tree 0e400cbdbd0b5dd8eee77d37c6e5373f5f2e1d3e
parent d968a6f29e92230ee118ec9cdfff0329bf83d602
author mtklein <mtklein@chromium.org> 1427398349 -0700
committer Commit bot <commit-bot@chromium.org> 1427398349 -0700

SkPMFloat::trunc()

Add and test trunc(), which is what get() used to be before rounding.
Using trunc() is a ~40% speedup on our linear gradient bench.

#neon #floats
BUG=skia:3592
#n5
#n9
CQ_INCLUDE_TRYBOTS=client.skia.android:Test-Android-Nexus5-Adreno330-Arm7-Debug-Trybot;client.skia.android:Test-Android-Nexus9-TegraK1-Arm64-Release-Trybot

Review URL: https://codereview.chromium.org/1032243002