Good evening,
The two declarations mentioned below are not used.
This patch removes them from the code.
* current_succs was introduced in e855c69, and
it is not used since then. Perhaps a previous
working version of the code used it and was
refactored away. One may note that there is
only one commit for 'git log -S current_succs',
and that it was featured on Jan's "Unused Vars"
e-mail from the year after it was added:
https://gcc.gnu.org/legacy-ml/gcc/2010-05/msg00688.html
If I might speculate, the comment suggests it was
supposed to hold the value of compute_succs_info,
but in the productive code, the value is simply
returned.
* ggc_force_collect is an old variable, which
was made into a parameter of ggc_collect in
0edf2e81. An 'extern' declaration for it was
later added in 1eee94d, when merging the gm2
front-end into this repository.
Bootstrapped successfully on my machine.
gcc/m2/ChangeLog:
* plugin/m2rte.cc: Removed unused extern bool
ggc_force_collect.
gcc/ChangeLog:
* sel-sched-ir.cc (struct succs_info): Removed
unused variable current_succs.
Signed-off-by: Léo Hardt <[email protected]>
---
gcc/m2/plugin/m2rte.cc | 1 -
gcc/sel-sched-ir.cc | 3 ---
2 files changed, 4 deletions(-)
diff --git a/gcc/m2/plugin/m2rte.cc b/gcc/m2/plugin/m2rte.cc
index 96659b9ae0c..c003487182d 100644
--- a/gcc/m2/plugin/m2rte.cc
+++ b/gcc/m2/plugin/m2rte.cc
@@ -41,7 +41,6 @@ along with GNU Modula-2; see the file COPYING3. If not see
#include "context.h"
#include "rtegraph.h"
-extern bool ggc_force_collect;
extern void ggc_collect (void);
#undef DEBUG_BASICBLOCK
diff --git a/gcc/sel-sched-ir.cc b/gcc/sel-sched-ir.cc
index 48651a81bba..75713501b65 100644
--- a/gcc/sel-sched-ir.cc
+++ b/gcc/sel-sched-ir.cc
@@ -53,9 +53,6 @@ vec<sel_region_bb_info_def> sel_region_bb_info;
/* A pool for allocating all lists. */
object_allocator<_list_node> sched_lists_pool ("sel-sched-lists");
-/* This contains information about successors for compute_av_set. */
-struct succs_info current_succs;
-
/* Data structure to describe interaction with the generic scheduler utils.
*/
static struct common_sched_info_def sel_common_sched_info;
--
2.39.5
