commit 0e8e987deb4edbb3e714844707db4be6b63f4ecf (tree)
parent a83aad152b502ab205f4f6f6c4f70a25b2fa955d
Author: Alex Rønne Petersen <alex@alexrp.com>
Date: Sun, 26 Apr 2026 07:10:46 +0200
README: LLVM 21 -> 22
Diffstat:
| M | README.md | | | 82 | ++++++++++++++++++++++++++++++++++++++++---------------------------------------- |
1 file changed, 41 insertions(+), 41 deletions(-)
diff --git a/README.md b/README.md
@@ -47,7 +47,7 @@ Ensure you have the required dependencies:
* CMake >= 3.15
* System C/C++ Toolchain
- * LLVM, Clang, LLD development libraries, version 21.x, compiled with the
+ * LLVM, Clang, LLD development libraries, version 22.x, compiled with the
same system C/C++ toolchain.
- If the system package manager lacks these libraries, or has them misconfigured,
see below for how to build them from source.
@@ -257,15 +257,15 @@ that you have **no** trailing slash (`/` or `\`) at the end of the
Install [CMake](https://cmake.org/), version 3.20.0 or newer.
-[Download LLVM, Clang, and LLD sources](https://releases.llvm.org/download.html#21.0.0)
+[Download LLVM, Clang, and LLD sources](https://releases.llvm.org/download.html#22.0.0)
The downloads from llvm lead to the github release pages, where the source's
-will be listed as : `llvm-21.X.X.src.tar.xz`, `clang-21.X.X.src.tar.xz`,
-`lld-21.X.X.src.tar.xz`. Unzip each to their own directory. Ensure no
+will be listed as : `llvm-22.X.X.src.tar.xz`, `clang-22.X.X.src.tar.xz`,
+`lld-22.X.X.src.tar.xz`. Unzip each to their own directory. Ensure no
directories have spaces in them. For example:
- * `C:\Users\Andy\llvm-21.0.0.src`
- * `C:\Users\Andy\clang-21.0.0.src`
- * `C:\Users\Andy\lld-21.0.0.src`
+ * `C:\Users\Andy\llvm-22.0.0.src`
+ * `C:\Users\Andy\clang-22.0.0.src`
+ * `C:\Users\Andy\lld-22.0.0.src`
Install [Build Tools for Visual Studio
2019](https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2019).
@@ -298,9 +298,9 @@ Using the start menu, run **x64 Native Tools Command Prompt for VS 2019** and ex
##### Release Mode
```bat
-mkdir C:\Users\Andy\llvm-21.0.0.src\build-release
-cd C:\Users\Andy\llvm-21.0.0.src\build-release
-"c:\Program Files\CMake\bin\cmake.exe" .. -Thost=x64 -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX=C:\Users\Andy\llvm+clang+lld-21.0.0-x86_64-windows-msvc-release-mt -DCMAKE_PREFIX_PATH=C:\Users\Andy\llvm+clang+lld-21.0.0-x86_64-windows-msvc-release-mt -
+mkdir C:\Users\Andy\llvm-22.0.0.src\build-release
+cd C:\Users\Andy\llvm-22.0.0.src\build-release
+"c:\Program Files\CMake\bin\cmake.exe" .. -Thost=x64 -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX=C:\Users\Andy\llvm+clang+lld-22.0.0-x86_64-windows-msvc-release-mt -DCMAKE_PREFIX_PATH=C:\Users\Andy\llvm+clang+lld-22.0.0-x86_64-windows-msvc-release-mt -
DLLVM_ENABLE_ZLIB=OFF -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_LIBXML2=OFF -DLLVM_USE_CRT_RELEASE=MT
msbuild /m -p:Configuration=Release INSTALL.vcxproj
```
@@ -308,10 +308,10 @@ msbuild /m -p:Configuration=Release INSTALL.vcxproj
##### Debug Mode
```bat
-mkdir C:\Users\Andy\llvm-21.0.0.src\build-debug
-cd C:\Users\Andy\llvm-21.0.0.src\build-debug
-"c:\Program Files\CMake\bin\cmake.exe" .. -Thost=x64 -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX=C:\Users\andy\llvm+clang+lld-21.0.0-x86_64-windows-msvc-debug -
-DLLVM_ENABLE_ZLIB=OFF -DCMAKE_PREFIX_PATH=C:\Users\andy\llvm+clang+lld-21.0.0-x86_64-windows-msvc-debug -DCMAKE_BUILD_TYPE=Debug -DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD="AVR" -DLLVM_ENABLE_LIBXML2=OFF -DLLVM_USE_CRT_DEBUG=MTd
