https://github.com/python/cpython/commit/10fbcd6c5dc25bfe14e02fd93ef93498a393860c
commit: 10fbcd6c5dc25bfe14e02fd93ef93498a393860c
branch: main
author: Mark Shannon <[email protected]>
committer: markshannon <[email protected]>
date: 2024-02-27T10:51:26Z
summary:

GH-115816: Make tier2 optimizer symbols testable, and add a few tests. 
(GH-115953)

files:
A Python/optimizer_symbols.c
M Include/internal/pycore_optimizer.h
M Lib/test/test_generated_cases.py
M Lib/test/test_optimizer.py
M Makefile.pre.in
M Modules/_testinternalcapi.c
M PCbuild/_freeze_module.vcxproj
M PCbuild/_freeze_module.vcxproj.filters
M PCbuild/pythoncore.vcxproj
M PCbuild/pythoncore.vcxproj.filters
M Python/optimizer_analysis.c
M Python/optimizer_bytecodes.c
M Python/optimizer_cases.c.h
M Tools/c-analyzer/cpython/ignored.tsv
M Tools/cases_generator/optimizer_generator.py

diff --git a/Include/internal/pycore_optimizer.h 
b/Include/internal/pycore_optimizer.h
index eee71c700d4904..267cbf1265c420 100644
--- a/Include/internal/pycore_optimizer.h
+++ b/Include/internal/pycore_optimizer.h
@@ -9,6 +9,7 @@ extern "C" {
 #endif
 
 #include "pycore_uop_ids.h"
+#include <stdbool.h>
 
 // This is the length of the trace we project initially.
 #define UOP_MAX_TRACE_LENGTH 512
@@ -25,6 +26,90 @@ extern PyTypeObject _PyDefaultOptimizer_Type;
 extern PyTypeObject _PyUOpExecutor_Type;
 extern PyTypeObject _PyUOpOptimizer_Type;
 
+/* Symbols */
+
+struct _Py_UOpsSymType {
+    int flags;
+    PyTypeObject *typ;
+    // constant propagated value (might be NULL)
+    PyObject *const_val;
+};
+
+// Holds locals, stack, locals, stack ... co_consts (in that order)
+#define MAX_ABSTRACT_INTERP_SIZE 4096
+
+#define OVERALLOCATE_FACTOR 5
+
+#define TY_ARENA_SIZE (UOP_MAX_TRACE_LENGTH * OVERALLOCATE_FACTOR)
+
+// Need extras for root frame and for overflow frame (see TRACE_STACK_PUSH())
+#define MAX_ABSTRACT_FRAME_DEPTH (TRACE_STACK_SIZE + 2)
+
+typedef struct _Py_UOpsSymType _Py_UOpsSymType;
+
+struct _Py_UOpsAbstractFrame {
+    // Max stacklen
+    int stack_len;
+    int locals_len;
+
+    _Py_UOpsSymType **stack_pointer;
+    _Py_UOpsSymType **stack;
+    _Py_UOpsSymType **locals;
+};
+
+typedef struct _Py_UOpsAbstractFrame _Py_UOpsAbstractFrame;
+
+typedef struct ty_arena {
+    int ty_curr_number;
+    int ty_max_number;
+    _Py_UOpsSymType arena[TY_ARENA_SIZE];
+} ty_arena;
+
+struct _Py_UOpsAbstractInterpContext {
+    PyObject_HEAD
+    // The current "executing" frame.
+    _Py_UOpsAbstractFrame *frame;
+    _Py_UOpsAbstractFrame frames[MAX_ABSTRACT_FRAME_DEPTH];
+    int curr_frame_depth;
+
+    // Arena for the symbolic types.
+    ty_arena t_arena;
+
+    _Py_UOpsSymType **n_consumed;
+    _Py_UOpsSymType **limit;
+    _Py_UOpsSymType *locals_and_stack[MAX_ABSTRACT_INTERP_SIZE];
+};
+
+typedef struct _Py_UOpsAbstractInterpContext _Py_UOpsAbstractInterpContext;
+
+extern bool _Py_uop_sym_is_null(_Py_UOpsSymType *sym);
+extern bool _Py_uop_sym_is_not_null(_Py_UOpsSymType *sym);
+extern bool _Py_uop_sym_is_const(_Py_UOpsSymType *sym);
+extern PyObject *_Py_uop_sym_get_const(_Py_UOpsSymType *sym);
+extern _Py_UOpsSymType *_Py_uop_sym_new_unknown(_Py_UOpsAbstractInterpContext 
*ctx);
+extern _Py_UOpsSymType *_Py_uop_sym_new_not_null(_Py_UOpsAbstractInterpContext 
*ctx);
+extern _Py_UOpsSymType *_Py_uop_sym_new_type(
+    _Py_UOpsAbstractInterpContext *ctx, PyTypeObject *typ);
+extern _Py_UOpsSymType *_Py_uop_sym_new_const(_Py_UOpsAbstractInterpContext 
*ctx, PyObject *const_val);
+extern _Py_UOpsSymType *_Py_uop_sym_new_null(_Py_UOpsAbstractInterpContext 
*ctx);
+extern bool _Py_uop_sym_matches_type(_Py_UOpsSymType *sym, PyTypeObject *typ);
+extern void _Py_uop_sym_set_null(_Py_UOpsSymType *sym);
+extern void _Py_uop_sym_set_type(_Py_UOpsSymType *sym, PyTypeObject *tp);
+
+extern int _Py_uop_abstractcontext_init(_Py_UOpsAbstractInterpContext *ctx);
+extern void _Py_uop_abstractcontext_fini(_Py_UOpsAbstractInterpContext *ctx);
+
+extern _Py_UOpsAbstractFrame *_Py_uop_ctx_frame_new(
+    _Py_UOpsAbstractInterpContext *ctx,
+    PyCodeObject *co,
+    _Py_UOpsSymType **localsplus_start,
+    int n_locals_already_filled,
+    int curr_stackentries);
+extern int _Py_uop_ctx_frame_pop(_Py_UOpsAbstractInterpContext *ctx);
+
+PyAPI_FUNC(PyObject *)
+_Py_uop_symbols_test(PyObject *self, PyObject *ignored);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/Lib/test/test_generated_cases.py b/Lib/test/test_generated_cases.py
index 6a5586822c2491..601775817043fe 100644
--- a/Lib/test/test_generated_cases.py
+++ b/Lib/test/test_generated_cases.py
@@ -900,7 +900,7 @@ def test_overridden_abstract_args(self):
 
         case OP2: {
             _Py_UOpsSymType *out;
-            out = sym_new_unknown(ctx);
+            out = _Py_uop_sym_new_unknown(ctx);
             if (out == NULL) goto out_of_space;
             stack_pointer[-1] = out;
             break;
@@ -925,7 +925,7 @@ def test_no_overridden_case(self):
         output = """
         case OP: {
             _Py_UOpsSymType *out;
-            out = sym_new_unknown(ctx);
+            out = _Py_uop_sym_new_unknown(ctx);
             if (out == NULL) goto out_of_space;
             stack_pointer[-1] = out;
             break;
diff --git a/Lib/test/test_optimizer.py b/Lib/test/test_optimizer.py
index dfea8be3c6956f..899a4507317334 100644
--- a/Lib/test/test_optimizer.py
+++ b/Lib/test/test_optimizer.py
@@ -77,5 +77,12 @@ def func(x=0):
                 
_testinternalcapi.get_rare_event_counters()["func_modification"]
             )
 
+
+class TestOptimizerSymbols(unittest.TestCase):
+
+    def test_optimizer_symbols(self):
+        _testinternalcapi.uop_symbols_test()
+
+
 if __name__ == "__main__":
     unittest.main()
diff --git a/Makefile.pre.in b/Makefile.pre.in
index e4c64aea80d22c..7533a49b4392f0 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -446,6 +446,7 @@ PYTHON_OBJS=        \
                Python/object_stack.o \
                Python/optimizer.o \
                Python/optimizer_analysis.o \
+               Python/optimizer_symbols.o \
                Python/parking_lot.o \
                Python/pathconfig.o \
                Python/preconfig.o \
diff --git a/Modules/_testinternalcapi.c b/Modules/_testinternalcapi.c
index 5b714ca3f3dc33..9c6970d48ae6f7 100644
--- a/Modules/_testinternalcapi.c
+++ b/Modules/_testinternalcapi.c
@@ -24,6 +24,7 @@
 #include "pycore_interp.h"        // _PyInterpreterState_GetConfigCopy()
 #include "pycore_long.h"          // _PyLong_Sign()
 #include "pycore_object.h"        // _PyObject_IsFreed()
+#include "pycore_optimizer.h"     // _Py_UOpsSymType, etc.
 #include "pycore_pathconfig.h"    // _PyPathConfig_ClearGlobal()
 #include "pycore_pyerrors.h"      // _PyErr_ChainExceptions1()
 #include "pycore_pystate.h"       // _PyThreadState_GET()
@@ -1677,7 +1678,6 @@ get_py_thread_id(PyObject *self, PyObject 
*Py_UNUSED(ignored))
 }
 #endif
 
-
 static PyMethodDef module_functions[] = {
     {"get_configs", get_configs, METH_NOARGS},
     {"get_recursion_depth", get_recursion_depth, METH_NOARGS},
@@ -1747,6 +1747,7 @@ static PyMethodDef module_functions[] = {
 #ifdef Py_GIL_DISABLED
     {"py_thread_id", get_py_thread_id, METH_NOARGS},
 #endif
+    {"uop_symbols_test", _Py_uop_symbols_test, METH_NOARGS},
     {NULL, NULL} /* sentinel */
 };
 
diff --git a/PCbuild/_freeze_module.vcxproj b/PCbuild/_freeze_module.vcxproj
index 00ad3e2472af04..3a8a417a6bf47a 100644
--- a/PCbuild/_freeze_module.vcxproj
+++ b/PCbuild/_freeze_module.vcxproj
@@ -235,6 +235,7 @@
     <ClCompile Include="..\Python\object_stack.c" />
     <ClCompile Include="..\Python\optimizer.c" />
     <ClCompile Include="..\Python\optimizer_analysis.c" />
+    <ClCompile Include="..\Python\optimizer_symbols.c" />
     <ClCompile Include="..\Python\parking_lot.c" />
     <ClCompile Include="..\Python\pathconfig.c" />
     <ClCompile Include="..\Python\perf_trampoline.c" />
diff --git a/PCbuild/_freeze_module.vcxproj.filters 
b/PCbuild/_freeze_module.vcxproj.filters
index aea5f730607658..5b34440af9322b 100644
--- a/PCbuild/_freeze_module.vcxproj.filters
+++ b/PCbuild/_freeze_module.vcxproj.filters
@@ -310,6 +310,9 @@
     <ClCompile Include="..\Python\optimizer_analysis.c">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\Python\optimizer_symbols.c">
+      <Filter>Python</Filter>
+    </ClCompile>
     <ClCompile Include="..\Parser\parser.c">
       <Filter>Source Files</Filter>
     </ClCompile>
diff --git a/PCbuild/pythoncore.vcxproj b/PCbuild/pythoncore.vcxproj
index ef21f85107bc32..88a4a7c9564309 100644
--- a/PCbuild/pythoncore.vcxproj
+++ b/PCbuild/pythoncore.vcxproj
@@ -601,6 +601,7 @@
     <ClCompile Include="..\Python\object_stack.c" />
     <ClCompile Include="..\Python\optimizer.c" />
     <ClCompile Include="..\Python\optimizer_analysis.c" />
+    <ClCompile Include="..\Python\optimizer_symbols.c" />
     <ClCompile Include="..\Python\parking_lot.c" />
     <ClCompile Include="..\Python\pathconfig.c" />
     <ClCompile Include="..\Python\perf_trampoline.c" />
diff --git a/PCbuild/pythoncore.vcxproj.filters 
b/PCbuild/pythoncore.vcxproj.filters
index ffe93dc787a8b8..27bd1121663398 100644
--- a/PCbuild/pythoncore.vcxproj.filters
+++ b/PCbuild/pythoncore.vcxproj.filters
@@ -1382,6 +1382,9 @@
     <ClCompile Include="..\Python\optimizer_analysis.c">
       <Filter>Python</Filter>
     </ClCompile>
+    <ClCompile Include="..\Python\optimizer_symbols.c">
+      <Filter>Python</Filter>
+    </ClCompile>
     <ClCompile Include="..\Python\parking_lot.c">
       <Filter>Python</Filter>
     </ClCompile>
diff --git a/Python/optimizer_analysis.c b/Python/optimizer_analysis.c
index e9751291e2fd5a..6b2aec8385824d 100644
--- a/Python/optimizer_analysis.c
+++ b/Python/optimizer_analysis.c
@@ -33,16 +33,6 @@
 #include <stdint.h>
 #include <stddef.h>
 
-// Holds locals, stack, locals, stack ... co_consts (in that order)
-#define MAX_ABSTRACT_INTERP_SIZE 4096
-
-#define OVERALLOCATE_FACTOR 5
-
-#define TY_ARENA_SIZE (UOP_MAX_TRACE_LENGTH * OVERALLOCATE_FACTOR)
-
-// Need extras for root frame and for overflow frame (see TRACE_STACK_PUSH())
-#define MAX_ABSTRACT_FRAME_DEPTH (TRACE_STACK_SIZE + 2)
-
 #ifdef Py_DEBUG
     extern const char *_PyUOpName(int index);
     static const char *const DEBUG_ENV = "PYTHON_OPT_DEBUG";
@@ -61,318 +51,6 @@
 #endif
 
