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gh-101907: Removes use of non-standard C++ extension from Include/cpython/code.h by zooba · Pull Request #101909 · python/cpython · GitHub

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gh-101907: Removes use of non-standard C++ extension from Include/cpython/code.h #101909

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gh-101907: Removes use of non-standard C++ extension from Include/cpython/code.h #101909

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1f5d7cb
gh-101907: Removes use of non-standard C++ extension from Include/cpy…
zooba Feb 14, 2023
5005130
Use SET macros instead
zooba Feb 14, 2023
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18 changes: 13 additions & 5 deletions Include/cpython/code.h
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Original file line number Diff line number Diff line change
Expand Up @@ -21,19 +21,27 @@ typedef union {
struct {
uint8_t opcode;
uint8_t oparg;
};
} _op;
} _Py_CODEUNIT;

#define _Py_OPCODE(word) ((word).opcode)
#define _Py_OPARG(word) ((word).oparg)
#define _Py_OPCODE(word) ((word)._op.opcode)
#define _Py_OPARG(word) ((word)._op.oparg)

static inline void
_py_set_opcode(_Py_CODEUNIT *word, uint8_t opcode)
{
word->opcode = opcode;
word->_op.opcode = opcode;
}

#define _Py_SET_OPCODE(word, opcode) _py_set_opocde(&(word), opcode)
#define _Py_SET_OPCODE(word, opcode) _py_set_opcode(&(word), opcode)

static inline void
_py_set_oparg(_Py_CODEUNIT *word, uint8_t oparg)
{
word->_op.oparg = oparg;
}

#define _Py_SET_OPARG(word, opcode) _py_set_oparg(&(word), opcode)

