I figured that if you read from memory, and then write to memory, it's
not safe to read from the same memory block again because the write
address could be equal to (or overlap) the read memory and it's
impossible to rule that out if different registers are used. It might be
okay if the
> Am 13.11.2021 um 00:55 schrieb J. Gareth Moreton via fpc-devel
> :
>
> Hi everyone,
>
> I have a question when it comes to optimising memory reads and writes. What
> are the rules for FPC when it comes to writing to memory and then reading
> from it later within a single subroutine? For
On Fri, 12 Nov 2021, J. Gareth Moreton via fpc-devel wrote:
Hi everyone,
I have a question when it comes to optimising memory reads and writes.
What are the rules for FPC when it comes to writing to memory and then
reading from it later within a single subroutine? For example, say I had
Hi everyone,
I have a question when it comes to optimising memory reads and writes.
What are the rules for FPC when it comes to writing to memory and then
reading from it later within a single subroutine? For example, say I had
this pair of commands:
movq %rdx,-584(%rbp)
movl
