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| author | Mark Mendell <mark.p.mendell@intel.com> | 2015-08-12 21:16:41 -0400 |
|---|---|---|
| committer | Roland Levillain <rpl@google.com> | 2015-08-17 12:36:34 +0100 |
| commit | d5897678eb555a797d4e84e07814d79f0e0bb465 (patch) | |
| tree | bcf7df2382200011fb43a59f49d008852368b355 /compiler/optimizing/graph_visualizer.cc | |
| parent | 8ecc1357e2c682165467ca8e10c7a748f7554df2 (diff) | |
Implement CountLeadingZeros for x86
Generate Long and Integer numberOfLeadingZeros for x86 and x86_64. Uses
'bsr' instruction to find the first one bit, and then corrects the
result.
Added some more tests with constant values to test constant folding.
Also add a runtime test with 0 as the input.
Change-Id: I920b21bb00069bccf5f921f8f87a77e334114926
Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>
Diffstat (limited to 'compiler/optimizing/graph_visualizer.cc')
0 files changed, 0 insertions, 0 deletions