[JDK-8200303] C2 should leverage profiling for lookupswitch/tableswitch - Java Bug System

Same motivation as ~~JDK-8058192~~ that seems to be used to cover graal.

relates to

JDK-8209544 AES encrypt performance regression in jdk11b11

JDK-8210389 C2: assert(n->outcnt() != 0 || C->top() == n || n->is_Proj()) failed: No dead instructions after post-alloc

JDK-8229855 C2 fails with assert(false) failed: bad AD file

JDK-8251458 Parse::do_lookupswitch fails with "assert(_cnt >= 0) failed"

JDK-8203196 C1 emits incorrect code due to integer overflow in _tableswitch keys

JDK-8244301 OpenJDK 11.0.2+9 crashes once in a while on C2 Compile task, compute_tree_cost(SwitchRange*, SwitchRange*, float)

JDK-8201366 Improve output of dumpideal SA command for MachNodes

JDK-8058192 compiler ignores lookupswitch and tableswitch branch profile numbers

JDK-8229158 make UseSwitchProfiling non-experimental or false by-default

(4 relates to)