authorgravatar for alex@alexrp.comAlex Rønne Petersen <alex@alexrp.com> 2026-04-26 07:10:46+02:00
committergravatar for alex@alexrp.comAlex Rønne Petersen <alex@alexrp.com> 2026-04-26 07:10:46+02:00
log0e8e987deb4edbb3e714844707db4be6b63f4ecf
tree2669dd4905b3a9d751a9b439557dc06e9082d520
parenta83aad152b502ab205f4f6f6c4f70a25b2fa955d
signaturebadge-check Signed by SSH key SHA256:7B/LJ7bpR1eX8aCXSr4mtd5M45VMPKcx9zY8e95b5QM

README: LLVM 21 -> 22

1 files changed, 41 insertions(+), 41 deletions(-)

README.md+41-41
...@@ -47,7 +47,7 @@ Ensure you have the required dependencies:...@@ -47,7 +47,7 @@ Ensure you have the required dependencies:
4747
48 * CMake >= 3.1548 * CMake >= 3.15
49 * System C/C++ Toolchain49 * System C/C++ Toolchain
50 * LLVM, Clang, LLD development libraries, version 21.x, compiled with the50 * LLVM, Clang, LLD development libraries, version 22.x, compiled with the
51 same system C/C++ toolchain.51 same system C/C++ toolchain.
52 - If the system package manager lacks these libraries, or has them misconfigured,52 - If the system package manager lacks these libraries, or has them misconfigured,
53 see below for how to build them from source.53 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...@@ -257,15 +257,15 @@ that you have **no** trailing slash (`/` or `\`) at the end of the
257257
258Install [CMake](https://cmake.org/), version 3.20.0 or newer.258Install [CMake](https://cmake.org/), version 3.20.0 or newer.
259259
260[Download LLVM, Clang, and LLD sources](https://releases.llvm.org/download.html#21.0.0)260[Download LLVM, Clang, and LLD sources](https://releases.llvm.org/download.html#22.0.0)
261The downloads from llvm lead to the github release pages, where the source's261The downloads from llvm lead to the github release pages, where the source's
262will be listed as : `llvm-21.X.X.src.tar.xz`, `clang-21.X.X.src.tar.xz`,262will be listed as : `llvm-22.X.X.src.tar.xz`, `clang-22.X.X.src.tar.xz`,
263`lld-21.X.X.src.tar.xz`. Unzip each to their own directory. Ensure no263`lld-22.X.X.src.tar.xz`. Unzip each to their own directory. Ensure no
264directories have spaces in them. For example:264directories have spaces in them. For example:
265265
266 * `C:\Users\Andy\llvm-21.0.0.src`266 * `C:\Users\Andy\llvm-22.0.0.src`
267 * `C:\Users\Andy\clang-21.0.0.src`267 * `C:\Users\Andy\clang-22.0.0.src`
268 * `C:\Users\Andy\lld-21.0.0.src`268 * `C:\Users\Andy\lld-22.0.0.src`
269269
270Install [Build Tools for Visual Studio270Install [Build Tools for Visual Studio
2712019](https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2019).2712019](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...@@ -298,9 +298,9 @@ Using the start menu, run **x64 Native Tools Command Prompt for VS 2019** and ex
298##### Release Mode298##### Release Mode
299299
300```bat300```bat
301mkdir C:\Users\Andy\llvm-21.0.0.src\build-release301mkdir C:\Users\Andy\llvm-22.0.0.src\build-release
302cd C:\Users\Andy\llvm-21.0.0.src\build-release302cd C:\Users\Andy\llvm-22.0.0.src\build-release
303"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 -303"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 -
304DLLVM_ENABLE_ZLIB=OFF -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_LIBXML2=OFF -DLLVM_USE_CRT_RELEASE=MT304DLLVM_ENABLE_ZLIB=OFF -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_LIBXML2=OFF -DLLVM_USE_CRT_RELEASE=MT
305msbuild /m -p:Configuration=Release INSTALL.vcxproj305msbuild /m -p:Configuration=Release INSTALL.vcxproj
306```306```
...@@ -308,10 +308,10 @@ msbuild /m -p:Configuration=Release INSTALL.vcxproj...@@ -308,10 +308,10 @@ msbuild /m -p:Configuration=Release INSTALL.vcxproj
308##### Debug Mode308##### Debug Mode
309309
310```bat310```bat
311mkdir C:\Users\Andy\llvm-21.0.0.src\build-debug311mkdir C:\Users\Andy\llvm-22.0.0.src\build-debug
