[RA]: Add flag for checking IRA in progress

RISCV target developers need a flag to prevent creating
insns in IRA which can not be split after RA as they will need a
temporary reg.  The patch introduces such flag.

gcc/ChangeLog:

	* rtl.h (lra_in_progress): Change type to bool.
	(ira_in_progress): Add new extern.
	* ira.cc (ira_in_progress): New global.
	(pass_ira::execute): Set up ira_in_progress.
	* lra.cc: (lra_in_progress): Change type to bool and initialize.
	(lra): Use bool values for lra_in_progress.
	* lra-eliminations.cc (init_elim_table): Ditto.

1 files changed, 4 insertions, 4 deletions

diff --git a/gcc/lra.cc b/gcc/lra.cc
index 361f84f..bcc00ff 100644
--- a/gcc/lra.cc
+++ b/gcc/lra.cc
@@ -2262,8 +2262,8 @@ update_inc_notes (void)
       }
 }
 
-/* Set to 1 while in lra.  */
-int lra_in_progress;
+/* Set to true while in LRA.  */
+bool lra_in_progress = false;
 
 /* Start of pseudo regnos before the LRA.  */
 int lra_new_regno_start;
@@ -2360,7 +2360,7 @@ lra (FILE *f)
   if (flag_checking)
     check_rtl (false);
 
-  lra_in_progress = 1;
+  lra_in_progress = true;
 
   lra_live_range_iter = lra_coalesce_iter = lra_constraint_iter = 0;
   lra_assignment_iter = lra_assignment_iter_after_spill = 0;
@@ -2552,7 +2552,7 @@ lra (FILE *f)
   ira_restore_scratches (lra_dump_file);
   lra_eliminate (true, false);
   lra_final_code_change ();
-  lra_in_progress = 0;
+  lra_in_progress = false;
   if (live_p)
     lra_clear_live_ranges ();
   lra_live_ranges_finish ();