[AArch64] Increase AddedComplexity of BIC
This diff adjusts AddedComplexity of BIC to bump its position
in the list of patterns to make LLVM pick it instead of MVN + AND.
MVN + AND requires 2 cycles, so does e.g. MOV + BIC, but the latter
outperforms the former if the instructions producing the operands of
BIC can be issued in parallel.
One may consider the following example:
ldur x15, [x0, #2] # 4 cycles
mvn x10, x15 # 1 cycle (depends on ldur)
and x9, x10, #0x8080808080808080
vs.
ldur x15, [x0, #2] # 4 cycles
mov x9, #0x8080808080808080 # 1 cycle (can be executed in parallel with ldur)
bic x9, x9, x15. # 1 cycle
Test plan: ninja check-all
Differential revision: https://reviews.llvm.org/D133345