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charset="us-ascii" Content-Transfer-Encoding: quoted-printable On Linux/x86_64, b88adba751da635c6f0c353c5bc51bbe2ecf4c89 is the first bad commit commit b88adba751da635c6f0c353c5bc51bbe2ecf4c89 Author: Liwei Xu liwei.xu@intel.com Date: Fri Sep 23 13:46:02 2022 +0800 Optimize nested permutation to single VEC_PERM_EXPR [PR54346] caused FAIL: gcc.dg/tree-ssa/forwprop-19.c scan-tree-dump-not forwprop1 .VEC_PERM_= EXPR. with GCC configured with ../../gcc/configure --prefix=3D/export/users/haochenj/src/gcc-bisect/master= /master/r13-3212/usr --enable-clocale=3Dgnu --with-system-zlib --with-deman= gler-in-ld --with-fpmath=3Dsse --enable-languages=3Dc,c++,fortran --enable-= cet --without-isl --enable-libmpx x86_64-linux --disable-bootstrap To reproduce: $ cd {build_dir}/gcc && make check RUNTESTFLAGS=3D"tree-ssa.exp=3Dgcc.dg/tr= ee-ssa/forwprop-19.c --target_board=3D'unix{-m32}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS=3D"tree-ssa.exp=3Dgcc.dg/tr= ee-ssa/forwprop-19.c --target_board=3D'unix{-m32\ -march=3Dcascadelake}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS=3D"tree-ssa.exp=3Dgcc.dg/tr= ee-ssa/forwprop-19.c --target_board=3D'unix{-m64}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS=3D"tree-ssa.exp=3Dgcc.dg/tr= ee-ssa/forwprop-19.c --target_board=3D'unix{-m64\ -march=3Dcascadelake}'" --_000_SA1PR11MB5946C617D4D96F24A3EEEC97EC299SA1PR11MB5946namp_--