[clang] Return std::optional from all Expr::tryEvaluate* API (#179230)
tryEvaluateString was returning an std::optional, but the other try* API
was not. Update tryEvaluateObjectSize and tryEvaluateStrLen to return an
std::optional<uint64_t>.
[Driver][Darwin] Pass stack usage file for LTO (#178005)
Add a .su extension to the main output's filename and pass this down to
the LLVM layer.
rdar://143089305
[MLIR] [Python] Added plumbing to run stubgen on the mlir._mlir package (#179211)
This allows generating stubs during Bazel builds, which was previously
only supported under CMake.
I decided not to use nanobind_stubgen from nanobind-bazel, because the
py_binary it generates is not easily usable in a genrule.
[CodeGen] Improve documentation for SUBREG_TO_REG (#180504)
The most important change is to remove the claim that the extra bits are
necessarily set to zero.
[Clang] Fix missing -Warray-bounds warning on member function calls. (#179647)
Fixes #179128.
This patch fixes a false negative where Clang failed to detect
out-of-bounds access when calling a member function on an invalid array
index. It adds handling for CXXMemberCallExpr in CheckArrayAccess.
Signed-off-by: prajwal jalwadi<prajwaljalwadi at gmail.com>
[lld] Add explicit std::move(...) to avoid a few vector copies (#180474)
In corner cases, it is profitable to move an llvm::SmallString instead
of copying it.
It is almost always profitable to move an std::vector
Changes suggested by performance-use-std-move from
https://github.com/llvm/llvm-project/pull/179467
[VPlan] Propagate FastMathFlags from phis to blends (#180226)
If a phi has fast math flags, we can propagate it to the widened select.
To do this, this patch makes VPPhi and VPBlendRecipe subclasses of
VPRecipeWithIRFlags, and propagates it through PlainCFGBuilder and
VPPredicator.
Alive2 proofs for some of the FMFs (it looks like it can't reason about
the full "fast" set yet)
nnan: https://alive2.llvm.org/ce/z/f0bRd4
nsz: https://alive2.llvm.org/ce/z/u9P96T
The actual motivation for this to eventually be able to move the special
casing for tail folding in
LoopVectorizationPlanner::addReductionResultComputation into the CFG in
#176143, which requires passing through FMFs.
[flang][NFC] Converted five tests from old lowering to new lowering (part 15) (#179854)
Tests converted from test/Lower: equivalence-with-host-assoc.f90,
explicit-interface-results-2.f90, explicit-interface-results.f90,
ext-proc-as-actual-argument-1.f90, ext-proc-as-actual-argument-2.f90
[clang] Add explicit std::move(...) to avoid a few copies (#180482)
Moving an std::vector is almost always profitable.
A clang::CXXScopeSpec contains an owned
clang::NestedNameSpecifierLocBuilder which currently does not benefit
from being moved, but may structurally in the future.
A clang::MultiLevelTemplateArgumentList contains an llvm::SmalVector
which may benefit from being moved dependiong on its size.
A clang::Environment contains an llvm::ImmutableMap which itself
contains an llvm::IntrusiveRefCntPtr that benefits from being moved.
Changes suggested by performance-use-std-move from #179467
---------
Co-authored-by: Timm Baeder <tbaeder at redhat.com>
[clang] Add explicit std::move(...) to avoid a few copies (#180477)
Moving a clang::MultilibSet is almost always profitable.
Changes suggested by performance-use-std-move from #179467
[clangd] Add explicit std::move(...) to avoid a few copies (#180475)
Moving an std::map is almost always profitable (DiagnosticToDiagRefMap).
Changes suggested by performance-use-std-move from #179467
[clang][bytecode] Implement constexpr step limit (#176150)
This only calls `noteStep()` on jump opcodes, so this works for loops.
It does not prevent "hangs" when a function is just _very_ long (could
be interesting how this interfaces with expand statements?).
Fixes https://github.com/llvm/llvm-project/issues/165951
[flang][NFC] Remove dependency on FIRBuilder from FIRAnalysis. (#180300)
The dependency actually appears to be unused.
Co-authored-by: Matt P. Dziubinski <matt-p.dziubinski at hpe.com>
