PEP 744: Add link to slides and clarification about LLVM dependency (GH-3850)

Author: savannahostrowski

peps/pep-0744.rst

@@ -1,6 +1,7 @@
 PEP: 744
 Title: JIT Compilation
-Author: Brandt Bucher <brandt@python.org>
+Author: Brandt Bucher <brandt@python.org>,
+        Savannah Ostrowski <savannahostrowski@gmail.com>,
 Discussions-To: https://discuss.python.org/t/pep-744-jit-compilation/50756
 Status: Draft
 Type: Informational
@@ -33,7 +34,7 @@ the following resources:
   JIT at the 2023 CPython Core Developer Sprint. It includes relevant
   background, a light technical introduction to the "copy-and-patch" technique
   used, and an open discussion of its design amongst the core developers
-  present.
+  present. Slides for this talk can be found on `GitHub <https://github.com/brandtbucher/brandtbucher/blob/master/2023/10/10/a_jit_compiler_for_cpython.pdf>`__.
 
 - The `open access paper <https://dl.acm.org/doi/10.1145/3485513>`__ originally
   describing copy-and-patch.
@@ -534,6 +535,12 @@ executable. These issues are no longer present in the current design.
 Dependencies
 ------------
 
+At the time of writing, the JIT has a build-time dependency on LLVM. LLVM
+is used to compile individual micro-op instructions into blobs of machine code,
+which are then linked together to form the JIT's templates. These templates are 
+used to build CPython itself. The JIT has no runtime dependency on LLVM and is 
+therefore not at all exposed as a dependency to end users.
+
 Building the JIT adds between 3 and 60 seconds to the build process, depending
 on platform. It is only rebuilt whenever the generated files become out-of-date,
 so only those who are actively developing the main interpreter loop will be