# Failure analysis
The option "-XX:LoopUnrollLimit=0" results in no unrolling and consequently no vectorization opportunities in the test code.

# Original description
ADDITIONAL SYSTEM INFORMATION :
OS: Ubuntu18.04

CPU: Intel(R) Xeon(R) Gold 6240 CPU @ 2.60GHz with AVX3

$ java -version
openjdk version "20-internal" 2023-03-21
OpenJDK Runtime Environment (fastdebug build 20-internal-adhoc.root.jdk)
OpenJDK 64-Bit Server VM (fastdebug build 20-internal-adhoc.root.jdk, mixed mode, sharing)

A DESCRIPTION OF THE PROBLEM :
$ CONF=linux-x86_64-server-fastdebug make test TEST=compiler/c2/cr7200264/TestSSE2IntVect.java TEST_VM_OPTS="-XX:LoopUnrollLimit=0"

----------System.err:(16/1012)----------
java.lang.RuntimeException: Unexpected AndV number: expected 0 >= 3
at jdk.test.lib.Asserts.fail(Asserts.java:594)
at jdk.test.lib.Asserts.assertGreaterThanOrEqual(Asserts.java:288)
at jdk.test.lib.Asserts.assertGTE(Asserts.java:259)
at compiler.c2.cr7200264.TestDriver.verifyVectorizationNumber(TestDriver.java:65)
at compiler.c2.cr7200264.TestDriver.run(TestDriver.java:43)
at compiler.c2.cr7200264.TestSSE2IntVect.main(TestSSE2IntVect.java:48)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:125)
at java.base/java.lang.Thread.run(Thread.java:1589)

JavaTest Message: Test threw exception: java.lang.RuntimeException: Unexpected AndV number: expected 0 >= 3
JavaTest Message: shutting down test

Besides, compiler/c2/cr7200264/TestSSE4IntVect.java also failed with option "-XX:LoopUnrollLimit=0"


FREQUENCY : always