diff options
Diffstat (limited to 'gcc/lower-subreg.c')
| -rw-r--r-- | gcc/lower-subreg.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/gcc/lower-subreg.c b/gcc/lower-subreg.c index b8e2eb6..e5e76b0 100644 --- a/gcc/lower-subreg.c +++ b/gcc/lower-subreg.c @@ -586,7 +586,7 @@ move_libcall_note (rtx old_start, rtx new_start) static void remove_retval_note (rtx insn1) { - rtx note0, insn0, note1, insn; + rtx note0, insn0, note1, insn, next; note1 = find_reg_note (insn1, REG_RETVAL, NULL); if (note1 == NULL_RTX) @@ -598,8 +598,9 @@ remove_retval_note (rtx insn1) remove_note (insn0, note0); remove_note (insn1, note1); - for (insn = insn0; insn != insn1; insn = NEXT_INSN (insn)) + for (insn = insn0; (insn != insn1) && insn; insn = next) { + next = NEXT_INSN (insn); while (1) { rtx note; @@ -1254,9 +1255,9 @@ decompose_multiword_subregs (void) FOR_EACH_BB (bb) { - rtx insn; + rtx insn, next; - FOR_BB_INSNS (bb, insn) + FOR_BB_INSNS_SAFE (bb, insn, next) { rtx next, pat; |