feat: bump llvm to version 16

[Chronostasys]

also have some commits related to #347 and #286

close #351

[github-actions]

Benchmark for dc9b62a

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Test	Base	PR	%
allocation bench/malloc benchmark small objects	35.0±17.92ns	35.0±11.03ns	0.00%
allocation bench/singlethread gc alloc benchmark small objects	10.3±1.44ns	11.5±0.52ns	+11.65%
multithreads(4) gc benchmark--65535 small objects(per thread)	1801.0±435.88µs	1725.7±335.58µs	-4.18%
plimmixgc/multi-thread gc stress benchmark small objects	1254.6±53.05ms	1224.2±34.40ms	-2.42%
plimmixgc/singlethread gc stress benchmark small objects	828.5±20.52ms	826.1±18.87ms	-0.29%
singlethread gc benchmark--65535 small objects	804.2±11.34µs	767.5±18.63µs	-4.56%

[codecov]

Codecov Report

Merging #350 (590b61b) into master (559ac2c) will decrease coverage by 0.76%.
Report is 2 commits behind head on master.
The diff coverage is 80.66%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #350      +/-   ##
==========================================
- Coverage   86.57%   85.82%   -0.76%     
==========================================
  Files         107      108       +1     
  Lines       22502    23979    +1477     
==========================================
+ Hits        19481    20579    +1098     
- Misses       3021     3400     +379     

Files	Coverage Δ
immix/src/allocator/global_allocator.rs	77.77% <100.00%> (+0.33%)	⬆️
immix/src/allocator/thread_local_allocator.rs	84.46% <100.00%> (ø)
immix/src/block.rs	92.53% <100.00%> (ø)
pl_linker/src/linker.rs	81.92% <100.00%> (+0.05%)	⬆️
src/ast/builder/mod.rs	33.33% <ø> (ø)
src/ast/builder/no_op_builder.rs	81.57% <100.00%> (+0.81%)	⬆️
src/ast/compiler.rs	95.69% <100.00%> (ø)
src/ast/ctx/cast.rs	83.33% <100.00%> (+3.12%)	⬆️
src/ast/diag.rs	64.28% <ø> (ø)
src/ast/node/cast.rs	96.52% <100.00%> (+0.54%)	⬆️
... and 30 more

... and 4 files with indirect coverage changes

[github-actions]

Benchmark for 9138fa1

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Test	Base	PR	%
allocation bench/malloc benchmark small objects	33.5±9.84ns	34.8±16.78ns	+3.88%
allocation bench/singlethread gc alloc benchmark small objects	10.3±1.10ns	11.3±0.44ns	+9.71%
multithreads(4) gc benchmark--65535 small objects(per thread)	1643.1±387.07µs	1521.0±176.32µs	-7.43%
plimmixgc/multi-thread gc stress benchmark small objects	1217.9±41.60ms	1168.0±28.34ms	-4.10%
plimmixgc/singlethread gc stress benchmark small objects	733.4±18.49ms	737.2±20.29ms	+0.52%
singlethread gc benchmark--65535 small objects	754.4±25.96µs	752.9±10.08µs	-0.20%

[github-actions]

Benchmark for b0c8aeb

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Test	Base	PR	%
allocation bench/malloc benchmark small objects	33.7±9.01ns	34.0±9.97ns	+0.89%
allocation bench/singlethread gc alloc benchmark small objects	11.2±2.99ns	11.4±2.06ns	+1.79%
multithreads(4) gc benchmark--65535 small objects(per thread)	1676.7±135.58µs	1948.3±364.88µs	+16.20%
plimmixgc/multi-thread gc stress benchmark small objects	1227.3±21.18ms	1227.9±46.23ms	+0.05%
plimmixgc/singlethread gc stress benchmark small objects	835.2±14.20ms	828.6±9.83ms	-0.79%
singlethread gc benchmark--65535 small objects	816.1±27.30µs	780.6±22.52µs	-4.35%

[github-actions]

