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Summary: Particularly, with --delete, this can be very useful for testing new optimizations on some hotspots, without having to run it on the whole application. E.g. as such: ``` llvm-extract app.bc --recursive --rfunc .*hotspot.* > hotspot.bc llvm-extract app.bc --recursive --delete --rfunc .*hotspot.* > residual.bc llc -filetype=obj residual.bc > residual.o llc -filetype=obj hotspot.bc > hotspot.o cc -o app residual.o hotspot.o ``` Reviewed By: davide Differential Revision: https://reviews.llvm.org/D31722 llvm-svn: 299706
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