 
-// Flags for below.
-#define KNOWN      1 << 0
-#define TRUE_CONST 1 << 1
-#define IS_NULL    1 << 2
-#define NOT_NULL   1 << 3
-
-typedef struct {
-    int flags;
-    PyTypeObject *typ;
-    // constant propagated value (might be NULL)
-    PyObject *const_val;
-} _Py_UOpsSymType;
-
-
-typedef struct _Py_UOpsAbstractFrame {
-    // Max stacklen
-    int stack_len;
-    int locals_len;
-
-    _Py_UOpsSymType **stack_pointer;
-    _Py_UOpsSymType **stack;
-    _Py_UOpsSymType **locals;
-} _Py_UOpsAbstractFrame;
-
-
-typedef struct ty_arena {
-    int ty_curr_number;
-    int ty_max_number;
-    _Py_UOpsSymType arena[TY_ARENA_SIZE];
-} ty_arena;
-
-// Tier 2 types meta interpreter
-typedef struct _Py_UOpsAbstractInterpContext {
-    PyObject_HEAD
-    // The current "executing" frame.
-    _Py_UOpsAbstractFrame *frame;
-    _Py_UOpsAbstractFrame frames[MAX_ABSTRACT_FRAME_DEPTH];
-    int curr_frame_depth;
-
-    // Arena for the symbolic types.
-    ty_arena t_arena;
-
-    _Py_UOpsSymType **n_consumed;
-    _Py_UOpsSymType **limit;
-    _Py_UOpsSymType *locals_and_stack[MAX_ABSTRACT_INTERP_SIZE];
-} _Py_UOpsAbstractInterpContext;
-
-static inline _Py_UOpsSymType* sym_new_unknown(_Py_UOpsAbstractInterpContext 
*ctx);
-
-// 0 on success, -1 on error.
-static _Py_UOpsAbstractFrame *
-ctx_frame_new(
-    _Py_UOpsAbstractInterpContext *ctx,
-    PyCodeObject *co,
-    _Py_UOpsSymType **localsplus_start,
-    int n_locals_already_filled,
-    int curr_stackentries
-)
-{
-    assert(ctx->curr_frame_depth < MAX_ABSTRACT_FRAME_DEPTH);
-    _Py_UOpsAbstractFrame *frame = &ctx->frames[ctx->curr_frame_depth];
-
-    frame->stack_len = co->co_stacksize;
-    frame->locals_len = co->co_nlocalsplus;
-
-    frame->locals = localsplus_start;
-    frame->stack = frame->locals + co->co_nlocalsplus;
-    frame->stack_pointer = frame->stack + curr_stackentries;
-    ctx->n_consumed = localsplus_start + (co->co_nlocalsplus + 
co->co_stacksize);
-    if (ctx->n_consumed >= ctx->limit) {
-        return NULL;
-    }
-
-
-    // Initialize with the initial state of all local variables
-    for (int i = n_locals_already_filled; i < co->co_nlocalsplus; i++) {
-        _Py_UOpsSymType *local = sym_new_unknown(ctx);
-        if (local == NULL) {
-            return NULL;
-        }
-        frame->locals[i] = local;
-    }
-
-
-    // Initialize the stack as well
-    for (int i = 0; i < curr_stackentries; i++) {
-        _Py_UOpsSymType *stackvar = sym_new_unknown(ctx);
-        if (stackvar == NULL) {
-            return NULL;
-        }
-        frame->stack[i] = stackvar;
-    }
-
-    return frame;
-}
-
-static void
-abstractcontext_fini(_Py_UOpsAbstractInterpContext *ctx)
-{
-    if (ctx == NULL) {
-        return;
-    }
-    ctx->curr_frame_depth = 0;
-    int tys = ctx->t_arena.ty_curr_number;
-    for (int i = 0; i < tys; i++) {
-        Py_CLEAR(ctx->t_arena.arena[i].const_val);
-    }
-}
-
-static int
-abstractcontext_init(
-    _Py_UOpsAbstractInterpContext *ctx,
-    PyCodeObject *co,
-    int curr_stacklen,
-    int ir_entries
-)
-{
-    ctx->limit = ctx->locals_and_stack + MAX_ABSTRACT_INTERP_SIZE;
-    ctx->n_consumed = ctx->locals_and_stack;
-#ifdef Py_DEBUG // Aids debugging a little. There should never be NULL in the 
abstract interpreter.
-    for (int i = 0 ; i < MAX_ABSTRACT_INTERP_SIZE; i++) {
-        ctx->locals_and_stack[i] = NULL;
-    }
-#endif
-
-    // Setup the arena for sym expressions.
-    ctx->t_arena.ty_curr_number = 0;
-    ctx->t_arena.ty_max_number = TY_ARENA_SIZE;
-
-    // Frame setup
-    ctx->curr_frame_depth = 0;
-    _Py_UOpsAbstractFrame *frame = ctx_frame_new(ctx, co, ctx->n_consumed, 0, 
curr_stacklen);
-    if (frame == NULL) {
-        return -1;
-    }
-    ctx->curr_frame_depth++;
-    ctx->frame = frame;
-    return 0;
-}
-
-
-static int
-ctx_frame_pop(
-    _Py_UOpsAbstractInterpContext *ctx
-)
-{
-    _Py_UOpsAbstractFrame *frame = ctx->frame;
-
-    ctx->n_consumed = frame->locals;
-    ctx->curr_frame_depth--;
-    assert(ctx->curr_frame_depth >= 1);
-    ctx->frame = &ctx->frames[ctx->curr_frame_depth - 1];
-
-    return 0;
-}
-
-
-// Takes a borrowed reference to const_val, turns that into a strong reference.
-static _Py_UOpsSymType*
-sym_new(_Py_UOpsAbstractInterpContext *ctx,
-                               PyObject *const_val)
-{
-    _Py_UOpsSymType *self = &ctx->t_arena.arena[ctx->t_arena.ty_curr_number];
-    if (ctx->t_arena.ty_curr_number >= ctx->t_arena.ty_max_number) {
-        OPT_STAT_INC(optimizer_failure_reason_no_memory);
-        DPRINTF(1, "out of space for symbolic expression type\n");
-        return NULL;
-    }
-    ctx->t_arena.ty_curr_number++;
-    self->const_val = NULL;
-    self->typ = NULL;
-    self->flags = 0;
-
-    if (const_val != NULL) {
-        self->const_val = Py_NewRef(const_val);
-    }
-
-    return self;
-}
-
-static inline void
-sym_set_flag(_Py_UOpsSymType *sym, int flag)
-{
-    sym->flags |= flag;
-}
-
-static inline bool
-sym_has_flag(_Py_UOpsSymType *sym, int flag)
-{
-    return (sym->flags & flag) != 0;
-}
-
-static inline bool
-sym_is_known(_Py_UOpsSymType *sym)
-{
-    return sym_has_flag(sym, KNOWN);
-}
-
-static inline bool
-sym_is_not_null(_Py_UOpsSymType *sym)
-{
-    return (sym->flags & (IS_NULL | NOT_NULL)) == NOT_NULL;
-}
-
-static inline bool
-sym_is_null(_Py_UOpsSymType *sym)
-{
-    return (sym->flags & (IS_NULL | NOT_NULL)) == IS_NULL;
-}
-
-static inline bool
-sym_is_const(_Py_UOpsSymType *sym)
-{
-    return (sym->flags & TRUE_CONST) != 0;
-}
-
-static inline PyObject *
-sym_get_const(_Py_UOpsSymType *sym)
-{
-    assert(sym_is_const(sym));
-    assert(sym->const_val);
-    return sym->const_val;
-}
-
-static inline void
-sym_set_type(_Py_UOpsSymType *sym, PyTypeObject *tp)
-{
-    assert(PyType_Check(tp));
-    sym->typ = tp;
-    sym_set_flag(sym, KNOWN);
-    sym_set_flag(sym, NOT_NULL);
-}
-
-static inline void
-sym_set_null(_Py_UOpsSymType *sym)
-{
-    sym_set_flag(sym, IS_NULL);
-    sym_set_flag(sym, KNOWN);
-}
-
-
-static inline _Py_UOpsSymType*
-sym_new_unknown(_Py_UOpsAbstractInterpContext *ctx)
-{
-    return sym_new(ctx,NULL);
-}
-
-static inline _Py_UOpsSymType*
-sym_new_known_notnull(_Py_UOpsAbstractInterpContext *ctx)
-{
-    _Py_UOpsSymType *res = sym_new_unknown(ctx);
-    if (res == NULL) {
-        return NULL;
-    }
-    sym_set_flag(res, KNOWN);
-    sym_set_flag(res, NOT_NULL);
-    return res;
-}
-
-static inline _Py_UOpsSymType*
-sym_new_known_type(_Py_UOpsAbstractInterpContext *ctx,
-                      PyTypeObject *typ)
-{
-    _Py_UOpsSymType *res = sym_new(ctx,NULL);
-    if (res == NULL) {
-        return NULL;
-    }
-    sym_set_type(res, typ);
-    return res;
-}
-
-// Takes a borrowed reference to const_val.
-static inline _Py_UOpsSymType*
-sym_new_const(_Py_UOpsAbstractInterpContext *ctx, PyObject *const_val)
-{
-    assert(const_val != NULL);
-    _Py_UOpsSymType *temp = sym_new(
-        ctx,
-        const_val
-    );
-    if (temp == NULL) {
-        return NULL;
-    }
-    sym_set_type(temp, Py_TYPE(const_val));
-    sym_set_flag(temp, TRUE_CONST);
-    sym_set_flag(temp, KNOWN);
-    sym_set_flag(temp, NOT_NULL);
-    return temp;
-}
-
-static _Py_UOpsSymType*
-sym_new_null(_Py_UOpsAbstractInterpContext *ctx)
-{
-    _Py_UOpsSymType *null_sym = sym_new_unknown(ctx);
-    if (null_sym == NULL) {
-        return NULL;
-    }
-    sym_set_null(null_sym);
-    return null_sym;
-}
-
-
-static inline bool
-sym_matches_type(_Py_UOpsSymType *sym, PyTypeObject *typ)
-{
-    assert(typ == NULL || PyType_Check(typ));
-    if (!sym_has_flag(sym, KNOWN)) {
-        return false;
-    }
-    return sym->typ == typ;
-}
-
 
 static inline bool
 op_is_end(uint32_t opcode)
@@ -599,8 +277,8 @@ remove_globals(_PyInterpreterFrame *frame, 
_PyUOpInstruction *buffer,
 
 #define _LOAD_ATTR_NOT_NULL \
     do {                    \
-    OUT_OF_SPACE_IF_NULL(attr = sym_new_known_notnull(ctx)); \
-    OUT_OF_SPACE_IF_NULL(null = sym_new_null(ctx)); \
+    OUT_OF_SPACE_IF_NULL(attr = _Py_uop_sym_new_not_null(ctx)); \
+    OUT_OF_SPACE_IF_NULL(null = _Py_uop_sym_new_null(ctx)); \
     } while (0);
 
 
@@ -618,12 +296,15 @@ optimize_uops(
     _Py_UOpsAbstractInterpContext context;
     _Py_UOpsAbstractInterpContext *ctx = &context;
 
-    if (abstractcontext_init(
-        ctx,
-        co, curr_stacklen,
-        trace_len) < 0) {
+    if (_Py_uop_abstractcontext_init(ctx) < 0) {
         goto out_of_space;
     }
+    _Py_UOpsAbstractFrame *frame = _Py_uop_ctx_frame_new(ctx, co, 
ctx->n_consumed, 0, curr_stacklen);
+    if (frame == NULL) {
+        return -1;
+    }
+    ctx->curr_frame_depth++;
+    ctx->frame = frame;
 
     for (_PyUOpInstruction *this_instr = trace;
          this_instr < trace + trace_len && !op_is_end(this_instr->opcode);
@@ -650,17 +331,17 @@ optimize_uops(
         assert(STACK_LEVEL() >= 0);
     }
 
-    abstractcontext_fini(ctx);
+    _Py_uop_abstractcontext_fini(ctx);
     return 1;
 
 out_of_space:
     DPRINTF(1, "Out of space in abstract interpreter\n");
-    abstractcontext_fini(ctx);
+    _Py_uop_abstractcontext_fini(ctx);
     return 0;
 
 error:
     DPRINTF(1, "Encountered error in abstract interpreter\n");
-    abstractcontext_fini(ctx);
+    _Py_uop_abstractcontext_fini(ctx);
     return 0;
 }
 
diff --git a/Python/optimizer_bytecodes.c b/Python/optimizer_bytecodes.c
index b9afd3089e1077..e6e41f8968eaf3 100644
--- a/Python/optimizer_bytecodes.c
+++ b/Python/optimizer_bytecodes.c
@@ -33,7 +33,7 @@ dummy_func(void) {
     op(_LOAD_FAST_CHECK, (-- value)) {
         value = GETLOCAL(oparg);
         // We guarantee this will error - just bail and don't optimize it.
-        if (sym_is_null(value)) {
+        if (_Py_uop_sym_is_null(value)) {
             goto out_of_space;
         }
     }
@@ -45,7 +45,7 @@ dummy_func(void) {
     op(_LOAD_FAST_AND_CLEAR, (-- value)) {
         value = GETLOCAL(oparg);
         _Py_UOpsSymType *temp;
-        OUT_OF_SPACE_IF_NULL(temp = sym_new_null(ctx));
+        OUT_OF_SPACE_IF_NULL(temp = _Py_uop_sym_new_null(ctx));
         GETLOCAL(oparg) = temp;
     }
 
