https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116814
Bug ID: 116814
Summary: [15 Regression] ICE on libjack2-1.9.22: in
expand_fn_using_insn, at internal-fn.cc:263
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: slyfox at gcc dot gnu.org
Target Milestone: ---
Initially observed ICE on libjack2-1.9.22 on gcc-master at
r15-3784-g4fc92480675bd0.
cvise reduced it down to the following:
$ cat JackMidiAsyncWaitQueue.cpp.cpp
unsigned long long GetTimeFromFrames(int);
unsigned long long GetMicroSeconds();
void DequeueEvent(unsigned frame) {
long long frame_time = GetTimeFromFrames(frame);
unsigned long long current_time = GetMicroSeconds();
DequeueEvent(frame_time < current_time ? 0 : frame_time - current_time);
}
gcc/xg++ -Bgcc -O2 -fPIC -c JackMidiAsyncWaitQueue.cpp.cpp -m32
during RTL pass: expand
JackMidiAsyncWaitQueue.cpp.cpp: In function 'void DequeueEvent(unsigned int)':
JackMidiAsyncWaitQueue.cpp.cpp:3:6: internal compiler error: in
expand_fn_using_insn, at internal-fn.cc:263
3 | void DequeueEvent(unsigned frame) {
| ^~~~~~~~~~~~
0x27b580d diagnostic_context::diagnostic_impl(rich_location*,
diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag
(*) [1], diagnostic_t)
???:0
0x27c4a3f internal_error(char const*, ...)
???:0
0x27b3994 fancy_abort(char const*, int, char const*)
???:0
0xf25ae5 expand_fn_using_insn(gcall*, insn_code, unsigned int, unsigned int)
???:0
0xf2a124 expand_direct_optab_fn(internal_fn, gcall*, optab_tag, unsigned int)
???:0
0xf2c87c expand_SAT_SUB(internal_fn, gcall*)
???:0
0xf3079d expand_internal_call(internal_fn, gcall*)
???:0
0xf307b7 expand_internal_call(gcall*)
???:0
0xc8f160 expand_gimple_stmt(gimple*)
???:0
0xc95099 expand_gimple_basic_block(basic_block_def*, bool)
???:0
0xc971b2 (anonymous namespace)::pass_expand::execute(function*)
???:0
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/xg++ -Bgcc -v
Reading specs from gcc/specs
COLLECT_GCC=gcc/xg++
COLLECT_LTO_WRAPPER=gcc/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /home/slyfox/dev/git/gcc/configure --disable-multilib
--disable-bootstrap --disable-lto --disable-libsanitizer
--disable-libstdcxx-pch --enable-languages=c,c++ --disable-libgomp
--disable-libquadmath --disable-libvtv CFLAGS='-O1 -g0' CXXFLAGS='-O1 -g0'
LDFLAGS='-O1 -g0'
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 15.0.0 20240923 (experimental) (GCC)
