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| author | Ben Cheng <bccheng@android.com> | 2011-03-16 17:19:06 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@android.com> | 2011-03-18 17:02:20 -0700 |
| commit | 46cd4fb73824ab57160994c149ce2d7a06923b83 (patch) | |
| tree | 0839bd9c762c10ca1f4656f8f340b0d6113f1a22 /vm/Globals.h | |
| parent | 4ee46dbdc0d6ab1337a483b870775e0929a011cc (diff) | |
| download | android_dalvik-46cd4fb73824ab57160994c149ce2d7a06923b83.tar.gz android_dalvik-46cd4fb73824ab57160994c149ce2d7a06923b83.tar.bz2 android_dalvik-46cd4fb73824ab57160994c149ce2d7a06923b83.zip | |
Extend a trace with a backward branch into a loop.
When seeing a trace that ends with a backward branch, exhaust all code
blocks reachable from that trace and try to identify if there exists a
non-nested loop. If the derived loop is found to be too complex or only
acyclic code is seen, revert to the original compilation mechanism to
translate a simple trace.
This CL uses the whole-method parser/dataflow analysis framework to
identify such loops. No optimization/codegen are performed yet.
Bug: 4086718
Change-Id: I19ed3ee53ea1cbda33940c533de8e9220e647156
Diffstat (limited to 'vm/Globals.h')
| -rw-r--r-- | vm/Globals.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/vm/Globals.h b/vm/Globals.h index ad28e147c..df10e3681 100644 --- a/vm/Globals.h +++ b/vm/Globals.h @@ -878,6 +878,9 @@ struct DvmJitGlobals { /* Flag to dump all compiled code */ bool printMe; + /* Per-process debug flag toggled when receiving a SIGUSR2 */ + bool receivedSIGUSR2; + /* Trace profiling mode */ TraceProfilingModes profileMode; |