[llvm-dev] RFC: Adding IR Transformation examples/tutorial code to llvm-project

[David Greene via llvm-dev]

Michael Kruse via llvm-dev <llvm-dev at lists.llvm.org> writes:

> Am Fr., 25. Okt. 2019 um 17:32 Uhr schrieb Florian Hahn
> <florian_hahn at apple.com>:
>>> 2.Chris Bieneman seeks to simplify the cmake build system, including
>>> significantly reducing the number of configuration parameters and
>>> making "make all" really make everything, including examples. This
>>> would make the overall configure process slower even when not
>>> interested in the tutorials.
>>
>>
>> The suggested approach does not introduce any new options/variables, it just adds an additional definition, if the existing LLVM_BUILD_EXAMPLES=On. So this should not interfere with reducing the overall options. Whatever solution will be applied to all examples should also work for the IR pass examples.
>
> I think he would like to remove LLVM_BUILD_EXAMPLES altogether. That
> is, any "cmake" will execute any CMakeLists.txt, "make all" will
> always build TutorialSimplyCFG and any execution of `opt` will call
> initializeExampleIRTransforms.

Wouldn't this help to keep the examples up-to-date?  If they fail to
build due to API changes we'd know pretty quick.

                  -David