https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109765
Bug ID: 109765 Summary: [14 regression] ICE in real_to_decimal_for_mode Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: sjames at gcc dot gnu.org Target Milestone: --- Happens for all sorts of input, noticed initially with Meson's test program: ``` compiler stderr: Running command: aarch64-unknown-linux-gnu-gcc -E -dM - ../wayland-1.22.0/meson.build:1:0: ERROR: Unable to detect GNU compiler type: Compiler stdout: ----- Compiler stderr: <built-in>: internal compiler error: in real_to_decimal_for_mode, at real.cc:1899 0xe036af real_to_decimal_for_mode(char*, real_value const*, unsigned long, unsigned long, int, machine_mode) /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/real.cc:1899 0x80cdeb builtin_define_with_hex_fp_value /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/c-family/c-cppbuiltin.cc:1877 0x80e8bf builtin_define_float_constants /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/c-family/c-cppbuiltin.cc:277 0x810103 c_cpp_builtins(cpp_reader*) /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/c-family/c-cppbuiltin.cc:1245 0x82f853 c_finish_options /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/c-family/c-opts.cc:1489 0x831fb3 c_common_init() /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/c-family/c-opts.cc:1226 0x708243 lang_dependent_init /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/toplev.cc:1820 0x708243 do_compile /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/toplev.cc:2115 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://bugs.gentoo.org/> for instructions. ----- ``` ``` # echo hi | aarch64-unknown-linux-gnu-gcc -E -dM - <built-in>: internal compiler error: in real_to_decimal_for_mode, at real.cc:1899 0xe036af real_to_decimal_for_mode(char*, real_value const*, unsigned long, unsigned long, int, machine_mode) /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/real.cc:1899 0x80cdeb builtin_define_with_hex_fp_value /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/c-family/c-cppbuiltin.cc:1877 0x80e8bf builtin_define_float_constants /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/c-family/c-cppbuiltin.cc:277 0x810103 c_cpp_builtins(cpp_reader*) /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/c-family/c-cppbuiltin.cc:1245 0x82f853 c_finish_options /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/c-family/c-opts.cc:1489 0x831fb3 c_common_init() /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/c-family/c-opts.cc:1226 0x708243 lang_dependent_init /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/toplev.cc:1820 0x708243 do_compile /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/toplev.cc:2115 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://bugs.gentoo.org/> for instructions. ``` ``` gcc (Gentoo 14.0.0.9999 p, commit ab60d0a28615153ee13cbf1401bdcdf2382ae0c4) 14.0.0 20230507 (experimental) 681ba2f7681f295a102cd63ffd5ce2b86a5f706e Copyright (C) 2023 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ```