tree 499ff29937b5dde70162e56de6919f31b5a0350f
parent bc8de7b94cb100522f44ed4b2e942c362201c089
author Mathias Rav <mathiasr@google.com> 1528367901 +0200
committer Mathias Rav <mathiasr@google.com> 1528367901 +0200

Add programs to compare R8 and ProGuard output sizes

The script r8lib_size_compare.py runs R8 and ProGuard on r8.jar to
produce a minified r8lib.jar that keeps everything marked @Keep.

By default, inlining is disabled in both R8 and ProGuard to make
method-by-method comparison much easier. Pass --inlining to enable
inlining.

By default, the script only shows methods where R8's DEX output is 5 or
more instructions larger than ProGuard+D8's output. Pass --threshold 0
to display all methods.

* Pass extra keyword arguments from build_r8lib() to toolhelper.run() to
  allow disabling inlining in R8 by passing the system property
  -Dcom.android.tools.r8.disableinlining=1 to the JVM.

Change-Id: I35e2b0742c39a4a09aa61bc2bbc857cca8594843