Jeff Law via Gcc-patches writes:
> On 11/13/20 1:19 AM, Richard Sandiford via Gcc-patches wrote:
>> In some cases, it can be convenient to roll back the changes that
>> have been made by validate_change to see how things looked before,
>> then reroll the changes. For example, this makes it possib
On 11/13/20 1:19 AM, Richard Sandiford via Gcc-patches wrote:
> In some cases, it can be convenient to roll back the changes that
> have been made by validate_change to see how things looked before,
> then reroll the changes. For example, this makes it possible
> to defer calculating the cost o
In some cases, it can be convenient to roll back the changes that
have been made by validate_change to see how things looked before,
then reroll the changes. For example, this makes it possible
to defer calculating the cost of an instruction until we know that
the result is actually needed. It ca