tree 4beafa51188de84c015606889c19c9726977cb7d
parent 5ee234a78dbaa81830efed1038161a40ea43d773
author Jan Voung <jvoung@chromium.org> 1410545147 -0700
committer Jan Voung <jvoung@chromium.org> 1410545147 -0700

Switch to llvm::findFirstSet instead of ffs since mingw doesn't have ffs.

ffs() vs findFirstSet() are slightly different, indexing is
0-based instead of 1-based.

Example mingw error:
http://build.chromium.org/p/tryserver.nacl/builders/nacl-toolchain-win7-pnacl-x86_64/builds/1920/steps/llvm_i686_w64_mingw32%20%28build%29/logs/stdio

BUG=none
R=stichnot@chromium.org

Review URL: https://codereview.chromium.org/563303002