On Linux/x86_64,
a2bd06e89526a69925157d0cbecb521fb2a360e0 is the first bad commit
commit a2bd06e89526a69925157d0cbecb521fb2a360e0
Author: David Malcolm <[email protected]>
Date: Wed May 6 09:57:07 2026 -0400
analyzer: generating raw state for rewinding data flow
caused
FAIL: gcc.dg/analyzer/divide-by-zero-6.c at line 15 (test for warnings, line
14)
FAIL: gcc.dg/analyzer/divide-by-zero-6.c (test for excess errors)
FAIL: gcc.dg/analyzer/divide-by-zero-6.c (test for warnings, line 14)
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r17-360/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/divide-by-zero-6.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="analyzer.exp=gcc.dg/analyzer/divide-by-zero-6.c
--target_board='unix{-m32\ -march=cascadelake}'"
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(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.)