perf(llvm): limit expensive live range splitting (#362) #1820

Job	Run time
clippy	2m 0s
fmt	13s
docs	1m 41s
state-tests (ubuntu, interpreter)	2m 46s
state-tests (macos, jit)	7m 25s
state-tests (ubuntu, aot)	3m 48s
state-tests (macos, interpreter)	3m 51s
state-tests (ubuntu, jit)	4m 12s
feature-checks	2m 20s
test ubuntu-x64-stable dev	2m 25s
test ubuntu-x64-nightly dev	2m 13s
test macos-arm64-stable release	5m 44s
test macos-arm64-stable dev	2m 12s
test ubuntu-x64-stable release	4m 56s
test macos-arm64-nightly dev	3m 0s
test ubuntu-x64-nightly release	4m 28s
test macos-arm64-nightly release	5m 42s
deploy-docs	10s
success	2s
	59m 8s

Provide feedback