Conflicts:
* cmake/Findclang.cmake
* cmake/Findlld.cmake
* cmake/Findllvm.cmake
In master branch, more search paths were added to these files with "12"
in the path. In this commit I updated them to "13".
* src/stage1/codegen.cpp
* src/zig_llvm.cpp
* src/zig_llvm.h
In master branch, ZigLLVMBuildCmpXchg is improved to add
`is_single_threaded`. However, the LLVM 13 C API has this already, and
in the llvm13 branch, ZigLLVMBuildCmpXchg is deleted in favor of the C
API. In this commit I updated stage2 to use the LLVM 13 C API rather
than depending on an improved ZigLLVMBuildCmpXchg.
Additionally, src/target.zig largestAtomicBits needed to be updated to
include the new m68k ISA.
- On Intel Macs, the path is /usr/local/opt/llvm@12
- On Silicon Macs, the path is /opt/homebrew/opt/llvm@12
This makes specifying CMAKE_PREFIX_PATH optional for Homebrew LLVM.
More precisely, aac4fe380d16a957627af2d6e5110ee35ad7e7e7 which is the
current tip of release/13.x.
Immediately following commits are tracking the same LLVM version.
Match package-name case from CMakeLists.txt .
New warning sample:
The package name passed to `find_package_handle_standard_args` (LLVM) does
not match the name of the calling package (llvm). This can lead to
problems in calling code that expects `find_package` result variables
(e.g., `_FOUND`) to follow a certain pattern.
