diff options
Diffstat (limited to 'gcc/sched.c')
| -rw-r--r-- | gcc/sched.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/sched.c b/gcc/sched.c index b7aa75d..64b785f 100644 --- a/gcc/sched.c +++ b/gcc/sched.c @@ -2218,6 +2218,12 @@ create_reg_dead_note (reg, insn) GET_MODE (XEXP (link, 0)))); while (reg_note_regs < regs_killed) { + /* LINK might be zero if we killed more registers after scheduling + than before, and the last hard register we kill is actually + multiple hard regs. */ + if (link == NULL_RTX) + abort (); + link = XEXP (link, 1); reg_note_regs += (REGNO (XEXP (link, 0)) >= FIRST_PSEUDO_REGISTER ? 1 : HARD_REGNO_NREGS (REGNO (XEXP (link, 0)), |