[mlir][LLVM] Use a disjoint scope domain when inlining noalias
This matches recent changes to the LLVM inliner.
AI disclosure: Claude wrote the code, I wrote the commit message and
have done initial review.
[mlir][LLVM] Add disjointScopes to AliasScopeDomainAttr
This also updates the MLIR-side inliner to clone disjoint domains
while cloning alias scopes, matching changes to LLVM.
AI disclosure: Claude wrote the code, I wrote the commit message and
looked at the code.
[AMDGPU] Use a disjoint scope domain for merged LDS structs
When lowering LDS values, all the values are mutually disjoint, so we
can use the newly-added disjoint scopes feature to simplify the IR.
AI disclosure: Claude wrote this and I reviewed it and wrote the
commit message
[AMDGPU] Use a disjoint scope domain for noalias kernel arguments
All noalias arguments of a kernel are disjoint with each other, so we
can use a disjoint scope to save on metadata construction.
AI disclosure: Claude wrote this, I looked at it and wrote this
message.
[Inliner] Use a disjoint scope domain for noalias arguments
InlineFunction creates alias.scope/noalias metadata to represent the
set of `noalias` arguments to a function. We don't need the `!noalias`
now that we have the ability to use disjoint scopes, saving us IR size
and metadata bloat.
TODO move these to a previous commit.
Also changes InstCombine to not drop the experimental.noalias.scope.decl
for disjoint scopes even if they're not mentioned in a `!noalias`, but
do still delete them if they're not used.
[IR] Add alias scope domains with disjoint scopes
See RFC at
https://discourse.llvm.org/t/rfc-disjoint-scope-alias-scope-noalias-domains/91537
This commit adds support for declaring an alias scope domain disjoint.
Disjoint domains are ones where each scope is implicitly `!noalias`
with each other scope in the domain. This is represented by adding an
`i1` into the scope's domain as the second argument, with `i1 true`
representing disjoint scopes and `i1 false` representing the old
non-disjoint behavior. AutoUpgrade mechanisms have been added to add
in the missing `i1 false` to existing metadata.
This commit updates alias analysis to know about disjoint scopes and
updates the function cloner to also clone the alias domain if it's
disjoint (since, as a herd of LLMs discovered, you don't want the old
IR to be noalias with a clone of itself).
Commits to migrate passes to use disjoint scopes where that's an
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[X86][InstCombine] Fix profcheck failures (#227183)
When optimizing some AVX512 masked intrinsics, we would create a select
with a condition derived from the mask. We cannot infer the distribution
of this synthesized condition, so mark it unknown to make profcheck
green.
[MC,ELF] Set sh_entsize for SHT_INIT_ARRAY/FINI_ARRAY/PREINIT_ARRAY (#226875)
Match GNU Assembler: set sh_entsize to 4/8, regardless of sh_size. This
is mostly cosmetic: sh_entsize is not a useful member for non-merge
sections.
When clang-produced and GCC-produced objects are linked together, the
mismatch makes lld's output sh_entsize 0.
audio/shntool: Deprecate
No release for the last 15 years, there are still resolved bugs so
we can assume by this point its abandoned upstream. Redirect users to
ffmpeg, sox or audio format's native application.
audio/alure: Mark BROKEN and DEPRECATED
Upstream site is gone and development has moved on to alure2 which is
in development
Reference:
https://github.com/kcat/alure/issues/44
