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GH-130415: Use boolean guards to narrow types to values in the JIT (GH-130659)

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Brandt Bucher 2025-03-02 13:21:34 -08:00 • committed by GitHub
parent c6513f7a62
commit 7afa476874
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7 changed files with 348 additions and 166 deletions
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15
Include/internal/pycore_optimizer.h
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@ -172,6 +172,7 @@ typedef enum _JitSymType {
JIT_SYM_KNOWN_CLASS_TAG = 6,
JIT_SYM_KNOWN_VALUE_TAG = 7,
JIT_SYM_TUPLE_TAG = 8,
JIT_SYM_TRUTHINESS_TAG = 9,
} JitSymType;
typedef struct _jit_opt_known_class {
@ -198,12 +199,19 @@ typedef struct _jit_opt_tuple {
uint16_t items[MAX_SYMBOLIC_TUPLE_SIZE];
} JitOptTuple;
typedef struct {
uint8_t tag;
bool not;
uint16_t value;
} JitOptTruthiness;
typedef union _jit_opt_symbol {
uint8_t tag;
JitOptKnownClass cls;
JitOptKnownValue value;
JitOptKnownVersion version;
JitOptTuple tuple;
JitOptTruthiness truthiness;
} JitOptSymbol;
@ -245,8 +253,8 @@ typedef struct _JitOptContext {
extern bool _Py_uop_sym_is_null(JitOptSymbol *sym);
extern bool _Py_uop_sym_is_not_null(JitOptSymbol *sym);
extern bool _Py_uop_sym_is_const(JitOptSymbol *sym);
extern PyObject *_Py_uop_sym_get_const(JitOptSymbol *sym);
extern bool _Py_uop_sym_is_const(JitOptContext *ctx, JitOptSymbol *sym);
extern PyObject *_Py_uop_sym_get_const(JitOptContext *ctx, JitOptSymbol *sym);
extern JitOptSymbol *_Py_uop_sym_new_unknown(JitOptContext *ctx);
extern JitOptSymbol *_Py_uop_sym_new_not_null(JitOptContext *ctx);
extern JitOptSymbol *_Py_uop_sym_new_type(
@ -262,12 +270,13 @@ extern void _Py_uop_sym_set_type(JitOptContext *ctx, JitOptSymbol *sym, PyTypeOb
extern bool _Py_uop_sym_set_type_version(JitOptContext *ctx, JitOptSymbol *sym, unsigned int version);
extern void _Py_uop_sym_set_const(JitOptContext *ctx, JitOptSymbol *sym, PyObject *const_val);
extern bool _Py_uop_sym_is_bottom(JitOptSymbol *sym);
extern int _Py_uop_sym_truthiness(JitOptSymbol *sym);
extern int _Py_uop_sym_truthiness(JitOptContext *ctx, JitOptSymbol *sym);
extern PyTypeObject *_Py_uop_sym_get_type(JitOptSymbol *sym);
extern bool _Py_uop_sym_is_immortal(JitOptSymbol *sym);
extern JitOptSymbol *_Py_uop_sym_new_tuple(JitOptContext *ctx, int size, JitOptSymbol **args);
extern JitOptSymbol *_Py_uop_sym_tuple_getitem(JitOptContext *ctx, JitOptSymbol *sym, int item);
extern int _Py_uop_sym_tuple_length(JitOptSymbol *sym);
extern JitOptSymbol *_Py_uop_sym_new_truthiness(JitOptContext *ctx, JitOptSymbol *value, bool truthy);
extern void _Py_uop_abstractcontext_init(JitOptContext *ctx);
extern void _Py_uop_abstractcontext_fini(JitOptContext *ctx);