benchmarking - Modifying the compilation process with SPEC to use LLVM -

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i working on running llvm passes , benchmark usefulness using spec 2006 cpu benchmark suite. however, i've not figured out how modify spec setup other use llvm-gcc output llvm bitcode. here i'd modify workflow of spec do:

compile .o files llvm llvm-bytecode

llvm-gcc -emit-llvm *.c

for each .o file, run opt (llvm's optimization pass):

opt -adce -mem2reg cfline.o

link llvm-link:

llvm-link *.o -o out.o.linked

turn llvm bytecode assembly

llc out.o.linked

and turn executable code:

gcc out.o.linked -o out.executable

is there way can this? know can edit .cfg files emit llvm, don't know how choose different linking/pre-linking procedure.

thanks!

llvm has test-suite subproject knows how build , run spec. see docs more info.


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