llvm

8cba99e2 - [ARM][MVE] Tail-Predication: rematerialise iteration count in exit blocks

[ARM][MVE] Tail-Predication: rematerialise iteration count in exit blocks This patch uses helper function rewriteLoopExitValues that is refactored in D72602 to rematerialise the iteration count in exit blocks, so that we can clean-up loop update expressions inside the hardware-loops later in ARMLowOverheadLoops, which is necessary to get actual performance gains for tail-predicated loops. Differential Revision: https://reviews.llvm.org/D72714