typedef struct {
PyObject *_co_code;
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/C API/2023-02-14-15-53-01.gh-issue-101907.HgF1N2.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Removes use of non-standard C++ extension in public header files.
10 changes: 5 additions & 5 deletions Objects/codeobject.c
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Expand Up @@ -1507,10 +1507,10 @@ deopt_code(_Py_CODEUNIT *instructions, Py_ssize_t len)
_Py_CODEUNIT instruction = instructions[i];
int opcode = _PyOpcode_Deopt[_Py_OPCODE(instruction)];
int caches = _PyOpcode_Caches[opcode];
instructions[i].opcode = opcode;
_Py_SET_OPCODE(instructions[i], opcode);
while (caches--) {
instructions[++i].opcode = CACHE;
instructions[i].oparg = 0;
_Py_SET_OPCODE(instructions[++i], CACHE);
_Py_SET_OPARG(instructions[i], 0);
}
}
}
Expand Down Expand Up @@ -1763,8 +1763,8 @@ code_richcompare(PyObject *self, PyObject *other, int op)
for (int i = 0; i < Py_SIZE(co); i++) {
_Py_CODEUNIT co_instr = _PyCode_CODE(co)[i];
_Py_CODEUNIT cp_instr = _PyCode_CODE(cp)[i];
co_instr.opcode = _PyOpcode_Deopt[_Py_OPCODE(co_instr)];
cp_instr.opcode =_PyOpcode_Deopt[_Py_OPCODE(cp_instr)];
_Py_SET_OPCODE(co_instr, _PyOpcode_Deopt[_Py_OPCODE(co_instr)]);
_Py_SET_OPCODE(cp_instr, _PyOpcode_Deopt[_Py_OPCODE(cp_instr)]);
eq = co_instr.cache == cp_instr.cache;
if (!eq) {
goto unequal;
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6 changes: 3 additions & 3 deletions Objects/genobject.c
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Original file line number Diff line number Diff line change
Expand Up @@ -371,9 +371,9 @@ gen_close(PyGenObject *gen, PyObject *args)
_PyInterpreterFrame *frame = (_PyInterpreterFrame *)gen->gi_iframe;
/* It is possible for the previous instruction to not be a
* YIELD_VALUE if the debugger has changed the lineno. */
if (err == 0 && frame->prev_instr->opcode == YIELD_VALUE) {
assert(frame->prev_instr[1].opcode == RESUME);
int exception_handler_depth = frame->prev_instr->oparg;
if (err == 0 && _Py_OPCODE(frame->prev_instr[0]) == YIELD_VALUE) {
assert(_Py_OPCODE(frame->prev_instr[1]) == RESUME);
int exception_handler_depth = _Py_OPCODE(frame->prev_instr[0]);
assert(exception_handler_depth > 0);
/* We can safely ignore the outermost try block
* as it automatically generated to handle
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20 changes: 10 additions & 10 deletions Python/compile.c
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Original file line number Diff line number Diff line change
Expand Up @@ -274,31 +274,31 @@ write_instr(_Py_CODEUNIT *codestr, struct instr *instruction, int ilen)
int caches = _PyOpcode_Caches[opcode];
switch (ilen - caches) {
case 4:
codestr->opcode = EXTENDED_ARG;
codestr->oparg = (oparg >> 24) & 0xFF;
_Py_SET_OPCODE(*codestr, EXTENDED_ARG);
_Py_SET_OPARG(*codestr, (oparg >> 24) & 0xFF);
codestr++;
/* fall through */
case 3:
codestr->opcode = EXTENDED_ARG;
codestr->oparg = (oparg >> 16) & 0xFF;
_Py_SET_OPCODE(*codestr, EXTENDED_ARG);
_Py_SET_OPARG(*codestr, (oparg >> 16) & 0xFF);
codestr++;
/* fall through */
case 2:
codestr->opcode = EXTENDED_ARG;
codestr->oparg = (oparg >> 8) & 0xFF;
_Py_SET_OPCODE(*codestr, EXTENDED_ARG);
_Py_SET_OPARG(*codestr, (oparg >> 8) & 0xFF);
codestr++;
/* fall through */
case 1:
codestr->opcode = opcode;
codestr->oparg = oparg & 0xFF;
_Py_SET_OPCODE(*codestr, opcode);
_Py_SET_OPARG(*codestr, oparg & 0xFF);
codestr++;
break;
default:
Py_UNREACHABLE();
}
while (caches--) {
codestr->opcode = CACHE;
codestr->oparg = 0;
_Py_SET_OPCODE(*codestr, CACHE);
_Py_SET_OPARG(*codestr, 0);
codestr++;
}
}
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16 changes: 8 additions & 8 deletions Python/specialize.c
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Original file line number Diff line number Diff line change
Expand Up @@ -291,31 +291,31 @@ _PyCode_Quicken(PyCodeObject *code)
}
switch (previous_opcode << 8 | opcode) {
case LOAD_CONST << 8 | LOAD_FAST:
instructions[i - 1].opcode = LOAD_CONST__LOAD_FAST;
_Py_SET_OPCODE(instructions[i - 1], LOAD_CONST__LOAD_FAST);
break;
case LOAD_FAST << 8 | LOAD_CONST:
instructions[i - 1].opcode = LOAD_FAST__LOAD_CONST;
_Py_SET_OPCODE(instructions[i - 1], LOAD_FAST__LOAD_CONST);
break;
case LOAD_FAST << 8 | LOAD_FAST:
instructions[i - 1].opcode = LOAD_FAST__LOAD_FAST;
_Py_SET_OPCODE(instructions[i - 1], LOAD_FAST__LOAD_FAST);
break;
case STORE_FAST << 8 | LOAD_FAST:
instructions[i - 1].opcode = STORE_FAST__LOAD_FAST;
_Py_SET_OPCODE(instructions[i - 1], STORE_FAST__LOAD_FAST);
break;
case STORE_FAST << 8 | STORE_FAST:
instructions[i - 1].opcode = STORE_FAST__STORE_FAST;
_Py_SET_OPCODE(instructions[i - 1], STORE_FAST__STORE_FAST);
break;
case COMPARE_OP << 8 | POP_JUMP_IF_TRUE:
case COMPARE_OP << 8 | POP_JUMP_IF_FALSE:
{
int oparg = instructions[i - 1 - INLINE_CACHE_ENTRIES_COMPARE_OP].oparg;
int oparg = _Py_OPARG(instructions[i - 1 - INLINE_CACHE_ENTRIES_COMPARE_OP]);
assert((oparg >> 4) <= Py_GE);
int mask = compare_masks[oparg >> 4];
if (opcode == POP_JUMP_IF_FALSE) {
mask = mask ^ 0xf;
}
instructions[i - 1 - INLINE_CACHE_ENTRIES_COMPARE_OP].opcode = COMPARE_AND_BRANCH;
instructions[i - 1 - INLINE_CACHE_ENTRIES_COMPARE_OP].oparg = (oparg & 0xf0) | mask;
_Py_SET_OPCODE(instructions[i - 1 - INLINE_CACHE_ENTRIES_COMPARE_OP], COMPARE_AND_BRANCH);
_Py_SET_OPARG(instructions[i - 1 - INLINE_CACHE_ENTRIES_COMPARE_OP], (oparg & 0xf0) | mask);
break;
}
}
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