312cd C:\Users\Andy\llvm-21.0.0.src\build-debug312cd C:\Users\Andy\llvm-22.0.0.src\build-debug
313"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 -313"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 -
314DLLVM_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=MTd314DLLVM_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
315msbuild /m INSTALL.vcxproj315msbuild /m INSTALL.vcxproj
316```316```
317317
...@@ -322,18 +322,18 @@ Using the start menu, run **x64 Native Tools Command Prompt for VS 2019** and ex...@@ -322,18 +322,18 @@ Using the start menu, run **x64 Native Tools Command Prompt for VS 2019** and ex
322##### Release Mode322##### Release Mode
323323
324```bat324```bat
325mkdir C:\Users\Andy\lld-21.0.0.src\build-release325mkdir C:\Users\Andy\lld-22.0.0.src\build-release
326cd C:\Users\Andy\lld-21.0.0.src\build-release326cd C:\Users\Andy\lld-22.0.0.src\build-release
327"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=MT327"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
328msbuild /m -p:Configuration=Release INSTALL.vcxproj328msbuild /m -p:Configuration=Release INSTALL.vcxproj
329```329```
330330
331##### Debug Mode331##### Debug Mode
332332
333```bat333```bat
334mkdir C:\Users\Andy\lld-21.0.0.src\build-debug334mkdir C:\Users\Andy\lld-22.0.0.src\build-debug
335cd C:\Users\Andy\lld-21.0.0.src\build-debug335cd C:\Users\Andy\lld-22.0.0.src\build-debug
336"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=MTd336"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
337msbuild /m INSTALL.vcxproj337msbuild /m INSTALL.vcxproj
338```338```
339339
...@@ -344,18 +344,18 @@ Using the start menu, run **x64 Native Tools Command Prompt for VS 2019** and ex...@@ -344,18 +344,18 @@ Using the start menu, run **x64 Native Tools Command Prompt for VS 2019** and ex
344##### Release Mode344##### Release Mode
345345
346```bat346```bat
347mkdir C:\Users\Andy\clang-21.0.0.src\build-release347mkdir C:\Users\Andy\clang-22.0.0.src\build-release
348cd C:\Users\Andy\clang-21.0.0.src\build-release348cd C:\Users\Andy\clang-22.0.0.src\build-release
349"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=MT349"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
350msbuild /m -p:Configuration=Release INSTALL.vcxproj350msbuild /m -p:Configuration=Release INSTALL.vcxproj
351```351```
352352
353##### Debug Mode353##### Debug Mode
354354
355```bat355```bat
356mkdir C:\Users\Andy\clang-21.0.0.src\build-debug356mkdir C:\Users\Andy\clang-22.0.0.src\build-debug
357cd C:\Users\Andy\clang-21.0.0.src\build-debug357cd C:\Users\Andy\clang-22.0.0.src\build-debug
358"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=MTd358"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
359msbuild /m INSTALL.vcxproj359msbuild /m INSTALL.vcxproj
360```360```
361361
...@@ -371,14 +371,14 @@ This is the generally recommended approach....@@ -371,14 +371,14 @@ This is the generally recommended approach.
371371
372```sh372```sh
373cd ~/Downloads373cd ~/Downloads
374git clone --depth 1 --branch release/21.x https://github.com/llvm/llvm-project llvm-project-21374git clone --depth 1 --branch release/22.x https://github.com/llvm/llvm-project llvm-project-22
375cd llvm-project-21375cd llvm-project-22
376git checkout release/21.x376git checkout release/22.x
377377
378mkdir build-release378mkdir build-release
379cd build-release379cd build-release
380cmake ../llvm \380cmake ../llvm \
381 -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm21-assert \381 -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm22-assert \
382 -DCMAKE_BUILD_TYPE=Release \382 -DCMAKE_BUILD_TYPE=Release \
383 -DLLVM_ENABLE_PROJECTS="lld;clang" \383 -DLLVM_ENABLE_PROJECTS="lld;clang" \
384 -DLLVM_ENABLE_LIBXML2=OFF \384 -DLLVM_ENABLE_LIBXML2=OFF \
...@@ -398,16 +398,16 @@ others are in Release mode....@@ -398,16 +398,16 @@ others are in Release mode.
