diff options
Diffstat (limited to 'ext/opcache/Optimizer/dfa_pass.c')
| -rw-r--r-- | ext/opcache/Optimizer/dfa_pass.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/ext/opcache/Optimizer/dfa_pass.c b/ext/opcache/Optimizer/dfa_pass.c index 3f4112a7db..40a3dc996b 100644 --- a/ext/opcache/Optimizer/dfa_pass.c +++ b/ext/opcache/Optimizer/dfa_pass.c @@ -128,7 +128,14 @@ static void zend_ssa_remove_nops(zend_op_array *op_array, zend_ssa *ssa) shiftlist = (uint32_t *)do_alloca(sizeof(uint32_t) * op_array->last, use_heap); memset(shiftlist, 0, sizeof(uint32_t) * op_array->last); for (b = blocks; b < end; b++) { - if (b->flags & ZEND_BB_REACHABLE) { + if (b->flags & (ZEND_BB_REACHABLE|ZEND_BB_UNREACHABLE_FREE)) { + if (b->flags & ZEND_BB_UNREACHABLE_FREE) { + /* Only keep the FREE for the loop var */ + ZEND_ASSERT(op_array->opcodes[b->start].opcode == ZEND_FREE + || op_array->opcodes[b->start].opcode == ZEND_FE_FREE); + b->end = b->start; + } + i = b->start; b->start = target; while (i <= b->end) { |