From: Richard Sandiford Date: Wed, 1 Aug 2018 15:14:42 +0000 (+0000) Subject: [05/11] Add a vect_stmt_to_vectorize helper function X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6e6b18e5fbe6be62334c9007a58224fb3700d43a;p=gcc.git [05/11] Add a vect_stmt_to_vectorize helper function This patch adds a helper that does the opposite of vect_orig_stmt: go from the original scalar statement to the statement that should actually be vectorised. The use in the last two hunks of vectorizable_reduction are because reduc_stmt_info (first hunk) and stmt_info (second hunk) are already pattern statements if appropriate. 2018-08-01 Richard Sandiford gcc/ * tree-vectorizer.h (vect_stmt_to_vectorize): New function. * tree-vect-loop.c (vect_update_vf_for_slp): Use it. (vectorizable_reduction): Likewise. * tree-vect-slp.c (vect_analyze_slp_instance): Likewise. (vect_detect_hybrid_slp_stmts): Likewise. * tree-vect-stmts.c (vect_is_simple_use): Likewise. From-SVN: r263219 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a0552f8c60d..227d0457315 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2018-08-01 Richard Sandiford + + * tree-vectorizer.h (vect_stmt_to_vectorize): New function. + * tree-vect-loop.c (vect_update_vf_for_slp): Use it. + (vectorizable_reduction): Likewise. + * tree-vect-slp.c (vect_analyze_slp_instance): Likewise. + (vect_detect_hybrid_slp_stmts): Likewise. + * tree-vect-stmts.c (vect_is_simple_use): Likewise. + 2018-08-01 Aldy Hernandez * tree-vrp (zero_nonzero_bits_from_bounds): Rename to... diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index b5d1671aa6b..f4ce5b6033b 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -1424,9 +1424,7 @@ vect_update_vf_for_slp (loop_vec_info loop_vinfo) gsi_next (&si)) { stmt_vec_info stmt_info = loop_vinfo->lookup_stmt (gsi_stmt (si)); - if (STMT_VINFO_IN_PATTERN_P (stmt_info) - && STMT_VINFO_RELATED_STMT (stmt_info)) - stmt_info = STMT_VINFO_RELATED_STMT (stmt_info); + stmt_info = vect_stmt_to_vectorize (stmt_info); if ((STMT_VINFO_RELEVANT_P (stmt_info) || VECTORIZABLE_CYCLE_DEF (STMT_VINFO_DEF_TYPE (stmt_info))) && !PURE_SLP_STMT (stmt_info)) @@ -6111,8 +6109,7 @@ vectorizable_reduction (stmt_vec_info stmt_info, gimple_stmt_iterator *gsi, return true; stmt_vec_info reduc_stmt_info = STMT_VINFO_REDUC_DEF (stmt_info); - if (STMT_VINFO_IN_PATTERN_P (reduc_stmt_info)) - reduc_stmt_info = STMT_VINFO_RELATED_STMT (reduc_stmt_info); + reduc_stmt_info = vect_stmt_to_vectorize (reduc_stmt_info); if (STMT_VINFO_VEC_REDUCTION_TYPE (reduc_stmt_info) == EXTRACT_LAST_REDUCTION) @@ -6145,8 +6142,7 @@ vectorizable_reduction (stmt_vec_info stmt_info, gimple_stmt_iterator *gsi, if (ncopies > 1 && STMT_VINFO_RELEVANT (reduc_stmt_info) <= vect_used_only_live && (use_stmt_info = loop_vinfo->lookup_single_use (phi_result)) - && (use_stmt_info == reduc_stmt_info - || STMT_VINFO_RELATED_STMT (use_stmt_info) == reduc_stmt_info)) + && vect_stmt_to_vectorize (use_stmt_info) == reduc_stmt_info) single_defuse_cycle = true; /* Create the destination vector */ @@ -6915,8 +6911,7 @@ vectorizable_reduction (stmt_vec_info