diff --git a/gcc/passes.def b/gcc/passes.def index 993ed28..a841183 100644 --- a/gcc/passes.def +++ b/gcc/passes.def @@ -138,12 +138,12 @@ along with GCC; see the file COPYING3. If not see PUSH_INSERT_PASSES_WITHIN (pass_ipa_tree_profile) NEXT_PASS (pass_feedback_split_functions); POP_INSERT_PASSES () - NEXT_PASS (pass_ipa_increase_alignment); NEXT_PASS (pass_ipa_tm); NEXT_PASS (pass_ipa_lower_emutls); TERMINATE_PASS_LIST (all_small_ipa_passes) INSERT_PASSES_AFTER (all_regular_ipa_passes) + NEXT_PASS (pass_ipa_increase_alignment); NEXT_PASS (pass_ipa_whole_program_visibility); NEXT_PASS (pass_ipa_profile); NEXT_PASS (pass_ipa_icf); diff --git a/gcc/testsuite/gcc.dg/vect/section-anchors-vect-73.c b/gcc/testsuite/gcc.dg/vect/section-anchors-vect-73.c new file mode 100644 index 0000000..74eaed8 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/section-anchors-vect-73.c @@ -0,0 +1,25 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target section_anchors } */ +/* { dg-require-effective-target vect_int } */ + +#define N 32 + +/* Clone of section-anchors-vect-70.c with foo() having -fno-tree-loop-vectorize. */ + +static struct A { + int p1, p2; + int e[N]; +} a, b, c; + +__attribute__((optimize("-fno-tree-loop-vectorize"))) +int foo(void) +{ + for (int i = 0; i < N; i++) + a.e[i] = b.e[i] + c.e[i]; + + return a.e[0]; +} + +/* { dg-final { scan-ipa-dump-times "Increasing alignment of decl" 0 "increase_alignment" { target aarch64*-*-* } } } */ +/* { dg-final { scan-ipa-dump-times "Increasing alignment of decl" 0 "increase_alignment" { target powerpc64*-*-* } } } */ +/* { dg-final { scan-ipa-dump-times "Increasing alignment of decl" 0 "increase_alignment" { target arm*-*-* } } } */ diff --git a/gcc/tree-pass.h b/gcc/tree-pass.h index 66e103a..2d2e8fc 100644 --- a/gcc/tree-pass.h +++ b/gcc/tree-pass.h @@ -482,7 +482,7 @@ extern simple_ipa_opt_pass *make_pass_local_optimization_passes (gcc::context *c extern ipa_opt_pass_d *make_pass_ipa_whole_program_visibility (gcc::context *ctxt); -extern simple_ipa_opt_pass *make_pass_ipa_increase_alignment (gcc::context +extern ipa_opt_pass_d *make_pass_ipa_increase_alignment (gcc::context *ctxt); extern ipa_opt_pass_d *make_pass_ipa_inline (gcc::context *ctxt); extern simple_ipa_opt_pass *make_pass_ipa_free_lang_data (gcc::context *ctxt); diff --git a/gcc/tree-vectorizer.c b/gcc/tree-vectorizer.c index 2669813..12ef019 100644 --- a/gcc/tree-vectorizer.c +++ b/gcc/tree-vectorizer.c @@ -899,6 +899,34 @@ get_vec_alignment_for_type (tree type) return (alignment > TYPE_ALIGN (type)) ? alignment : 0; } +/* Return true if alignment should be increased for this vnode. + This is done if every function that references/referring to vnode + has flag_tree_loop_vectorize and flag_section_anchors set. */ + +static bool +increase_alignment_p (varpool_node *vnode) +{ + ipa_ref *ref; + + for (int i = 0; vnode->iterate_reference (i, ref); i++) + if (cgraph_node *cnode = dyn_cast (ref->referred)) + { + struct cl_optimization *opts = opts_for_fn (cnode->decl); + if (! (opts->x_flag_tree_vectorize && opts->x_flag_section_anchors)) + return false; + } + + for (int i = 0; vnode->iterate_referring (i, ref); i++) + if (cgraph_node *cnode = dyn_cast (ref->referring)) + { + struct cl_optimization *opts = opts_for_fn (cnode->decl); + if (! (opts->x_flag_tree_loop_vectorize && opts->x_flag_section_anchors)) + return false; + } + + return true; +} + /* Entry point to increase_alignment pass. */ static unsigned int increase_alignment (void) @@ -916,7 +944,8 @@ increase_alignment (void) if ((decl_in_symtab_p (decl) && !symtab_node::get (decl)->can_increase_alignment_p ()) - || DECL_USER_ALIGN (decl) || DECL_ARTIFICIAL (decl)) + || DECL_USER_ALIGN (decl) || DECL_ARTIFICIAL (decl) + || !increase_alignment_p (vnode)) continue; alignment = get_vec_alignment_for_type (TREE_TYPE (decl)); @@ -938,7 +967,7 @@ namespace { const pass_data pass_data_ipa_increase_alignment = { - SIMPLE_IPA_PASS, /* type */ + IPA_PASS, /* type */ "increase_alignment", /* name */ OPTGROUP_LOOP | OPTGROUP_VEC, /* optinfo_flags */ TV_IPA_OPT, /* tv_id */ @@ -949,11 +978,20 @@ const pass_data pass_data_ipa_increase_alignment = 0, /* todo_flags_finish */ }; -class pass_ipa_increase_alignment : public simple_ipa_opt_pass +class pass_ipa_increase_alignment : public ipa_opt_pass_d { public: pass_ipa_increase_alignment (gcc::context *ctxt) - : simple_ipa_opt_pass (pass_data_ipa_increase_alignment, ctxt) + : ipa_opt_pass_d (pass_data_ipa_increase_alignment, ctxt, + NULL, /* generate_summary */ + NULL, /* write summary */ + NULL, /* read summary */ + NULL, /* write optimization summary */ + NULL, /* read optimization summary */ + NULL, /* stmt fixup */ + 0, /* function_transform_todo_flags_start */ + NULL, /* transform function */ + NULL )/* variable transform */ {} /* opt_pass methods: */ @@ -968,7 +1006,7 @@ public: } // anon namespace -simple_ipa_opt_pass * +ipa_opt_pass_d * make_pass_ipa_increase_alignment (gcc::context *ctxt) { return new pass_ipa_increase_alignment (ctxt);