On 06/15/2016 07:14 PM, Alan Modra wrote:
On Wed, Jun 15, 2016 at 04:03:04PM -0600, Jeff Law wrote:
FWIW I don't think ownership of the argument slots has ever been
definitively addressed by any ABI and it's been an open question in my mind
for 20+ years -- though I've largely leaned towards
On Wed, Jun 15, 2016 at 04:03:04PM -0600, Jeff Law wrote:
> FWIW I don't think ownership of the argument slots has ever been
> definitively addressed by any ABI and it's been an open question in my mind
> for 20+ years -- though I've largely leaned towards callee ownership on my
> own thinking.
On 06/15/2016 01:46 PM, Jakub Jelinek wrote:
Hi!
As the following testcase shows, CSE mishandles const/pure calls, it assumes
that const/pure calls can't clobber even their argument slots. But, the
argument slots are owned by the callee, so need to be volatile across the
calls. On the
Hi!
As the following testcase shows, CSE mishandles const/pure calls, it assumes
that const/pure calls can't clobber even their argument slots. But, the
argument slots are owned by the callee, so need to be volatile across the
calls. On the testcase the second round of argument stores is