Benchmark for f489881

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Test	Base	PR	%
allocation bench/malloc benchmark small objects	34.3±12.29ns	34.4±11.65ns	+0.29%
allocation bench/singlethread gc alloc benchmark small objects	10.6±2.47ns	11.3±0.57ns	+6.60%
multithreads(4) gc benchmark--65535 small objects(per thread)	1503.9±53.75µs	1553.1±282.12µs	+3.27%
plimmixgc/multi-thread gc stress benchmark small objects	1202.2±63.53ms	1199.7±40.01ms	-0.21%
plimmixgc/singlethread gc stress benchmark small objects	731.9±13.79ms	731.0±17.94ms	-0.12%
singlethread gc benchmark--65535 small objects	762.9±29.43µs	753.9±10.74µs	-1.18%

[github-actions]

Benchmark for e03357a

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Test	Base	PR	%
allocation bench/malloc benchmark small objects	34.1±12.84ns	33.4±10.04ns	-2.05%
allocation bench/singlethread gc alloc benchmark small objects	11.2±5.12ns	11.4±1.21ns	+1.79%
multithreads(4) gc benchmark--65535 small objects(per thread)	1613.2±54.42µs	1640.0±195.42µs	+1.66%
plimmixgc/multi-thread gc stress benchmark small objects	1225.3±33.92ms	1225.5±34.66ms	+0.02%
plimmixgc/singlethread gc stress benchmark small objects	783.0±20.65ms	800.5±18.59ms	+2.23%
singlethread gc benchmark--65535 small objects	790.2±40.49µs	780.1±13.64µs	-1.28%

[github-actions]

Benchmark for 4573df7

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Test	Base	PR	%
allocation bench/malloc benchmark small objects	33.9±10.20ns	34.0±11.67ns	+0.29%
allocation bench/singlethread gc alloc benchmark small objects	10.5±2.39ns	12.7±3.43ns	+20.95%
multithreads(4) gc benchmark--65535 small objects(per thread)	1592.0±375.16µs	1619.5±377.97µs	+1.73%
plimmixgc/multi-thread gc stress benchmark small objects	1201.4±43.00ms	1178.7±36.72ms	-1.89%
plimmixgc/singlethread gc stress benchmark small objects	773.3±31.63ms	756.7±25.44ms	-2.15%
singlethread gc benchmark--65535 small objects	764.8±9.95µs	757.3±14.02µs	-0.98%

[github-actions]

Benchmark for a4bf8b4

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Test	Base	PR	%
allocation bench/malloc benchmark small objects	34.4±13.94ns	34.3±10.48ns	-0.29%
allocation bench/singlethread gc alloc benchmark small objects	11.0±5.08ns	11.4±0.80ns	+3.64%
multithreads(4) gc benchmark--65535 small objects(per thread)	1744.0±285.54µs	1734.9±410.26µs	-0.52%
plimmixgc/multi-thread gc stress benchmark small objects	1220.1±31.21ms	1198.8±32.32ms	-1.75%
plimmixgc/singlethread gc stress benchmark small objects	755.9±14.25ms	784.7±22.44ms	+3.81%
singlethread gc benchmark--65535 small objects	766.4±11.45µs	756.4±11.35µs	-1.30%

[github-actions]

Benchmark for d7ace02

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Test	Base	PR	%
allocation bench/malloc benchmark small objects	34.2±10.68ns	34.0±10.45ns	-0.58%
allocation bench/singlethread gc alloc benchmark small objects	11.6±1.31ns	11.4±1.21ns	-1.72%
multithreads(4) gc benchmark--65535 small objects(per thread)	1571.1±238.36µs	1613.4±379.77µs	+2.69%
plimmixgc/multi-thread gc stress benchmark small objects	1223.8±53.28ms	1203.7±29.88ms	-1.64%
plimmixgc/singlethread gc stress benchmark small objects	750.0±18.17ms	761.5±22.63ms	+1.53%
singlethread gc benchmark--65535 small objects	754.3±4.68µs	755.2±15.66µs	+0.12%