1. [ORC] Reintroduce the ORC C API test. (details)
  2. [gn build] Port f2018d6c16d1 (details)
  3. [GreedyRA] Add support for invoke statepoint with tied-defs. (details)
  4. [MLIR][SCF] Combine adjacent scf.if with same condition (details)
  5. [libcxx][ranges] Add `random_access_{iterator,range}`. (details)
  6. [InstCombine] Precommit tests for D101807 (NFC) (details)
  7. [InstCombine] Fold more select of selects using isImpliedCondition (details)
  8. [libcxx][ranges] Add ranges::size CPO. (details)
  9. [libcxx][ranges] Add ranges::ssize CPO. (details)
  10. Fix typo, arvm7 -> armv7 (details)
Commit f2018d6c16d118779d35f3705c74a31c1855ca56 by Lang Hames
[ORC] Reintroduce the ORC C API test.

This test was removed in 51495fd285 due to broken bots. Its reintroduction is
expected to trigger failures on some builders. The test has been modified to
print error messages in full, which should aid in tracking these down.
The file was addedllvm/unittests/ExecutionEngine/Orc/OrcCAPITest.cpp
The file was modifiedllvm/unittests/ExecutionEngine/Orc/CMakeLists.txt
Commit 88ec05b654758fecfe7147064dce84a09e2e20a8 by llvmgnsyncbot
[gn build] Port f2018d6c16d1
The file was modifiedllvm/utils/gn/secondary/llvm/unittests/ExecutionEngine/Orc/
Commit 9f631d14c638cc473101cd127697d037a33206a1 by serguei.katkov
[GreedyRA] Add support for invoke statepoint with tied-defs.

statepoint instruction uses tied-def registers to represent live gc value which
is use and def at the same time on a call.
At the same time invoke statepoint instruction is a last split point which can throw and
jump to landing pad.
As a result we have instructon which is last split point with tied-defs registers and
we need to teach Greedy RA to work with it.

The option -use-registers-for-gc-values-in-landing-pad controls whether statepoint lowering
will generate tied-defs for invoke statepoint and is off by default now.

To resolve all issues the following changes has been done.
1) Last Split point for invoke statepoint should be statepoint itself

If statepoint has a def it is a relocated gc pointer and it should be available in landing pad.
So we cannot split interval after statepoint at end of basic block.

2) Do not split interval on tied-def

If end of interval for overlap utility is a use which has tied-def we
should not split interval on this instruction due to in this case use
and def may have different registers and it breaks tied-def property.

3) Take into account Last Split Point for enterIntvAtEnd

If the use after Last Split Point is a def so it should be tied-def and
we can take the def of the tied-use as ParentVNI and thus
tied-use and tied-def will be live in resulting interval.

4) Handle the case when def is after LIP in InlineSpiller

If def of LI is after last insertion point of basic block we cannot hoist in this BB.

The example of such instruction is invoke statepoint where def represents the
relocated live gc pointer. Invoke is a last insertion point and its def is located after it.
In this case there is no place to insert spill and we bail out.

5) Fix removeBackCopies to account empty copies

RegAssignMap cannot hold empty interval, so do not set stop
to kill value if it produces empty interval.

This can happen if we remove back-copy and right before that we have another

For example, for parent %0 we can get
%1 = COPY %0
%2 = COPY %0
while we removing %2 we cannot set kill for %1 due to its empty.

6) Do not hoist copy to BB if its def is after LSP

If the parent def is a LastSplitPoint or later we cannot hoist copy to this basic block
because inserted copy (or re-materialization) will be located before the def.

All parts have been reviewed separately as follows:

Reviewers: reames, rnk, void, MatzeB, wmi, qcolombet
Reviewed By: reames, qcolombet
Subscribers: llvm-commits
Differential Revision:
The file was addedllvm/test/CodeGen/X86/statepoint-invoke-ra-remove-back-copies.mir
The file was modifiedllvm/lib/CodeGen/InlineSpiller.cpp
The file was modifiedllvm/lib/CodeGen/SplitKit.h
The file was addedllvm/test/CodeGen/X86/statepoint-invoke-ra-enter-at-end.mir
The file was addedllvm/test/CodeGen/X86/statepoint-invoke-ra-inline-spiller.mir
The file was modifiedllvm/test/CodeGen/X86/statepoint-invoke-ra.mir
The file was modifiedllvm/lib/CodeGen/SplitKit.cpp
The file was addedllvm/test/CodeGen/X86/statepoint-invoke-ra-hoist-copies.mir
Commit f4a2dbfe29031f02c02d6045159f22785dd611cf by gh
[MLIR][SCF] Combine adjacent scf.if with same condition

Differential Revision:
The file was modifiedmlir/include/mlir/Dialect/SCF/
The file was modifiedmlir/lib/Dialect/SCF/SCF.cpp
The file was modifiedmlir/test/Dialect/SCF/canonicalize.mlir
Commit 6ffc41b014f304a76f9a7eab39c122e0a9d7fcb8 by zoecarver
[libcxx][ranges] Add `random_access_{iterator,range}`.

