Apparently, eliding barriers on uncommon traps builds ctw test:

TEST: applications/ctw/modules/jdk_internal_vm_compiler.java
...
There were 4 errors:[
java.lang.Error: modules_jdk_internal_vm_compiler_0: failed during compilation of class #1149 : org/graalvm/compiler/hotspot/nodes/Plugin_GraalHotSpotVMConfigNode_loadIntConfigValue
at sun.hotspot.tools.ctw.CtwRunner.startCtwforAllClasses(CtwRunner.java:217)
at sun.hotspot.tools.ctw.CtwRunner.run(CtwRunner.java:119)
at sun.hotspot.tools.ctw.CtwRunner.main(CtwRunner.java:65)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:830)

java.lang.Error: modules_jdk_internal_vm_compiler_1150: failed during compilation of class #1660 : org/graalvm/compiler/lir/LIRInstructionClass
at sun.hotspot.tools.ctw.CtwRunner.startCtwforAllClasses(CtwRunner.java:217)
at sun.hotspot.tools.ctw.CtwRunner.run(CtwRunner.java:119)
at sun.hotspot.tools.ctw.CtwRunner.main(CtwRunner.java:65)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:830)

java.lang.Error: modules_jdk_internal_vm_compiler_1661: failed during compilation of class #2417 : org/graalvm/compiler/nodes/memory/PluginFactory_MemoryAnchorNode
at sun.hotspot.tools.ctw.CtwRunner.startCtwforAllClasses(CtwRunner.java:217)
at sun.hotspot.tools.ctw.CtwRunner.run(CtwRunner.java:119)
at sun.hotspot.tools.ctw.CtwRunner.main(CtwRunner.java:65)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:830)

java.lang.Error: modules_jdk_internal_vm_compiler_2418: failed during compilation of class #3226 : org/graalvm/compiler/replacements/nodes/PluginFactory_BinaryMathIntrinsicNode
at sun.hotspot.tools.ctw.CtwRunner.startCtwforAllClasses(CtwRunner.java:217)
at sun.hotspot.tools.ctw.CtwRunner.run(CtwRunner.java:119)
at sun.hotspot.tools.ctw.CtwRunner.main(CtwRunner.java:65)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:830)