search for: haszerooverheadlooping

...ems that it checks if it is profitable to unroll it or not based on certain parameters. Given that zero cost loops building is based more or less on the same constraints that loop unroll pass, I wonder if it is reasonable to add yet another target hook to prevent loop unrolling (something like hasZeroOverheadLooping or hasZeroCostLooping) for targets that support zero-cost looping. Does Hexagon provides the same loop support? How have you addressed this? Ivan

...fitable to unroll it or not based on > certain parameters. > > Given that zero cost loops building is based more or less on the same > constraints that loop unroll pass, I wonder if it is reasonable to > add > yet another target hook to prevent loop unrolling (something like > hasZeroOverheadLooping or hasZeroCostLooping) for targets that > support > zero-cost looping. Ivan, Please feel free to extend the ScalarTargetTransformInfo interface (in include/llvm/TargetTransformInfo.h) to provide target-customizable parameters to the loop unroller. This is on my TODO list, but if you'd l...

...based on >> certain parameters. >> >> Given that zero cost loops building is based more or less on the same >> constraints that loop unroll pass, I wonder if it is reasonable to >> add >> yet another target hook to prevent loop unrolling (something like >> hasZeroOverheadLooping or hasZeroCostLooping) for targets that >> support >> zero-cost looping. > > Ivan, > > Please feel free to extend the ScalarTargetTransformInfo interface (in include/llvm/TargetTransformInfo.h) to provide target-customizable parameters to the loop unroller. This is on my TOD...

...in parameters. >>> >>> Given that zero cost loops building is based more or less on the same >>> constraints that loop unroll pass, I wonder if it is reasonable to >>> add >>> yet another target hook to prevent loop unrolling (something like >>> hasZeroOverheadLooping or hasZeroCostLooping) for targets that >>> support >>> zero-cost looping. >> >> Ivan, >> >> Please feel free to extend the ScalarTargetTransformInfo interface >> (in include/llvm/TargetTransformInfo.h) to provide >> target-customizable parame...

...gt;> >>>> Given that zero cost loops building is based more or less on the same >>>> constraints that loop unroll pass, I wonder if it is reasonable to >>>> add >>>> yet another target hook to prevent loop unrolling (something like >>>> hasZeroOverheadLooping or hasZeroCostLooping) for targets that >>>> support >>>> zero-cost looping. >>> >>> Ivan, >>> >>> Please feel free to extend the ScalarTargetTransformInfo interface >>> (in include/llvm/TargetTransformInfo.h) to provide >&gt...

...>> Given that zero cost loops building is based more or less on the same >>>>> constraints that loop unroll pass, I wonder if it is reasonable to >>>>> add >>>>> yet another target hook to prevent loop unrolling (something like >>>>> hasZeroOverheadLooping or hasZeroCostLooping) for targets that >>>>> support >>>>> zero-cost looping. >>>> >>>> Ivan, >>>> >>>> Please feel free to extend the ScalarTargetTransformInfo interface (in include/llvm/TargetTransformInfo.h) to prov...