https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120379
Bug ID: 120379
Summary: [modules] -fdeps-format=p1689r5 causes ICE when two
export module declarations are provided
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: nshead at gcc dot gnu.org
Blocks: 103524
Target Milestone: ---
The following sample, used by CMake for scanning dependencies, ICEs:
$ cat main.cpp
export module A;
export module B;
$ g++ -fmodules -fdeps-format=p1689r5 -MD main.cpp
/home/wreien/m/e.cpp:2:1: internal compiler error: in deps_add_module_target,
at libcpp/mkdeps.cc:357
2 | export module B;
| ^~~~~~
0x22a22d6 internal_error(char const*, ...)
../../gcc-15/gcc/diagnostic-global-context.cc:517
0x7d1c27 fancy_abort(char const*, int, char const*)
../../gcc-15/gcc/diagnostic.cc:1749
0x22ede03 deps_add_module_target(mkdeps*, char const*, char const*, bool, bool)
../../gcc-15/libcpp/mkdeps.cc:357
0x90352b preprocessed_module(cpp_reader*)
../../gcc-15/gcc/cp/module.cc:21865
0x8b8e07 module_token_cdtor(cpp_reader*, unsigned long)
../../gcc-15/gcc/cp/lex.cc:581
0x980e72 cp_lexer_new_main
../../gcc-15/gcc/cp/parser.cc:871
0x980e72 c_parse_file()
../../gcc-15/gcc/cp/parser.cc:53959
0xa89b79 c_common_parse_file()
../../gcc-15/gcc/c-family/c-opts.cc:1381
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.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103524
[Bug 103524] [meta-bug] modules issue
