* dbgcnt.def (cfg_cleanup, cprop1, cprop2, dce_fast, dce_ud, dse1,

        dse2, gcse, if_conversion, if_after_combine, if_after_reload,
        jump_bypass): New counters.
        * cfgcleanup.c (cleanup_cfg): Add dbg_cnt.
        * dce.c (gate_ud_dce): Same.
        (gate_fast_dce): Same.
        * dse.c (gate_dse1): New function.
        (gate_dse2): New function.
        (gate_dse): Merge results of new gate functions.
        * gcse.c (gcse_main): Bracket cprop1 and cprop2 with dbg_cnt.
        (gate_handle_jump_bypass): Add dbg_cnt.
        (gate_handle_gcse): Add dbg_cnt.
        * ifcvt.c (gate_handle_if_conversion): Same.
        (gate_handle_if_after_combine): Same.
        (gate_handle_if_after_reload): Same.
        * Makefile.in: Add DBGCNT_H to cfgcleanup.o and ifcvt.o.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@132684 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 0 deletions

diff --git a/gcc/cfgcleanup.c b/gcc/cfgcleanup.c
index 3ec7d3f3781..f030eabca62 100644
--- a/gcc/cfgcleanup.c
+++ b/gcc/cfgcleanup.c
@@ -55,6 +55,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "expr.h"
 #include "df.h"
 #include "dce.h"
+#include "dbgcnt.h"
 
 #define FORWARDER_BLOCK_P(BB) ((BB)->flags & BB_FORWARDER_BLOCK)
 
@@ -2250,6 +2251,9 @@ cleanup_cfg (int mode)
   if (mode & CLEANUP_CROSSJUMP)
     add_noreturn_fake_exit_edges ();
 
+  if (!dbg_cnt (cfg_cleanup))
+    return changed;
+
   while (try_optimize_cfg (mode))
     {
       delete_unreachable_blocks (), changed = true;