gh-142863: optimize list and set calls with generator expressions

[kumaraditya303]

• Issue: optimize list/set calls with generator expression #142863

[kumaraditya303]

Benchmark results:

Before:

❯ ./python.exe -m timeit "list(x for x in range(10000))"
2000 loops, best of 5: 188 usec per loop
❯ ./python.exe -m timeit "set(x for x in range(10000))"
1000 loops, best of 5: 226 usec per loop

After:

❯ ./python.exe -m timeit "list(x for x in range(10000))"
2000 loops, best of 5: 150 usec per loop
❯ ./python.exe -m timeit "set(x for x in range(10000))"
2000 loops, best of 5: 178 usec per loop

[markshannon]

This looks promising.

@kumaraditya303 can you benchmark this with small sequences, as those tend to more common.

@iritkatriel could you take a look, as author of the tuple/any/all optimization.

[kumaraditya303]

can you benchmark this with small sequences, as those tend to more common.

Benchmark with smaller sequence:
Before:

❯ ./python.exe -m timeit "list(x for x in range(25))" 
500000 loops, best of 5: 483 nsec per loop

After:

 ❯ ./python.exe -m timeit "list(x for x in range(25))" 
500000 loops, best of 5: 390 nsec per loop