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| author | David Brazdil <dbrazdil@google.com> | 2015-04-03 16:02:44 +0100 |
|---|---|---|
| committer | David Brazdil <dbrazdil@google.com> | 2015-04-15 12:51:49 +0100 |
| commit | 66d126ea06ce3f507d86ca5f0d1f752170ac9be1 (patch) | |
| tree | 8e247db17ef085b55725b21c64d292414fd00b32 /compiler/optimizing/graph_visualizer.cc | |
| parent | 9bb3e8e10d7d9230a323511094a9e260062a1473 (diff) | |
ART: Implement HBooleanNot instruction
Optimizations simplifying operations on boolean values (boolean
simplifier, instruction simplifier) can benefit from having a special
HInstruction for negating booleans in order to perform more transforms
and produce faster machine code.
This patch implements HBooleanNot as 'x xor 1', assuming that booleans
are 1-bit integers and allowing for a single-instruction negation on
all supported platforms.
Change-Id: I33a2649c1821255b18a86ca68ed16416063c739f
Diffstat (limited to 'compiler/optimizing/graph_visualizer.cc')
0 files changed, 0 insertions, 0 deletions