how compile subproject

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#1

Hello,

is it possible to compile just an subproject? For example, just llc or lli?

Cheers.
Beckert.

#2

Hi Beckert,

is it possible to compile just an subproject? For example, just llc or lli?

With CMake you can just type "make llc" from your build directory. I
don't know about the autotools build.

Tim.

#3

You can also do

make ONLY_TOOLS="llc"

Pete

#4

Neither worked. =(

#5

Neither worked. =(

Hmm. Something seems to have gone horribly wrong then. I've just
reproduced Peter's suggestion on the autoconf build and it worked
fine. Perhaps try a clean build out of tree:

CMake:

mkdir my_special_build_dir
cd my_special_build_dir
cmake $PATH_TO_LLVM_SOURCE
make llc

Autotools:
mkdir my_special_build_dir
cd my_special_build_dir
$PATH_TO_LLVM_SOURCE/configure
make ONLY_TOOLS=llc

Both of these have just worked for me, so if they don't work for you
we may need more details: your platform and the files you see but
expect not to if only llc is built are the most obvious ones.

Tim.

#6

Hi, thanks for your answers.

I did:

cd workspace
svn co http://llvm.org/svn/llvm-project/llvm/trunk llvm

cd llvm/

mkdir build

cd build/

…/configure --enable-jit

make # OK, everything went fine.

cd …/lib/Transforms/InstCombine/ # Just to test

vim InstCombineCalls.cpp # added if (0 == 1) return 0; at getPromotedType(…)

cd …/…/…/build/
make ONLY_TOOLS=“lli”

error:

llvm[3]: Compiling InstCombineCalls.cpp for Debug+Asserts build
/home/beckert/workspace/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp: In function ‘llvm::Type* getPromotedType(llvm::Type*)’:
/home/beckert/workspace/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp:26: error: return-statement with no value, in function returning ‘llvm::Type*’
make[3]: ** [/home/beckert/workspace/llvm/build/lib/Transforms/InstCombine/Debug+Asserts/InstCombineCalls.o] Error 1
make[3]: Exiting directory `/home/beckert/workspace/llvm/build/lib/Transforms/InstCombine’

Is InstCombine required for lli?

I’m using:

Debian 6
Gnu Make 3.81
Gnu Autoconf 2.67
Gnu Automake 1.11

thanks.
Beckert.

#7

Beckert Frey <beckert.frey@yahoo.com> writes:

[snip]

Is InstCombine required for lli?

Yes:

$ llvm-config --libs mcjit jit interpreter nativecodegen bitreader asmparser selectiondag

-lLLVMAsmParser -lLLVMBitReader -lLLVMX86CodeGen -lLLVMX86Desc -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils -lLLVMSelectionDAG -lLLVMAsmPrinter -lLLVMMCParser -lLLVMInterpreter -lLLVMJIT -lLLVMCodeGen -lLLVMScalarOpts -lLLVMInstCombine -lLLVMTransformUtils -lLLVMipa -lLLVMAnalysis -lLLVMMCJIT -lLLVMRuntimeDyld -lLLVMExecutionEngine -lLLVMTarget -lLLVMMC -lLLVMObject -lLLVMCore -lLLVMSupport

#8

Uhmm Great!

thanks your all.

#9

When I only change something in code generation, I use a command like this:
  make -C $builddir/lib/CodeGen/ && make install -C $builddir/tools/llc/