On 12/19/19 6:29 AM, Eric Botcazou wrote:
Simple LRA algorithms switch off hard register splitting, so there might
a slightly bigger chance for occurring "can find reload register" error
(e.g. when -O0 -fschedule-insns is used). But this error is still not
solved in general case and in my experie
> Simple LRA algorithms switch off hard register splitting, so there might
> a slightly bigger chance for occurring "can find reload register" error
> (e.g. when -O0 -fschedule-insns is used). But this error is still not
> solved in general case and in my experience the chance for this error is
> e
On 2019-12-17 1:02 p.m., Eric Botcazou wrote:
Hi,
LRA is getting measurably slower since GCC 8, at least on x86, and things are
worsening since GCC 9. While this might be legitimate when optimization is
enabled, it's a pure waste of cycles at -O0 so the attached patch switches LRA
over to usi
Hi,
LRA is getting measurably slower since GCC 8, at least on x86, and things are
worsening since GCC 9. While this might be legitimate when optimization is
enabled, it's a pure waste of cycles at -O0 so the attached patch switches LRA
over to using the simple algorithm when optimization is di