@@ -54,147 +54,147 @@ dummy_func(void) {
     }
 
     op(_PUSH_NULL, (-- res)) {
-        res = sym_new_null(ctx);
+        res = _Py_uop_sym_new_null(ctx);
         if (res == NULL) {
             goto out_of_space;
         };
     }
 
     op(_GUARD_BOTH_INT, (left, right -- left, right)) {
-        if (sym_matches_type(left, &PyLong_Type) &&
-            sym_matches_type(right, &PyLong_Type)) {
+        if (_Py_uop_sym_matches_type(left, &PyLong_Type) &&
+            _Py_uop_sym_matches_type(right, &PyLong_Type)) {
             REPLACE_OP(this_instr, _NOP, 0, 0);
         }
-        sym_set_type(left, &PyLong_Type);
-        sym_set_type(right, &PyLong_Type);
+        _Py_uop_sym_set_type(left, &PyLong_Type);
+        _Py_uop_sym_set_type(right, &PyLong_Type);
     }
 
     op(_GUARD_BOTH_FLOAT, (left, right -- left, right)) {
-        if (sym_matches_type(left, &PyFloat_Type) &&
-            sym_matches_type(right, &PyFloat_Type)) {
+        if (_Py_uop_sym_matches_type(left, &PyFloat_Type) &&
+            _Py_uop_sym_matches_type(right, &PyFloat_Type)) {
             REPLACE_OP(this_instr, _NOP, 0 ,0);
         }
-        sym_set_type(left, &PyFloat_Type);
-        sym_set_type(right, &PyFloat_Type);
+        _Py_uop_sym_set_type(left, &PyFloat_Type);
+        _Py_uop_sym_set_type(right, &PyFloat_Type);
     }
 
     op(_GUARD_BOTH_UNICODE, (left, right -- left, right)) {
-        if (sym_matches_type(left, &PyUnicode_Type) &&
-            sym_matches_type(right, &PyUnicode_Type)) {
+        if (_Py_uop_sym_matches_type(left, &PyUnicode_Type) &&
+            _Py_uop_sym_matches_type(right, &PyUnicode_Type)) {
             REPLACE_OP(this_instr, _NOP, 0 ,0);
         }
-        sym_set_type(left, &PyUnicode_Type);
-        sym_set_type(right, &PyUnicode_Type);
+        _Py_uop_sym_set_type(left, &PyUnicode_Type);
+        _Py_uop_sym_set_type(right, &PyUnicode_Type);
     }
 
     op(_BINARY_OP_ADD_INT, (left, right -- res)) {
-        if (sym_is_const(left) && sym_is_const(right)) {
-            assert(PyLong_CheckExact(sym_get_const(left)));
-            assert(PyLong_CheckExact(sym_get_const(right)));
-            PyObject *temp = _PyLong_Add((PyLongObject *)sym_get_const(left),
-                                         (PyLongObject *)sym_get_const(right));
+        if (_Py_uop_sym_is_const(left) && _Py_uop_sym_is_const(right)) {
+            assert(PyLong_CheckExact(_Py_uop_sym_get_const(left)));
+            assert(PyLong_CheckExact(_Py_uop_sym_get_const(right)));
+            PyObject *temp = _PyLong_Add((PyLongObject 
*)_Py_uop_sym_get_const(left),
+                                         (PyLongObject 
*)_Py_uop_sym_get_const(right));
             if (temp == NULL) {
                 goto error;
             }
-            OUT_OF_SPACE_IF_NULL(res = sym_new_const(ctx, temp));
+            OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_const(ctx, temp));
             // TODO gh-115506:
             // replace opcode with constant propagated one and add tests!
         }
         else {
-            OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, &PyLong_Type));
+            OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_type(ctx, 
&PyLong_Type));
         }
     }
 
     op(_BINARY_OP_SUBTRACT_INT, (left, right -- res)) {
-        if (sym_is_const(left) && sym_is_const(right)) {
-            assert(PyLong_CheckExact(sym_get_const(left)));
-            assert(PyLong_CheckExact(sym_get_const(right)));
-            PyObject *temp = _PyLong_Subtract((PyLongObject 
*)sym_get_const(left),
-                                              (PyLongObject 
*)sym_get_const(right));
+        if (_Py_uop_sym_is_const(left) && _Py_uop_sym_is_const(right)) {
+            assert(PyLong_CheckExact(_Py_uop_sym_get_const(left)));
+            assert(PyLong_CheckExact(_Py_uop_sym_get_const(right)));
+            PyObject *temp = _PyLong_Subtract((PyLongObject 
*)_Py_uop_sym_get_const(left),
+                                              (PyLongObject 
*)_Py_uop_sym_get_const(right));
             if (temp == NULL) {
                 goto error;
             }
-            OUT_OF_SPACE_IF_NULL(res = sym_new_const(ctx, temp));
+            OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_const(ctx, temp));
             // TODO gh-115506:
             // replace opcode with constant propagated one and add tests!
         }
         else {
-            OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, &PyLong_Type));
+            OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_type(ctx, 
&PyLong_Type));
         }
     }
 
     op(_BINARY_OP_MULTIPLY_INT, (left, right -- res)) {
-        if (sym_is_const(left) && sym_is_const(right)) {
-            assert(PyLong_CheckExact(sym_get_const(left)));
-            assert(PyLong_CheckExact(sym_get_const(right)));
-            PyObject *temp = _PyLong_Multiply((PyLongObject 
*)sym_get_const(left),
-                                              (PyLongObject 
*)sym_get_const(right));
+        if (_Py_uop_sym_is_const(left) && _Py_uop_sym_is_const(right)) {
+            assert(PyLong_CheckExact(_Py_uop_sym_get_const(left)));
+            assert(PyLong_CheckExact(_Py_uop_sym_get_const(right)));
+            PyObject *temp = _PyLong_Multiply((PyLongObject 
*)_Py_uop_sym_get_const(left),
+                                              (PyLongObject 
*)_Py_uop_sym_get_const(right));
             if (temp == NULL) {
                 goto error;
             }
-            OUT_OF_SPACE_IF_NULL(res = sym_new_const(ctx, temp));
+            OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_const(ctx, temp));
             // TODO gh-115506:
             // replace opcode with constant propagated one and add tests!
         }
         else {
-            OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, &PyLong_Type));
+            OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_type(ctx, 
&PyLong_Type));
         }
     }
 
     op(_BINARY_OP_ADD_FLOAT, (left, right -- res)) {
-        if (sym_is_const(left) && sym_is_const(right)) {
-            assert(PyFloat_CheckExact(sym_get_const(left)));
-            assert(PyFloat_CheckExact(sym_get_const(right)));
+        if (_Py_uop_sym_is_const(left) && _Py_uop_sym_is_const(right)) {
+            assert(PyFloat_CheckExact(_Py_uop_sym_get_const(left)));
+            assert(PyFloat_CheckExact(_Py_uop_sym_get_const(right)));
             PyObject *temp = PyFloat_FromDouble(
-                PyFloat_AS_DOUBLE(sym_get_const(left)) +
-                PyFloat_AS_DOUBLE(sym_get_const(right)));
+                PyFloat_AS_DOUBLE(_Py_uop_sym_get_const(left)) +
+                PyFloat_AS_DOUBLE(_Py_uop_sym_get_const(right)));
             if (temp == NULL) {
                 goto error;
             }
-            res = sym_new_const(ctx, temp);
+            res = _Py_uop_sym_new_const(ctx, temp);
             // TODO gh-115506:
             // replace opcode with constant propagated one and update tests!
         }
         else {
-            OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, &PyFloat_Type));
+            OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_type(ctx, 
&PyFloat_Type));
         }
     }
 
     op(_BINARY_OP_SUBTRACT_FLOAT, (left, right -- res)) {
-        if (sym_is_const(left) && sym_is_const(right)) {
-            assert(PyFloat_CheckExact(sym_get_const(left)));
-            assert(PyFloat_CheckExact(sym_get_const(right)));
+        if (_Py_uop_sym_is_const(left) && _Py_uop_sym_is_const(right)) {
+            assert(PyFloat_CheckExact(_Py_uop_sym_get_const(left)));
+            assert(PyFloat_CheckExact(_Py_uop_sym_get_const(right)));
             PyObject *temp = PyFloat_FromDouble(
-                PyFloat_AS_DOUBLE(sym_get_const(left)) -
-                PyFloat_AS_DOUBLE(sym_get_const(right)));
+                PyFloat_AS_DOUBLE(_Py_uop_sym_get_const(left)) -
+                PyFloat_AS_DOUBLE(_Py_uop_sym_get_const(right)));
             if (temp == NULL) {
                 goto error;
             }
-            res = sym_new_const(ctx, temp);
+            res = _Py_uop_sym_new_const(ctx, temp);
             // TODO gh-115506:
             // replace opcode with constant propagated one and update tests!
         }
         else {
-            OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, &PyFloat_Type));
+            OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_type(ctx, 
&PyFloat_Type));
         }
     }
 
     op(_BINARY_OP_MULTIPLY_FLOAT, (left, right -- res)) {
-        if (sym_is_const(left) && sym_is_const(right)) {
-            assert(PyFloat_CheckExact(sym_get_const(left)));
-            assert(PyFloat_CheckExact(sym_get_const(right)));
+        if (_Py_uop_sym_is_const(left) && _Py_uop_sym_is_const(right)) {
+            assert(PyFloat_CheckExact(_Py_uop_sym_get_const(left)));
+            assert(PyFloat_CheckExact(_Py_uop_sym_get_const(right)));
             PyObject *temp = PyFloat_FromDouble(
-                PyFloat_AS_DOUBLE(sym_get_const(left)) *
-                PyFloat_AS_DOUBLE(sym_get_const(right)));
+                PyFloat_AS_DOUBLE(_Py_uop_sym_get_const(left)) *
+                PyFloat_AS_DOUBLE(_Py_uop_sym_get_const(right)));
             if (temp == NULL) {
                 goto error;
             }
-            res = sym_new_const(ctx, temp);
+            res = _Py_uop_sym_new_const(ctx, temp);
             // TODO gh-115506:
             // replace opcode with constant propagated one and update tests!
         }
         else {
-            OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, &PyFloat_Type));
+            OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_type(ctx, 
&PyFloat_Type));
         }
     }
 
@@ -205,21 +205,21 @@ dummy_func(void) {
     }
 
     op(_LOAD_CONST_INLINE, (ptr/4 -- value)) {
-        OUT_OF_SPACE_IF_NULL(value = sym_new_const(ctx, ptr));
+        OUT_OF_SPACE_IF_NULL(value = _Py_uop_sym_new_const(ctx, ptr));
     }
 
     op(_LOAD_CONST_INLINE_BORROW, (ptr/4 -- value)) {
-        OUT_OF_SPACE_IF_NULL(value = sym_new_const(ctx, ptr));
+        OUT_OF_SPACE_IF_NULL(value = _Py_uop_sym_new_const(ctx, ptr));
     }
 
     op(_LOAD_CONST_INLINE_WITH_NULL, (ptr/4 -- value, null)) {
-        OUT_OF_SPACE_IF_NULL(value = sym_new_const(ctx, ptr));
-        OUT_OF_SPACE_IF_NULL(null = sym_new_null(ctx));
+        OUT_OF_SPACE_IF_NULL(value = _Py_uop_sym_new_const(ctx, ptr));
+        OUT_OF_SPACE_IF_NULL(null = _Py_uop_sym_new_null(ctx));
     }
 
     op(_LOAD_CONST_INLINE_BORROW_WITH_NULL, (ptr/4 -- value, null)) {
-        OUT_OF_SPACE_IF_NULL(value = sym_new_const(ctx, ptr));
-        OUT_OF_SPACE_IF_NULL(null = sym_new_null(ctx));
+        OUT_OF_SPACE_IF_NULL(value = _Py_uop_sym_new_const(ctx, ptr));
+        OUT_OF_SPACE_IF_NULL(null = _Py_uop_sym_new_null(ctx));
     }
 
