[haifa-sched] model load/store multiples properly in autoprefetcher scheduling

	* sched-int.h (struct autopref_multipass_data_): Remove offset
	field.  Add min_offset, max_offset, multi_mem_insn_p fields.
	* haifa-sched.c (analyze_set_insn_for_autopref): New function.
	(autopref_multipass_init): Use it.  Handle PARALLEL sets.
	(autopref_rank_data): New function.
	(autopref_rank_for_schedule): Use it.
	(autopref_multipass_dfa_lookahead_guard_1): Likewise.

From-SVN: r228962

1 files changed, 11 insertions, 2 deletions

diff --git a/gcc/sched-int.h b/gcc/sched-int.h
index 800262c4a4a..86f582105f8 100644
--- a/gcc/sched-int.h
+++ b/gcc/sched-int.h
@@ -807,8 +807,17 @@ struct autopref_multipass_data_
 {
   /* Base part of memory address.  */
   rtx base;
-  /* Memory offset.  */
-  int offset;
+
+  /* Memory offsets from the base.  For single simple sets
+     only min_offset is valid.  For multi-set insns min_offset
+     and max_offset record the minimum and maximum offsets from the same
+     base among the sets inside the PARALLEL.  */
+  int min_offset;
+  int max_offset;
+
+  /* True if this is a load/store-multiple instruction.  */
+  bool multi_mem_insn_p;
+
   /* Entry status.  */
   enum autopref_multipass_data_status status;
 };