search for: ppc9

Sorry to bring this thread from 3 months ago back, but I’m running into this issue too. I do see that shouldIgnore is not called in the MachinePipeliner, however, James’ comment doesn’t really resolve the issue or make the story any clearer. My summary of the comment is: “Hexagon and PPC9 do not need to ignore any instructions. However, in the case that you do, such as when the indvar update is explicit, this function is provided to allow the target to strip those instructions from the pipelined kernel.” However, the reality is that the implementation seems incomplete and there’s n...

...this thread from 3 months ago back, but I’m running into > this issue too. > I do see that shouldIgnore is not called in the MachinePipeliner, however, > James’ comment doesn’t really resolve the issue or make the story any > clearer. > > My summary of the comment is: “Hexagon and PPC9 do not need to ignore any > instructions. However, in the case that you do, such as when the indvar > update is explicit, this function is provided to allow the target to strip > those instructions from the pipelined kernel.” > > However, the reality is that the implementation seems...

Hi all, I think there is a mistake in the machinepipeliner interface. In the TargetInstrInfo.h in the class PipelinerLoopInfo there is a function "bool shouldIgnoreForPipelining(const MachineInstr *MI)". The description says that if this function returns true for a given MachineInstr it will not be pipelined. However in reality it is not ignored and is being considered for

...this thread from 3 months ago back, but I’m running into > this issue too. > I do see that shouldIgnore is not called in the MachinePipeliner, however, > James’ comment doesn’t really resolve the issue or make the story any > clearer. > > My summary of the comment is: “Hexagon and PPC9 do not need to ignore any > instructions. However, in the case that you do, such as when the indvar > update is explicit, this function is provided to allow the target to strip > those instructions from the pipelined kernel.” > > However, the reality is that the implementation seems...

...this thread from 3 months ago back, but I’m running into > this issue too. > I do see that shouldIgnore is not called in the MachinePipeliner, however, > James’ comment doesn’t really resolve the issue or make the story any > clearer. > > My summary of the comment is: “Hexagon and PPC9 do not need to ignore any > instructions. However, in the case that you do, such as when the indvar > update is explicit, this function is provided to allow the target to strip > those instructions from the pipelined kernel.” > > However, the reality is that the implementation seems...