8000 GH-115457: Support splitting and replication of micro ops. by markshannon · Pull Request #115558 · python/cpython · GitHub
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GH-115457: Support splitting and replication of micro ops. #115558

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Merged
merged 6 commits into from
Feb 20, 2024
Merged

GH-115457: Support splitting and replication of micro ops. #115558

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2e5a158
Split micro-ops if behavior depends on oparg&1
markshannon Feb 14, 2024
d879778
Don't generate C code for split uops
markshannon Feb 14, 2024
472a3d6
Add replicate annotation
markshannon Feb 15, 2024
97cf57e
Do not emit abstract interpreter code for replica uops
markshannon Feb 15, 2024
f99858c
Address review comments
markshannon Feb 15, 2024
9ec72e5
Merge branch 'main' into split-on-oparg-1
markshannon Feb 15, 2024
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Merge branch 'main' into split-on-oparg-1
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@markshannon
markshannon committed Feb 15, 2024
commit 9ec72e51a68857804e30963528b30df83e8d26d5
7 changes: 4 additions & 3 deletions Include/internal/pycore_opcode_metadata.h
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190 changes: 96 additions & 94 deletions Include/internal/pycore_uop_ids.h
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1 change: 1 addition & 0 deletions Tools/cases_generator/analyzer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ class Properties:
uses_co_names: bool
uses_locals: bool
has_free: bool
side_exit: bool
pure: bool
passthrough: bool
oparg_and_1: bool = False
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16 changes: 16 additions & 0 deletions Tools/cases_generator/tier2_generator.py
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Expand Up @@ -103,6 +103,21 @@ def tier2_replace_deopt(
out.emit(") goto deoptimize;\n")


def tier2_replace_exit_if(
out: CWriter,
tkn: Token,
tkn_iter: Iterator[Token],
uop: Uop,
unused: Stack,
inst: Instruction | None,
) -> None:
out.emit_at("if ", tkn)
out.emit(next(tkn_iter))
emit_to(out, tkn_iter, "RPAREN")
next(tkn_iter) # Semi colon
out.emit(") goto side_exit;\n")


def tier2_replace_oparg(
out: CWriter,
tkn: Token,
Expand All @@ -128,6 +143,7 @@ def tier2_replace_oparg(
TIER2_REPLACEMENT_FUNCTIONS["ERROR_IF"] = tier2_replace_error
TIER2_REPLACEMENT_FUNCTIONS["DEOPT_IF"] = tier2_replace_deopt
TIER2_REPLACEMENT_FUNCTIONS["oparg"] = tier2_replace_oparg
TIER2_REPLACEMENT_FUNCTIONS["EXIT_IF"] = tier2_replace_exit_if


def write_uop(uop: Uop, out: CWriter, stack: Stack) -> None:
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