stmt_info, gimple_stmt_iterator *gsi, if (ncopies > 1 && (STMT_VINFO_RELEVANT (stmt_info) <= vect_used_only_live) && (use_stmt_info = loop_vinfo->lookup_single_use (reduc_phi_result)) - && (use_stmt_info == stmt_info - || STMT_VINFO_RELATED_STMT (use_stmt_info) == stmt_info)) + && vect_stmt_to_vectorize (use_stmt_info) == stmt_info) { single_defuse_cycle = true; epilog_copies = 1; diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c index f9a83dd77ba..d0f6da4a6ac 100644 --- a/gcc/tree-vect-slp.c +++ b/gcc/tree-vect-slp.c @@ -1969,11 +1969,7 @@ vect_analyze_slp_instance (vec_info *vinfo, /* Collect the stores and store them in SLP_TREE_SCALAR_STMTS. */ while (next_info) { - if (STMT_VINFO_IN_PATTERN_P (next_info) - && STMT_VINFO_RELATED_STMT (next_info)) - scalar_stmts.safe_push (STMT_VINFO_RELATED_STMT (next_info)); - else - scalar_stmts.safe_push (next_info); + scalar_stmts.safe_push (vect_stmt_to_vectorize (next_info)); next_info = DR_GROUP_NEXT_ELEMENT (next_info); } } @@ -1983,11 +1979,7 @@ vect_analyze_slp_instance (vec_info *vinfo, SLP_TREE_SCALAR_STMTS. */ while (next_info) { - if (STMT_VINFO_IN_PATTERN_P (next_info) - && STMT_VINFO_RELATED_STMT (next_info)) - scalar_stmts.safe_push (STMT_VINFO_RELATED_STMT (next_info)); - else - scalar_stmts.safe_push (next_info); + scalar_stmts.safe_push (vect_stmt_to_vectorize (next_info)); next_info = REDUC_GROUP_NEXT_ELEMENT (next_info); } /* Mark the first element of the reduction chain as reduction to properly @@ -2325,9 +2317,7 @@ vect_detect_hybrid_slp_stmts (slp_tree node, unsigned i, slp_vect_type stype) use_vinfo = loop_vinfo->lookup_stmt (use_stmt); if (!use_vinfo) continue; - if (STMT_VINFO_IN_PATTERN_P (use_vinfo) - && STMT_VINFO_RELATED_STMT (use_vinfo)) - use_vinfo = STMT_VINFO_RELATED_STMT (use_vinfo); + use_vinfo = vect_stmt_to_vectorize (use_vinfo); if (!STMT_SLP_TYPE (use_vinfo) && (STMT_VINFO_RELEVANT (use_vinfo) || VECTORIZABLE_CYCLE_DEF (STMT_VINFO_DEF_TYPE (use_vinfo))) diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index f3a2d80f98c..9d51c10bcbc 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -10031,11 +10031,8 @@ vect_is_simple_use (tree operand, vec_info *vinfo, enum vect_def_type *dt, *dt = vect_external_def; else { - if (STMT_VINFO_IN_PATTERN_P (stmt_vinfo)) - { - stmt_vinfo = STMT_VINFO_RELATED_STMT (stmt_vinfo); - def_stmt = stmt_vinfo->stmt; - } + stmt_vinfo = vect_stmt_to_vectorize (stmt_vinfo); + def_stmt = stmt_vinfo->stmt; switch (gimple_code (def_stmt)) { case GIMPLE_PHI: diff --git a/gcc/tree-vectorizer.h b/gcc/tree-vectorizer.h index a8403d5299c..5de2be9a69c 100644 --- a/gcc/tree-vectorizer.h +++ b/gcc/tree-vectorizer.h @@ -1131,6 +1131,17 @@ vect_orig_stmt (stmt_vec_info stmt_info) return stmt_info; } +/* If STMT_INFO has been replaced by a pattern statement, return the + replacement statement, otherwise return STMT_INFO itself. */ + +inline stmt_vec_info +vect_stmt_to_vectorize (stmt_vec_info stmt_info) +{ + if (STMT_VINFO_IN_PATTERN_P (stmt_info)) + return STMT_VINFO_RELATED_STMT (stmt_info); + return stmt_info; +} + /* Return true if BB is a loop header. */ static inline bool