PR target/36684

[pf3gnuchains/gcc-fork.git] / gcc / emit-rtl.c

diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index 899679c..22c7979 100644 (file)
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -3044,9 +3044,8 @@ link_cc0_insns (rtx insn)
   if (NONJUMP_INSN_P (user) && GET_CODE (PATTERN (user)) == SEQUENCE)
     user = XVECEXP (PATTERN (user), 0, 0);
 
-  REG_NOTES (user) = gen_rtx_INSN_LIST (REG_CC_SETTER, insn,
-                                       REG_NOTES (user));
-  REG_NOTES (insn) = gen_rtx_INSN_LIST (REG_CC_USER, user, REG_NOTES (insn));
+  add_reg_note (user, REG_CC_SETTER, insn);
+  add_reg_note (insn, REG_CC_USER, user);
 }
 
 /* Return the next insn that uses CC0 after INSN, which is assumed to
@@ -3101,7 +3100,7 @@ static int
 find_auto_inc (rtx *xp, void *data)
 {
   rtx x = *xp;
-  rtx reg = data;
+  rtx reg = (rtx) data;
 
   if (GET_RTX_CLASS (GET_CODE (x)) != RTX_AUTOINC)
     return 0;
@@ -3223,10 +3222,7 @@ try_split (rtx pat, rtx trial, int last)
                 is responsible for this step using
                 split_branch_probability variable.  */
              gcc_assert (njumps == 1);
-             REG_NOTES (insn)
-               = gen_rtx_EXPR_LIST (REG_BR_PROB,
-                                    GEN_INT (probability),
-                                    REG_NOTES (insn));
+             add_reg_note (insn, REG_BR_PROB, GEN_INT (probability));
            }
        }
     }
@@ -3257,10 +3253,7 @@ try_split (rtx pat, rtx trial, int last)
              if (CALL_P (insn)
                  || (flag_non_call_exceptions && INSN_P (insn)
                      && may_trap_p (PATTERN (insn))))
-               REG_NOTES (insn)
-                 = gen_rtx_EXPR_LIST (REG_EH_REGION,
-                                      XEXP (note, 0),
-                                      REG_NOTES (insn));
+               add_reg_note (insn, REG_EH_REGION, XEXP (note, 0));
            }
          break;
 
@@ -3269,10 +3262,7 @@ try_split (rtx pat, rtx trial, int last)
          for (insn = insn_last; insn != NULL_RTX; insn = PREV_INSN (insn))
            {
              if (CALL_P (insn))
-               REG_NOTES (insn)
-                 = gen_rtx_EXPR_LIST (REG_NOTE_KIND (note),
-                                      XEXP (note, 0),
-                                      REG_NOTES (insn));
+               add_reg_note (insn, REG_NOTE_KIND (note), XEXP (note, 0));
            }
          break;
 
@@ -3280,10 +3270,7 @@ try_split (rtx pat, rtx trial, int last)
          for (insn = insn_last; insn != NULL_RTX; insn = PREV_INSN (insn))
            {
              if (JUMP_P (insn))
-               REG_NOTES (insn)
-                 = gen_rtx_EXPR_LIST (REG_NOTE_KIND (note),
-                                      XEXP (note, 0),
-                                      REG_NOTES (insn));
+               add_reg_note (insn, REG_NOTE_KIND (note), XEXP (note, 0));
            }
          break;
 
@@ -3294,8 +3281,7 @@ try_split (rtx pat, rtx trial, int last)
              rtx reg = XEXP (note, 0);
              if (!FIND_REG_INC_NOTE (insn, reg)
                  && for_each_rtx (&PATTERN (insn), find_auto_inc, reg) > 0)
-               REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_INC, reg,
-                                                     REG_NOTES (insn));
+               add_reg_note (insn, REG_INC, reg);
            }
          break;
 #endif
@@ -4600,7 +4586,6 @@ rtx
 set_unique_reg_note (rtx insn, enum reg_note kind, rtx datum)
 {
   rtx note = find_reg_note (insn, kind, NULL_RTX);
-  rtx new_note = NULL;
 
   switch (kind)
     {
@@ -4638,8 +4623,7 @@ set_unique_reg_note (rtx insn, enum reg_note kind, rtx datum)
       break;
     }
 
-  new_note = gen_rtx_EXPR_LIST (kind, datum, REG_NOTES (insn));
-  REG_NOTES (insn) = new_note;
+  add_reg_note (insn, kind, datum);
 
   switch (kind)
     {
@@ -5525,13 +5509,10 @@ emit_copy_of_insn_after (rtx insn, rtx after)
     if (REG_NOTE_KIND (link) != REG_LABEL_OPERAND)
       {
        if (GET_CODE (link) == EXPR_LIST)
-         REG_NOTES (new)
-               = gen_rtx_EXPR_LIST (REG_NOTE_KIND (link),
-                 copy_insn_1 (XEXP (link, 0)),  REG_NOTES (new));
+         add_reg_note (new, REG_NOTE_KIND (link),
+                       copy_insn_1 (XEXP (link, 0)));
        else
-         REG_NOTES (new)
-              = gen_rtx_INSN_LIST (REG_NOTE_KIND (link),
-                XEXP (link, 0),  REG_NOTES (new));
+         add_reg_note (new, REG_NOTE_KIND (link), XEXP (link, 0));
       }
 
   INSN_CODE (new) = INSN_CODE (insn);