mirror of
https://github.com/python/cpython.git
synced 2025-10-31 13:41:24 +00:00
95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
#ifndef Py_INTERNAL_OPCODE_UTILS_H
|
|
#define Py_INTERNAL_OPCODE_UTILS_H
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifndef Py_BUILD_CORE
|
|
# error "this header requires Py_BUILD_CORE define"
|
|
#endif
|
|
|
|
#include "pycore_opcode.h" // _PyOpcode_RelativeJump
|
|
|
|
|
|
#define MAX_REAL_OPCODE 254
|
|
|
|
#define IS_WITHIN_OPCODE_RANGE(opcode) \
|
|
(((opcode) >= 0 && (opcode) <= MAX_REAL_OPCODE) || \
|
|
IS_PSEUDO_OPCODE(opcode))
|
|
|
|
#define IS_JUMP_OPCODE(opcode) \
|
|
is_bit_set_in_table(_PyOpcode_Jump, opcode)
|
|
|
|
#define IS_BLOCK_PUSH_OPCODE(opcode) \
|
|
((opcode) == SETUP_FINALLY || \
|
|
(opcode) == SETUP_WITH || \
|
|
(opcode) == SETUP_CLEANUP)
|
|
|
|
#define HAS_TARGET(opcode) \
|
|
(IS_JUMP_OPCODE(opcode) || IS_BLOCK_PUSH_OPCODE(opcode))
|
|
|
|
/* opcodes that must be last in the basicblock */
|
|
#define IS_TERMINATOR_OPCODE(opcode) \
|
|
(IS_JUMP_OPCODE(opcode) || IS_SCOPE_EXIT_OPCODE(opcode))
|
|
|
|
/* opcodes which are not emitted in codegen stage, only by the assembler */
|
|
#define IS_ASSEMBLER_OPCODE(opcode) \
|
|
((opcode) == JUMP_FORWARD || \
|
|
(opcode) == JUMP_BACKWARD || \
|
|
(opcode) == JUMP_BACKWARD_NO_INTERRUPT)
|
|
|
|
#define IS_BACKWARDS_JUMP_OPCODE(opcode) \
|
|
((opcode) == JUMP_BACKWARD || \
|
|
(opcode) == JUMP_BACKWARD_NO_INTERRUPT)
|
|
|
|
#define IS_UNCONDITIONAL_JUMP_OPCODE(opcode) \
|
|
((opcode) == JUMP || \
|
|
(opcode) == JUMP_NO_INTERRUPT || \
|
|
(opcode) == JUMP_FORWARD || \
|
|
(opcode) == JUMP_BACKWARD || \
|
|
(opcode) == JUMP_BACKWARD_NO_INTERRUPT)
|
|
|
|
#define IS_SCOPE_EXIT_OPCODE(opcode) \
|
|
((opcode) == RETURN_VALUE || \
|
|
(opcode) == RETURN_CONST || \
|
|
(opcode) == RAISE_VARARGS || \
|
|
(opcode) == RERAISE)
|
|
|
|
#define IS_SUPERINSTRUCTION_OPCODE(opcode) \
|
|
((opcode) == LOAD_FAST__LOAD_FAST || \
|
|
(opcode) == LOAD_FAST__LOAD_CONST || \
|
|
(opcode) == LOAD_CONST__LOAD_FAST || \
|
|
(opcode) == STORE_FAST__LOAD_FAST || \
|
|
(opcode) == STORE_FAST__STORE_FAST)
|
|
|
|
|
|
#define LOG_BITS_PER_INT 5
|
|
#define MASK_LOW_LOG_BITS 31
|
|
|
|
static inline int
|
|
is_bit_set_in_table(const uint32_t *table, int bitindex) {
|
|
/* Is the relevant bit set in the relevant word? */
|
|
/* 512 bits fit into 9 32-bits words.
|
|
* Word is indexed by (bitindex>>ln(size of int in bits)).
|
|
* Bit within word is the low bits of bitindex.
|
|
*/
|
|
if (bitindex >= 0 && bitindex < 512) {
|
|
uint32_t word = table[bitindex >> LOG_BITS_PER_INT];
|
|
return (word >> (bitindex & MASK_LOW_LOG_BITS)) & 1;
|
|
}
|
|
else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
#undef LOG_BITS_PER_INT
|
|
#undef MASK_LOW_LOG_BITS
|
|
|
|
#define IS_RELATIVE_JUMP(opcode) (is_bit_set_in_table(_PyOpcode_RelativeJump, opcode))
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !Py_INTERNAL_OPCODE_UTILS_H */
|