RFR: 8303105: LoopRangeStrideTest fails IR verification on x86

[Tobias Hartmann]

On Thu, 9 Mar 2023 10:08:51 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

> SLP fails to recognize valid address expression during SWPointer creation for memory operands with 32 bit jvm, this prevents gathering adjacent memory operations. 
> Debug trace with -XX:+TraceSuperWord -XX:+TraceNewVectors -XX:CompileCommand=VectorizeDebug,<method>,3  shows following errors .
> 
> SWPointer::memory_alignment: SWPointer p invalid, return bottom_align
> SWPointer::memory_alignment: SWPointer p invalid, return bottom_align
> SWPointer::memory_alignment: SWPointer p invalid, return bottom_align
> SWPointer::memory_alignment: SWPointer p invalid, return bottom_align
> SWPointer::memory_alignment: SWPointer p invalid, return bottom_align
> 
> Problem also exist in JDK17 LTS. As an interim solution to prevent this showing up as a GHA test failure, we can enable the test only for x86_64 and aarch64 targets. Difference in address expression b/w X86 32 and 64 bit jvm will be root caused in follow issue JDK-8303885.

Looks good and trivial.

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Marked as reviewed by thartmann (Reviewer).

PR: https://git.openjdk.org/jdk/pull/12938