https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111520
Bug ID: 111520
Summary: [14 Regression] ICE: verify_flow_info failed (error:
probability of edge 3->8 not initialized) with -O
-fsignaling-nans -fharden-compares
-fnon-call-exceptions
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: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Created attachment 55960
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55960&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O -fsignaling-nans -fharden-compares
-fnon-call-exceptions testcase.C
testcase.C: In function 'void foo()':
testcase.C:10:1: error: probability of edge 3->8 not initialized
10 | foo ()
| ^~~
during GIMPLE pass: hardcmp
testcase.C:10:1: internal compiler error: verify_flow_info failed
0x124a81e verify_flow_info()
/repo/gcc-trunk/gcc/cfghooks.cc:287
0x17ebd0c checking_verify_flow_info()
/repo/gcc-trunk/gcc/cfghooks.h:214
0x17ebd0c cleanup_tree_cfg_noloop
/repo/gcc-trunk/gcc/tree-cfgcleanup.cc:1154
0x17ebd0c cleanup_tree_cfg(unsigned int)
/repo/gcc-trunk/gcc/tree-cfgcleanup.cc:1205
0x1664e6c execute_function_todo
/repo/gcc-trunk/gcc/passes.cc:2057
0x166531e execute_todo
/repo/gcc-trunk/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.
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-4208-20230921111504-g7439f40dc17-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu
--with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-4208-20230921111504-g7439f40dc17-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.0 20230921 (experimental) (GCC)
