https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119303
Bug ID: 119303
Summary: ICE: error reporting routines re-entered. in
warning_at (diagnostic-global-context.cc:185) with
-std=c++20
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Keywords: diagnostic, ice-on-valid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 60767
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60767&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -std=c++20 testcase.C -w -c
$ x86_64-pc-linux-gnu-gcc -std=c++20 testcase.C
internal compiler error: error reporting routines re-entered.
0x3105183 warning_at(unsigned long, diagnostic_option_id, char const*, ...)
/repo/gcc-trunk/gcc/diagnostic-global-context.cc:185
0x1313bb9 c_common_truthvalue_conversion(unsigned long, tree_node*)
/repo/gcc-trunk/gcc/c-family/c-common.cc:3609
0x107ef83 ocp_convert(tree_node*, tree_node*, int, int, int)
/repo/gcc-trunk/gcc/cp/cvt.cc:882
0x108006a cp_convert(tree_node*, tree_node*, int)
/repo/gcc-trunk/gcc/cp/cvt.cc:643
0x108006a cp_convert_and_check(tree_node*, tree_node*, int)
/repo/gcc-trunk/gcc/cp/cvt.cc:664
0xff80cf convert_like_internal
/repo/gcc-trunk/gcc/cp/call.cc:9336
0xffc5ef convert_like
/repo/gcc-trunk/gcc/cp/call.cc:9408
0xffc5ef perform_implicit_conversion_flags(tree_node*, tree_node*, int, int)
/repo/gcc-trunk/gcc/cp/call.cc:13995
0x12b97ed cp_build_unary_op(tree_code, tree_node*, bool, int)
/repo/gcc-trunk/gcc/cp/typeck.cc:7599
0x100b0c2 build_new_op(op_location_t const&, tree_code, int, tree_node*,
tree_node*, tree_node*, tree_node*, tree_node**, int)
/repo/gcc-trunk/gcc/cp/call.cc:7673
0x12b811e build_x_unary_op(unsigned long, tree_code, cp_expr, tree_node*, int)
/repo/gcc-trunk/gcc/cp/typeck.cc:6995
0x1229a5c tsubst_expr(tree_node*, tree_node*, int, tree_node*)
/repo/gcc-trunk/gcc/cp/pt.cc:20755
0x12306ad tsubst_expr(tree_node*, tree_node*, int, tree_node*)
/repo/gcc-trunk/gcc/cp/pt.cc:13002
0x12306ad tsubst_template_arg(tree_node*, tree_node*, int, tree_node*)
/repo/gcc-trunk/gcc/cp/pt.cc:13013
0x12306ad tsubst_template_arg(tree_node*, tree_node*, int, tree_node*)
/repo/gcc-trunk/gcc/cp/pt.cc:13001
0x123e704 tsubst_template_args(tree_node*, tree_node*, int, tree_node*)
/repo/gcc-trunk/gcc/cp/pt.cc:14221
0x1224f83 tsubst(tree_node*, tree_node*, int, tree_node*)
/repo/gcc-trunk/gcc/cp/pt.cc:16503
0x1225199 tsubst_entering_scope
/repo/gcc-trunk/gcc/cp/pt.cc:10041
0x1225199 tsubst(tree_node*, tree_node*, int, tree_node*)
/repo/gcc-trunk/gcc/cp/pt.cc:17067
0x10ea5cc dump_template_bindings
/repo/gcc-trunk/gcc/cp/error.cc:596
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-20250315085318-r15-8068-g254549d2bb9bb3-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/15.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--disable-bootstrap --with-cloog --with-ppl --with-isl
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --enable-libsanitizer
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-20250315085318-r15-8068-g254549d2bb9bb3-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.1 20250315 (experimental) (GCC)
