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[libc] Add stub for confstr (#218789)

POSIX defines confstr as returning strings for various macros (see:
https://pubs.opengroup.org/onlinepubs/9799919799/functions/confstr.html)
This PR adds an implementation as experimental that always returns that
there's no valid string.

Assisted-by: Automated tooling, human reviewed.

[MLIR][Math] Enable strict property assembly format (#217275)

Enable the strict properties assembly format mode for the Math dialect.
Spell the classification fast-math attribute in the declarative format
so it is not parsed from attr-dict in strict mode.

Assisted-by: Codex

[MLIR][Affine] Reject fully consumed bounded delinearize split (#217472)

Do not apply SplitDelinearizeSpanningLastLinearizeArg when the split
would consume an entire outer-bounded basis. Rewriting that case can
discard earlier linearization inputs and previously built an invalid
zero-result prefix operation.

Assisted-by: Codex

[MLIR][ODS] Print prop-dict fields with custom printers (#217589)

Generate a key-value prop-dict printer that dispatches each field to its
ODS printer while retaining attribute conversion for non-compositional
default parsers.

Keep operation-specific property printer hooks ahead of the generated
implementation and preserve legacy input compatibility.

See #155475

Assisted-by: Codex

[ORC] Remove lookupAndRecordAddrs (#218671)

All uses of lookupAndRecordAddrs have been replaced by lookupAndApply,
so remove the former (along with its unit tests).

Add conduct email contact for the CODE_OF_CONDUCT page (#218787)

This turns out to be the landing page users get linked to when
(temporarily or permanently) banned. And since there is no way to
privately message through GitHub, this is basically where they end up
and having an immediate way to reach the CoC Committee to discuss those
moderation actions is important.

---------

Co-authored-by: Cyndy Ishida <cyndyishida at gmail.com>

documentation/en: Bump copyright year

Rebase

Created using spr 1.3.7

add event cleanup

add blocking semantics to LaunchKernel and Memcpy

add StreamCreateWithFlags

[CIR] Rewrap the x86_64 classifier bridge comment

This paragraph lost its shape over a couple of merges and ended up with
a short orphaned line in the middle.  Rewrapping the whole block lets
classifyX86_64Function land mid-line so the lines fill evenly.  The
wording is untouched, only the line breaks moved.

Assisted-by: Cursor / claude-opus-5

Revert "[PromoteMemToReg] Insert store undef when removing lifetime markers (…"

This reverts commit efd053f8ef306e6fa21ab0cd1bd185ef48f09fc0.

[MLIR][ODS] Print prop-dict fields with custom printers

Generate a key-value prop-dict printer that dispatches each field to its ODS
printer while retaining attribute conversion for non-compositional default
parsers.

Keep operation-specific property printer hooks ahead of the generated
implementation and preserve legacy input compatibility.

Update the OpenACC cache checks for the generated custom property spelling.

Assisted-by: Codex

[flang][nfc] Split out the pre- and post-cfg FIR pipelines (#218778)

Split the FIR optimization pipeline in its pre- and post-cfg parts and
expose the builders so that alternative downstream pipelines can build
around them.

[lldb] Fix `shared_ptr<Section>` leak (#218794)

Introduced by #213356

```
SanitizerError
AddressSanitizer: 2760 byte(s) leaked in 15 allocation(s).
Details

=================================================================
==6162==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 1472 byte(s) in 8 object(s) allocated from:
...
    #8 0x7f4d08980c00 in ObjectFileELF::CreateSections(lldb_private::SectionList&) lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp:2168:28
    #9 0x7f4d085c5651 in lldb_private::Module::GetSectionList() lldb/source/Core/Module.cpp:1226:17
    #10 0x7f4d08af4f6f in lldb_private::plugin::dwarf::SymbolFileDWARF::SymbolFileDWARF(std::__u::shared_ptr<lldb_private::ObjectFile>, lldb_private::SectionList*) lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp:490:44
    #11 0x7f4d08af331e in lldb_private::plugin::dwarf::SymbolFileDWARF::CreateInstance(std::__u::shared_ptr<lldb_private::ObjectFile>) lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp:347:14
    #12 0x7f4d08cc36af in lldb_private::SymbolFile::FindPlugin(std::__u::shared_ptr<lldb_private::ObjectFile>) lldb/source/Symbol/SymbolFile.cpp:64:51

    [22 lines not shown]

Rebase

Created using spr 1.3.7

[MLIR][ODS] Parse prop-dict fields with custom parsers (#218798)

Teach generated operation parsers to accept a key-value spelling for
prop-dict and dispatch known fields through their ODS parsers. Keep the
DictionaryAttr spelling as a compatibility path and use attribute
conversion when a property has no usable FieldParser.

Reland #217590 after fixing the MSAN specific failure: the
`FieldParser<SmallVector<int32_t>>` specialization collided with a
generic instantiation in another translation unit. Under MSan, the
linker selected the generic parser instead of the specialization.

See #155475

Assisted-by: Codex

15.1/errata: All open issues fixed in stable

Discussed with: cperciva

Rename test file to run it later in the set

Do not add a second lifetime start when allocating VGPRs again

Propagate object liveness to every changed successor, not only back edges

Allocate and reserve registers for address space 13 objects

Treat a sub-dword VGPR-memory load as divergent too

Diagnose inline asm that clobbers a VGPR-memory object's registers

Diagnose an object that does not fit the function's register budget

Regenerate the demanded-bits expectations for the gfx1250 entry sequence

Inherit the M0 operand when expanding the sub-dword VGPR-memory pseudos

Regenerate the sub-dword expectations for the M0 setup change

Merge branch 'vplan-based-stride-mv-tests' into vplan-based-stride-mv-rt-guard