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Re: [PATCH] Fix get_last_value_validate (PR rtl-optimization/41511)
Eric Botcazou <ebotcazou@adacore.com> writes:
> * combine.c (record_value_for_reg): Pass explicity value as argument
> to get_last_value_validate.
This confused me at first because there is an argument called "value"
and you pass label_tick explicitly not "value":
> @@ -11752,12 +11752,10 @@ record_value_for_reg (rtx reg, rtx insn,
> case, we must replace it with (clobber (const_int 0)) to prevent
> infinite loops. */
> rsp = VEC_index (reg_stat_type, reg_stat, regno);
> - if (value && ! get_last_value_validate (&value, insn,
> - rsp->last_set_label, 0))
> + if (value && !get_last_value_validate (&value, insn, label_tick, 0))
> {
> value = copy_rtx (value);
Adam