+mkdir C:\Users\Andy\llvm-22.0.0.src\build-debug
+cd C:\Users\Andy\llvm-22.0.0.src\build-debug
+"c:\Program Files\CMake\bin\cmake.exe" .. -Thost=x64 -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX=C:\Users\andy\llvm+clang+lld-22.0.0-x86_64-windows-msvc-debug -
+DLLVM_ENABLE_ZLIB=OFF -DCMAKE_PREFIX_PATH=C:\Users\andy\llvm+clang+lld-22.0.0-x86_64-windows-msvc-debug -DCMAKE_BUILD_TYPE=Debug -DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD="AVR" -DLLVM_ENABLE_LIBXML2=OFF -DLLVM_USE_CRT_DEBUG=MTd
msbuild /m INSTALL.vcxproj
```
@@ -322,18 +322,18 @@ Using the start menu, run **x64 Native Tools Command Prompt for VS 2019** and ex
##### Release Mode
```bat
-mkdir C:\Users\Andy\lld-21.0.0.src\build-release
-cd C:\Users\Andy\lld-21.0.0.src\build-release
-"c:\Program Files\CMake\bin\cmake.exe" .. -Thost=x64 -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX=C:\Users\Andy\llvm+clang+lld-14.0.6-x86_64-windows-msvc-release-mt -DCMAKE_PREFIX_PATH=C:\Users\Andy\llvm+clang+lld-21.0.0-x86_64-windows-msvc-release-mt -DCMAKE_BUILD_TYPE=Release -DLLVM_USE_CRT_RELEASE=MT
+mkdir C:\Users\Andy\lld-22.0.0.src\build-release
+cd C:\Users\Andy\lld-22.0.0.src\build-release
+"c:\Program Files\CMake\bin\cmake.exe" .. -Thost=x64 -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX=C:\Users\Andy\llvm+clang+lld-14.0.6-x86_64-windows-msvc-release-mt -DCMAKE_PREFIX_PATH=C:\Users\Andy\llvm+clang+lld-22.0.0-x86_64-windows-msvc-release-mt -DCMAKE_BUILD_TYPE=Release -DLLVM_USE_CRT_RELEASE=MT
msbuild /m -p:Configuration=Release INSTALL.vcxproj
```
##### Debug Mode
```bat
-mkdir C:\Users\Andy\lld-21.0.0.src\build-debug
-cd C:\Users\Andy\lld-21.0.0.src\build-debug
-"c:\Program Files\CMake\bin\cmake.exe" .. -Thost=x64 -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX=C:\Users\andy\llvm+clang+lld-21.0.0-x86_64-windows-msvc-debug -DCMAKE_PREFIX_PATH=C:\Users\andy\llvm+clang+lld-21.0.0-x86_64-windows-msvc-debug -DCMAKE_BUILD_TYPE=Debug -DLLVM_USE_CRT_DEBUG=MTd
+mkdir C:\Users\Andy\lld-22.0.0.src\build-debug
+cd C:\Users\Andy\lld-22.0.0.src\build-debug
+"c:\Program Files\CMake\bin\cmake.exe" .. -Thost=x64 -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX=C:\Users\andy\llvm+clang+lld-22.0.0-x86_64-windows-msvc-debug -DCMAKE_PREFIX_PATH=C:\Users\andy\llvm+clang+lld-22.0.0-x86_64-windows-msvc-debug -DCMAKE_BUILD_TYPE=Debug -DLLVM_USE_CRT_DEBUG=MTd
msbuild /m INSTALL.vcxproj
```
@@ -344,18 +344,18 @@ Using the start menu, run **x64 Native Tools Command Prompt for VS 2019** and ex
##### Release Mode
```bat
-mkdir C:\Users\Andy\clang-21.0.0.src\build-release
-cd C:\Users\Andy\clang-21.0.0.src\build-release
-"c:\Program Files\CMake\bin\cmake.exe" .. -Thost=x64 -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX=C:\Users\Andy\llvm+clang+lld-21.0.0-x86_64-windows-msvc-release-mt -DCMAKE_PREFIX_PATH=C:\Users\Andy\llvm+clang+lld-21.0.0-x86_64-windows-msvc-release-mt -DCMAKE_BUILD_TYPE=Release -DLLVM_USE_CRT_RELEASE=MT
+mkdir C:\Users\Andy\clang-22.0.0.src\build-release
+cd C:\Users\Andy\clang-22.0.0.src\build-release
+"c:\Program Files\CMake\bin\cmake.exe" .. -Thost=x64 -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX=C:\Users\Andy\llvm+clang+lld-22.0.0-x86_64-windows-msvc-release-mt -DCMAKE_PREFIX_PATH=C:\Users\Andy\llvm+clang+lld-22.0.0-x86_64-windows-msvc-release-mt -DCMAKE_BUILD_TYPE=Release -DLLVM_USE_CRT_RELEASE=MT
msbuild /m -p:Configuration=Release INSTALL.vcxproj
