On Linux/x86_64,
c77d79785d32b30502c8bcd6aa53b63d715bb124 is the first bad commit
commit c77d79785d32b30502c8bcd6aa53b63d715bb124
Author: David Faust <david.fa...@oracle.com>
Date: Wed Aug 6 09:24:40 2025 -0700
ctf: avoid overflow for array num elements [PR121411]
caused
FAIL: gcc.dg/debug/ctf/ctf-array-7.c (test for excess errors)
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r16-3379/usr
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl
--enable-libmpx x86_64-linux --disable-bootstrap
To reproduce:
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="ctf.exp=gcc.dg/debug/ctf/ctf-array-7.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="ctf.exp=gcc.dg/debug/ctf/ctf-array-7.c --target_board='unix{-m32\
-march=cascadelake}'"
(Please directly reply to this email for question about this report.)
(If you met problems with cascadelake related, disabling AVX512F in command
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)
