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