 
@@ -240,8 +240,8 @@ dummy_func(void) {
 
     op(_CHECK_ATTR_MODULE, (dict_version/2, owner -- owner)) {
         (void)dict_version;
-        if (sym_is_const(owner)) {
-            PyObject *cnst = sym_get_const(owner);
+        if (_Py_uop_sym_is_const(owner)) {
+            PyObject *cnst = _Py_uop_sym_get_const(owner);
             if (PyModule_CheckExact(cnst)) {
                 PyModuleObject *mod = (PyModuleObject *)cnst;
                 PyObject *dict = mod->md_dict;
@@ -257,23 +257,23 @@ dummy_func(void) {
 
     op(_LOAD_ATTR_MODULE, (index/1, owner -- attr, null if (oparg & 1))) {
         (void)index;
-        OUT_OF_SPACE_IF_NULL(null = sym_new_null(ctx));
+        OUT_OF_SPACE_IF_NULL(null = _Py_uop_sym_new_null(ctx));
         attr = NULL;
         if (this_instr[-1].opcode == _NOP) {
             // Preceding _CHECK_ATTR_MODULE was removed: mod is const and dict 
is watched.
-            assert(sym_is_const(owner));
-            PyModuleObject *mod = (PyModuleObject *)sym_get_const(owner);
+            assert(_Py_uop_sym_is_const(owner));
+            PyModuleObject *mod = (PyModuleObject 
*)_Py_uop_sym_get_const(owner);
             assert(PyModule_CheckExact(mod));
             PyObject *dict = mod->md_dict;
             PyObject *res = convert_global_to_const(this_instr, dict);
             if (res != NULL) {
                 this_instr[-1].opcode = _POP_TOP;
-                OUT_OF_SPACE_IF_NULL(attr = sym_new_const(ctx, res));
+                OUT_OF_SPACE_IF_NULL(attr = _Py_uop_sym_new_const(ctx, res));
             }
         }
         if (attr == NULL) {
             /* No conversion made. We don't know what `attr` is. */
-            OUT_OF_SPACE_IF_NULL(attr = sym_new_known_notnull(ctx));
+            OUT_OF_SPACE_IF_NULL(attr = _Py_uop_sym_new_not_null(ctx));
         }
     }
 
@@ -297,38 +297,38 @@ dummy_func(void) {
 
     op(_LOAD_ATTR_METHOD_WITH_VALUES, (descr/4, owner -- attr, self if (1))) {
         (void)descr;
-        OUT_OF_SPACE_IF_NULL(attr = sym_new_known_notnull(ctx));
+        OUT_OF_SPACE_IF_NULL(attr = _Py_uop_sym_new_not_null(ctx));
         self = owner;
     }
 
     op(_LOAD_ATTR_METHOD_NO_DICT, (descr/4, owner -- attr, self if (1))) {
         (void)descr;
-        OUT_OF_SPACE_IF_NULL(attr = sym_new_known_notnull(ctx));
+        OUT_OF_SPACE_IF_NULL(attr = _Py_uop_sym_new_not_null(ctx));
         self = owner;
     }
 
     op(_LOAD_ATTR_METHOD_LAZY_DICT, (descr/4, owner -- attr, self if (1))) {
         (void)descr;
-        OUT_OF_SPACE_IF_NULL(attr = sym_new_known_notnull(ctx));
+        OUT_OF_SPACE_IF_NULL(attr = _Py_uop_sym_new_not_null(ctx));
         self = owner;
     }
 
     op(_INIT_CALL_BOUND_METHOD_EXACT_ARGS, (callable, unused, unused[oparg] -- 
func, self, unused[oparg])) {
         (void)callable;
-        OUT_OF_SPACE_IF_NULL(func = sym_new_known_notnull(ctx));
-        OUT_OF_SPACE_IF_NULL(self = sym_new_known_notnull(ctx));
+        OUT_OF_SPACE_IF_NULL(func = _Py_uop_sym_new_not_null(ctx));
+        OUT_OF_SPACE_IF_NULL(self = _Py_uop_sym_new_not_null(ctx));
     }
 
 
     op(_CHECK_FUNCTION_EXACT_ARGS, (func_version/2, callable, self_or_null, 
unused[oparg] -- callable, self_or_null, unused[oparg])) {
-        sym_set_type(callable, &PyFunction_Type);
+        _Py_uop_sym_set_type(callable, &PyFunction_Type);
         (void)self_or_null;
         (void)func_version;
     }
 
     op(_CHECK_CALL_BOUND_METHOD_EXACT_ARGS, (callable, null, unused[oparg] -- 
callable, null, unused[oparg])) {
-        sym_set_null(null);
-        sym_set_type(callable, &PyMethod_Type);
+        _Py_uop_sym_set_null(null);
+        _Py_uop_sym_set_type(callable, &PyMethod_Type);
     }
 
     op(_INIT_CALL_PY_EXACT_ARGS, (callable, self_or_null, args[oparg] -- 
new_frame: _Py_UOpsAbstractFrame *)) {
@@ -344,7 +344,7 @@ dummy_func(void) {
 
         assert(self_or_null != NULL);
         assert(args != NULL);
-        if (sym_is_not_null(self_or_null)) {
+        if (_Py_uop_sym_is_not_null(self_or_null)) {
             // Bound method fiddling, same as _INIT_CALL_PY_EXACT_ARGS in VM
             args--;
             argcount++;
@@ -355,18 +355,18 @@ dummy_func(void) {
         // Can determine statically, so we interleave the new locals
         // and make the current stack the new locals.
         // This also sets up for true call inlining.
-        if (sym_is_known(self_or_null)) {
+        if (_Py_uop_sym_is_null(self_or_null) || 
_Py_uop_sym_is_not_null(self_or_null)) {
             localsplus_start = args;
             n_locals_already_filled = argcount;
         }
         OUT_OF_SPACE_IF_NULL(new_frame =
-                             ctx_frame_new(ctx, co, localsplus_start, 
n_locals_already_filled, 0));
+                             _Py_uop_ctx_frame_new(ctx, co, localsplus_start, 
n_locals_already_filled, 0));
     }
 
     op(_POP_FRAME, (retval -- res)) {
         SYNC_SP();
         ctx->frame->stack_pointer = stack_pointer;
-        ctx_frame_pop(ctx);
+        _Py_uop_ctx_frame_pop(ctx);
         stack_pointer = ctx->frame->stack_pointer;
         res = retval;
     }
@@ -383,7 +383,7 @@ dummy_func(void) {
         /* This has to be done manually */
         (void)seq;
         for (int i = 0; i < oparg; i++) {
-            OUT_OF_SPACE_IF_NULL(values[i] = sym_new_unknown(ctx));
+            OUT_OF_SPACE_IF_NULL(values[i] = _Py_uop_sym_new_unknown(ctx));
         }
     }
 
@@ -392,12 +392,12 @@ dummy_func(void) {
         (void)seq;
         int totalargs = (oparg & 0xFF) + (oparg >> 8) + 1;
         for (int i = 0; i < totalargs; i++) {
-            OUT_OF_SPACE_IF_NULL(values[i] = sym_new_unknown(ctx));
+            OUT_OF_SPACE_IF_NULL(values[i] = _Py_uop_sym_new_unknown(ctx));
         }
     }
 
     op(_ITER_NEXT_RANGE, (iter -- iter, next)) {
-       OUT_OF_SPACE_IF_NULL(next = sym_new_known_type(ctx, &PyLong_Type));
+       OUT_OF_SPACE_IF_NULL(next = _Py_uop_sym_new_type(ctx, &PyLong_Type));
        (void)iter;
     }
 
diff --git a/Python/optimizer_cases.c.h b/Python/optimizer_cases.c.h
index e8146dccbdfcd1..305158847da6fc 100644
--- a/Python/optimizer_cases.c.h
+++ b/Python/optimizer_cases.c.h
@@ -17,7 +17,7 @@
             _Py_UOpsSymType *value;
             value = GETLOCAL(oparg);
             // We guarantee this will error - just bail and don't optimize it.
-            if (sym_is_null(value)) {
+            if (_Py_uop_sym_is_null(value)) {
                 goto out_of_space;
             }
             stack_pointer[0] = value;
@@ -37,7 +37,7 @@
             _Py_UOpsSymType *value;
             value = GETLOCAL(oparg);
             _Py_UOpsSymType *temp;
-            OUT_OF_SPACE_IF_NULL(temp = sym_new_null(ctx));
+            OUT_OF_SPACE_IF_NULL(temp = _Py_uop_sym_new_null(ctx));
             GETLOCAL(oparg) = temp;
             stack_pointer[0] = value;
             stack_pointer += 1;
@@ -69,7 +69,7 @@
 
         case _PUSH_NULL: {
             _Py_UOpsSymType *res;
-            res = sym_new_null(ctx);
+            res = _Py_uop_sym_new_null(ctx);
             if (res == NULL) {
                 goto out_of_space;
             };
@@ -80,7 +80,7 @@
 
         case _END_SEND: {
             _Py_UOpsSymType *value;
-            value = sym_new_unknown(ctx);
+            value = _Py_uop_sym_new_unknown(ctx);
             if (value == NULL) goto out_of_space;
             stack_pointer[-2] = value;
             stack_pointer += -1;
@@ -89,7 +89,7 @@
 
         case _UNARY_NEGATIVE: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = res;
             break;
@@ -97,7 +97,7 @@
 
         case _UNARY_NOT: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = res;
             break;
@@ -105,7 +105,7 @@
 
         case _TO_BOOL: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = res;
             break;
@@ -117,7 +117,7 @@
 
         case _TO_BOOL_INT: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = res;
             break;
@@ -125,7 +125,7 @@
 
         case _TO_BOOL_LIST: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = res;
             break;
@@ -133,7 +133,7 @@
 
         case _TO_BOOL_NONE: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = res;
             break;
@@ -141,7 +141,7 @@
 
         case _TO_BOOL_STR: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = res;
             break;
@@ -149,7 +149,7 @@
 
         case _TO_BOOL_ALWAYS_TRUE: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = res;
             break;
@@ -157,7 +157,7 @@
 
         case _UNARY_INVERT: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = res;
             break;
@@ -168,12 +168,12 @@
             _Py_UOpsSymType *left;
             right = stack_pointer[-1];
             left = stack_pointer[-2];
-            if (sym_matches_type(left, &PyLong_Type) &&
-                sym_matches_type(right, &PyLong_Type)) {
+            if (_Py_uop_sym_matches_type(left, &PyLong_Type) &&
+                _Py_uop_sym_matches_type(right, &PyLong_Type)) {
                 REPLACE_OP(this_instr, _NOP, 0, 0);
             }
-            sym_set_type(left, &PyLong_Type);
-            sym_set_type(right, &PyLong_Type);
+            _Py_uop_sym_set_type(left, &PyLong_Type);
+            _Py_uop_sym_set_type(right, &PyLong_Type);
             break;
         }
 
@@ -183,20 +183,20 @@
             _Py_UOpsSymType *res;
             right = stack_pointer[-1];
             left = stack_pointer[-2];
-            if (sym_is_const(left) && sym_is_const(right)) {
-                assert(PyLong_CheckExact(sym_get_const(left)));
-                assert(PyLong_CheckExact(sym_get_const(right)));
-                PyObject *temp = _PyLong_Multiply((PyLongObject 
*)sym_get_const(left),
-                    (PyLongObject *)sym_get_const(right));
+            if (_Py_uop_sym_is_const(left) && _Py_uop_sym_is_const(right)) {
+                assert(PyLong_CheckExact(_Py_uop_sym_get_const(left)));
+                assert(PyLong_CheckExact(_Py_uop_sym_get_const(right)));
+                PyObject *temp = _PyLong_Multiply((PyLongObject 
*)_Py_uop_sym_get_const(left),
+                    (PyLongObject *)_Py_uop_sym_get_const(right));
                 if (temp == NULL) {
                     goto error;
                 }
-                OUT_OF_SPACE_IF_NULL(res = sym_new_const(ctx, temp));
+                OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_const(ctx, temp));
                 // TODO gh-115506:
                 // replace opcode with constant propagated one and add tests!
             }
             else {
-                OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, 
&PyLong_Type));
+                OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_type(ctx, 
&PyLong_Type));
             }
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -209,20 +209,20 @@
             _Py_UOpsSymType *res;
             right = stack_pointer[-1];
             left = stack_pointer[-2];
-            if (sym_is_const(left) && sym_is_const(right)) {
-                assert(PyLong_CheckExact(sym_get_const(left)));
-                assert(PyLong_CheckExact(sym_get_const(right)));
-                PyObject *temp = _PyLong_Add((PyLongObject 
*)sym_get_const(left),
-                    (PyLongObject *)sym_get_const(right));
+            if (_Py_uop_sym_is_const(left) && _Py_uop_sym_is_const(right)) {
+                assert(PyLong_CheckExact(_Py_uop_sym_get_const(left)));
+                assert(PyLong_CheckExact(_Py_uop_sym_get_const(right)));
+                PyObject *temp = _PyLong_Add((PyLongObject 
*)_Py_uop_sym_get_const(left),
+                    (PyLongObject *)_Py_uop_sym_get_const(right));
                 if (temp == NULL) {
                     goto error;
                 }
-                OUT_OF_SPACE_IF_NULL(res = sym_new_const(ctx, temp));
+                OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_const(ctx, temp));
                 // TODO gh-115506:
                 // replace opcode with constant propagated one and add tests!
             }
             else {
-                OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, 
&PyLong_Type));
+                OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_type(ctx, 
&PyLong_Type));
             }
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -235,20 +235,20 @@
             _Py_UOpsSymType *res;
             right = stack_pointer[-1];
             left = stack_pointer[-2];
-            if (sym_is_const(left) && sym_is_const(right)) {
-                assert(PyLong_CheckExact(sym_get_const(left)));
-                assert(PyLong_CheckExact(sym_get_const(right)));
-                PyObject *temp = _PyLong_Subtract((PyLongObject 
*)sym_get_const(left),
-                    (PyLongObject *)sym_get_const(right));
+            if (_Py_uop_sym_is_const(left) && _Py_uop_sym_is_const(right)) {
+                assert(PyLong_CheckExact(_Py_uop_sym_get_const(left)));
+                assert(PyLong_CheckExact(_Py_uop_sym_get_const(right)));
+                PyObject *temp = _PyLong_Subtract((PyLongObject 
*)_Py_uop_sym_get_const(left),
+                    (PyLongObject *)_Py_uop_sym_get_const(right));
                 if (temp == NULL) {
                     goto error;
                 }
-                OUT_OF_SPACE_IF_NULL(res = sym_new_const(ctx, temp));
+                OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_const(ctx, temp));
                 // TODO gh-115506:
                 // replace opcode with constant propagated one and add tests!
             }
             else {
-                OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, 
&PyLong_Type));
+                OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_type(ctx, 
&PyLong_Type));
             }
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -260,12 +260,12 @@
             _Py_UOpsSymType *left;
             right = stack_pointer[-1];
             left = stack_pointer[-2];
-            if (sym_matches_type(left, &PyFloat_Type) &&
-                sym_matches_type(right, &PyFloat_Type)) {
+            if (_Py_uop_sym_matches_type(left, &PyFloat_Type) &&
+                _Py_uop_sym_matches_type(right, &PyFloat_Type)) {
                 REPLACE_OP(this_instr, _NOP, 0 ,0);
             }
-            sym_set_type(left, &PyFloat_Type);
-            sym_set_type(right, &PyFloat_Type);
+            _Py_uop_sym_set_type(left, &PyFloat_Type);
+            _Py_uop_sym_set_type(right, &PyFloat_Type);
             break;
         }
 
