diff options
Diffstat (limited to 'Python/optimizer.c')
| -rw-r--r-- | Python/optimizer.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Python/optimizer.c b/Python/optimizer.c index 0a6cc5c..9d77ab4 100644 --- a/Python/optimizer.c +++ b/Python/optimizer.c @@ -325,8 +325,8 @@ translate_bytecode_to_trace( } #define ADD_TO_TRACE(OPCODE, OPERAND) \ if (lltrace >= 2) { \ - const char *opname = (OPCODE) < 256 ? _PyOpcode_OpName[(OPCODE)] : ""; \ - fprintf(stderr, " ADD_TO_TRACE(%s %d, %" PRIu64 ")\n", opname, (OPCODE), (uint64_t)(OPERAND)); \ + const char *opname = (OPCODE) < 256 ? _PyOpcode_OpName[(OPCODE)] : _PyOpcode_uop_name[(OPCODE)]; \ + fprintf(stderr, " ADD_TO_TRACE(%s, %" PRIu64 ")\n", opname, (uint64_t)(OPERAND)); \ } \ trace[trace_length].opcode = (OPCODE); \ trace[trace_length].operand = (OPERAND); \ @@ -474,6 +474,8 @@ PyUnstable_Optimizer_NewUOpOptimizer(void) } opt->optimize = uop_optimize; opt->resume_threshold = UINT16_MAX; - opt->backedge_threshold = 0; + // Need at least 3 iterations to settle specializations. + // A few lower bits of the counter are reserved for other flags. + opt->backedge_threshold = 3 << OPTIMIZER_BITS_IN_COUNTER; return (PyObject *)opt; } |