Fixed according to feedback

Author: dstogov

ext/opcache/jit/README-IR.md

@@ -4,7 +4,7 @@ New JIT implementation
 This branch provides a new JIT implementation based on [IR - Lightweight
 JIT Compilation Framework](https://github.com/dstogov/ir).
 
-Despite of the PHP 8.* JIT approach, that generates native code directly from
+As opposed to the PHP 8.* JIT approach that generates native code directly from
 PHP byte-code, this implementation generates intermediate representation (IR)
 and delegates all lower-level tasks to the IR Framework. IR for JIT is like an
 AST for compiler.
@@ -22,58 +22,11 @@ Disadvantages:
 - JIT compilation becomes slower (this is almost invisible for tracing
   JIT, but function JIT compilation of Wordpress becomes 4 times slower)
 
-IR Framework is included into PHP as a GIT submodule. It should be fetched by
-
-``git submodule update --init --recursive``
+The necessary part of the IR Framework is embedded into php-src. So, the PR
+doesn't introduce new dependencies.
 
 The new JIT implementation successfully passes all CI workflows, but it's still
 not mature and may cause failures. To reduce risks, this patch doesn't remove
 the old JIT implementation (that is the same as PHP-8.3 JIT). It's possible
 to build PHP with the old JIT by configuring with **--disable-opcache-jit-ir**.
 In the future the old implementation should be removed.
-
-Building and Testing
-====================
-
-Install pre-requested libraries. PHP and their extensions may require different libraries.
-JIT itself needs just **libcapstone** to produce disassembler output.
-
-```
-sudo dbf install capstone-devel
-```
-
-Build PHP
-
-```
-git clone -b php-ir --single-branch git@github.com:dstogov/php-src.git php-ir
-cd php-ir
-git submodule update --init --recursive
-./buildconf --force
-mkdir install
-./configure --with-capstone --prefix=`pwd`/install --with-config-file-path=`pwd`/install/etc
-make
-make install
-mkdir install/etc
-cat > install/etc/php.ini <<EOL
-zend_extension=opcache.so
-opcache.enable=1
-opcache.enable_cli=1
-opcache.optimization_level=-1
-opcache.jit_buffer_size=32M
-opcache.jit=tracing
-opcache.huge_code_pages=1
-EOL
-```
-
-Check if opcache s loaded
-
-```
-sapi/cli/php -v | grep -i opcache
-```
-
-See JIT in action
-
-```
-sapi/cli/php -d opcache.jit=tracing -d opcache.jit_debug=1 Zend/bench.php
-sapi/cli/php -d opcache.jit=function -d opcache.jit_debug=1 Zend/bench.php
-```