Fix GH-15821: Core dumped in Zend/Optimizer/zend_inference.c:4062

Author: dstogov

Zend/Optimizer/zend_inference.c

@@ -4056,11 +4056,11 @@ static zend_always_inline zend_result _zend_update_type_info(
 				fprintf(stderr, "Missing op2 type inference for opcode %s, line %d\n", zend_get_opcode_name(opline->opcode), opline->lineno);
 			}
 #endif
-unknown_opcode:
 			if (ssa_op->op1_def >= 0) {
 				tmp = MAY_BE_ANY | MAY_BE_REF | MAY_BE_RC1 | MAY_BE_RCN | MAY_BE_ARRAY_KEY_ANY | MAY_BE_ARRAY_OF_ANY | MAY_BE_ARRAY_OF_REF;
 				UPDATE_SSA_TYPE(tmp, ssa_op->op1_def);
 			}
+unknown_opcode:
 			if (ssa_op->result_def >= 0) {
 				tmp = MAY_BE_ANY | MAY_BE_ARRAY_KEY_ANY | MAY_BE_ARRAY_OF_ANY | MAY_BE_ARRAY_OF_REF;
 				if (opline->result_type == IS_TMP_VAR) {

ext/opcache/tests/jit/gh15821.phpt

@@ -0,0 +1,20 @@
+--TEST--
+GH-15821 (Core dumped in Zend/Optimizer/zend_inference.c:4062)
+--EXTENSIONS--
+opcache
+--INI--
+opcache.jit=1203
+opcache.jit_buffer_size=64M
+--FILE--
+<?php
+$allInternalFunctions = array();
+$definedFunctions = get_defined_functions();
+$internalFunctions = $definedFunctions['internal'];
+$allInternalFunctions = array_merge($allInternalFunctions, $internalFunctions);
+$allInternalFunctions = array_filter($allInternalFunctions, function($func) {
+    strpos($func, 'posix_') !== 0;
+});
+echo "Done\n";
+?>
+--EXPECT--
+Done