Merge "ART: Fix ARM dmb placement in monitor-exit"
diff --git a/compiler/dex/quick/arm/call_arm.cc b/compiler/dex/quick/arm/call_arm.cc
index d3477c9..435242a 100644
--- a/compiler/dex/quick/arm/call_arm.cc
+++ b/compiler/dex/quick/arm/call_arm.cc
@@ -268,6 +268,7 @@
MarkPossibleNullPointerException(opt_flags);
LoadConstantNoClobber(rs_r3, 0);
LIR* slow_unlock_branch = OpCmpBranch(kCondNe, rs_r1, rs_r2, NULL);
+ GenMemBarrier(kStoreLoad);
Store32Disp(rs_r0, mirror::Object::MonitorOffset().Int32Value(), rs_r3);
LIR* unlock_success_branch = OpUnconditionalBranch(NULL);
@@ -285,7 +286,6 @@
LIR* success_target = NewLIR0(kPseudoTargetLabel);
unlock_success_branch->target = success_target;
- GenMemBarrier(kStoreLoad);
} else {
// Explicit null-check as slow-path is entered using an IT.
GenNullCheck(rs_r0, opt_flags);
@@ -295,7 +295,8 @@
LoadConstantNoClobber(rs_r3, 0);
// Is lock unheld on lock or held by us (==thread_id) on unlock?
OpRegReg(kOpCmp, rs_r1, rs_r2);
- LIR* it = OpIT(kCondEq, "EE");
+ LIR* it = OpIT(kCondEq, "TEE");
+ GenMemBarrier(kStoreLoad);
Store32Disp/*eq*/(rs_r0, mirror::Object::MonitorOffset().Int32Value(), rs_r3);
// Go expensive route - UnlockObjectFromCode(obj);
LoadWordDisp/*ne*/(rs_rARM_SELF, QUICK_ENTRYPOINT_OFFSET(4, pUnlockObject).Int32Value(),
@@ -304,7 +305,6 @@
LIR* call_inst = OpReg(kOpBlx/*ne*/, rs_rARM_LR);
OpEndIT(it);
MarkSafepointPC(call_inst);
- GenMemBarrier(kStoreLoad);
}
}