bugfix: clear preservations when resetting register alloc

[Robbepop]

No description provided.

[paritytech-cicd-pr]

BENCHMARKS

	NATIVE			WASMTIME
BENCHMARK	MASTER	PR	DIFF	MASTER	PR	DIFF	WASMTIME OVERHEAD
execute/ bare_call_0	1.56ms	1.56ms	🔴 -0.14%	1.18ms	1.08ms	🟢 -9.06%	🟢 -31%
execute/ bare_call_0/typed	1.16ms	1.18ms	🔴 2.35%	781.59µs	757.30µs	🟢 -2.83%	🟢 -36%
execute/ bare_call_1	1.61ms	1.60ms	🟢 0.06%	1.39ms	1.27ms	🟢 -9.12%	🟢 -21%
execute/ bare_call_16	2.59ms	2.53ms	🟢 -1.98%	3.36ms	3.36ms	⚪ 0.00%	🟢 32%
execute/ bare_call_16/typed	1.55ms	1.55ms	⚪ -0.21%	1.87ms	1.86ms	⚪ -0.77%	🟢 20%
execute/ bare_call_1/typed	1.26ms	1.27ms	⚪ 0.55%	1.27ms	1.16ms	🟢 -9.33%	🟢 -9%
execute/ bare_call_4	1.76ms	1.77ms	🔴 0.36%	1.76ms	1.60ms	🟢 -9.24%	🟢 -10%
execute/ bare_call_4/typed	1.21ms	1.23ms	🔴 1.69%	1.11ms	1.05ms	🟢 -5.65%	🟢 -15%
execute/ br_table	1.35ms	1.38ms	🔴 1.99%	1.27ms	1.27ms	⚪ -0.62%	🟢 -8%
execute/ count_until	620.41µs	620.74µs	⚪ 0.15%	1.30ms	1.32ms	⚪ 0.95%	🔴 112%
execute/ factorial_iterative	319.00µs	319.50µs	⚪ 0.11%	577.45µs	578.54µs	⚪ -0.01%	🟡 81%
execute/ factorial_recursive	491.10µs	494.99µs	⚪ 0.78%	749.56µs	760.41µs	🔴 1.49%	🟡 54%
execute/ fibonacci_iter	1.75ms	1.40ms	🟢 -19.99%	2.78ms	2.90ms	🔴 4.17%	🔴 107%
execute/ fibonacci_rec	3.97ms	3.97ms	⚪ -0.18%	6.70ms	6.74ms	⚪ 0.49%	🟡 70%
execute/ fibonacci_tail	856.53µs	858.02µs	⚪ 0.16%	1.64ms	1.69ms	🔴 3.35%	🟡 97%
execute/ global_bump	747.84µs	747.73µs	⚪ -0.02%	1.68ms	1.69ms	⚪ 0.00%	🔴 127%
execute/ global_const	659.06µs	658.81µs	⚪ -0.04%	1.34ms	1.38ms	🔴 2.62%	🔴 109%
execute/ host_calls	36.82µs	37.30µs	⚪ 1.73%	41.55µs	38.66µs	🟢 -6.99%	🟢 4%
execute/ memory_fill	1.17ms	1.15ms	⚪ -1.56%	2.45ms	2.38ms	🟢 -2.86%	🔴 107%
execute/ memory_sum	1.14ms	1.14ms	⚪ 1.73%	2.40ms	2.42ms	⚪ 0.94%	🔴 112%
execute/ memory_vec_add	2.35ms	2.47ms	🔴 5.05%	5.26ms	5.28ms	⚪ 0.29%	🔴 114%
execute/ recursive_is_even	664.68µs	664.83µs	⚪ 0.03%	1.12ms	1.14ms	🔴 1.76%	🟡 71%
execute/ recursive_ok	94.35µs	95.75µs	⚪ 1.05%	170.37µs	171.15µs	⚪ 0.46%	🟡 79%
execute/ recursive_scan	129.53µs	129.90µs	⚪ 0.08%	228.49µs	228.38µs	⚪ -0.18%	🟡 76%
execute/ recursive_trap	8.79µs	8.85µs	⚪ 0.93%	17.13µs	17.16µs	⚪ 0.09%	🟡 94%
execute/ regex_redux	456.68µs	459.91µs	⚪ 0.92%	934.99µs	902.56µs	🟢 -3.58%	🟡 96%
execute/ rev_complement	425.52µs	421.45µs	⚪ -0.96%	864.61µs	870.60µs	⚪ 0.58%	🔴 107%
execute/ tiny_keccak	317.89µs	322.32µs	🔴 1.56%	669.68µs	702.84µs	🔴 4.94%	🔴 118%
execute/ trunc_f2i	738.70µs	738.35µs	⚪ -0.15%	1.70ms	1.74ms	🔴 2.33%	🔴 136%
instantiate/ wasm_kernel	54.22µs	57.22µs	🔴 5.10%	58.12µs	52.11µs	🟢 -11.01%	🟢 -9%
translate/ erc1155	206.28µs	208.15µs	⚪ 0.92%	357.99µs	358.94µs	⚪ 0.50%	🟡 72%
translate/ erc20	103.04µs	102.87µs	⚪ -0.30%	173.15µs	174.11µs	⚪ 0.52%	🟡 69%
translate/ erc721	145.33µs	144.75µs	⚪ -0.34%	251.54µs	253.13µs	⚪ 0.61%	🟡 75%
translate/ spidermonkey	63.72ms	63.58ms	⚪ -0.36%	0.00ns	0.00ns	🔴 1.81%	🟢 -100%
translate/ wasm_kernel	4.17ms	4.15ms	⚪ 0.07%	6.43ms	6.52ms	🔴 1.37%	🟡 57%

Link to pipeline

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (7911bd2) 81.39% compared to head (fa2111e) 81.40%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #787      +/-   ##
==========================================
+ Coverage   81.39%   81.40%   +0.01%     
==========================================
  Files         271      271              
  Lines       24235    24236       +1     
==========================================
+ Hits        19725    19730       +5     
+ Misses       4510     4506       -4     

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