[r16-7423 Regression] FAIL: gcc.dg/analyzer/null-deref-pr123981-1.c (test for excess errors) on Linux/x86_64

Haochen Jiang via Gcc-regression <[email protected]>
Newsgroups gmane.comp.gcc.regression,gmane.comp.gcc.patches
Message-ID <[email protected]>
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.)
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