From a2f2ce96f8cb7b7a067a124de2eb3b1a4b9aa8fb Mon Sep 17 00:00:00 2001 From: Jim Wilson Date: Tue, 17 Dec 1996 12:02:06 -0800 Subject: [PATCH] (update_flow_info): When add REG_DEAD notes for dest of last insn, add check for global_regs. From-SVN: r13318 --- gcc/sched.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/gcc/sched.c b/gcc/sched.c index 71cf52ff6150..356071177d19 100644 --- a/gcc/sched.c +++ b/gcc/sched.c @@ -4629,6 +4629,10 @@ update_flow_info (notes, first, last, orig_insn) dest = XEXP (dest, 0); if (GET_CODE (dest) == REG + /* Global registers are always live, so the code below does not + apply to them. */ + && (REGNO (dest) >= FIRST_PSEUDO_REGISTER + || ! global_regs[REGNO (dest)]) && ! reg_overlap_mentioned_p (dest, SET_SRC (set))) { for (insn = PREV_INSN (last); ; insn = PREV_INSN (insn))