[php-src] Issue #7854: Segfault with built-in webserver on one-arm match statement

Issue: https://github.com/php/php-src/issues/7854 Comment Author: Firehed Is this what you're looking for? ``` $ lldb (lldb) target create php Current executable set to 'php' (x86_64). (lldb) settings set -- target.run-args "-S" "0.0.0.0:12345" "repro.php" (lldb) run Process 33410 launched: '/usr/local/bin/php' (x86_64) [Wed Dec 29 14:48:56 2021] PHP 8.1.0 Development Server (http://0.0.0.0:12345) started [Wed Dec 29 14:49:00 2021] 127.0.0.1:62525 Accepted Process 33410 stopped * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x8) frame #0: 0x00000001003e311d php`sccp_visit_instr + 2969 php`sccp_visit_instr: -> 0x1003e311d <+2969>: movb 0x8(%r13), %dl 0x1003e3121 <+2973>: cmpb $-0x1, %dl 0x1003e3124 <+2976>: je 0x1003e32c4 ; <+3392> 0x1003e312a <+2982>: movb 0x8(%r12), %cl Target 0: (php) stopped. (lldb) ``` I tried to follow what was done [here](https://bugs.php.net/bug.php?id=81006)