Fix incorrect conditions

Author: dstogov

ext/opcache/jit/zend_jit_trace.c

@@ -2205,7 +2205,7 @@ static zend_ssa *zend_jit_trace_build_tssa(zend_jit_trace_rec *trace_buffer, uin
 					assert(0);
 				}
 				if (opline->opcode == ZEND_ASSIGN_DIM_OP
-				 && ssa_ops[idx].op1_def > 0
+				 && ssa_ops[idx].op1_def >= 0
 				 && op1_type == IS_ARRAY
 				 && (orig_op1_type & IS_TRACE_PACKED)
 				 && val_type != IS_UNKNOWN
@@ -5033,7 +5033,7 @@ static const void *zend_jit_trace(zend_jit_trace_rec *trace_buffer, uint32_t par
 								zend_may_throw_ex(opline, ssa_op, op_array, ssa, op1_info, op2_info))) {
 							goto jit_failure;
 						}
-						if (ssa_op->op2_def > 0
+						if (ssa_op->op2_def >= 0
 						 && Z_MODE(op2_addr) == IS_REG
 						 && ssa->vars[ssa_op->op2_def].no_val) {
 							uint8_t type = (op2_info & MAY_BE_LONG) ? IS_LONG : IS_DOUBLE;
@@ -5083,7 +5083,7 @@ static const void *zend_jit_trace(zend_jit_trace_rec *trace_buffer, uint32_t par
 								res_use_info, res_info, res_addr)) {
 							goto jit_failure;
 						}
-						if (ssa_op->op1_def > 0
+						if (ssa_op->op1_def >= 0
 						 && Z_MODE(op1_addr) == IS_REG
 						 && ssa->vars[ssa_op->op1_def].no_val) {
 							uint8_t type = (op1_info & MAY_BE_LONG) ? IS_LONG : IS_DOUBLE;
@@ -5180,7 +5180,7 @@ static const void *zend_jit_trace(zend_jit_trace_rec *trace_buffer, uint32_t par
 								op1_info, op1_addr, op1_def_addr)) {
 							goto jit_failure;
 						}
-						if (ssa_op->op1_def > 0
+						if (ssa_op->op1_def >= 0
 						 && Z_MODE(op1_addr) == IS_REG
 						 && ssa->vars[ssa_op->op1_def].no_val) {
 							uint8_t type = (op1_info & MAY_BE_LONG) ? IS_LONG : IS_DOUBLE;
@@ -5730,7 +5730,7 @@ static const void *zend_jit_trace(zend_jit_trace_rec *trace_buffer, uint32_t par
 								op1_info, op1_addr, op2_info, RES_REG_ADDR(), val_type)) {
 							goto jit_failure;
 						}
-						if (ssa_op->result_def > 0
+						if (ssa_op->result_def >= 0
 						 && (opline->opcode == ZEND_FETCH_DIM_W || opline->opcode == ZEND_FETCH_LIST_W)
 						 && !(op1_info & (MAY_BE_FALSE|MAY_BE_TRUE|MAY_BE_LONG|MAY_BE_DOUBLE|MAY_BE_STRING|MAY_BE_OBJECT|MAY_BE_RESOURCE|MAY_BE_REF))
 						 && !(op2_info & (MAY_BE_UNDEF|MAY_BE_RESOURCE|MAY_BE_ARRAY|MAY_BE_OBJECT))) {