Avoid updating instr_ptr for tail calls

[Robbepop]

This avoids updating the instruction pointer of the current call frame upon a tail call since this call frame is going to be discarded upon a tail call.

[paritytech-cicd-pr]

BENCHMARKS

	NATIVE			WASMTIME
BENCHMARK	MASTER	PR	DIFF	MASTER	PR	DIFF	WASMTIME OVERHEAD
execute/ bare_call_0	1.53ms	1.55ms	🔴 1.87%	1.09ms	1.15ms	🔴 5.93%	🟢 -26%
execute/ bare_call_0/typed	1.17ms	1.17ms	⚪ -0.26%	751.71µs	783.83µs	🔴 4.37%	🟢 -33%
execute/ bare_call_1	1.59ms	1.60ms	⚪ 0.45%	1.27ms	1.33ms	🔴 4.48%	🟢 -17%
execute/ bare_call_16	2.56ms	2.52ms	⚪ -1.45%	3.30ms	3.30ms	🔴 0.62%	🟢 31%
execute/ bare_call_16/typed	1.56ms	1.57ms	⚪ 0.64%	1.87ms	1.94ms	🔴 3.79%	🟢 24%
execute/ bare_call_1/typed	1.25ms	1.25ms	⚪ -0.09%	1.11ms	1.14ms	🔴 2.98%	🟢 -9%
execute/ bare_call_4	1.81ms	1.77ms	⚪ -2.06%	1.69ms	1.73ms	🔴 2.21%	🟢 -2%
execute/ bare_call_4/typed	1.22ms	1.23ms	⚪ 0.81%	1.04ms	1.08ms	🔴 3.32%	🟢 -12%
execute/ br_table	1.37ms	1.34ms	🟢 -2.31%	1.26ms	1.27ms	🔴 1.53%	🟢 -5%
execute/ count_until	575.62µs	651.65µs	🔴 13.06%	1.29ms	1.30ms	⚪ 0.14%	🟡 99%
execute/ factorial_iterative	319.16µs	322.38µs	⚪ 0.87%	581.79µs	587.59µs	⚪ 0.98%	🟡 82%
execute/ factorial_recursive	496.94µs	490.72µs	🟢 -1.33%	770.17µs	762.58µs	⚪ -1.03%	🟡 55%
execute/ fibonacci_iter	1.40ms	1.40ms	⚪ 0.48%	2.81ms	2.80ms	⚪ -0.21%	🟡 99%
execute/ fibonacci_rec	4.10ms	3.99ms	🟢 -2.60%	6.67ms	6.67ms	⚪ -0.20%	🟡 67%
execute/ fibonacci_tail	867.29µs	883.70µs	🔴 1.88%	1.64ms	1.64ms	⚪ -0.03%	🟡 85%
execute/ global_bump	778.73µs	743.48µs	🟢 -4.60%	1.69ms	1.69ms	⚪ 0.08%	🔴 127%
execute/ global_const	681.15µs	662.08µs	🟢 -2.75%	1.33ms	1.33ms	⚪ -0.04%	🔴 101%
execute/ host_calls	37.16µs	37.20µs	⚪ -0.89%	41.04µs	41.14µs	⚪ 0.68%	🟢 11%
execute/ memory_fill	1.21ms	1.22ms	⚪ 2.82%	2.45ms	2.45ms	⚪ -0.12%	🔴 101%
execute/ memory_sum	1.14ms	1.18ms	🔴 4.20%	2.51ms	2.47ms	🟢 -1.61%	🔴 109%
execute/ memory_vec_add	2.36ms	2.36ms	⚪ -0.06%	5.26ms	5.33ms	🔴 1.26%	🔴 126%
execute/ recursive_is_even	663.28µs	668.31µs	⚪ 0.30%	1.14ms	1.14ms	⚪ 0.03%	🟡 70%
execute/ recursive_ok	94.84µs	94.97µs	⚪ 0.37%	170.12µs	170.81µs	⚪ 0.36%	🟡 80%
execute/ recursive_scan	130.82µs	130.26µs	⚪ -0.43%	229.82µs	229.18µs	⚪ -0.28%	🟡 76%
execute/ recursive_trap	8.86µs	8.95µs	⚪ 0.73%	17.27µs	17.18µs	⚪ -0.49%	🟡 92%
execute/ regex_redux	455.70µs	460.55µs	⚪ 0.97%	890.95µs	906.53µs	🔴 1.80%	🟡 97%
execute/ rev_complement	424.06µs	426.23µs	⚪ 0.32%	863.57µs	868.74µs	⚪ 0.64%	🔴 104%
execute/ tiny_keccak	335.11µs	341.74µs	🔴 1.88%	663.77µs	666.42µs	⚪ 0.51%	🟡 95%
execute/ trunc_f2i	731.62µs	743.61µs	⚪ 1.49%	1.72ms	1.72ms	⚪ 0.33%	🔴 132%
instantiate/ wasm_kernel	53.10µs	55.30µs	⚪ 3.27%	54.10µs	56.19µs	⚪ 1.48%	🟢 2%
translate/ erc1155	215.09µs	213.79µs	⚪ -0.79%	363.03µs	355.37µs	🟢 -1.98%	🟡 66%
translate/ erc20	105.32µs	104.84µs	⚪ -0.46%	176.69µs	172.95µs	🟢 -1.96%	🟡 65%
translate/ erc721	149.52µs	149.47µs	⚪ 0.52%	256.29µs	249.37µs	🟢 -2.50%	🟡 67%
translate/ spidermonkey	67.03ms	66.94ms	⚪ 0.08%	0.00ns	0.00ns	⚪ -0.79%	🟢 -100%
translate/ wasm_kernel	4.41ms	4.48ms	🔴 1.70%	6.54ms	6.52ms	⚪ 0.18%	🟢 45%

Link to pipeline

[codecov-commenter]

Codecov Report

Merging #785 (de3a65e) into master (b7a3ef4) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #785      +/-   ##
==========================================
- Coverage   81.14%   81.13%   -0.02%     
==========================================
  Files         270      270              
  Lines       23217    23209       -8     
==========================================
- Hits        18840    18831       -9     
- Misses       4377     4378       +1     

Files	Coverage Δ
...s/wasmi/src/engine/regmach/executor/instrs/call.rs	72.83% <ø> (+0.22%)	⬆️
crates/wasmi/src/engine/executor.rs	80.09% <0.00%> (-0.22%)	⬇️

... and 2 files with indirect coverage changes

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