diff options
Diffstat (limited to 'gcc/sched-deps.c')
| -rw-r--r-- | gcc/sched-deps.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/sched-deps.c b/gcc/sched-deps.c index 41a6af2..dc46351 100644 --- a/gcc/sched-deps.c +++ b/gcc/sched-deps.c @@ -3992,8 +3992,14 @@ remove_from_deps (struct deps_desc *deps, rtx_insn *insn) removed = remove_from_dependence_list (insn, &deps->last_pending_memory_flush); deps->pending_flush_length -= removed; + unsigned to_clear = -1U; EXECUTE_IF_SET_IN_REG_SET (&deps->reg_last_in_use, 0, i, rsi) { + if (to_clear != -1U) + { + CLEAR_REGNO_REG_SET (&deps->reg_last_in_use, to_clear); + to_clear = -1U; + } struct deps_reg *reg_last = &deps->reg_last[i]; if (reg_last->uses) remove_from_dependence_list (insn, ®_last->uses); @@ -4005,8 +4011,10 @@ remove_from_deps (struct deps_desc *deps, rtx_insn *insn) remove_from_dependence_list (insn, ®_last->clobbers); if (!reg_last->uses && !reg_last->sets && !reg_last->implicit_sets && !reg_last->clobbers) - CLEAR_REGNO_REG_SET (&deps->reg_last_in_use, i); + to_clear = i; } + if (to_clear != -1U) + CLEAR_REGNO_REG_SET (&deps->reg_last_in_use, to_clear); if (CALL_P (insn)) { |