v8/test/unittests/base
Clemens Hammacher a32cd1c710 Reland "[base] Introduce RoundUpToPowerOfTwo64"
With fix for architectures where x<<32 != x.

Original change's description:
> [base] Introduce RoundUpToPowerOfTwo64
>
> And fix RoundUpToPowerOfTwo32 to return 1 for the input 0.
> 0 is no power of two.
> Beside being the correct value, this also avoids a special case in the
> (new) fast path using the number of leading zeros.
>
> R=​jochen@chromium.org, ahaas@chromium.org
>
> Change-Id: I87173495e13b334954bcebbb55724fb666dfa809
> Reviewed-on: https://chromium-review.googlesource.com/488143
> Reviewed-by: Jochen Eisinger <jochen@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#44925}

TBR=ahaas@chromium.org,jochen@chromium.org,clemensh@chromium.org,v8-reviews@googlegroups.com

Change-Id: I7b4719d84a419bb7b38e3b5c9d6d183275087ace
Reviewed-on: https://chromium-review.googlesource.com/488981
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44951}
2017-04-27 17:43:38 +00:00
..
platform Enable ThreadTicks on Windows. 2016-06-30 15:36:08 +00:00
utils Move unit tests to test/unittests. 2014-10-01 08:34:25 +00:00
atomic-utils-unittest.cc Fix more -Wsign-compare warnings in heap, mips, base, etc. 2016-11-11 14:56:10 +00:00
bits-unittest.cc Reland "[base] Introduce RoundUpToPowerOfTwo64" 2017-04-27 17:43:38 +00:00
cpu-unittest.cc [x86] Disable AVX unless the operating system explicitly claims to support it. 2015-01-27 09:59:24 +00:00
division-by-constant-unittest.cc Remove v8stdint.h, it doesn't serve a purpose anymore. 2014-10-21 08:25:14 +00:00
flags-unittest.cc Remove v8stdint.h, it doesn't serve a purpose anymore. 2014-10-21 08:25:14 +00:00
functional-unittest.cc [turbofan] Fix HashCode/Equals for floating point operators. 2014-10-08 07:32:07 +00:00
ieee754-unittest.cc [builtins] Unify most of the remaining Math builtins. 2016-07-01 11:13:02 +00:00
iterator-unittest.cc Avoid signed/unsigned warning in VC++ 2017 builds 2017-04-24 19:29:59 +00:00
logging-unittest.cc Fix CHECK_OP implementation in Release builds 2017-01-20 15:28:54 +00:00
sys-info-unittest.cc Remove NaCl support. 2016-07-27 07:50:31 +00:00