x103eb56f template_args_equal(tree_node*, tree_node*, bool)
/home/segher/src/gcc/gcc/cp/pt.c:8732
0x103eb56f template_args_equal(tree_node*, tree_node*, bool)
/home/segher/src/gcc/gcc/cp/pt.c:8675
0x103eae0f comp_template_args(tree_node*, tree_node*, tree_node**, tree_node**,
bool)
/home/segher/src/gcc/gcc/cp/pt.c:8780
0x103eae0f comp_template_args(tree_node*, tree_node*, tree_node**, tree_node**,
bool)
/home/segher/src/gcc/gcc/cp/pt.c:8760
0x10400b1f spec_hasher::equal(spec_entry*, spec_entry*)
/home/segher/src/gcc/gcc/cp/pt.c:1701
0x1048a4cf hash_table<spec_hasher, xcallocator>::find_with_hash(spec_entry*
const&, unsigned int)
/home/segher/src/gcc/gcc/hash-table.h:850
0x10456157 lookup_template_class_1
/home/segher/src/gcc/gcc/cp/pt.c:9388
0x10456157 lookup_template_class(tree_node*, tree_node*, tree_node*,
tree_node*, int, int)
/home/segher/src/gcc/gcc/cp/pt.c:9715
0x104af04b finish_template_type(tree_node*, tree_node*, int)
/home/segher/src/gcc/gcc/cp/semantics.c:3289
0x103ab2f7 cp_parser_template_id
/home/segher/src/gcc/gcc/cp/parser.c:16423
0x103ab6fb cp_parser_class_name
/home/segher/src/gcc/gcc/cp/parser.c:23212
0x103afd77 cp_parser_qualifying_entity
/home/segher/src/gcc/gcc/cp/parser.c:6693
0x103afd77 cp_parser_nested_name_specifier_opt
/home/segher/src/gcc/gcc/cp/parser.c:6379
0x103b090b cp_parser_nested_name_specifier
/home/segher/src/gcc/gcc/cp/parser.c:6619
0x103b964f cp_parser_elaborated_type_specifier
/home/segher/src/gcc/gcc/cp/parser.c:18261
0x1039f113 cp_parser_type_specifier
/home/segher/src/gcc/gcc/cp/parser.c:17399
0x103a0623 cp_parser_decl_specifier_seq
/home/segher/src/gcc/gcc/cp/parser.c:14066
0x103c8b6f cp_parser_parameter_declaration
/home/segher/src/gcc/gcc/cp/parser.c:22300
0x103c967f cp_parser_parameter_declaration_list
/home/segher/src/gcc/gcc/cp/parser.c:22123
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.
compiler exited with status 1
This didn't happen a few months ago; I don't know exactly when it did start.
