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| -rw-r--r-- | gcc/sched.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/sched.c b/gcc/sched.c index 71cf52f..3560711 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)) |