398398
399```sh399```sh
400cd ~/Downloads400cd ~/Downloads
401git clone --depth 1 --branch release/21.x https://github.com/llvm/llvm-project llvm-project-21401git clone --depth 1 --branch release/22.x https://github.com/llvm/llvm-project llvm-project-22
402cd llvm-project-21402cd llvm-project-22
403git checkout release/21.x403git checkout release/22.x
404404
405# LLVM405# LLVM
406mkdir llvm/build-debug406mkdir llvm/build-debug
407cd llvm/build-debug407cd llvm/build-debug
408cmake .. \408cmake .. \
409 -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm21-debug \409 -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm22-debug \
410 -DCMAKE_PREFIX_PATH=$HOME/local/llvm21-debug \410 -DCMAKE_PREFIX_PATH=$HOME/local/llvm22-debug \
411 -DCMAKE_BUILD_TYPE=Debug \411 -DCMAKE_BUILD_TYPE=Debug \
412 -DLLVM_ENABLE_LIBXML2=OFF \412 -DLLVM_ENABLE_LIBXML2=OFF \
413 -DLLVM_ENABLE_TERMINFO=OFF \413 -DLLVM_ENABLE_TERMINFO=OFF \
...@@ -421,8 +421,8 @@ cd ../.....@@ -421,8 +421,8 @@ cd ../..
421mkdir lld/build-debug421mkdir lld/build-debug
422cd lld/build-debug422cd lld/build-debug
423cmake .. \423cmake .. \
424 -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm21-debug \424 -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm22-debug \
425 -DCMAKE_PREFIX_PATH=$HOME/local/llvm21-debug \425 -DCMAKE_PREFIX_PATH=$HOME/local/llvm22-debug \
426 -DCMAKE_BUILD_TYPE=Release \426 -DCMAKE_BUILD_TYPE=Release \
427 -DLLVM_PARALLEL_LINK_JOBS=1 \427 -DLLVM_PARALLEL_LINK_JOBS=1 \
428 -DCMAKE_CXX_STANDARD=17 \428 -DCMAKE_CXX_STANDARD=17 \
...@@ -434,8 +434,8 @@ cd ../.....@@ -434,8 +434,8 @@ cd ../..
434mkdir clang/build-debug434mkdir clang/build-debug
435cd clang/build-debug435cd clang/build-debug
436cmake .. \436cmake .. \
437 -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm21-debug \437 -DCMAKE_INSTALL_PREFIX=$HOME/local/llvm22-debug \
438 -DCMAKE_PREFIX_PATH=$HOME/local/llvm21-debug \438 -DCMAKE_PREFIX_PATH=$HOME/local/llvm22-debug \
439 -DCMAKE_BUILD_TYPE=Release \439 -DCMAKE_BUILD_TYPE=Release \
440 -DLLVM_PARALLEL_LINK_JOBS=1 \440 -DLLVM_PARALLEL_LINK_JOBS=1 \
441 -DLLVM_INCLUDE_TESTS=OFF \441 -DLLVM_INCLUDE_TESTS=OFF \
...@@ -445,8 +445,8 @@ cd ../.....@@ -445,8 +445,8 @@ cd ../..
445```445```
446446
447Then add to your Zig CMake line that you got from the README.md:447Then add to your Zig CMake line that you got from the README.md:
448`-DCMAKE_PREFIX_PATH=$HOME/local/llvm21-debug` or448`-DCMAKE_PREFIX_PATH=$HOME/local/llvm22-debug` or
449`-DCMAKE_PREFIX_PATH=$HOME/local/llvm21-assert` depending on whether you want449`-DCMAKE_PREFIX_PATH=$HOME/local/llvm22-assert` depending on whether you want
450Debug or Release LLVM.450Debug or Release LLVM.
451451
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