https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111970
--- Comment #15 from rguenther at suse dot de <rguenther at suse dot de> --- On Mon, 20 Nov 2023, juzhe.zhong at rivai dot ai wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111970 > > --- Comment #11 from JuzheZhong <juzhe.zhong at rivai dot ai> --- > Hi, Richard. > > I come back to revisit this bug. > > I found if I do this: > > diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc > index 4a09b3c2aca..2fd128672b9 100644 > --- a/gcc/tree-vect-slp.cc > +++ b/gcc/tree-vect-slp.cc > @@ -1434,7 +1434,6 @@ vect_build_slp_tree_1 (vec_info *vinfo, unsigned char > *swap, > && rhs_code != CFN_GATHER_LOAD > && rhs_code != CFN_MASK_GATHER_LOAD > && rhs_code != CFN_MASK_LEN_GATHER_LOAD > - && !STMT_VINFO_GATHER_SCATTER_P (stmt_info) > /* Not grouped loads are handled as externals for BB > vectorization. For loop vectorization we can handle > splats the same we handle single element interleaving. */ > > > The bug is fixed. But I am not sure whether it is the correct fix. That will simply disable SLP recognition for the case in question.
