8000 gh-104584: Support most jumping instructions by gvanrossum · Pull Request #106393 · python/cpython · GitHub
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gh-104584: Support most jumping instructions #106393

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gh-104584: Support most jumping instructions #106393

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d31d003
Hacky way to implement jump ops
gvanrossum Jul 2, 2023
b886ca6
Make JUMP_BACKWARD[_NO_INTERRUPT] viable
gvanrossum Jul 3, 2023
28b3951
Replace ENTER_EXECUTOR with the original in trace projection
gvanrossum Jul 3, 2023
0825696
Make POP_JUMP_IF_FALSE/TRUE conditionally jump
gvanrossum Jul 3, 2023
1df7b84
Implement JUMP_TO_TOP special uop
gvanrossum Jul 3, 2023
d6235ee
Cleanup some commented-out lines
gvanrossum Jul 4, 2023
6cd5719
Tweak FOR_ITER so it's viable
gvanrossum Jul 4, 2023
b33a1a2
Check room available for JUMP_TO_TOP
gvanrossum Jul 4, 2023
f5e18d8
A stray JUMP_BACKWARD also ends the trace
gvanrossum Jul 4, 2023
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A stray JUMP_BACKWARD also ends the trace
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@gvanrossum
gvanrossum committed Jul 7, 2023
commit f5e18d8f6d4e235984bf34295019683fcd07bee6
6 changes: 4 additions & 2 deletions Python/optimizer.c
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Expand Up @@ -459,9 +459,11 @@ translate_bytecode_to_trace(
&& trace_length + 3 <= max_length)
{
ADD_TO_TRACE(JUMP_TO_TOP, 0);
goto done;
}
// Else fall through!
else {
DPRINTF(2, "JUMP_BACKWARD not to top ends trace\n");
}
goto done;
}
default:
{
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