Differential Revision:
The file was modifiedlibcxx/test/std/containers/associative/multimap/iterator_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/sequences/vector/iterator_concept_conformance.compile.pass.cpp
The file was addedlibcxx/test/std/ranges/range.refinements/random_access_range.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/sequences/deque/range_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/iterators/iterator.requirements/iterator.concepts/iterator.concept.bidir/subsumption.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/sequences/vector.bool/iterator_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/input.output/filesystems/class.path/range_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/ranges/range.refinements/subsumption.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/associative/multimap/range_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/associative/multiset/iterator_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/associative/multiset/range_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/associative/map/range_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/sequences/list/range_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/include/__iterator/concepts.h
The file was modifiedlibcxx/test/std/strings/string.view/range_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/strings/basic.string/range_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/include/__ranges/concepts.h
The file was addedlibcxx/test/std/iterators/iterator.requirements/iterator.concepts/iterator.concept.random.access/random_access_iterator.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/sequences/array/range_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/include/iterator
The file was modifiedlibcxx/test/std/containers/associative/set/iterator_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/sequences/vector.bool/range_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/re/re.results/range_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/views/span.iterators/iterator_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/sequences/array/iterator_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/views/range_concept_conformance.compile.pass.cpp
The file was addedlibcxx/test/libcxx/iterators/iterator.concepts/iterator.concept.random.access/subsumption.compile.pass.cpp
The file was modifiedlibcxx/test/std/strings/string.view/string.view.iterators/iterator_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/associative/map/iterator_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/strings/basic.string/string.iterators/iterator_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/iterators/predef.iterators/reverse.iterators/iterator_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/sequences/deque/iterator_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/sequences/list/iterator_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/sequences/vector/range_concept_conformance.compile.pass.cpp
The file was modifiedlibcxx/test/std/containers/associative/set/range_concept_conformance.compile.pass.cpp
Commit a71d666d189ed3b176b20c361604c7ec30d25621 by aqjune
[InstCombine] Precommit tests for D101807 (NFC)
The file was modifiedllvm/test/Transforms/InstCombine/select-safe-transforms.ll
Commit 1fef5c88a69e0ede57e3867af72ac769dd11add1 by aqjune
[InstCombine] Fold more select of selects using isImpliedCondition

This is a simple folding that does these:

select x_inv, true, (select y, x, false)
select x_inv, true, y

select (select y, x, false), true, x_inv
select y, true, x_inv

Reviewed By: spatel

Differential Revision:
The file was modifiedllvm/test/Transforms/InstCombine/select-safe-transforms.ll
The file was modifiedllvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
Commit 600686d75f552dcecd9ef83aa8d3163c620f4429 by zoecarver
[libcxx][ranges] Add ranges::size CPO.

The begining of [range.prim].

Differential Revision:
The file was modifiedlibcxx/include/type_traits
The file was addedlibcxx/include/__ranges/size.h
The file was addedlibcxx/test/std/ranges/range.access/range.prim/size.pass.cpp
The file was modifiedlibcxx/include/CMakeLists.txt
The file was modifiedlibcxx/include/ranges
Commit 6f1b10df916f2d538dd56da2d9976169708d2ac3 by zoecarver
[libcxx][ranges] Add ranges::ssize CPO.

Based on D101079.

Differential Revision:
The file was modifiedlibcxx/include/__ranges/size.h
The file was addedlibcxx/test/std/ranges/range.access/range.prim/ssize.pass.cpp
The file was modifiedlibcxx/test/std/ranges/range.access/range.prim/size.pass.cpp
The file was modifiedlibcxx/include/ranges
Commit 3a62d4fde88544125ce9ceff990db108ee91148a by brad
Fix typo, arvm7 -> armv7
The file was modifiedlldb/docs/man/lldb.rst
The file was modifiedlldb/tools/driver/Driver.cpp