@@ -275,21 +275,21 @@
             _Py_UOpsSymType *res;
             right = stack_pointer[-1];
             left = stack_pointer[-2];
-            if (sym_is_const(left) && sym_is_const(right)) {
-                assert(PyFloat_CheckExact(sym_get_const(left)));
-                assert(PyFloat_CheckExact(sym_get_const(right)));
+            if (_Py_uop_sym_is_const(left) && _Py_uop_sym_is_const(right)) {
+                assert(PyFloat_CheckExact(_Py_uop_sym_get_const(left)));
+                assert(PyFloat_CheckExact(_Py_uop_sym_get_const(right)));
                 PyObject *temp = PyFloat_FromDouble(
-                    PyFloat_AS_DOUBLE(sym_get_const(left)) *
-                    PyFloat_AS_DOUBLE(sym_get_const(right)));
+                    PyFloat_AS_DOUBLE(_Py_uop_sym_get_const(left)) *
+                    PyFloat_AS_DOUBLE(_Py_uop_sym_get_const(right)));
                 if (temp == NULL) {
                     goto error;
                 }
-                res = sym_new_const(ctx, temp);
+                res = _Py_uop_sym_new_const(ctx, temp);
                 // TODO gh-115506:
                 // replace opcode with constant propagated one and update 
tests!
             }
             else {
-                OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, 
&PyFloat_Type));
+                OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_type(ctx, 
&PyFloat_Type));
             }
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -302,21 +302,21 @@
             _Py_UOpsSymType *res;
             right = stack_pointer[-1];
             left = stack_pointer[-2];
-            if (sym_is_const(left) && sym_is_const(right)) {
-                assert(PyFloat_CheckExact(sym_get_const(left)));
-                assert(PyFloat_CheckExact(sym_get_const(right)));
+            if (_Py_uop_sym_is_const(left) && _Py_uop_sym_is_const(right)) {
+                assert(PyFloat_CheckExact(_Py_uop_sym_get_const(left)));
+                assert(PyFloat_CheckExact(_Py_uop_sym_get_const(right)));
                 PyObject *temp = PyFloat_FromDouble(
-                    PyFloat_AS_DOUBLE(sym_get_const(left)) +
-                    PyFloat_AS_DOUBLE(sym_get_const(right)));
+                    PyFloat_AS_DOUBLE(_Py_uop_sym_get_const(left)) +
+                    PyFloat_AS_DOUBLE(_Py_uop_sym_get_const(right)));
                 if (temp == NULL) {
                     goto error;
                 }
-                res = sym_new_const(ctx, temp);
+                res = _Py_uop_sym_new_const(ctx, temp);
                 // TODO gh-115506:
                 // replace opcode with constant propagated one and update 
tests!
             }
             else {
-                OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, 
&PyFloat_Type));
+                OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_type(ctx, 
&PyFloat_Type));
             }
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -329,21 +329,21 @@
             _Py_UOpsSymType *res;
             right = stack_pointer[-1];
             left = stack_pointer[-2];
-            if (sym_is_const(left) && sym_is_const(right)) {
-                assert(PyFloat_CheckExact(sym_get_const(left)));
-                assert(PyFloat_CheckExact(sym_get_const(right)));
+            if (_Py_uop_sym_is_const(left) && _Py_uop_sym_is_const(right)) {
+                assert(PyFloat_CheckExact(_Py_uop_sym_get_const(left)));
+                assert(PyFloat_CheckExact(_Py_uop_sym_get_const(right)));
                 PyObject *temp = PyFloat_FromDouble(
-                    PyFloat_AS_DOUBLE(sym_get_const(left)) -
-                    PyFloat_AS_DOUBLE(sym_get_const(right)));
+                    PyFloat_AS_DOUBLE(_Py_uop_sym_get_const(left)) -
+                    PyFloat_AS_DOUBLE(_Py_uop_sym_get_const(right)));
                 if (temp == NULL) {
                     goto error;
                 }
-                res = sym_new_const(ctx, temp);
+                res = _Py_uop_sym_new_const(ctx, temp);
                 // TODO gh-115506:
                 // replace opcode with constant propagated one and update 
tests!
             }
             else {
-                OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, 
&PyFloat_Type));
+                OUT_OF_SPACE_IF_NULL(res = _Py_uop_sym_new_type(ctx, 
&PyFloat_Type));
             }
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -355,18 +355,18 @@
             _Py_UOpsSymType *left;
             right = stack_pointer[-1];
             left = stack_pointer[-2];
-            if (sym_matches_type(left, &PyUnicode_Type) &&
-                sym_matches_type(right, &PyUnicode_Type)) {
+            if (_Py_uop_sym_matches_type(left, &PyUnicode_Type) &&
+                _Py_uop_sym_matches_type(right, &PyUnicode_Type)) {
                 REPLACE_OP(this_instr, _NOP, 0 ,0);
             }
-            sym_set_type(left, &PyUnicode_Type);
-            sym_set_type(right, &PyUnicode_Type);
+            _Py_uop_sym_set_type(left, &PyUnicode_Type);
+            _Py_uop_sym_set_type(right, &PyUnicode_Type);
             break;
         }
 
         case _BINARY_OP_ADD_UNICODE: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -375,7 +375,7 @@
 
         case _BINARY_SUBSCR: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -384,7 +384,7 @@
 
         case _BINARY_SLICE: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-3] = res;
             stack_pointer += -2;
@@ -398,7 +398,7 @@
 
         case _BINARY_SUBSCR_LIST_INT: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -407,7 +407,7 @@
 
         case _BINARY_SUBSCR_STR_INT: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -416,7 +416,7 @@
 
         case _BINARY_SUBSCR_TUPLE_INT: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -425,7 +425,7 @@
 
         case _BINARY_SUBSCR_DICT: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -466,7 +466,7 @@
 
         case _CALL_INTRINSIC_1: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = res;
             break;
@@ -474,7 +474,7 @@
 
         case _CALL_INTRINSIC_2: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -487,7 +487,7 @@
             retval = stack_pointer[-1];
             stack_pointer += -1;
             ctx->frame->stack_pointer = stack_pointer;
-            ctx_frame_pop(ctx);
+            _Py_uop_ctx_frame_pop(ctx);
             stack_pointer = ctx->frame->stack_pointer;
             res = retval;
             stack_pointer[0] = res;
@@ -501,7 +501,7 @@
 
         case _GET_AITER: {
             _Py_UOpsSymType *iter;
-            iter = sym_new_unknown(ctx);
+            iter = _Py_uop_sym_new_unknown(ctx);
             if (iter == NULL) goto out_of_space;
             stack_pointer[-1] = iter;
             break;
@@ -509,7 +509,7 @@
 
         case _GET_ANEXT: {
             _Py_UOpsSymType *awaitable;
-            awaitable = sym_new_unknown(ctx);
+            awaitable = _Py_uop_sym_new_unknown(ctx);
             if (awaitable == NULL) goto out_of_space;
             stack_pointer[0] = awaitable;
             stack_pointer += 1;
@@ -518,7 +518,7 @@
 
         case _GET_AWAITABLE: {
             _Py_UOpsSymType *iter;
-            iter = sym_new_unknown(ctx);
+            iter = _Py_uop_sym_new_unknown(ctx);
             if (iter == NULL) goto out_of_space;
             stack_pointer[-1] = iter;
             break;
@@ -537,7 +537,7 @@
 
         case _LOAD_ASSERTION_ERROR: {
             _Py_UOpsSymType *value;
-            value = sym_new_unknown(ctx);
+            value = _Py_uop_sym_new_unknown(ctx);
             if (value == NULL) goto out_of_space;
             stack_pointer[0] = value;
             stack_pointer += 1;
@@ -546,7 +546,7 @@
 
         case _LOAD_BUILD_CLASS: {
             _Py_UOpsSymType *bc;
-            bc = sym_new_unknown(ctx);
+            bc = _Py_uop_sym_new_unknown(ctx);
             if (bc == NULL) goto out_of_space;
             stack_pointer[0] = bc;
             stack_pointer += 1;
@@ -570,7 +570,7 @@
             /* This has to be done manually */
             (void)seq;
             for (int i = 0; i < oparg; i++) {
-                OUT_OF_SPACE_IF_NULL(values[i] = sym_new_unknown(ctx));
+                OUT_OF_SPACE_IF_NULL(values[i] = _Py_uop_sym_new_unknown(ctx));
             }
             stack_pointer += -1 + oparg;
             break;
@@ -580,7 +580,7 @@
             _Py_UOpsSymType **values;
             values = &stack_pointer[-1];
             for (int _i = oparg; --_i >= 0;) {
-                values[_i] = sym_new_unknown(ctx);
+                values[_i] = _Py_uop_sym_new_unknown(ctx);
                 if (values[_i] == NULL) goto out_of_space;
             }
             stack_pointer += -1 + oparg;
@@ -591,7 +591,7 @@
             _Py_UOpsSymType **values;
             values = &stack_pointer[-1];
             for (int _i = oparg; --_i >= 0;) {
-                values[_i] = sym_new_unknown(ctx);
+                values[_i] = _Py_uop_sym_new_unknown(ctx);
                 if (values[_i] == NULL) goto out_of_space;
             }
             stack_pointer += -1 + oparg;
@@ -602,7 +602,7 @@
             _Py_UOpsSymType **values;
             values = &stack_pointer[-1];
             for (int _i = oparg; --_i >= 0;) {
-                values[_i] = sym_new_unknown(ctx);
+                values[_i] = _Py_uop_sym_new_unknown(ctx);
                 if (values[_i] == NULL) goto out_of_space;
             }
             stack_pointer += -1 + oparg;
@@ -618,7 +618,7 @@
             (void)seq;
             int totalargs = (oparg & 0xFF) + (oparg >> 8) + 1;
             for (int i = 0; i < totalargs; i++) {
-                OUT_OF_SPACE_IF_NULL(values[i] = sym_new_unknown(ctx));
+                OUT_OF_SPACE_IF_NULL(values[i] = _Py_uop_sym_new_unknown(ctx));
             }
             stack_pointer += (oparg >> 8) + (oparg & 0xFF);
             break;
@@ -645,7 +645,7 @@
 
         case _LOAD_LOCALS: {
             _Py_UOpsSymType *locals;
-            locals = sym_new_unknown(ctx);
+            locals = _Py_uop_sym_new_unknown(ctx);
             if (locals == NULL) goto out_of_space;
             stack_pointer[0] = locals;
             stack_pointer += 1;
@@ -654,7 +654,7 @@
 
         case _LOAD_FROM_DICT_OR_GLOBALS: {
             _Py_UOpsSymType *v;
-            v = sym_new_unknown(ctx);
+            v = _Py_uop_sym_new_unknown(ctx);
             if (v == NULL) goto out_of_space;
             stack_pointer[-1] = v;
             break;
@@ -662,7 +662,7 @@
 
