diff options
Diffstat (limited to 'gcc/tree-vect-slp.cc')
| -rw-r--r-- | gcc/tree-vect-slp.cc | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc index 19beeed..b5a9604 100644 --- a/gcc/tree-vect-slp.cc +++ b/gcc/tree-vect-slp.cc @@ -11161,9 +11161,14 @@ vect_schedule_slp_node (vec_info *vinfo, == cycle_phi_info_type); gphi *phi = as_a <gphi *> (vect_find_last_scalar_stmt_in_slp (child)->stmt); - if (!last_stmt - || vect_stmt_dominates_stmt_p (last_stmt, phi)) + if (!last_stmt) last_stmt = phi; + else if (vect_stmt_dominates_stmt_p (last_stmt, phi)) + last_stmt = phi; + else if (vect_stmt_dominates_stmt_p (phi, last_stmt)) + ; + else + gcc_unreachable (); } /* We are emitting all vectorized stmts in the same place and the last one is the last. @@ -11174,9 +11179,14 @@ vect_schedule_slp_node (vec_info *vinfo, FOR_EACH_VEC_ELT (SLP_TREE_VEC_DEFS (child), j, vdef) { gimple *vstmt = SSA_NAME_DEF_STMT (vdef); - if (!last_stmt - || vect_stmt_dominates_stmt_p (last_stmt, vstmt)) + if (!last_stmt) + last_stmt = vstmt; + else if (vect_stmt_dominates_stmt_p (last_stmt, vstmt)) last_stmt = vstmt; + else if (vect_stmt_dominates_stmt_p (vstmt, last_stmt)) + ; + else + gcc_unreachable (); } } else if (!SLP_TREE_VECTYPE (child)) @@ -11189,9 +11199,14 @@ vect_schedule_slp_node (vec_info *vinfo, && !SSA_NAME_IS_DEFAULT_DEF (def)) { gimple *stmt = SSA_NAME_DEF_STMT (def); - if (!last_stmt - || vect_stmt_dominates_stmt_p (last_stmt, stmt)) + if (!last_stmt) + last_stmt = stmt; + else if (vect_stmt_dominates_stmt_p (last_stmt, stmt)) last_stmt = stmt; + else if (vect_stmt_dominates_stmt_p (stmt, last_stmt)) + ; + else + gcc_unreachable (); } } else @@ -11212,9 +11227,14 @@ vect_schedule_slp_node (vec_info *vinfo, && !SSA_NAME_IS_DEFAULT_DEF (vdef)) { gimple *vstmt = SSA_NAME_DEF_STMT (vdef); - if (!last_stmt - || vect_stmt_dominates_stmt_p (last_stmt, vstmt)) + if (!last_stmt) + last_stmt = vstmt; + else if (vect_stmt_dominates_stmt_p (last_stmt, vstmt)) last_stmt = vstmt; + else if (vect_stmt_dominates_stmt_p (vstmt, last_stmt)) + ; + else + gcc_unreachable (); } } } |