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Author	SHA1	Message	Date
Alex MacLean	e004566547	[NVPTX][AA] Traverse use-def chain to find non-generic addrspace (#106477 ) Address space information may be encoded anywhere along the use-def chain. Take advantage of this by traversing the chain until we find a non-generic addrspace.	2024-08-29 21:26:58 -07:00
David Goldblatt	d020fa2b29	[AA] Skip the layer of indirection in returning conservative results. Historically, AA implementations chained to a following implementation to answer recursive queries. This is no longer the case, but the legacy lives on in a confusing phrasing of the return-a-conservative-value paths. Let's just return "don't know" directly, where appropriate; the current two-step way is confusing. Differential Revision: https://reviews.llvm.org/D149100	2023-07-28 12:13:35 -07:00
Andrew Savonichev	ca50be8c89	[NVPTX] Implement NVPTX AliasAnalysis NVPTXAliasAnalysis extends the default AA to take pointer address spaces into account. The analysis assumes that pointers in different address spaces do not alias, unless one of them is generic (flat) address space. The patch also implements pointsToConstantMemory (via getModRefInfoMask) to expose semantic of the constant address space to the optimizer as discussed in D112466. Differential Revision: https://reviews.llvm.org/D124787	2023-02-01 16:16:43 +03:00

Author

SHA1

Message

Date

Alex MacLean

e004566547

[NVPTX][AA] Traverse use-def chain to find non-generic addrspace (#106477 )

Address space information may be encoded anywhere along the use-def
chain. Take advantage of this by traversing the chain until we find a
non-generic addrspace.

2024-08-29 21:26:58 -07:00

David Goldblatt

d020fa2b29

[AA] Skip the layer of indirection in returning conservative results.

Historically, AA implementations chained to a following implementation
to answer recursive queries. This is no longer the case, but the legacy
lives on in a confusing phrasing of the return-a-conservative-value
paths. Let's just return "don't know" directly, where appropriate; the
current two-step way is confusing.

Differential Revision: https://reviews.llvm.org/D149100

2023-07-28 12:13:35 -07:00

Andrew Savonichev

ca50be8c89

[NVPTX] Implement NVPTX AliasAnalysis

NVPTXAliasAnalysis extends the default AA to take pointer address
spaces into account. The analysis assumes that pointers in different
address spaces do not alias, unless one of them is generic (flat)
address space.

The patch also implements pointsToConstantMemory (via
getModRefInfoMask) to expose semantic of the constant address space to
the optimizer as discussed in D112466.

Differential Revision: https://reviews.llvm.org/D124787

2023-02-01 16:16:43 +03:00

3 Commits