From: Nikita Popov <nikita.ppv@gmail.com>
Date: Wed, 22 Jul 2020 09:10:42 +0000 (+0200)
Subject: Drop no-op dasm_growpc() call
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f90c73595747e50ec66bbc3e96cc01f96d650237;p=php

Drop no-op dasm_growpc() call

This doesn't do anything, as maxpc=0 is passed. However, ubsan
complains about the memset of a null pointer, so avoid it.
---

diff --git a/ext/opcache/jit/zend_jit_trace.c b/ext/opcache/jit/zend_jit_trace.c
index 06d7422ae5..7a52c78d76 100644
--- a/ext/opcache/jit/zend_jit_trace.c
+++ b/ext/opcache/jit/zend_jit_trace.c
@@ -4609,7 +4609,6 @@ static const void *zend_jit_trace_exit_to_vm(uint32_t trace_num, uint32_t exit_n
 	dasm_init(&dasm_state, DASM_MAXSECTION);
 	dasm_setupglobal(&dasm_state, dasm_labels, zend_lb_MAX);
 	dasm_setup(&dasm_state, dasm_actions);
-	dasm_growpc(&dasm_state, 0);
 
 	zend_jit_align_func(&dasm_state);