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| author | David Brazdil <dbrazdil@google.com> | 2015-08-04 16:22:25 +0100 |
|---|---|---|
| committer | David Brazdil <dbrazdil@google.com> | 2015-08-04 16:39:38 +0100 |
| commit | cb1c0557033065f2436ee79e7fa6c19d87064801 (patch) | |
| tree | 741b623b2e370a133b5cef9feed2542151186db6 /compiler/optimizing/graph_visualizer.cc | |
| parent | e238414eee3ec933a4ceb1894666c9ef331ace0c (diff) | |
ART: Move exception clearing into own instruction
Runtime delivers exceptions only to catch blocks which begin with a
MOVE_EXCEPTION instruction (in DEX). In that case, the catch block is
expected to clear the thread-local exception storage after having
read the exception reference.
This patch changes Optimizing to represent MOVE_EXCEPTION with two
instructions - HLoadException and HClearException - instead of one.
If the exception reference is not used, HLoadException can be safely
removed, saving a memory load without breaking the runtime behaviour.
Change-Id: Idad8a714467bf9d9d5fccefbc43c0bd8ae13ddba
Diffstat (limited to 'compiler/optimizing/graph_visualizer.cc')
0 files changed, 0 insertions, 0 deletions