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author Vladimir Marko <vmarko@google.com> 2021-11-22 16:31:57 +0000
committer Vladimir Marko <vmarko@google.com> 2021-11-25 09:26:35 +0000
commitddf4fd3c37af160b5a1f7e83212b837f50e13e81 (patch)
tree61f9223f33f3191f6e6416d717a3a13405235413 /runtime/fault_handler.cc
parentc3e004d1c8c58c1311beb1bcdd8211f5d4d5a009 (diff)
Always access Thread state and flags as 32-bit location.
Rewrite access to Thread's state and flags to use 32-bit atomic operations. Avoid `volatile` accesses that prevent compiler optimizations. Change `ThreadState` and `ThreadFlag` to `enum class`es. Golem results for art-opt-cc (higher is better): linux-ia32 before after NativeDowncallStaticNormal 28.162 35.323 (+25.43%) NativeDowncallStaticNormal6 26.447 32.951 (+24.59%) NativeDowncallStaticNormalRefs6 NativeDowncallVirtualNormal 27.972 35.027 (+25.22%) NativeDowncallVirtualNormal6 26.096 32.131 (+23.13%) NativeDowncallVirtualNormalRefs6 25.922 31.873 (+22.95%) linux-x64 before after NativeDowncallStaticNormal 26.987 34.380 (+27.40%) NativeDowncallStaticNormal6 25.424 31.096 (+22.31%) NativeDowncallStaticNormalRefs6 25.086 30.602 (+21.99%) NativeDowncallVirtualNormal 26.812 33.234 (+23.95%) NativeDowncallVirtualNormal6 25.086 30.617 (+22.05%) NativeDowncallVirtualNormalRefs6 25.086 30.602 (+21.99%) linux-armv7 before after NativeDowncallStaticNormal 7.2394 7.9523 (+9.848%) NativeDowncallStaticNormal6 6.8527 7.4888 (+9.283%) NativeDowncallStaticNormalRefs6 6.3976 6.9444 (+8.547%) NativeDowncallVirtualNormal 7.2081 7.9130 (+9.779%) NativeDowncallVirtualNormal6 6.8527 7.4888 (+9.283%) NativeDowncallVirtualNormalRefs6 6.3168 6.8527 (+8.483%) linux-armv8 before after NativeDowncallStaticNormal 7.0389 7.5973 (+7.933%) NativeDowncallStaticNormal6 6.8527 7.3783 (+7.670%) NativeDowncallStaticNormalRefs6 6.2924 6.8226 (+8.427%) NativeDowncallVirtualNormal 6.8527 7.3783 (+7.670%) NativeDowncallVirtualNormal6 6.5604 7.0423 (+7.344%) NativeDowncallVirtualNormalRefs6 6.1408 6.5329 (+6.386%) Test: m test-art-host-gtest Test: testrunner.py --host --optimizing Test: run-gtests.sh Test: testrunner.py --target --optimizing --interpreter Bug: 172332525 Bug: 143299880 Change-Id: Ib55d457ad8f5d9e1159b681dfd279d1f9cfb2af7
Diffstat (limited to 'runtime/fault_handler.cc')
-rw-r--r--runtime/fault_handler.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/runtime/fault_handler.cc b/runtime/fault_handler.cc
index 66fb3c7b5c..f8bd213d53 100644
--- a/runtime/fault_handler.cc
+++ b/runtime/fault_handler.cc
@@ -309,7 +309,7 @@ bool FaultManager::IsInGeneratedCode(siginfo_t* siginfo, void* context, bool che
}
ThreadState state = thread->GetState();
- if (state != kRunnable) {
+ if (state != ThreadState::kRunnable) {
VLOG(signals) << "not runnable";
return false;
}