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Always memoize assert #11686

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Always memoize assert #11686

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24 changes: 16 additions & 8 deletions Zend/zend_compile.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4083,10 +4083,6 @@ static void zend_compile_assert(znode *result, zend_ast_list *args, zend_string
zend_op *opline;
uint32_t check_op_number = get_next_op_number();

/* Assert expression may not be memoized and reused as it may not actually be evaluated. */
int orig_memoize_mode = CG(memoize_mode);
CG(memoize_mode) = ZEND_MEMOIZE_NONE;

zend_emit_op(NULL, ZEND_ASSERT_CHECK, NULL, NULL);

if (fbc && fbc_is_finalized(fbc)) {
Expand Down Expand Up @@ -4120,8 +4116,6 @@ static void zend_compile_assert(znode *result, zend_ast_list *args, zend_string
opline = &CG(active_op_array)->opcodes[check_op_number];
opline->op2.opline_num = get_next_op_number();
SET_NODE(opline->result, result);

CG(memoize_mode) = orig_memoize_mode;
} else {
if (!fbc) {
zend_string_release_ex(name, 0);
Expand Down Expand Up @@ -4453,7 +4447,14 @@ static void zend_compile_call(znode *result, zend_ast *ast, uint32_t type) /* {{
if (runtime_resolution) {
if (zend_string_equals_literal_ci(zend_ast_get_str(name_ast), "assert")
&& !is_callable_convert) {
zend_compile_assert(result, zend_ast_get_list(args_ast), Z_STR(name_node.u.constant), NULL);
if (CG(memoize_mode) == ZEND_MEMOIZE_NONE) {
zend_compile_assert(result, zend_ast_get_list(args_ast), Z_STR(name_node.u.constant), NULL);
} else {
/* We want to always memoize assert calls, even if they are positioned in
* write-context. This prevents memoizing their arguments that might not be
* evaluated if assertions are disabled, using a TMPVAR that wasn't initialized. */
zend_compile_memoized_expr(result, ast);
}
} else {
zend_compile_ns_call(result, &name_node, args_ast);
}
Expand All @@ -4472,7 +4473,14 @@ static void zend_compile_call(znode *result, zend_ast *ast, uint32_t type) /* {{

/* Special assert() handling should apply independently of compiler flags. */
if (fbc && zend_string_equals_literal(lcname, "assert") && !is_callable_convert) {
zend_compile_assert(result, zend_ast_get_list(args_ast), lcname, fbc);
if (CG(memoize_mode) == ZEND_MEMOIZE_NONE) {
zend_compile_assert(result, zend_ast_get_list(args_ast), lcname, fbc);
} else {
/* We want to always memoize assert calls, even if they are positioned in
* write-context. This prevents memoizing their arguments that might not be
* evaluated if assertions are disabled, using a TMPVAR that wasn't initialized. */
zend_compile_memoized_expr(result, ast);
}
zend_string_release(lcname);
zval_ptr_dtor(&name_node.u.constant);
return;
Expand Down