[PATCH] testsuite: aarch64: Add tests for vmull_high intrinsics

[Jonathan Wright via Gcc-patches]

Hi,

As subject, this patch adds tests for vmull_high_* Neon intrinsics. Since
these intrinsics are only supported for AArch64, these tests are
restricted to only run on AArch64 targets.

Ok for master?

Thanks,
Jonathan

---

gcc/testsuite/ChangeLog:

2021-01-29  Jonathan Wright  <jonathan.wri...@arm.com>

        * gcc.target/aarch64/advsimd-intrinsics/vmull_high.c:
        New test.
        * gcc.target/aarch64/advsimd-intrinsics/vmull_high_lane.c:
        New test.
        * gcc.target/aarch64/advsimd-intrinsics/vmull_high_laneq.c:
        New test.
        * gcc.target/aarch64/advsimd-intrinsics/vmull_high_n.c:
        New test.