         case _LOAD_NAME: {
             _Py_UOpsSymType *v;
-            v = sym_new_unknown(ctx);
+            v = _Py_uop_sym_new_unknown(ctx);
             if (v == NULL) goto out_of_space;
             stack_pointer[0] = v;
             stack_pointer += 1;
@@ -672,9 +672,9 @@
         case _LOAD_GLOBAL: {
             _Py_UOpsSymType *res;
             _Py_UOpsSymType *null = NULL;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
-            null = sym_new_null(ctx);
+            null = _Py_uop_sym_new_null(ctx);
             if (null == NULL) goto out_of_space;
             stack_pointer[0] = res;
             if (oparg & 1) stack_pointer[1] = null;
@@ -693,9 +693,9 @@
         case _LOAD_GLOBAL_MODULE: {
             _Py_UOpsSymType *res;
             _Py_UOpsSymType *null = NULL;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
-            null = sym_new_null(ctx);
+            null = _Py_uop_sym_new_null(ctx);
             if (null == NULL) goto out_of_space;
             stack_pointer[0] = res;
             if (oparg & 1) stack_pointer[1] = null;
@@ -706,9 +706,9 @@
         case _LOAD_GLOBAL_BUILTINS: {
             _Py_UOpsSymType *res;
             _Py_UOpsSymType *null = NULL;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
-            null = sym_new_null(ctx);
+            null = _Py_uop_sym_new_null(ctx);
             if (null == NULL) goto out_of_space;
             stack_pointer[0] = res;
             if (oparg & 1) stack_pointer[1] = null;
@@ -730,7 +730,7 @@
 
         case _LOAD_FROM_DICT_OR_DEREF: {
             _Py_UOpsSymType *value;
-            value = sym_new_unknown(ctx);
+            value = _Py_uop_sym_new_unknown(ctx);
             if (value == NULL) goto out_of_space;
             stack_pointer[-1] = value;
             break;
@@ -738,7 +738,7 @@
 
         case _LOAD_DEREF: {
             _Py_UOpsSymType *value;
-            value = sym_new_unknown(ctx);
+            value = _Py_uop_sym_new_unknown(ctx);
             if (value == NULL) goto out_of_space;
             stack_pointer[0] = value;
             stack_pointer += 1;
@@ -756,7 +756,7 @@
 
         case _BUILD_STRING: {
             _Py_UOpsSymType *str;
-            str = sym_new_unknown(ctx);
+            str = _Py_uop_sym_new_unknown(ctx);
             if (str == NULL) goto out_of_space;
             stack_pointer[-oparg] = str;
             stack_pointer += 1 - oparg;
@@ -765,7 +765,7 @@
 
         case _BUILD_TUPLE: {
             _Py_UOpsSymType *tup;
-            tup = sym_new_unknown(ctx);
+            tup = _Py_uop_sym_new_unknown(ctx);
             if (tup == NULL) goto out_of_space;
             stack_pointer[-oparg] = tup;
             stack_pointer += 1 - oparg;
@@ -774,7 +774,7 @@
 
         case _BUILD_LIST: {
             _Py_UOpsSymType *list;
-            list = sym_new_unknown(ctx);
+            list = _Py_uop_sym_new_unknown(ctx);
             if (list == NULL) goto out_of_space;
             stack_pointer[-oparg] = list;
             stack_pointer += 1 - oparg;
@@ -793,7 +793,7 @@
 
         case _BUILD_SET: {
             _Py_UOpsSymType *set;
-            set = sym_new_unknown(ctx);
+            set = _Py_uop_sym_new_unknown(ctx);
             if (set == NULL) goto out_of_space;
             stack_pointer[-oparg] = set;
             stack_pointer += 1 - oparg;
@@ -802,7 +802,7 @@
 
         case _BUILD_MAP: {
             _Py_UOpsSymType *map;
-            map = sym_new_unknown(ctx);
+            map = _Py_uop_sym_new_unknown(ctx);
             if (map == NULL) goto out_of_space;
             stack_pointer[-oparg*2] = map;
             stack_pointer += 1 - oparg*2;
@@ -815,7 +815,7 @@
 
         case _BUILD_CONST_KEY_MAP: {
             _Py_UOpsSymType *map;
-            map = sym_new_unknown(ctx);
+            map = _Py_uop_sym_new_unknown(ctx);
             if (map == NULL) goto out_of_space;
             stack_pointer[-1 - oparg] = map;
             stack_pointer += -oparg;
@@ -841,7 +841,7 @@
 
         case _LOAD_SUPER_ATTR_ATTR: {
             _Py_UOpsSymType *attr;
-            attr = sym_new_unknown(ctx);
+            attr = _Py_uop_sym_new_unknown(ctx);
             if (attr == NULL) goto out_of_space;
             stack_pointer[-3] = attr;
             stack_pointer += -2;
@@ -851,9 +851,9 @@
         case _LOAD_SUPER_ATTR_METHOD: {
             _Py_UOpsSymType *attr;
             _Py_UOpsSymType *self_or_null;
-            attr = sym_new_unknown(ctx);
+            attr = _Py_uop_sym_new_unknown(ctx);
             if (attr == NULL) goto out_of_space;
-            self_or_null = sym_new_unknown(ctx);
+            self_or_null = _Py_uop_sym_new_unknown(ctx);
             if (self_or_null == NULL) goto out_of_space;
             stack_pointer[-3] = attr;
             stack_pointer[-2] = self_or_null;
@@ -864,9 +864,9 @@
         case _LOAD_ATTR: {
             _Py_UOpsSymType *attr;
             _Py_UOpsSymType *self_or_null = NULL;
-            attr = sym_new_unknown(ctx);
+            attr = _Py_uop_sym_new_unknown(ctx);
             if (attr == NULL) goto out_of_space;
-            self_or_null = sym_new_unknown(ctx);
+            self_or_null = _Py_uop_sym_new_unknown(ctx);
             if (self_or_null == NULL) goto out_of_space;
             stack_pointer[-1] = attr;
             if (oparg & 1) stack_pointer[0] = self_or_null;
@@ -902,8 +902,8 @@
             owner = stack_pointer[-1];
             uint32_t dict_version = (uint32_t)this_instr->operand;
             (void)dict_version;
-            if (sym_is_const(owner)) {
-                PyObject *cnst = sym_get_const(owner);
+            if (_Py_uop_sym_is_const(owner)) {
+                PyObject *cnst = _Py_uop_sym_get_const(owner);
                 if (PyModule_CheckExact(cnst)) {
                     PyModuleObject *mod = (PyModuleObject *)cnst;
                     PyObject *dict = mod->md_dict;
@@ -925,23 +925,23 @@
             owner = stack_pointer[-1];
             uint16_t index = (uint16_t)this_instr->operand;
             (void)index;
-            OUT_OF_SPACE_IF_NULL(null = sym_new_null(ctx));
+            OUT_OF_SPACE_IF_NULL(null = _Py_uop_sym_new_null(ctx));
             attr = NULL;
             if (this_instr[-1].opcode == _NOP) {
                 // Preceding _CHECK_ATTR_MODULE was removed: mod is const and 
dict is watched.
-                assert(sym_is_const(owner));
-                PyModuleObject *mod = (PyModuleObject *)sym_get_const(owner);
+                assert(_Py_uop_sym_is_const(owner));
+                PyModuleObject *mod = (PyModuleObject 
*)_Py_uop_sym_get_const(owner);
                 assert(PyModule_CheckExact(mod));
                 PyObject *dict = mod->md_dict;
                 PyObject *res = convert_global_to_const(this_instr, dict);
                 if (res != NULL) {
                     this_instr[-1].opcode = _POP_TOP;
-                    OUT_OF_SPACE_IF_NULL(attr = sym_new_const(ctx, res));
+                    OUT_OF_SPACE_IF_NULL(attr = _Py_uop_sym_new_const(ctx, 
res));
                 }
             }
             if (attr == NULL) {
                 /* No conversion made. We don't know what `attr` is. */
-                OUT_OF_SPACE_IF_NULL(attr = sym_new_known_notnull(ctx));
+                OUT_OF_SPACE_IF_NULL(attr = _Py_uop_sym_new_not_null(ctx));
             }
             stack_pointer[-1] = attr;
             if (oparg & 1) stack_pointer[0] = null;
@@ -1024,7 +1024,7 @@
 
         case _COMPARE_OP: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -1033,7 +1033,7 @@
 
         case _COMPARE_OP_FLOAT: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -1042,7 +1042,7 @@
 
         case _COMPARE_OP_INT: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -1051,7 +1051,7 @@
 
         case _COMPARE_OP_STR: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -1060,7 +1060,7 @@
 
         case _IS_OP: {
             _Py_UOpsSymType *b;
-            b = sym_new_unknown(ctx);
+            b = _Py_uop_sym_new_unknown(ctx);
             if (b == NULL) goto out_of_space;
             stack_pointer[-2] = b;
             stack_pointer += -1;
@@ -1069,7 +1069,7 @@
 
         case _CONTAINS_OP: {
             _Py_UOpsSymType *b;
-            b = sym_new_unknown(ctx);
+            b = _Py_uop_sym_new_unknown(ctx);
             if (b == NULL) goto out_of_space;
             stack_pointer[-2] = b;
             stack_pointer += -1;
@@ -1079,9 +1079,9 @@
         case _CHECK_EG_MATCH: {
             _Py_UOpsSymType *rest;
             _Py_UOpsSymType *match;
-            rest = sym_new_unknown(ctx);
+            rest = _Py_uop_sym_new_unknown(ctx);
             if (rest == NULL) goto out_of_space;
-            match = sym_new_unknown(ctx);
+            match = _Py_uop_sym_new_unknown(ctx);
             if (match == NULL) goto out_of_space;
             stack_pointer[-2] = rest;
             stack_pointer[-1] = match;
@@ -1090,7 +1090,7 @@
 
         case _CHECK_EXC_MATCH: {
             _Py_UOpsSymType *b;
-            b = sym_new_unknown(ctx);
+            b = _Py_uop_sym_new_unknown(ctx);
             if (b == NULL) goto out_of_space;
             stack_pointer[-1] = b;
             break;
@@ -1102,7 +1102,7 @@
 
         case _IS_NONE: {
             _Py_UOpsSymType *b;
-            b = sym_new_unknown(ctx);
+            b = _Py_uop_sym_new_unknown(ctx);
             if (b == NULL) goto out_of_space;
             stack_pointer[-1] = b;
             break;
@@ -1110,7 +1110,7 @@
 
         case _GET_LEN: {
             _Py_UOpsSymType *len_o;
-            len_o = sym_new_unknown(ctx);
+            len_o = _Py_uop_sym_new_unknown(ctx);
             if (len_o == NULL) goto out_of_space;
             stack_pointer[0] = len_o;
             stack_pointer += 1;
@@ -1119,7 +1119,7 @@
 
         case _MATCH_CLASS: {
             _Py_UOpsSymType *attrs;
-            attrs = sym_new_unknown(ctx);
+            attrs = _Py_uop_sym_new_unknown(ctx);
             if (attrs == NULL) goto out_of_space;
             stack_pointer[-3] = attrs;
             stack_pointer += -2;
@@ -1128,7 +1128,7 @@
 
         case _MATCH_MAPPING: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[0] = res;
             stack_pointer += 1;
@@ -1137,7 +1137,7 @@
 
         case _MATCH_SEQUENCE: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[0] = res;
             stack_pointer += 1;
@@ -1146,7 +1146,7 @@
 
         case _MATCH_KEYS: {
             _Py_UOpsSymType *values_or_none;
-            values_or_none = sym_new_unknown(ctx);
+            values_or_none = _Py_uop_sym_new_unknown(ctx);
             if (values_or_none == NULL) goto out_of_space;
             stack_pointer[0] = values_or_none;
             stack_pointer += 1;
@@ -1155,7 +1155,7 @@
 
         case _GET_ITER: {
             _Py_UOpsSymType *iter;
-            iter = sym_new_unknown(ctx);
+            iter = _Py_uop_sym_new_unknown(ctx);
             if (iter == NULL) goto out_of_space;
             stack_pointer[-1] = iter;
             break;
@@ -1163,7 +1163,7 @@
 
         case _GET_YIELD_FROM_ITER: {
             _Py_UOpsSymType *iter;
-            iter = sym_new_unknown(ctx);
+            iter = _Py_uop_sym_new_unknown(ctx);
             if (iter == NULL) goto out_of_space;
             stack_pointer[-1] = iter;
             break;
@@ -1173,7 +1173,7 @@
 
         case _FOR_ITER_TIER_TWO: {
             _Py_UOpsSymType *next;
-            next = sym_new_unknown(ctx);
+            next = _Py_uop_sym_new_unknown(ctx);
             if (next == NULL) goto out_of_space;
             stack_pointer[0] = next;
             stack_pointer += 1;
@@ -1194,7 +1194,7 @@
 
         case _ITER_NEXT_LIST: {
             _Py_UOpsSymType *next;
-            next = sym_new_unknown(ctx);
+            next = _Py_uop_sym_new_unknown(ctx);
             if (next == NULL) goto out_of_space;
             stack_pointer[0] = next;
             stack_pointer += 1;
@@ -1213,7 +1213,7 @@
 
         case _ITER_NEXT_TUPLE: {
             _Py_UOpsSymType *next;
-            next = sym_new_unknown(ctx);
+            next = _Py_uop_sym_new_unknown(ctx);
             if (next == NULL) goto out_of_space;
             stack_pointer[0] = next;
             stack_pointer += 1;
@@ -1234,7 +1234,7 @@
             _Py_UOpsSymType *iter;
             _Py_UOpsSymType *next;
             iter = stack_pointer[-1];
-            OUT_OF_SPACE_IF_NULL(next = sym_new_known_type(ctx, &PyLong_Type));
+            OUT_OF_SPACE_IF_NULL(next = _Py_uop_sym_new_type(ctx, 
&PyLong_Type));
             (void)iter;
             stack_pointer[0] = next;
             stack_pointer += 1;
@@ -1246,9 +1246,9 @@
         case _BEFORE_ASYNC_WITH: {
             _Py_UOpsSymType *exit;
             _Py_UOpsSymType *res;
-            exit = sym_new_unknown(ctx);
+            exit = _Py_uop_sym_new_unknown(ctx);
             if (exit == NULL) goto out_of_space;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = exit;
             stack_pointer[0] = res;
@@ -1259,9 +1259,9 @@
         case _BEFORE_WITH: {
             _Py_UOpsSymType *exit;
             _Py_UOpsSymType *res;
-            exit = sym_new_unknown(ctx);
+            exit = _Py_uop_sym_new_unknown(ctx);
             if (exit == NULL) goto out_of_space;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = exit;
             stack_pointer[0] = res;
@@ -1271,7 +1271,7 @@
 
