On 02/11/2011 07:33 AM, Bernd Schmidt wrote:
Suppose I have two insns, one reserving (A|B|C), and the other reserving
A. I'm observing that when the first one is scheduled in an otherwise
empty state, it reserves the A unit and blocks the second one from being
scheduled in the same cycle. This is
On 02/11/2011 07:43 PM, Frédéric RISS wrote:
> Le vendredi 11 février 2011 à 13:33 +0100, Bernd Schmidt a écrit :
>> Suppose I have two insns, one reserving (A|B|C), and the other reserving
>> A. I'm observing that when the first one is scheduled in an otherwise
>> empty state, it reserves the A un
Le vendredi 11 février 2011 à 13:33 +0100, Bernd Schmidt a écrit :
> Suppose I have two insns, one reserving (A|B|C), and the other reserving
> A. I'm observing that when the first one is scheduled in an otherwise
> empty state, it reserves the A unit and blocks the second one from being
> schedule
ubject: Scheduling automaton question
> To: "GCC List"
> Cc: "Vladimir N. Makarov"
> Date: Friday, February 11, 2011, 2:33 PM
> Suppose I have two insns, one
> reserving (A|B|C), and the other reserving
> A. I'm observing that when the first one is scheduled in an
On 02/11/2011 02:13 PM, Alexander Monakov wrote:
> Could you please clarify a bit: would the modified behavior match what your
> target CPU does? The current behavior matches CPUs without lookahead in
> instruction dispatch: the first insn goes to the first matching execution
> unit (A), the secon
On Fri, 11 Feb 2011, Bernd Schmidt wrote:
> Suppose I have two insns, one reserving (A|B|C), and the other reserving
> A. I'm observing that when the first one is scheduled in an otherwise
> empty state, it reserves the A unit and blocks the second one from being
> scheduled in the same cycle. T
Suppose I have two insns, one reserving (A|B|C), and the other reserving
A. I'm observing that when the first one is scheduled in an otherwise
empty state, it reserves the A unit and blocks the second one from being
scheduled in the same cycle. This is a problem when there's an
anti-dependence of c
