JIT test: remove SimdLoadBetweenBCs from ElidedBoundsChecks#129044
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Exception behavior of Vector128.Create from contiguous array indices changed in dotnet#128965 (no longer recognized as a single SIMD load with ArgumentOutOfRangeException). Fixes dotnet#129037. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
This PR updates the CoreCLR JIT regression test ElidedBoundsChecks by removing a SIMD-based bounds-check barrier scenario that no longer matches current exception behavior after recent JIT changes (contiguous Vector128.Create(...) args no longer recognized as a single SIMD-load pattern with ArgumentOutOfRangeException).
Changes:
- Removed the
SimdLoadBetweenBCshelper method that relied on the contiguous-argsVector128.Createlowering behavior. - Removed the corresponding
TestEntryPointassertions that depended on observingArgumentOutOfRangeException(CoreCLR-specific, HW-accelerated-only gate).
EgorBo
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Jun 5, 2026
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Exception behavior of Vector128.Create from contiguous array indices changed in #128965 (no longer recognized as a single SIMD load with ArgumentOutOfRangeException).
Fixes #129037.