[llvm-dev] Two-stage build w/ ninja - Tests still use stage1 compiler / linker ?

[Dirk Schroetter via llvm-dev]

Hello Nemanja,

in effect they are. Even in the 2-stage process both ninja and make use the stage1 compiler (with the caveat that there might be a variable which I am missing). But shouldn’t they be built using the stage2 compiler instead ? As that is the compiler we actually will be installing as product of the build and the one that should be tested ?

Thanks,

/Dirk

> Am 06.11.2017 um 12:26 schrieb Nemanja Ivanovic <nemanja.i.ibm at gmail.com>:
> 
> Aren't unit tests always built with the build compiler (which is stage 1 in your case)?
> 
> On Sun, Nov 5, 2017 at 11:53 AM Dirk Schroetter via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote:
> Folks,
> 
> I am using a two-stagesimple build like this one:
> 
> make -G Ninja -DCLANG_ENABLE_BOOTSTRAP=ON ../src
> ninja stage2-check-all
> 
> Stage 1 gets built, and when looking at rules.ninja in the stage2-bins I see:
> 
> rule CXX_COMPILER_AnalysisTests
>   depfile = $DEP_FILE
>   deps = gcc
>   command = <stage1 build dir>./bin/clang++ $DEFINES $INCLUDES $FLAGS -MMD -MT $out -MF $DEP_FILE -o $out -c $in
> 
> This is just an example, in fact all of the CXX_COMPILER_{unit tests} point to the the compiler and linker as per above example.
> 
> Isn’t that the stage1 compiler that is being used here ? I am pretty sure that I am just missing something here. Any pointers of how I can convince cmake to use the just-built (stage2) compiler for the tests ?
> 
> Thanks,
> 
> /Dirk
> 
> 
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