On Linux/x86_64,
498fb8a24516b10897dfbe08bb8f7574b2d28839 is the first bad commit
commit 498fb8a24516b10897dfbe08bb8f7574b2d28839
Author: David Malcolm <[email protected]>
Date: Fri Feb 6 10:54:52 2026 -0500
analyzer: use value_range and range_op in eval_condition [PR98447]
caused
FAIL: g++.dg/analyzer/fanalyzer-show-events-in-system-headers-default.C
-std=c++14 (test for excess errors)
FAIL: g++.dg/analyzer/fanalyzer-show-events-in-system-headers-default.C
-std=c++20 (test for excess errors)
FAIL: g++.dg/analyzer/fanalyzer-show-events-in-system-headers-no.C -std=c++14
(test for excess errors)
FAIL: g++.dg/analyzer/fanalyzer-show-events-in-system-headers-no.C -std=c++20
(test for excess errors)
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r16-7365/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=g++.dg/analyzer/fanalyzer-show-events-in-system-headers-default.C
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="analyzer.exp=g++.dg/analyzer/fanalyzer-show-events-in-system-headers-default.C
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="analyzer.exp=g++.dg/analyzer/fanalyzer-show-events-in-system-headers-no.C
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="analyzer.exp=g++.dg/analyzer/fanalyzer-show-events-in-system-headers-no.C
--target_board='unix{-m64\ -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.)
