llvm-project

b0cc73d0 - [GlobalISel] add G_ROTL, G_ROTR to computeKnownBits (#166365)

[GlobalISel] add G_ROTL, G_ROTR to computeKnownBits (#166365) Adresses one of the subtasks of #150515. The code is ported from `SelectionDAG::computeKnownBits` and tests are loosely based on `AArch64/GlobalISel/knownbits-shl.mir`.