@@ -3437,20 +3437,20 @@ prev_active_insn (rtx insn)
Return 0 if we can't find the insn. */
-rtx
+rtx_insn *
next_cc0_user (rtx insn)
{
rtx note = find_reg_note (insn, REG_CC_USER, NULL_RTX);
if (note)
- return XEXP (note, 0);
+ return as_a_nullable <rtx_insn *> (XEXP (note, 0));
insn = next_nonnote_insn (insn);
if (insn && NONJUMP_INSN_P (insn) && GET_CODE (PATTERN (insn)) == SEQUENCE)
insn = XVECEXP (PATTERN (insn), 0, 0);
if (insn && INSN_P (insn) && reg_mentioned_p (cc0_rtx, PATTERN (insn)))
- return insn;
+ return as_a_nullable <rtx_insn *> (insn);
return 0;
}
@@ -3458,18 +3458,18 @@ next_cc0_user (rtx insn)
/* Find the insn that set CC0 for INSN. Unless INSN has a REG_CC_SETTER
note, it is the previous insn. */
-rtx
+rtx_insn *
prev_cc0_setter (rtx insn)
{
rtx note = find_reg_note (insn, REG_CC_SETTER, NULL_RTX);
if (note)
- return XEXP (note, 0);
+ return as_a_nullable <rtx_insn *> (XEXP (note, 0));
insn = prev_nonnote_insn (insn);
gcc_assert (sets_cc0_p (PATTERN (insn)));
- return insn;
+ return as_a_nullable <rtx_insn *> (insn);
}
#endif
@@ -2418,8 +2418,8 @@ extern rtx_insn *next_real_insn (rtx);
extern rtx_insn *prev_active_insn (rtx);
extern rtx_insn *next_active_insn (rtx);
extern int active_insn_p (const_rtx);
-extern rtx next_cc0_user (rtx);
-extern rtx prev_cc0_setter (rtx);
+extern rtx_insn *next_cc0_user (rtx);
+extern rtx_insn *prev_cc0_setter (rtx);
/* In emit-rtl.c */
extern int insn_line (const_rtx);