| 4d4175a132b944214ed7559beb9b6b91d2eb36e1 |
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10-Mar-2018 |
Hans Boehm <hboehm@hboehm.mtv.corp.google.com> |
Add reachabilityFence intrinsics
Add intrinsics that generate no code or do nothing for all architectures
and for the interpreter. The only impact is to keep the argument live at
all suspend points preceding the call. We ensure that the code is not
moved across other memory accesses by declaring it to have write side-effects.
Add a minimal test.
Modify 036-finalizer to use a reachabilityFence, hopefully making it
more robust to dead refererence elimination.
Bug: 72698200
Test: Build and boot AOSP.
art/test.py --host -r -t 072-reachability-fence
Look at generated code.
Change-Id: I0f298bf5cc375d8ebc19bb791cc05a8490d55430
Merged-In: I0f298bf5cc375d8ebc19bb791cc05a8490d55430
(cherry picked from AOSP commit c7b28de9f8bf407d91cff22de782d022492b45f7)
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| 4d17987da58d9411adbed1a18203d76d6119612d |
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19-Jan-2018 |
Vladimir Marko <vmarko@google.com> |
ART: Add entrypoint and intrinsic for Math.pow().
MathBenchmarks.java#timePow results on taimen's little cores
fixed at frequency 1401600 with forced JIT compilation:
- before:
- X32: 356.33 (@FastNative), 315.39 (@CriticalNative)
- X64: 357.31 (@FastNative), 315.37 (@CriticalNative)
- after (LICM defeats the benchmark):
- X32: 2.88
- X64: 2.87
- after but with kAllSideEffects to prevent LICM:
- X32: 275.42
- X64: 275.67
Test: Rely on TreeHugger.
Bug: 70727450
Change-Id: Iaa31f70acabbd57c163cfeafe02eed67c1348861
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| 43f0cdbe3281cd5c9a33d5472b1538e5617f6691 |
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10-Oct-2017 |
Orion Hodson <oth@google.com> |
ART: Intrinsify polymorphic signature methods
Adds VarHandle accessor method to list of intrinsics.
Adds code to interpreter to ensure intrinsics with polymorphic
signatures are initialized.
Rename most uses of InvokePolymorphic to InvokeMethodHandle (and
similar changes) to be clear that the particular code path applies to
MethodHandle instances rather than VarHandle.
Change-Id: Ib74865124a1e986badc0a7c4bb3d782af07225d4
Bug: 65872996
Test: art/test.py --host
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| 26ef34c01ae5db2d3c964844b3717b8974a612c9 |
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01-Nov-2017 |
Orion Hodson <oth@google.com> |
ART: Move intrinsics definitions to runtime
Bug: 37538194
Test: art/test.py --host
Change-Id: Ic7adf5f8b14be0e1880ae898a4e199b4416a4d24
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