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)
