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8 Commits
Author SHA1 Message Date
Dana Jansens 4416f3525b Canonicalize generated functions for Core witnesses (#7729) 
Use a single `SemIR::Function` per `Core` interface method, whether it's
generated locally or imported. This prevents generating duplicate
functions, which lead to different types when the witness appears in a
`FacetValue` as part of a specific for a class.

We use a `CanonicalValueStore` of `GeneratedFunction` objects that allow
finding an existing FunctionId for a `Generated` special function before
(re-)generating it. Mangling for `Generated` functions is also moved to
use the values from the `GeneratedFunction`'s canonicalization key, so
that we have a consistent source of truth for the unique ID of a
`Generated` function across all files.

New tests are in
`toolchain/check/testdata/impl/custom_witness/destroy.carbon`.
 2026-09-15 16:02:13 +00:00
Nicholas Bishop cf66fb8aeb roll llvm to 7024b9e1b423b3c3c6ac76ab6a73cb2c9e4ef842 (#7781) 
Updated patch 0006 to include new files added in
https://github.com/llvm/llvm-project/pull/207543.

Dropped patch 0009 which was upstreamed in:
https://github.com/llvm/llvm-project/pull/190088

Minor updates to patch 0011 for changes upstream.

Minor updates in export.cpp to use `llvm::FoldingSetInsertToken` instead
of a void pointer.
 2026-09-14 21:54:09 +00:00
Richard SmithandChandler Carruth c588eadb57 Rename and rearrange entities in tests to avoid name reuse (#7656) 
Fix a bunch of cases where we use the same external name to mean
multiple different things in the same test. We've historically gotten
away with this, but under `--share-cpp-ast`, it becomes an error, at
least if the entity is either defined in, or used from, C++ code.

Assisted-by: Gemini via Antigravity (original change) and Claude Code
(suggested edits in review)

---------

Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
 2026-08-21 01:36:40 +00:00
Geoff Romer d21cc3197f Fix the textual IR name of WrapperBindingPattern (#7650) 
`at_binding_pattern` is a relic from an earlier revision of #6930.
 2026-08-18 22:31:27 +00:00
Richard Smith 8bae79f44a Update to a more recent LLVM. (#7488) 
Fix a few API issues. There's also a newly-added file in compiler-rt
that is not supposed to be built by default but is not being excluded
properly by a glob. Added a patch to exclude that and sent
https://github.com/llvm/llvm-project/pull/208861 upstream.
 2026-07-13 22:29:39 +00:00
Geoff Romer ae3c4266d4 Add separators between files in LLVM IR dumps (#7463) 
Each file dump now starts with a `; ---` comment and ends with a blank
line. This makes it easier to visually scan the dump for a file of
interest. The comment format is somewhat arbitrary; I chose `---` to
align with the `--- filename.carbon` separator in SemIR dumps, but
without the filename, because that appears on each of the next two lines
already.
 2026-07-07 16:31:24 +00:00
David Blaikie 88b3605eac Fix #7289: Add debug info module flags as-needed and verify if already present (#7336) 
This avoids duplicate module flags when compiling C++ interop with debug
info.

Assisted-by: Gemini via Antigravity
 2026-06-16 03:18:05 +00:00
Richard Smith fb05da761f Fix formation of invalid value_of_initializer instructions. (#7329) 
This is only valid when the operand is an initializing expression that
holds a copy of the value, but we were incorrectly also forming it when
the operand was an in-place initializing expression.

Fixes a crash in lowering when attempting to lower an invalid
`value_of_initializer`.
 2026-06-10 15:28:56 +00:00