com php-src: Fix type inference bugs: ext/opcache/Optimizer/zen d_inference.c

Commit: fba6f90ae3d9d15b2fab7a0ec06be5767e2ab148 Author: Nikita Popov <nikic@php.net> Wed, 8 Jun 2016 22:21:36 +0200 Parents: 006b8417d11d8f5b3ba88c4e9478df2843c5588a Branches: master Link: http://git.php.net/?p=php-src.git;a=commitdiff;h=fba6f90ae3d9d15b2fab7a0ec06be5767e2ab148 Log: Fix type inference bugs * Add proper array_key_any|array_of_any|array_of_ref in some more places * strlen() on objects may be null * IS fetch on string dim may be null Changed paths: M ext/opcache/Optimizer/zend_inference.c Diff: diff --git a/ext/opcache/Optimizer/zend_inference.c b/ext/opcache/Optimizer/zend_inference.c index 0a15e4b..c8024d0 100644 --- a/ext/opcache/Optimizer/zend_inference.c +++ b/ext/opcache/Optimizer/zend_inference.c @@ -2524,7 +2524,7 @@ static void zend_update_type_info(const zend_op_array *op_array, if (opline->extended_value == ZEND_ASSIGN_OBJ) { tmp = MAY_BE_RC1; orig = t1 & ~MAY_BE_UNDEF; - t1 = MAY_BE_ANY; + t1 = MAY_BE_ANY | MAY_BE_ARRAY_KEY_ANY | MAY_BE_ARRAY_OF_ANY | MAY_BE_ARRAY_OF_REF; t2 = OP1_DATA_INFO(); } else if (opline->extended_value == ZEND_ASSIGN_DIM) { tmp = MAY_BE_RC1; @@ -2801,11 +2801,13 @@ static void zend_update_type_info(const zend_op_array *op_array, } break; case ZEND_BIND_GLOBAL: - tmp = (MAY_BE_REF | MAY_BE_ANY); + tmp = MAY_BE_REF | MAY_BE_ANY + | MAY_BE_ARRAY_KEY_ANY | MAY_BE_ARRAY_OF_ANY | MAY_BE_ARRAY_OF_REF; UPDATE_SSA_TYPE(tmp, ssa_ops[i].op1_def); break; case ZEND_BIND_STATIC: - tmp = MAY_BE_ANY | (opline->extended_value ? MAY_BE_REF : (MAY_BE_RC1 | MAY_BE_RCN)); + tmp = MAY_BE_ANY | MAY_BE_ARRAY_KEY_ANY | MAY_BE_ARRAY_OF_ANY | MAY_BE_ARRAY_OF_REF + | (opline->extended_value ? MAY_BE_REF : (MAY_BE_RC1 | MAY_BE_RCN)); UPDATE_SSA_TYPE(tmp, ssa_ops[i].op1_def); break; case ZEND_SEND_VAR: @@ -3239,6 +3241,8 @@ static void zend_update_type_info(const zend_op_array *op_array, } else if (t2 & (MAY_BE_ARRAY|MAY_BE_OBJECT)) { tmp |= MAY_BE_ERROR; } + } else if (opline->opcode == ZEND_FETCH_DIM_IS && (t1 & MAY_BE_STRING)) { + tmp |= MAY_BE_NULL; } UPDATE_SSA_TYPE(tmp, ssa_ops[i].result_def); break; @@ -3319,7 +3323,7 @@ static void zend_update_type_info(const zend_op_array *op_array, break; case ZEND_STRLEN: tmp = MAY_BE_RC1|MAY_BE_LONG; - if (t1 & (MAY_BE_ANY - (MAY_BE_NULL|MAY_BE_FALSE|MAY_BE_TRUE|MAY_BE_LONG|MAY_BE_DOUBLE|MAY_BE_STRING|MAY_BE_OBJECT))) { + if (t1 & (MAY_BE_ANY - (MAY_BE_NULL|MAY_BE_FALSE|MAY_BE_TRUE|MAY_BE_LONG|MAY_BE_DOUBLE|MAY_BE_STRING))) { tmp |= MAY_BE_NULL; } UPDATE_SSA_TYPE(tmp, ssa_ops[i].result_def);