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don't use write barriers for frozen objects (#76135)
author
Egor Bogatov
<egorbo@gmail.com>
Mon, 26 Sep 2022 12:57:03 +0000
(14:57 +0200)
committer
GitHub
<noreply@github.com>
Mon, 26 Sep 2022 12:57:03 +0000
(14:57 +0200)
src/coreclr/jit/gcinfo.cpp
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diff --git
a/src/coreclr/jit/gcinfo.cpp
b/src/coreclr/jit/gcinfo.cpp
index
1d0229f
..
ae73034
100644
(file)
--- a/
src/coreclr/jit/gcinfo.cpp
+++ b/
src/coreclr/jit/gcinfo.cpp
@@
-252,6
+252,12
@@
GCInfo::WriteBarrierForm GCInfo::gcIsWriteBarrierCandidate(GenTreeStoreInd* stor
return WBF_NoBarrier;
}
+ if (store->Data()->IsIconHandle(GTF_ICON_OBJ_HDL))
+ {
+ // Ignore frozen objects
+ return WBF_NoBarrier;
+ }
+
WriteBarrierForm wbf = gcWriteBarrierFormFromTargetAddress(store->Addr());
if (wbf == WBF_BarrierUnknown)