https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122854
Bug ID: 122854
Summary: ICE：in digest_init_r, at cp/typeck2.cc
Product: gcc
Version: 15.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: 522024330006 at smail dot nju.edu.cn
Target Milestone: ---
Compiler Explorer: https://godbolt.org/z/dEhz8Y8Ya
Program:
‵‵‵c
struct S {
int i;
};
template <typename T>
void t(T x) {
// COND_EXPR with a REFERENCE_TYPE
auto y = true ? (const volatile S&) {1} : (S&&){2};
}
```
Part of the traceback:
36007.fuzz:10:54: internal compiler error: in digest_init_r, at
cp/typeck2.cc:1397
10 | auto y = true ? (const volatile S&) {1} : (S&&){2};
| ^
0x5da1dc8 internal_error(char const*, ...)
/workspace/install/gcc/src/gcc/gcc/diagnostic-global-context.cc:517
0x5d3f858 fancy_abort(char const*, int, char const*)
/workspace/install/gcc/src/gcc/gcc/diagnostic.cc:1749
0x16f0920 digest_init_r
/workspace/install/gcc/src/gcc/gcc/cp/typeck2.cc:1397
0x16f107a digest_init_flags(tree_node*, tree_node*, int, int)
/workspace/install/gcc/src/gcc/gcc/cp/typeck2.cc:1452
0x15cffa1 finish_compound_literal(tree_node*, tree_node*, int, fcl_t)
/workspace/install/gcc/src/gcc/gcc/cp/semantics.cc:3903
0x163a1e0 build_cplus_new(tree_node*, tree_node*, int)
/workspace/install/gcc/src/gcc/gcc/cp/tree.cc:738
0x1030066 force_rvalue(tree_node*, int)
/workspace/install/gcc/src/gcc/gcc/cp/cvt.cc:570
0xe9b1f7 build_conditional_expr(op_location_t const&, tree_node*, tree_node*,
tree_node*, int)
/workspace/install/gcc/src/gcc/gcc/cp/call.cc:6293
0x16c7f30 build_x_conditional_expr(unsigned long, tree_node*, tree_node*,
tree_node*, int)
/workspace/install/gcc/src/gcc/gcc/cp/typeck.cc:8178
0x137edbb cp_parser_question_colon_clause
/workspace/install/gcc/src/gcc/gcc/cp/parser.cc:11038
0x137f1bd cp_parser_assignment_expression
/workspace/install/gcc/src/gcc/gcc/cp/parser.cc:11104
0x1380331 cp_parser_constant_expression
/workspace/install/gcc/src/gcc/gcc/cp/parser.cc:11404
0x13c1a39 cp_parser_initializer_clause
/workspace/install/gcc/src/gcc/gcc/cp/parser.cc:26869
0x13c1666 cp_parser_initializer
/workspace/install/gcc/src/gcc/gcc/cp/parser.cc:26808
0x13b72b1 cp_parser_init_declarator
/workspace/install/gcc/src/gcc/gcc/cp/parser.cc:24232
0x13989a6 cp_parser_simple_declaration
/workspace/install/gcc/src/gcc/gcc/cp/parser.cc:16532
0x13980ba cp_parser_block_declaration
/workspace/install/gcc/src/gcc/gcc/cp/parser.cc:16351
0x1394051 cp_parser_declaration_statement
/workspace/install/gcc/src/gcc/gcc/cp/parser.cc:15446
0x1389e98 cp_parser_statement
/workspace/install/gcc/src/gcc/gcc/cp/parser.cc:13287
0x138c529 cp_parser_statement_seq_opt
/workspace/install/gcc/src/gcc/gcc/cp/parser.cc:13861
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.
The gcc version I used is:
Using built-in specs.
COLLECT_GCC=/workspace/install/gcc/install_15.2.0/bin/gcc
COLLECT_LTO_WRAPPER=/workspace/install/gcc/install_15.2.0/libexec/gcc/x86_64-pc-linux-gnu/15.2.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /workspace/install/gcc/src/gcc/configure --enable-coverage
--enable-checking --disable-multilib --disable-shared --disable-bootstrap
--enable-languages=c,c++ --prefix=/workspace/install/gcc/install_15.2.0
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 15.2.0 (GCC)
