[PATCH v3 6/8] sched_deps.cc: Simplify initialization of dependency contexts

[Maxim Kuvyrkov]

gcc/ChangeLog:

        * sched-deps.cc (init_deps, init_deps_reg_last): Simplify.
        (free_deps): Remove useless code.
---
 gcc/sched-deps.cc | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/gcc/sched-deps.cc b/gcc/sched-deps.cc
index 2a87158ba4b..e0d3c97d935 100644
--- a/gcc/sched-deps.cc
+++ b/gcc/sched-deps.cc
@@ -3927,10 +3927,9 @@ init_deps (class deps_desc *deps, bool lazy_reg_last)
   int max_reg = (reload_completed ? FIRST_PSEUDO_REGISTER : max_reg_num ());
 
   deps->max_reg = max_reg;
-  if (lazy_reg_last)
-    deps->reg_last = NULL;
-  else
-    deps->reg_last = XCNEWVEC (struct deps_reg, max_reg);
+  deps->reg_last = NULL;
+  if (!lazy_reg_last)
+    init_deps_reg_last (deps);
   INIT_REG_SET (&deps->reg_last_in_use);
 
   deps->pending_read_insns = 0;
@@ -3961,9 +3960,7 @@ init_deps (class deps_desc *deps, bool lazy_reg_last)
 void
 init_deps_reg_last (class deps_desc *deps)
 {
-  gcc_assert (deps && deps->max_reg > 0);
-  gcc_assert (deps->reg_last == NULL);
-
+  gcc_assert (deps && deps->max_reg > 0 && deps->reg_last == NULL);
   deps->reg_last = XCNEWVEC (struct deps_reg, deps->max_reg);
 }
 
@@ -4013,8 +4010,6 @@ free_deps (class deps_desc *deps)
      it at all.  */
   free (deps->reg_last);
   deps->reg_last = NULL;
-
-  deps = NULL;
 }
 
 /* Remove INSN from dependence contexts DEPS.  */
-- 
2.34.1