diff options
Diffstat (limited to 'Python/flowgraph.c')
| -rw-r--r-- | Python/flowgraph.c | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/Python/flowgraph.c b/Python/flowgraph.c index cf3e740..4f101a6 100644 --- a/Python/flowgraph.c +++ b/Python/flowgraph.c @@ -760,11 +760,6 @@ make_cfg_traversal_stack(basicblock *entryblock) { typedef struct { /* The stack effect of the instruction. */ int net; - - /* The maximum stack usage of the instruction. Some instructions may - * temporarily push extra values to the stack while they are executing. - */ - int max; } stack_effects; Py_LOCAL(int) @@ -784,14 +779,9 @@ get_stack_effects(int opcode, int oparg, int jump, stack_effects *effects) } if (IS_BLOCK_PUSH_OPCODE(opcode) && !jump) { effects->net = 0; - effects->max = 0; return 0; } - if (_PyOpcode_max_stack_effect(opcode, oparg, &effects->max) < 0) { - return -1; - } effects->net = pushed - popped; - assert(effects->max >= effects->net); return 0; } @@ -852,7 +842,7 @@ calculate_stackdepth(cfg_builder *g) "Invalid CFG, stack underflow"); goto error; } - maxdepth = Py_MAX(maxdepth, depth + effects.max); + maxdepth = Py_MAX(maxdepth, depth); if (HAS_TARGET(instr->i_opcode) && instr->i_opcode != END_ASYNC_FOR) { if (get_stack_effects(instr->i_opcode, instr->i_oparg, 1, &effects) < 0) { PyErr_Format(PyExc_SystemError, @@ -862,7 +852,7 @@ calculate_stackdepth(cfg_builder *g) } int target_depth = depth + effects.net; assert(target_depth >= 0); /* invalid code or bug in stackdepth() */ - maxdepth = Py_MAX(maxdepth, depth + effects.max); + maxdepth = Py_MAX(maxdepth, depth); if (stackdepth_push(&sp, instr->i_target, target_depth) < 0) { goto error; } |