Correct a function pre/postcondition [PR102403].

[thirdparty/gcc.git] / gcc / lra.c

diff --git a/gcc/lra.c b/gcc/lra.c
index 380a21ac2ac9ca71a8dffa11baec86469f7dfe6f..5a4b6638913f1112e538fd3417cc6c6b7d9e2958 100644 (file)
--- a/gcc/lra.c
+++ b/gcc/lra.c
@@ -2192,6 +2192,9 @@ int lra_constraint_new_regno_start;
    it is possible.  */
 int lra_bad_spill_regno_start;
 
+/* A pseudo of Pmode.  */
+rtx lra_pmode_pseudo;
+
 /* Inheritance pseudo regnos before the new spill pass.         */
 bitmap_head lra_inheritance_pseudos;
 
@@ -2211,6 +2214,9 @@ bitmap_head lra_subreg_reload_pseudos;
 /* File used for output of LRA debug information.  */
 FILE *lra_dump_file;
 
+/* True if we split hard reg after the last constraint sub-pass.  */
+bool lra_hard_reg_split_p;
+
 /* True if we found an asm error.  */
 bool lra_asm_error_p;
 
@@ -2252,6 +2258,7 @@ lra (FILE *f)
 
   lra_dump_file = f;
   lra_asm_error_p = false;
+  lra_pmode_pseudo = gen_reg_rtx (Pmode);
   
   timevar_push (TV_LRA);
 
@@ -2359,6 +2366,7 @@ lra (FILE *f)
          if (live_p)
            lra_clear_live_ranges ();
          bool fails_p;
+         lra_hard_reg_split_p = false;
          do
            {
              /* We need live ranges for lra_assign -- so build them.
@@ -2403,6 +2411,7 @@ lra (FILE *f)
                  live_p = false;
                  if (! lra_split_hard_reg_for ())
                    break;
+                 lra_hard_reg_split_p = true;
                }
            }
          while (fails_p);