[llvm] edbe8fa - [llvm][Docs] Update guide to include ``pip install lit`` (#106526)

[via llvm-commits]

Author: MichelleCDjunaidi
Date: 2024-09-10T10:13:04+01:00
New Revision: edbe8faba12dd27e48411e3e0b57b19b0dc03929

URL: https://github.com/llvm/llvm-project/commit/edbe8faba12dd27e48411e3e0b57b19b0dc03929
DIFF: https://github.com/llvm/llvm-project/commit/edbe8faba12dd27e48411e3e0b57b19b0dc03929.diff

LOG: [llvm][Docs] Update guide to include ``pip install lit`` (#106526)

Also updates and clarifies which version would be installed.

As per
https://discourse.llvm.org/t/information-on-lit-is-outdated/76498.

Added: 
    

Modified: 
    llvm/docs/TestSuiteGuide.md

Removed: 
    


################################################################################
diff  --git a/llvm/docs/TestSuiteGuide.md b/llvm/docs/TestSuiteGuide.md
index 19db0ee7d01b82..35984bd6f7b3b3 100644
--- a/llvm/docs/TestSuiteGuide.md
+++ b/llvm/docs/TestSuiteGuide.md
@@ -9,10 +9,10 @@ Quickstart
 
    ```bash
    % <path to llvm build>/bin/llvm-lit --version
-   lit 0.8.0dev
+   lit 20.0.0dev
    ```
 
-   An alternative is installing it as a python package in a python virtual
+   An alternative is installing it as a Python package in a Python virtual
    environment:
 
    ```bash
@@ -20,9 +20,24 @@ Quickstart
    % . .venv/bin/activate
    % pip install git+https://github.com/llvm/llvm-project.git#subdirectory=llvm/utils/lit
    % lit --version
-   lit 0.8.0dev
+   lit 20.0.0dev
    ```
 
+   Installing the official Python release of lit in a Python virtual
+   environment could also work. This will install the most recent 
+   release of lit:
+
+   ```bash
+   % python3 -m venv .venv
+   % . .venv/bin/activate
+   % pip install lit
+   % lit --version
+   lit 18.1.8
+   ```
+
+   Please note that recent tests may rely on features not in the latest released lit. 
+   If in doubt, try one of the previous methods.
+
 2. Check out the `test-suite` module with:
 
    ```bash