         case _WITH_EXCEPT_START: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[0] = res;
             stack_pointer += 1;
@@ -1281,9 +1281,9 @@
         case _PUSH_EXC_INFO: {
             _Py_UOpsSymType *prev_exc;
             _Py_UOpsSymType *new_exc;
-            prev_exc = sym_new_unknown(ctx);
+            prev_exc = _Py_uop_sym_new_unknown(ctx);
             if (prev_exc == NULL) goto out_of_space;
-            new_exc = sym_new_unknown(ctx);
+            new_exc = _Py_uop_sym_new_unknown(ctx);
             if (new_exc == NULL) goto out_of_space;
             stack_pointer[-1] = prev_exc;
             stack_pointer[0] = new_exc;
@@ -1306,7 +1306,7 @@
             owner = stack_pointer[-1];
             PyObject *descr = (PyObject *)this_instr->operand;
             (void)descr;
-            OUT_OF_SPACE_IF_NULL(attr = sym_new_known_notnull(ctx));
+            OUT_OF_SPACE_IF_NULL(attr = _Py_uop_sym_new_not_null(ctx));
             self = owner;
             stack_pointer[-1] = attr;
             stack_pointer[0] = self;
@@ -1321,7 +1321,7 @@
             owner = stack_pointer[-1];
             PyObject *descr = (PyObject *)this_instr->operand;
             (void)descr;
-            OUT_OF_SPACE_IF_NULL(attr = sym_new_known_notnull(ctx));
+            OUT_OF_SPACE_IF_NULL(attr = _Py_uop_sym_new_not_null(ctx));
             self = owner;
             stack_pointer[-1] = attr;
             stack_pointer[0] = self;
@@ -1331,7 +1331,7 @@
 
         case _LOAD_ATTR_NONDESCRIPTOR_WITH_VALUES: {
             _Py_UOpsSymType *attr;
-            attr = sym_new_unknown(ctx);
+            attr = _Py_uop_sym_new_unknown(ctx);
             if (attr == NULL) goto out_of_space;
             stack_pointer[-1] = attr;
             break;
@@ -1339,7 +1339,7 @@
 
         case _LOAD_ATTR_NONDESCRIPTOR_NO_DICT: {
             _Py_UOpsSymType *attr;
-            attr = sym_new_unknown(ctx);
+            attr = _Py_uop_sym_new_unknown(ctx);
             if (attr == NULL) goto out_of_space;
             stack_pointer[-1] = attr;
             break;
@@ -1356,7 +1356,7 @@
             owner = stack_pointer[-1];
             PyObject *descr = (PyObject *)this_instr->operand;
             (void)descr;
-            OUT_OF_SPACE_IF_NULL(attr = sym_new_known_notnull(ctx));
+            OUT_OF_SPACE_IF_NULL(attr = _Py_uop_sym_new_not_null(ctx));
             self = owner;
             stack_pointer[-1] = attr;
             stack_pointer[0] = self;
@@ -1373,8 +1373,8 @@
             _Py_UOpsSymType *callable;
             null = stack_pointer[-1 - oparg];
             callable = stack_pointer[-2 - oparg];
-            sym_set_null(null);
-            sym_set_type(callable, &PyMethod_Type);
+            _Py_uop_sym_set_null(null);
+            _Py_uop_sym_set_type(callable, &PyMethod_Type);
             break;
         }
 
@@ -1384,8 +1384,8 @@
             _Py_UOpsSymType *self;
             callable = stack_pointer[-2 - oparg];
             (void)callable;
-            OUT_OF_SPACE_IF_NULL(func = sym_new_known_notnull(ctx));
-            OUT_OF_SPACE_IF_NULL(self = sym_new_known_notnull(ctx));
+            OUT_OF_SPACE_IF_NULL(func = _Py_uop_sym_new_not_null(ctx));
+            OUT_OF_SPACE_IF_NULL(self = _Py_uop_sym_new_not_null(ctx));
             stack_pointer[-2 - oparg] = func;
             stack_pointer[-1 - oparg] = self;
             break;
@@ -1401,7 +1401,7 @@
             self_or_null = stack_pointer[-1 - oparg];
             callable = stack_pointer[-2 - oparg];
             uint32_t func_version = (uint32_t)this_instr->operand;
-            sym_set_type(callable, &PyFunction_Type);
+            _Py_uop_sym_set_type(callable, &PyFunction_Type);
             (void)self_or_null;
             (void)func_version;
             break;
@@ -1428,7 +1428,7 @@
             PyCodeObject *co = (PyCodeObject *)func->func_code;
             assert(self_or_null != NULL);
             assert(args != NULL);
-            if (sym_is_not_null(self_or_null)) {
+            if (_Py_uop_sym_is_not_null(self_or_null)) {
                 // Bound method fiddling, same as _INIT_CALL_PY_EXACT_ARGS in 
VM
                 args--;
                 argcount++;
@@ -1438,12 +1438,12 @@
             // Can determine statically, so we interleave the new locals
             // and make the current stack the new locals.
             // This also sets up for true call inlining.
-            if (sym_is_known(self_or_null)) {
+            if (_Py_uop_sym_is_null(self_or_null) || 
_Py_uop_sym_is_not_null(self_or_null)) {
                 localsplus_start = args;
                 n_locals_already_filled = argcount;
             }
             OUT_OF_SPACE_IF_NULL(new_frame =
-                             ctx_frame_new(ctx, co, localsplus_start, 
n_locals_already_filled, 0));
+                             _Py_uop_ctx_frame_new(ctx, co, localsplus_start, 
n_locals_already_filled, 0));
             stack_pointer[-2 - oparg] = (_Py_UOpsSymType *)new_frame;
             stack_pointer += -1 - oparg;
             break;
@@ -1464,7 +1464,7 @@
 
         case _CALL_TYPE_1: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1473,7 +1473,7 @@
 
         case _CALL_STR_1: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1482,7 +1482,7 @@
 
         case _CALL_TUPLE_1: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1498,7 +1498,7 @@
 
         case _CALL_BUILTIN_CLASS: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1507,7 +1507,7 @@
 
         case _CALL_BUILTIN_O: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1516,7 +1516,7 @@
 
         case _CALL_BUILTIN_FAST: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1525,7 +1525,7 @@
 
         case _CALL_BUILTIN_FAST_WITH_KEYWORDS: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1534,7 +1534,7 @@
 
         case _CALL_LEN: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1543,7 +1543,7 @@
 
         case _CALL_ISINSTANCE: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1552,7 +1552,7 @@
 
         case _CALL_METHOD_DESCRIPTOR_O: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1561,7 +1561,7 @@
 
         case _CALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1570,7 +1570,7 @@
 
         case _CALL_METHOD_DESCRIPTOR_NOARGS: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1579,7 +1579,7 @@
 
         case _CALL_METHOD_DESCRIPTOR_FAST: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2 - oparg] = res;
             stack_pointer += -1 - oparg;
@@ -1596,7 +1596,7 @@
 
         case _MAKE_FUNCTION: {
             _Py_UOpsSymType *func;
-            func = sym_new_unknown(ctx);
+            func = _Py_uop_sym_new_unknown(ctx);
             if (func == NULL) goto out_of_space;
             stack_pointer[-1] = func;
             break;
@@ -1604,7 +1604,7 @@
 
         case _SET_FUNCTION_ATTRIBUTE: {
             _Py_UOpsSymType *func;
-            func = sym_new_unknown(ctx);
+            func = _Py_uop_sym_new_unknown(ctx);
             if (func == NULL) goto out_of_space;
             stack_pointer[-2] = func;
             stack_pointer += -1;
@@ -1613,7 +1613,7 @@
 
         case _BUILD_SLICE: {
             _Py_UOpsSymType *slice;
-            slice = sym_new_unknown(ctx);
+            slice = _Py_uop_sym_new_unknown(ctx);
             if (slice == NULL) goto out_of_space;
             stack_pointer[-2 - ((oparg == 3) ? 1 : 0)] = slice;
             stack_pointer += -1 - ((oparg == 3) ? 1 : 0);
@@ -1622,7 +1622,7 @@
 
         case _CONVERT_VALUE: {
             _Py_UOpsSymType *result;
-            result = sym_new_unknown(ctx);
+            result = _Py_uop_sym_new_unknown(ctx);
             if (result == NULL) goto out_of_space;
             stack_pointer[-1] = result;
             break;
@@ -1630,7 +1630,7 @@
 
         case _FORMAT_SIMPLE: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-1] = res;
             break;
@@ -1638,7 +1638,7 @@
 
         case _FORMAT_WITH_SPEC: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -1658,7 +1658,7 @@
 
