On Linux/x86_64,
3f206c5cfc5581b700ddefbadde473bc6da5e849 is the first bad commit
commit 3f206c5cfc5581b700ddefbadde473bc6da5e849
Author: Federico Angelilli <[email protected]>
Date: Mon Feb 9 18:41:22 2026 -0500
Suppress -Wanalyzer-{possible}-null-deref in some address spaces [PR123981]
caused
FAIL: gcc.dg/analyzer/null-deref-pr123981-1.c (test for excess errors)
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r16-7423/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="analyzer.exp=gcc.dg/analyzer/null-deref-pr123981-1.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="analyzer.exp=gcc.dg/analyzer/null-deref-pr123981-1.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.)
