mirror of https://github.com/python/cpython
136 lines
3.9 KiB
C
136 lines
3.9 KiB
C
#include "Python.h"
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#include "pycore_backoff.h"
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#include "pycore_call.h"
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#include "pycore_ceval.h"
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#include "pycore_cell.h"
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#include "pycore_dict.h"
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#include "pycore_emscripten_signal.h"
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#include "pycore_intrinsics.h"
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#include "pycore_jit.h"
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#include "pycore_long.h"
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#include "pycore_opcode_metadata.h"
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#include "pycore_opcode_utils.h"
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#include "pycore_optimizer.h"
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#include "pycore_pyatomic_ft_wrappers.h"
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#include "pycore_range.h"
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#include "pycore_setobject.h"
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#include "pycore_sliceobject.h"
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#include "pycore_descrobject.h"
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#include "ceval_macros.h"
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#undef CURRENT_OPARG
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#define CURRENT_OPARG() (_oparg)
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#undef CURRENT_OPERAND
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#define CURRENT_OPERAND() (_operand)
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#undef DEOPT_IF
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#define DEOPT_IF(COND, INSTNAME) \
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do { \
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if ((COND)) { \
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goto deoptimize; \
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} \
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} while (0)
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#undef ENABLE_SPECIALIZATION
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#define ENABLE_SPECIALIZATION (0)
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#undef GOTO_ERROR
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#define GOTO_ERROR(LABEL) \
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do { \
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goto LABEL ## _tier_two; \
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} while (0)
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#undef GOTO_TIER_TWO
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#define GOTO_TIER_TWO(EXECUTOR) \
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do { \
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OPT_STAT_INC(traces_executed); \
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__attribute__((musttail)) \
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return ((jit_func)((EXECUTOR)->jit_side_entry))(frame, stack_pointer, tstate); \
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} while (0)
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#undef GOTO_TIER_ONE
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#define GOTO_TIER_ONE(TARGET) \
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do { \
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_PyFrame_SetStackPointer(frame, stack_pointer); \
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return TARGET; \
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} while (0)
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#undef LOAD_IP
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#define LOAD_IP(UNUSED) \
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do { \
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} while (0)
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#define PATCH_VALUE(TYPE, NAME, ALIAS) \
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PyAPI_DATA(void) ALIAS; \
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TYPE NAME = (TYPE)(uintptr_t)&ALIAS;
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#define PATCH_JUMP(ALIAS) \
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do { \
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PyAPI_DATA(void) ALIAS; \
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__attribute__((musttail)) \
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return ((jit_func)&ALIAS)(frame, stack_pointer, tstate); \
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} while (0)
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#undef JUMP_TO_JUMP_TARGET
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#define JUMP_TO_JUMP_TARGET() PATCH_JUMP(_JIT_JUMP_TARGET)
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#undef JUMP_TO_ERROR
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#define JUMP_TO_ERROR() PATCH_JUMP(_JIT_ERROR_TARGET)
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#undef WITHIN_STACK_BOUNDS
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#define WITHIN_STACK_BOUNDS() 1
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_Py_CODEUNIT *
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_JIT_ENTRY(_PyInterpreterFrame *frame, PyObject **stack_pointer, PyThreadState *tstate)
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{
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// Locals that the instruction implementations expect to exist:
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PATCH_VALUE(_PyExecutorObject *, current_executor, _JIT_EXECUTOR)
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int oparg;
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int uopcode = _JIT_OPCODE;
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_Py_CODEUNIT *next_instr;
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// Other stuff we need handy:
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PATCH_VALUE(uint16_t, _oparg, _JIT_OPARG)
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#if SIZEOF_VOID_P == 8
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PATCH_VALUE(uint64_t, _operand, _JIT_OPERAND)
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#else
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assert(SIZEOF_VOID_P == 4);
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PATCH_VALUE(uint32_t, _operand_hi, _JIT_OPERAND_HI)
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PATCH_VALUE(uint32_t, _operand_lo, _JIT_OPERAND_LO)
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uint64_t _operand = ((uint64_t)_operand_hi << 32) | _operand_lo;
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#endif
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PATCH_VALUE(uint32_t, _target, _JIT_TARGET)
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PATCH_VALUE(uint16_t, _exit_index, _JIT_EXIT_INDEX)
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OPT_STAT_INC(uops_executed);
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UOP_STAT_INC(uopcode, execution_count);
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// The actual instruction definitions (only one will be used):
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switch (uopcode) {
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#include "executor_cases.c.h"
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default:
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Py_UNREACHABLE();
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}
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PATCH_JUMP(_JIT_CONTINUE);
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// Labels that the instruction implementations expect to exist:
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error_tier_two:
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tstate->previous_executor = (PyObject *)current_executor;
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GOTO_TIER_ONE(NULL);
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exit_to_tier1:
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tstate->previous_executor = (PyObject *)current_executor;
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GOTO_TIER_ONE(_PyCode_CODE(_PyFrame_GetCode(frame)) + _target);
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exit_to_tier1_dynamic:
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tstate->previous_executor = (PyObject *)current_executor;
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GOTO_TIER_ONE(frame->instr_ptr);
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exit_to_trace:
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{
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_PyExitData *exit = ¤t_executor->exits[_exit_index];
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Py_INCREF(exit->executor);
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tstate->previous_executor = (PyObject *)current_executor;
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GOTO_TIER_TWO(exit->executor);
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}
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}
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