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gh-118335: Configure Tier 2 interpreter at build time (#118339)

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The code for Tier 2 is now only compiled when configured
with `--enable-experimental-jit[=yes|interpreter]`.

We drop support for `PYTHON_UOPS` and -`Xuops`,
but you can disable the interpreter or JIT
at runtime by setting `PYTHON_JIT=0`.
You can also build it without enabling it by default
using `--enable-experimental-jit=yes-off`;
enable with `PYTHON_JIT=1`.

On Windows, the `build.bat` script supports
`--experimental-jit`, `--experimental-jit-off`,
`--experimental-interpreter`.

In the C code, `_Py_JIT` is defined as before
when the JIT is enabled; the new variable
`_Py_TIER2` is defined when the JIT *or* the
interpreter is enabled. It is actually a bitmask:
1: JIT; 2: default-off; 4: interpreter.
This commit is contained in:
Guido van Rossum 2024-04-30 18:26:34 -07:00 • committed by GitHub
parent 9c468e2c5d
commit 7d83f7bcc4
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GPG key ID: B5690EEEBB952194
32 changed files with 181 additions and 42 deletions
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4
Include/internal/pycore_opcode_metadata.h generated
View file

@ -981,7 +981,7 @@ const struct opcode_metadata _PyOpcode_opcode_metadata[268] = {
[BUILD_SLICE] = { true, INSTR_FMT_IB, HAS_ARG_FLAG | HAS_ERROR_FLAG },
[BUILD_STRING] = { true, INSTR_FMT_IB, HAS_ARG_FLAG | HAS_ERROR_FLAG },
[BUILD_TUPLE] = { true, INSTR_FMT_IB, HAS_ARG_FLAG | HAS_ERROR_FLAG },
[CACHE] = { true, INSTR_FMT_IX, HAS_ESCAPES_FLAG },
[CACHE] = { true, INSTR_FMT_IX, 0 },
[CALL] = { true, INSTR_FMT_IBC00, HAS_ARG_FLAG | HAS_EVAL_BREAK_FLAG | HAS_ERROR_FLAG | HAS_ERROR_NO_POP_FLAG | HAS_ESCAPES_FLAG },
[CALL_ALLOC_AND_ENTER_INIT] = { true, INSTR_FMT_IBC00, HAS_ARG_FLAG | HAS_DEOPT_FLAG | HAS_ERROR_FLAG | HAS_ERROR_NO_POP_FLAG | HAS_ESCAPES_FLAG },
[CALL_BOUND_METHOD_EXACT_ARGS] = { true, INSTR_FMT_IBC00, HAS_ARG_FLAG | HAS_DEOPT_FLAG | HAS_EXIT_FLAG },
@ -1121,7 +1121,7 @@ const struct opcode_metadata _PyOpcode_opcode_metadata[268] = {
[PUSH_NULL] = { true, INSTR_FMT_IX, HAS_PURE_FLAG },
[RAISE_VARARGS] = { true, INSTR_FMT_IB, HAS_ARG_FLAG | HAS_ERROR_FLAG | HAS_ERROR_NO_POP_FLAG | HAS_ESCAPES_FLAG },
[RERAISE] = { true, INSTR_FMT_IB, HAS_ARG_FLAG | HAS_ERROR_FLAG | HAS_ERROR_NO_POP_FLAG | HAS_ESCAPES_FLAG },
[RESERVED] = { true, INSTR_FMT_IX, HAS_ESCAPES_FLAG },
[RESERVED] = { true, INSTR_FMT_IX, 0 },
[RESUME] = { true, INSTR_FMT_IB, HAS_ARG_FLAG | HAS_EVAL_BREAK_FLAG | HAS_ERROR_FLAG | HAS_ESCAPES_FLAG },
[RESUME_CHECK] = { true, INSTR_FMT_IX, HAS_DEOPT_FLAG },
[RETURN_CONST] = { true, INSTR_FMT_IB, HAS_ARG_FLAG | HAS_CONST_FLAG },

2
Include/internal/pycore_uop_metadata.h generated
View file

@ -249,7 +249,7 @@ const uint16_t _PyUop_Flags[MAX_UOP_ID+1] = {
[_COLD_EXIT] = HAS_ARG_FLAG | HAS_ESCAPES_FLAG,
[_DYNAMIC_EXIT] = HAS_ARG_FLAG | HAS_ESCAPES_FLAG,
[_START_EXECUTOR] = HAS_DEOPT_FLAG,
[_FATAL_ERROR] = HAS_ESCAPES_FLAG,
[_FATAL_ERROR] = 0,
[_CHECK_VALIDITY_AND_SET_IP] = HAS_DEOPT_FLAG,
[_DEOPT] = 0,
[_SIDE_EXIT] = 0,