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GH-131798: Narrow types more aggressively in the JIT #134373

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Merged
brandtbucher merged 7 commits into from
May 20, 2025
Merged

GH-131798: Narrow types more aggressively in the JIT #134373

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1a958a8
Also set the type when setting the type version
brandtbucher May 20, 2025
1cd663f
blurb add
brandtbucher May 20, 2025
d097c86
Feedback from code review
brandtbucher May 20, 2025
2f8dad9
Feedback from code review
brandtbucher May 20, 2025
f483964
Make the peephole pass way simpler
brandtbucher May 20, 2025
101955f
Naming
brandtbucher May 20, 2025
0974ec9
Fix the crashes
brandtbucher May 20, 2025
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Naming
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@brandtbucher
brandtbucher committed May 20, 2025
commit 101955f463e555d67c8805bcb6f02034907798d8
6 changes: 3 additions & 3 deletions Python/optimizer_analysis.c
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Original file line number Diff line number Diff line change
Expand Up @@ -530,7 +530,7 @@ const uint16_t op_without_pop[MAX_UOP_ID] = {
[_POP_TWO_LOAD_CONST_INLINE_BORROW] = _POP_TOP_LOAD_CONST_INLINE_BORROW,
};

const uint16_t remove_push[MAX_UOP_ID] = {
const uint16_t op_without_push[MAX_UOP_ID] = {
[_COPY] = _NOP,
[_LOAD_CONST_INLINE] = _NOP,
[_LOAD_CONST_INLINE_BORROW] = _NOP,
Expand Down Expand Up @@ -581,10 +581,10 @@ remove_unneeded_uops(_PyUOpInstruction *buffer, int buffer_size)
while (last->opcode == _NOP) {
last--;
}
if (!remove_push[last->opcode]) {
if (!op_without_push[last->opcode]) {
break;
}
last->opcode = remove_push[last->opcode];
last->opcode = op_without_push[last->opcode];
opcode = buffer[pc].opcode = op_without_pop[opcode];
}
/* _PUSH_FRAME doesn't escape or error, but it
Expand Down