https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114762
Bug ID: 114762
Summary: wrong code with _BitInt() division by "BITINT_NN_MIN"
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: libgcc
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 57980
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57980&action=edit
reduced testcase
Output:
$ x86_64-pc-linux-gnu-gcc testcase.c
$ ./a.out
Floating point exception
Program received signal SIGFPE, Arithmetic exception.
0x0000000000401dc1 in __divmodbitint4 (q=0x7fffffffd7a0, qprec=<optimized out>,
r=0x0, rprec=<optimized out>,
u=<optimized out>, uprec=64, v=0x7fffffffd780, vprec=<optimized out>) at
/repo/gcc-trunk/libgcc/libgcc2.c:1866
1866 vv = 1 / vv; /* Divide intentionally by zero. */
$ 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-r14-9960-20240415001639-gfe99ab1f5e9-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/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 --enable-libsanitizer
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-9960-20240415001639-gfe99ab1f5e9-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240415 (experimental) (GCC)
