Fixed codegeneration for PRE_DEC

dstogov · dstogov · commit 411b6fb4e6bc · 2023-10-30T20:41:04.000+03:00
Fixes oss-fuzz #63713
diff --git a/ext/opcache/jit/zend_jit_ir.c b/ext/opcache/jit/zend_jit_ir.c
@@ -4538,7 +4538,7 @@ static int zend_jit_inc_dec(zend_jit_ctx *jit, const zend_op *opline, uint32_t o
 			stack = JIT_G(current_frame)->stack;
 			if (opline->result_type != IS_UNUSED) {
 				old_res_info = STACK_INFO(stack, EX_VAR_TO_NUM(opline->result.var));
-				if (opline->opcode == ZEND_PRE_INC) {
+				if (opline->opcode == ZEND_PRE_INC || opline->opcode == ZEND_PRE_DEC) {
 					SET_STACK_TYPE(stack, EX_VAR_TO_NUM(opline->result.var), IS_LONG, 0);
 				}
 			}

Original file line number	Diff line number	Diff line change
`@@ -4538,7 +4538,7 @@ static int zend_jit_inc_dec(zend_jit_ctx jit, const zend_op opline, uint32_t o`
`4538`	`4538`	`stack = JIT_G(current_frame)->stack;`
`4539`	`4539`	`if (opline->result_type != IS_UNUSED) {`
`4540`	`4540`	`old_res_info = STACK_INFO(stack, EX_VAR_TO_NUM(opline->result.var));`
`4541`		`- if (opline->opcode == ZEND_PRE_INC) {`
	`4541`	`+ if (opline->opcode == ZEND_PRE_INC \|\| opline->opcode == ZEND_PRE_DEC) {`
`4542`	`4542`	`SET_STACK_TYPE(stack, EX_VAR_TO_NUM(opline->result.var), IS_LONG, 0);`
`4543`	`4543`	`}`
`4544`	`4544`	`}`