         case _BINARY_OP: {
             _Py_UOpsSymType *res;
-            res = sym_new_unknown(ctx);
+            res = _Py_uop_sym_new_unknown(ctx);
             if (res == NULL) goto out_of_space;
             stack_pointer[-2] = res;
             stack_pointer += -1;
@@ -1732,7 +1732,7 @@
         case _LOAD_CONST_INLINE: {
             _Py_UOpsSymType *value;
             PyObject *ptr = (PyObject *)this_instr->operand;
-            OUT_OF_SPACE_IF_NULL(value = sym_new_const(ctx, ptr));
+            OUT_OF_SPACE_IF_NULL(value = _Py_uop_sym_new_const(ctx, ptr));
             stack_pointer[0] = value;
             stack_pointer += 1;
             break;
@@ -1741,7 +1741,7 @@
         case _LOAD_CONST_INLINE_BORROW: {
             _Py_UOpsSymType *value;
             PyObject *ptr = (PyObject *)this_instr->operand;
-            OUT_OF_SPACE_IF_NULL(value = sym_new_const(ctx, ptr));
+            OUT_OF_SPACE_IF_NULL(value = _Py_uop_sym_new_const(ctx, ptr));
             stack_pointer[0] = value;
             stack_pointer += 1;
             break;
@@ -1751,8 +1751,8 @@
             _Py_UOpsSymType *value;
             _Py_UOpsSymType *null;
             PyObject *ptr = (PyObject *)this_instr->operand;
-            OUT_OF_SPACE_IF_NULL(value = sym_new_const(ctx, ptr));
-            OUT_OF_SPACE_IF_NULL(null = sym_new_null(ctx));
+            OUT_OF_SPACE_IF_NULL(value = _Py_uop_sym_new_const(ctx, ptr));
+            OUT_OF_SPACE_IF_NULL(null = _Py_uop_sym_new_null(ctx));
             stack_pointer[0] = value;
             stack_pointer[1] = null;
             stack_pointer += 2;
@@ -1763,8 +1763,8 @@
             _Py_UOpsSymType *value;
             _Py_UOpsSymType *null;
             PyObject *ptr = (PyObject *)this_instr->operand;
-            OUT_OF_SPACE_IF_NULL(value = sym_new_const(ctx, ptr));
-            OUT_OF_SPACE_IF_NULL(null = sym_new_null(ctx));
+            OUT_OF_SPACE_IF_NULL(value = _Py_uop_sym_new_const(ctx, ptr));
+            OUT_OF_SPACE_IF_NULL(null = _Py_uop_sym_new_null(ctx));
             stack_pointer[0] = value;
             stack_pointer[1] = null;
             stack_pointer += 2;
diff --git a/Python/optimizer_symbols.c b/Python/optimizer_symbols.c
new file mode 100644
index 00000000000000..1b7c88cf785fd2
--- /dev/null
+++ b/Python/optimizer_symbols.c
@@ -0,0 +1,332 @@
+
+#include "Python.h"
+
+#include "cpython/optimizer.h"
+#include "pycore_code.h"
+#include "pycore_frame.h"
+#include "pycore_optimizer.h"
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+
+// Flags for below.
+#define KNOWN      1 << 0
+#define TRUE_CONST 1 << 1
+#define IS_NULL    1 << 2
+#define NOT_NULL   1 << 3
+
+#ifdef Py_DEBUG
+static inline int get_lltrace(void) {
+    char *uop_debug = Py_GETENV("PYTHON_OPT_DEBUG");
+    int lltrace = 0;
+    if (uop_debug != NULL && *uop_debug >= '0') {
+        lltrace = *uop_debug - '0';  // TODO: Parse an int and all that
+    }
+    return lltrace;
+}
+#define DPRINTF(level, ...) \
+    if (get_lltrace() >= (level)) { printf(__VA_ARGS__); }
+#else
+#define DPRINTF(level, ...)
+#endif
+
+// Takes a borrowed reference to const_val, turns that into a strong reference.
+static _Py_UOpsSymType*
+sym_new(_Py_UOpsAbstractInterpContext *ctx, PyObject *const_val)
+{
+    _Py_UOpsSymType *self = &ctx->t_arena.arena[ctx->t_arena.ty_curr_number];
+    if (ctx->t_arena.ty_curr_number >= ctx->t_arena.ty_max_number) {
+        OPT_STAT_INC(optimizer_failure_reason_no_memory);
+        DPRINTF(1, "out of space for symbolic expression type\n");
+        return NULL;
+    }
+    ctx->t_arena.ty_curr_number++;
+    self->const_val = NULL;
+    self->typ = NULL;
+    self->flags = 0;
+
+    if (const_val != NULL) {
+        self->const_val = Py_NewRef(const_val);
+    }
+
+    return self;
+}
+
+static inline void
+sym_set_flag(_Py_UOpsSymType *sym, int flag)
+{
+    sym->flags |= flag;
+}
+
+static inline bool
+sym_has_flag(_Py_UOpsSymType *sym, int flag)
+{
+    return (sym->flags & flag) != 0;
+}
+
+bool
+_Py_uop_sym_is_not_null(_Py_UOpsSymType *sym)
+{
+    return (sym->flags & (IS_NULL | NOT_NULL)) == NOT_NULL;
+}
+
+bool
+_Py_uop_sym_is_null(_Py_UOpsSymType *sym)
+{
+    return (sym->flags & (IS_NULL | NOT_NULL)) == IS_NULL;
+}
+
+bool
+_Py_uop_sym_is_const(_Py_UOpsSymType *sym)
+{
+    return (sym->flags & TRUE_CONST) != 0;
+}
+
+PyObject *
+_Py_uop_sym_get_const(_Py_UOpsSymType *sym)
+{
+    assert(_Py_uop_sym_is_const(sym));
+    assert(sym->const_val);
+    return sym->const_val;
+}
+
+void
+_Py_uop_sym_set_type(_Py_UOpsSymType *sym, PyTypeObject *tp)
+{
+    assert(PyType_Check(tp));
+    sym->typ = tp;
+    sym_set_flag(sym, KNOWN);
+    sym_set_flag(sym, NOT_NULL);
+}
+
+void
+_Py_uop_sym_set_null(_Py_UOpsSymType *sym)
+{
+    sym_set_flag(sym, IS_NULL);
+    sym_set_flag(sym, KNOWN);
+}
+
+
+_Py_UOpsSymType *
+_Py_uop_sym_new_unknown(_Py_UOpsAbstractInterpContext *ctx)
+{
+    return sym_new(ctx,NULL);
+}
+
+_Py_UOpsSymType *
+_Py_uop_sym_new_not_null(_Py_UOpsAbstractInterpContext *ctx)
+{
+    _Py_UOpsSymType *res = _Py_uop_sym_new_unknown(ctx);
+    if (res == NULL) {
+        return NULL;
+    }
+    sym_set_flag(res, KNOWN);
+    sym_set_flag(res, NOT_NULL);
+    return res;
+}
+
+_Py_UOpsSymType *
+_Py_uop_sym_new_type(_Py_UOpsAbstractInterpContext *ctx,
+                      PyTypeObject *typ)
+{
+    _Py_UOpsSymType *res = sym_new(ctx,NULL);
+    if (res == NULL) {
+        return NULL;
+    }
+    _Py_uop_sym_set_type(res, typ);
+    return res;
+}
+
+// Takes a borrowed reference to const_val.
+_Py_UOpsSymType*
+_Py_uop_sym_new_const(_Py_UOpsAbstractInterpContext *ctx, PyObject *const_val)
+{
+    assert(const_val != NULL);
+    _Py_UOpsSymType *temp = sym_new(
+        ctx,
+        const_val
+    );
+    if (temp == NULL) {
+        return NULL;
+    }
+    _Py_uop_sym_set_type(temp, Py_TYPE(const_val));
+    sym_set_flag(temp, TRUE_CONST);
+    sym_set_flag(temp, KNOWN);
+    sym_set_flag(temp, NOT_NULL);
+    return temp;
+}
+
+_Py_UOpsSymType*
+_Py_uop_sym_new_null(_Py_UOpsAbstractInterpContext *ctx)
+{
+    _Py_UOpsSymType *null_sym = _Py_uop_sym_new_unknown(ctx);
+    if (null_sym == NULL) {
+        return NULL;
+    }
+    _Py_uop_sym_set_null(null_sym);
+    return null_sym;
+}
+
+bool
+_Py_uop_sym_matches_type(_Py_UOpsSymType *sym, PyTypeObject *typ)
+{
+    assert(typ == NULL || PyType_Check(typ));
+    if (!sym_has_flag(sym, KNOWN)) {
+        return false;
+    }
+    return sym->typ == typ;
+}
+
+// 0 on success, -1 on error.
+_Py_UOpsAbstractFrame *
+_Py_uop_ctx_frame_new(
+    _Py_UOpsAbstractInterpContext *ctx,
+    PyCodeObject *co,
+    _Py_UOpsSymType **localsplus_start,
+    int n_locals_already_filled,
+    int curr_stackentries
+)
+{
+    assert(ctx->curr_frame_depth < MAX_ABSTRACT_FRAME_DEPTH);
+    _Py_UOpsAbstractFrame *frame = &ctx->frames[ctx->curr_frame_depth];
+
+    frame->stack_len = co->co_stacksize;
+    frame->locals_len = co->co_nlocalsplus;
+
+    frame->locals = localsplus_start;
+    frame->stack = frame->locals + co->co_nlocalsplus;
+    frame->stack_pointer = frame->stack + curr_stackentries;
+    ctx->n_consumed = localsplus_start + (co->co_nlocalsplus + 
co->co_stacksize);
+    if (ctx->n_consumed >= ctx->limit) {
+        return NULL;
+    }
+
+
+    // Initialize with the initial state of all local variables
+    for (int i = n_locals_already_filled; i < co->co_nlocalsplus; i++) {
+        _Py_UOpsSymType *local = _Py_uop_sym_new_unknown(ctx);
+        if (local == NULL) {
+            return NULL;
+        }
+        frame->locals[i] = local;
+    }
+
+
+    // Initialize the stack as well
+    for (int i = 0; i < curr_stackentries; i++) {
+        _Py_UOpsSymType *stackvar = _Py_uop_sym_new_unknown(ctx);
+        if (stackvar == NULL) {
+            return NULL;
+        }
+        frame->stack[i] = stackvar;
+    }
+
+    return frame;
+}
+
+void
+_Py_uop_abstractcontext_fini(_Py_UOpsAbstractInterpContext *ctx)
+{
+    if (ctx == NULL) {
+        return;
+    }
+    ctx->curr_frame_depth = 0;
+    int tys = ctx->t_arena.ty_curr_number;
+    for (int i = 0; i < tys; i++) {
+        Py_CLEAR(ctx->t_arena.arena[i].const_val);
+    }
+}
+
+int
+_Py_uop_abstractcontext_init(
+    _Py_UOpsAbstractInterpContext *ctx
+)
+{
+    ctx->limit = ctx->locals_and_stack + MAX_ABSTRACT_INTERP_SIZE;
+    ctx->n_consumed = ctx->locals_and_stack;
+#ifdef Py_DEBUG // Aids debugging a little. There should never be NULL in the 
abstract interpreter.
+    for (int i = 0 ; i < MAX_ABSTRACT_INTERP_SIZE; i++) {
+        ctx->locals_and_stack[i] = NULL;
+    }
+#endif
+
+    // Setup the arena for sym expressions.
+    ctx->t_arena.ty_curr_number = 0;
+    ctx->t_arena.ty_max_number = TY_ARENA_SIZE;
+
+    // Frame setup
+    ctx->curr_frame_depth = 0;
+
+    return 0;
+}
+
+int
+_Py_uop_ctx_frame_pop(
+    _Py_UOpsAbstractInterpContext *ctx
+)
+{
+    _Py_UOpsAbstractFrame *frame = ctx->frame;
+
+    ctx->n_consumed = frame->locals;
+    ctx->curr_frame_depth--;
+    assert(ctx->curr_frame_depth >= 1);
+    ctx->frame = &ctx->frames[ctx->curr_frame_depth - 1];
+
+    return 0;
+}
+
+#define TEST_PREDICATE(PRED, MSG) \
+do { \
+    if (!(PRED)) { \
+        PyErr_SetString( \
+            PyExc_AssertionError, \
+            (MSG)); \
+        goto fail; \
+    } \
+} while (0)
+
+/*
+static _Py_UOpsSymType *
+make_bottom(_Py_UOpsAbstractInterpContext *ctx)
+{
+    _Py_UOpsSymType *sym = _Py_uop_sym_new_unknown(ctx);
+    _Py_uop_sym_set_null(sym);
+    _Py_uop_sym_set_type(sym, &PyLong_Type);
+    return sym;
+}*/
+
+PyObject *
+_Py_uop_symbols_test(PyObject *Py_UNUSED(self), PyObject *Py_UNUSED(ignored))
+{
+    _Py_UOpsAbstractInterpContext context;
+    _Py_UOpsAbstractInterpContext *ctx = &context;
+    _Py_uop_abstractcontext_init(ctx);
+
+    _Py_UOpsSymType *top = _Py_uop_sym_new_unknown(ctx);
+    if (top == NULL) {
+        return NULL;
+    }
+    TEST_PREDICATE(!_Py_uop_sym_is_null(top), "unknown is NULL");
+    TEST_PREDICATE(!_Py_uop_sym_is_not_null(top), "unknown is not NULL");
+    TEST_PREDICATE(!_Py_uop_sym_is_const(top), "unknown is a constant");
+    // TEST_PREDICATE(_Py_uop_sym_get_const(top) == NULL, "unknown as constant 
is not NULL");
+
+    // _Py_UOpsSymType *bottom = make_bottom(ctx);
+    // TEST_PREDICATE(_Py_uop_sym_is_null(bottom), "bottom is NULL is not 
true");
+    // TEST_PREDICATE(_Py_uop_sym_is_not_null(bottom), "bottom is not NULL is 
not true");
+    // TEST_PREDICATE(_Py_uop_sym_is_const(bottom), "bottom is a constant is 
not true");
+
+    _Py_UOpsSymType *int_type = _Py_uop_sym_new_type(ctx, &PyLong_Type);
+    TEST_PREDICATE(_Py_uop_sym_matches_type(int_type, &PyLong_Type), 
"inconsistent type");
+    _Py_uop_sym_set_type(int_type, &PyLong_Type);
+    TEST_PREDICATE(_Py_uop_sym_matches_type(int_type, &PyLong_Type), 
"inconsistent type");
+    _Py_uop_sym_set_type(int_type, &PyFloat_Type);
+    // TEST_PREDICATE(_Py_uop_sym_matches_type(int_type, &PyLong_Type), 
"bottom doesn't match int");
+
+    _Py_uop_abstractcontext_fini(ctx);
+    Py_RETURN_NONE;
+fail:
+    _Py_uop_abstractcontext_fini(ctx);
+    return NULL;
+}
diff --git a/Tools/c-analyzer/cpython/ignored.tsv 
b/Tools/c-analyzer/cpython/ignored.tsv
index e9b81cf4c7d653..0f212ecb528ac4 100644
--- a/Tools/c-analyzer/cpython/ignored.tsv
+++ b/Tools/c-analyzer/cpython/ignored.tsv
@@ -740,6 +740,4 @@ Modules/expat/xmlrole.c     -       error   -
 ## other
 Modules/_io/_iomodule.c        -       _PyIO_Module    -
 Modules/_sqlite/module.c       -       _sqlite3module  -
-Python/optimizer_analysis.c    -       _Py_UOpsAbstractFrame_Type      -
-Python/optimizer_analysis.c    -       _Py_UOpsAbstractInterpContext_Type      
-
 Modules/clinic/md5module.c.h   _md5_md5        _keywords       -
diff --git a/Tools/cases_generator/optimizer_generator.py 
b/Tools/cases_generator/optimizer_generator.py
index aa3f4ecb11d58b..f110a74e3ad351 100644
--- a/Tools/cases_generator/optimizer_generator.py
+++ b/Tools/cases_generator/optimizer_generator.py
@@ -87,14 +87,14 @@ def emit_default(out: CWriter, uop: Uop) -> None:
         if var.name != "unused" and not var.peek:
             if var.is_array():
                 out.emit(f"for (int _i = {var.size}; --_i >= 0;) {{\n")
-                out.emit(f"{var.name}[_i] = sym_new_unknown(ctx);\n")
+                out.emit(f"{var.name}[_i] = _Py_uop_sym_new_unknown(ctx);\n")
                 out.emit(f"if ({var.name}[_i] == NULL) goto out_of_space;\n")
                 out.emit("}\n")
             elif var.name == "null":
-                out.emit(f"{var.name} = sym_new_null(ctx);\n")
+                out.emit(f"{var.name} = _Py_uop_sym_new_null(ctx);\n")
                 out.emit(f"if ({var.name} == NULL) goto out_of_space;\n")
             else:
-                out.emit(f"{var.name} = sym_new_unknown(ctx);\n")
+                out.emit(f"{var.name} = _Py_uop_sym_new_unknown(ctx);\n")
                 out.emit(f"if ({var.name} == NULL) goto out_of_space;\n")
 
 

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