```
##### Debug Mode
```bat
-mkdir C:\Users\Andy\clang-21.0.0.src\build-debug
-cd C:\Users\Andy\clang-21.0.0.src\build-debug
-"c:\Program Files\CMake\bin\cmake.exe" .. -Thost=x64 -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX=C:\Users\andy\llvm+clang+lld-21.0.0-x86_64-windows-msvc-debug -DCMAKE_PREFIX_PATH=C:\Users\andy\llvm+clang+lld-21.0.0-x86_64-windows-msvc-debug -DCMAKE_BUILD_TYPE=Debug -DLLVM_USE_CRT_DEBUG=MTd
+mkdir C:\Users\Andy\clang-22.0.0.src\build-debug
+cd C:\Users\Andy\clang-22.0.0.src\build-debug
+"c:\Program Files\CMake\bin\cmake.exe" .. -Thost=x64 -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX=C:\Users\andy\llvm+clang+lld-22.0.0-x86_64-windows-msvc-debug -DCMAKE_PREFIX_PATH=C:\Users\andy\llvm+clang+lld-22.0.0-x86_64-windows-msvc-debug -DCMAKE_BUILD_TYPE=Debug -DLLVM_USE_CRT_DEBUG=MTd
msbuild /m INSTALL.vcxproj
```
@@ -371,14 +371,14 @@ This is the generally recommended approach.
```sh
cd ~/Downloads
-git clone --depth 1 --branch release/21.x https://github.com/llvm/llvm-project llvm-project-21
-cd llvm-project-21
-git checkout release/21.x
+git clone --depth 1 --branch release/22.x https://github.com/llvm/llvm-project llvm-project-22
+cd llvm-project-22
+git checkout release/22.x
mkdir build-release
cd build-release
cmake ../llvm \
- -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm21-assert \
+ -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm22-assert \
-DCMAKE_BUILD_TYPE=Release \
-DLLVM_ENABLE_PROJECTS="lld;clang" \
-DLLVM_ENABLE_LIBXML2=OFF \
@@ -398,16 +398,16 @@ others are in Release mode.
```sh
cd ~/Downloads
-git clone --depth 1 --branch release/21.x https://github.com/llvm/llvm-project llvm-project-21
-cd llvm-project-21
-git checkout release/21.x
+git clone --depth 1 --branch release/22.x https://github.com/llvm/llvm-project llvm-project-22
+cd llvm-project-22
+git checkout release/22.x
# LLVM
mkdir llvm/build-debug
cd llvm/build-debug
cmake .. \
- -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm21-debug \
- -DCMAKE_PREFIX_PATH=$HOME/local/llvm21-debug \
+ -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm22-debug \
+ -DCMAKE_PREFIX_PATH=$HOME/local/llvm22-debug \
-DCMAKE_BUILD_TYPE=Debug \
-DLLVM_ENABLE_LIBXML2=OFF \
-DLLVM_ENABLE_TERMINFO=OFF \
@@ -421,8 +421,8 @@ cd ../..
mkdir lld/build-debug
cd lld/build-debug
cmake .. \
- -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm21-debug \
- -DCMAKE_PREFIX_PATH=$HOME/local/llvm21-debug \
+ -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm22-debug \
+ -DCMAKE_PREFIX_PATH=$HOME/local/llvm22-debug \
-DCMAKE_BUILD_TYPE=Release \
-DLLVM_PARALLEL_LINK_JOBS=1 \
-DCMAKE_CXX_STANDARD=17 \
@@ -434,8 +434,8 @@ cd ../..
mkdir clang/build-debug
cd clang/build-debug
cmake .. \
- -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm21-debug \
- -DCMAKE_PREFIX_PATH=$HOME/local/llvm21-debug \
+ -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm22-debug \
+ -DCMAKE_PREFIX_PATH=$HOME/local/llvm22-debug \
-DCMAKE_BUILD_TYPE=Release \
-DLLVM_PARALLEL_LINK_JOBS=1 \
-DLLVM_INCLUDE_TESTS=OFF \
@@ -445,8 +445,8 @@ cd ../..
```
Then add to your Zig CMake line that you got from the README.md:
-`-DCMAKE_PREFIX_PATH=$HOME/local/llvm21-debug` or
-`-DCMAKE_PREFIX_PATH=$HOME/local/llvm21-assert` depending on whether you want
+`-DCMAKE_PREFIX_PATH=$HOME/local/llvm22-debug` or
+`-DCMAKE_PREFIX_PATH=$HOME/local/llvm22-assert` depending on whether you want
Debug or Release LLVM.
