RFR: 8298632: [TESTBUG] Add IR checks in jtreg vectorization tests [v2]

[Pengfei Li]

On Fri, 16 Dec 2022 12:48:41 GMT, Daniel Skantz <duke at openjdk.org> wrote:

> If we wantUseAVX or other platform-specific flags in annotations, maybe also need [JDK-8297490](https://bugs.openjdk.org/browse/JDK-8297490)

@danielogh Thanks for letting me know this. As I have discussed with kvn, currently we have to keep `vm.flagless` in these tests. Users cannot select non-default UseSSE/UseAVX values without the `export TEST_VM_FLAGLESS=true` workaround. So, I don't think I need to add platform-specific flags in `@applyIf` for now.

-------------

PR: https://git.openjdk.org/jdk/pull/11687