diff options
Diffstat (limited to 'gcc/tree-vect-stmts.c')
| -rw-r--r-- | gcc/tree-vect-stmts.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index 8133149..51088cb 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -6126,8 +6126,10 @@ ensure_base_align (dr_vec_info *dr_info) { tree base_decl = dr_info->base_decl; - unsigned int align_base_to - = DR_TARGET_ALIGNMENT (dr_info) * BITS_PER_UNIT; + // We should only be able to increase the alignment of a base object if + // we know what its new alignment should be at compile time. + unsigned HOST_WIDE_INT align_base_to = + DR_TARGET_ALIGNMENT (dr_info).to_constant () * BITS_PER_UNIT; if (decl_in_symtab_p (base_decl)) symtab_node::get (base_decl)->increase_alignment (align_base_to); @@ -7075,7 +7077,8 @@ vectorizable_store (stmt_vec_info stmt_info, gimple_stmt_iterator *gsi, stmt_vec_info next_stmt_info = first_stmt_info; for (i = 0; i < vec_num; i++) { - unsigned align, misalign; + unsigned misalign; + unsigned HOST_WIDE_INT align; tree final_mask = NULL_TREE; if (loop_masks) @@ -7116,7 +7119,7 @@ vectorizable_store (stmt_vec_info stmt_info, gimple_stmt_iterator *gsi, vect_permute_store_chain(). */ vec_oprnd = result_chain[i]; - align = DR_TARGET_ALIGNMENT (first_dr_info); + align = known_alignment (DR_TARGET_ALIGNMENT (first_dr_info)); if (aligned_access_p (first_dr_info)) misalign = 0; else if (DR_MISALIGNMENT (first_dr_info) == -1) @@ -8304,7 +8307,8 @@ vectorizable_load (stmt_vec_info stmt_info, gimple_stmt_iterator *gsi, case dr_aligned: case dr_unaligned_supported: { - unsigned int align, misalign; + unsigned int misalign; + unsigned HOST_WIDE_INT align; if (memory_access_type == VMAT_GATHER_SCATTER) { @@ -8324,7 +8328,8 @@ vectorizable_load (stmt_vec_info stmt_info, gimple_stmt_iterator *gsi, break; } - align = DR_TARGET_ALIGNMENT (dr_info); + align = + known_alignment (DR_TARGET_ALIGNMENT (first_dr_info)); if (alignment_support_scheme == dr_aligned) { gcc_assert (aligned_access_p (first_dr_info)); @@ -8391,7 +8396,10 @@ vectorizable_load (stmt_vec_info stmt_info, gimple_stmt_iterator *gsi, ptr = copy_ssa_name (dataref_ptr); else ptr = make_ssa_name (TREE_TYPE (dataref_ptr)); - unsigned int align = DR_TARGET_ALIGNMENT (first_dr_info); + // For explicit realign the target alignment should be + // known at compile time. + unsigned HOST_WIDE_INT align = + DR_TARGET_ALIGNMENT (first_dr_info).to_constant (); new_stmt = gimple_build_assign (ptr, BIT_AND_EXPR, dataref_ptr, build_int_cst @@ -8435,7 +8443,10 @@ vectorizable_load (stmt_vec_info stmt_info, gimple_stmt_iterator *gsi, new_temp = copy_ssa_name (dataref_ptr); else new_temp = make_ssa_name (TREE_TYPE (dataref_ptr)); - unsigned int align = DR_TARGET_ALIGNMENT (first_dr_info); + // We should only be doing this if we know the target + // alignment at compile time. + unsigned HOST_WIDE_INT align = + DR_TARGET_ALIGNMENT (first_dr_info).to_constant (); new_stmt = gimple_build_assign (new_temp, BIT_AND_EXPR, dataref_ptr, build_int_cst (TREE_TYPE (dataref_ptr), |