[msan] Implement support for Arm NEON vst{2,3,4} instructions #99360
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vitalybuka
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This adds an abridged copy of neon_vst.ll (from llvm@ff08215), but with origin tracking enabled. The test will be updated when MSan's Arm NEON support is improved (e.g., llvm#99360).
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This adds support for vst{2,3,4}, which are not correctly handled by
handleUnknownIntrinsic/handleVector{Load,Store}Intrinsic.
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"element size has an impact on pointer alignment. Alignment to the element size generally gives better performance, and it might be a requirement of your target operating system. For example, when loading 32-bit elements, align the address of the first element to at least 32-bits." -- https://developer.arm.com/documentation/102159/0400/Load-and-store---data-structures
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…9555) This adds an abridged copy of neon_vst.ll (from llvm@ff08215), but with origin tracking enabled. The test will be updated when MSan's Arm NEON support is improved (e.g., llvm#99360).
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…9360) This adds support for vst{2,3,4}, which are not correctly handled by handleUnknownIntrinsic/handleVector{Load,Store}Intrinsic. This patch also updates the tests introduced in llvm#98247 and llvm#99555 --------- Co-authored-by: Vitaly Buka <[email protected]>
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Summary: This adds an abridged copy of neon_vst.ll (from ff08215), but with origin tracking enabled. The test will be updated when MSan's Arm NEON support is improved (e.g., #99360). Test Plan: Reviewers: Subscribers: Tasks: Tags: Differential Revision: https://phabricator.intern.facebook.com/D60251368
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Summary:
This adds support for vst{2,3,4}, which are not correctly handled by
handleUnknownIntrinsic/handleVector{Load,Store}Intrinsic.
This patch also updates the tests introduced in
#98247 and
#99555
---------
Co-authored-by: Vitaly Buka <[email protected]>
Test Plan:
Reviewers:
Subscribers:
Tasks:
Tags:
Differential Revision: https://phabricator.intern.facebook.com/D60251436
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This adds support for vst{2,3,4}, which are not correctly handled by handleUnknownIntrinsic/handleVector{Load,Store}Intrinsic.
This patch also updates the tests introduced in #98247 and #99555