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gh-104909: Implement conditional stack effects for macros #105748

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Merged
gvanrossum merged 14 commits into from
Jun 14, 2023
Merged

gh-104909: Implement conditional stack effects for macros #105748

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4291adf
Fix types and bug for pseudos
gvanrossum Jun 12, 2023
eee069c
Example: macrofy _LOAD_GLOBAL_BUILTIN
gvanrossum Jun 13, 2023
3bb5557
Fix conditional stack output effect metadata
gvanrossum Jun 13, 2023
035d13b
Attempt adding conditionals to mac.stack
gvanrossum Jun 13, 2023
c4b88a9
Fix macros with conditional output effect
gvanrossum Jun 13, 2023
457e501
Revert "Example: macrofy _LOAD_GLOBAL_BUILTIN"
gvanrossum Jun 13, 2023
dec34ef
Regenerate after reverting example
gvanrossum Jun 13, 2023
b82c4b8
Merge remote-tracking branch 'origin/main' into cond-effect-2
gvanrossum Jun 13, 2023
63e498e
Rename unconditional to init_null (with reverted sense)
gvanrossum Jun 13, 2023
f9e11e0
Add test; fix stack effect bug
gvanrossum Jun 14, 2023
958e9f1
Merge branch 'main' into cond-effect-2
gvanrossum Jun 14, 2023
fb905d7
Make the test more thorough
gvanrossum Jun 14, 2023
846a161
Better way to solve the 'init_null' problem
gvanrossum Jun 14, 2023
3551576
Merge branch 'main' into cond-effect-2
gvanrossum Jun 14, 2023
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Example: macrofy _LOAD_GLOBAL_BUILTIN
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@gvanrossum
gvanrossum committed Jun 13, 2023
commit eee069c8207cd882716caa2a1905d95944ef6b47
4 changes: 3 additions & 1 deletion Python/bytecodes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1344,7 +1344,7 @@ dummy_func(
null = NULL;
}

inst(LOAD_GLOBAL_BUILTIN, (unused/1, index/1, mod_version/1, bltn_version/1 -- null if (oparg & 1), res)) {
op(_LOAD_GLOBAL_BUILTIN, (unused/1, index/1, mod_version/1, bltn_version/1 -- null if (oparg & 1), res)) {
DEOPT_IF(!PyDict_CheckExact(GLOBALS()), LOAD_GLOBAL);
DEOPT_IF(!PyDict_CheckExact(BUILTINS()), LOAD_GLOBAL);
PyDictObject *mdict = (PyDictObject *)GLOBALS();
Expand All @@ -1361,6 +1361,8 @@ dummy_func(
null = NULL;
}

macro(LOAD_GLOBAL_BUILTIN) = _LOAD_GLOBAL_BUILTIN;

inst(DELETE_FAST, (--)) {
PyObject *v = GETLOCAL(oparg);
ERROR_IF(v == NULL, unbound_local_error);
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