https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112673
Bug ID: 112673 Summary: [14 Regression] ICE verify_gimple failed since r14-5557-g6dd4c703be17fa Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: mjires at suse dot cz CC: jakub at redhat dot com Target Milestone: --- Compiling pr112566-2.c from testsuite. Bisection points to r14-5557-g6dd4c703be17fa, which also introduced this test. $ gcc pr112566-2.c -Ofast -mf16c pr112566-2.c: In function ‘corge’: pr112566-2.c:10:5: error: ‘bit_field_ref’ of non-mode-precision operand 10 | int corge (_BitInt(256) x) { return __builtin_ctzg ((unsigned _BitInt(512)) x); } | ^~~~~ _18 = BIT_FIELD_REF <x_35(D), 64, 64>; pr112566-2.c:10:5: error: ‘bit_field_ref’ of non-mode-precision operand _1 = BIT_FIELD_REF <x_35(D), 64, 128>; pr112566-2.c:10:5: error: ‘bit_field_ref’ of non-mode-precision operand _38 = BIT_FIELD_REF <x_35(D), 64, 192>; during GIMPLE pass: forwprop pr112566-2.c:10:5: internal compiler error: verify_gimple failed 0x105854d verify_gimple_in_cfg(function*, bool, bool) /home/mjires/git/GCC/master/gcc/tree-cfg.cc:5662 0xee86b4 execute_function_todo /home/mjires/git/GCC/master/gcc/passes.cc:2088 0xee8c0e execute_todo /home/mjires/git/GCC/master/gcc/passes.cc:2142 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. $ gcc -v Using built-in specs. COLLECT_GCC=/home/mjires/built/master/bin/gcc COLLECT_LTO_WRAPPER=/home/mjires/built/master/libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /home/mjires/git/GCC/master/configure --prefix=/home/mjires/built/master --disable-bootstrap --enable-checking --enable-languages=c,c++,fortran,lto Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.0 20231122 (experimental) (GCC)