[RISCV][MCA] Update sifive-p670 tests to consume input files instead (#189785)
Use the new input file system for `sifive-p670`'s llvm-mca tests. Some
of the vector crypto extension tests are left intact, due to the lack of
corresponding input files, and moved under the `rvv` sub-directory.
[libc] Support basic 'complex.h' functionality on GPUs (#189999)
Summary:
This PR adds the basic complex functions needed by some targets. This is
an attempt to provide the standard interface needed by
'https://github.com/llvm/llvm-project/pull/187831'
[DA] Overflow check in WeakCrossing Delta calculation (#185046)
When subtracting the constant part of two addrecs, we need to ensure the
calculation won't overflow. If it may overflow, we conservatively stop
the analysis and return false.
[mlir][NVVM] Add managed attribute for global variables (#189751)
Add support for the `nvvm.managed` attribute on `llvm.mlir.global` ops.
When present, the LLVM IR translation emits `!nvvm.annotations` metadata
with `!"managed"` for the global variable, which the NVPTX backend uses
to generate `.attribute(.managed)` in PTX output.
This enables CUDA managed memory support for frontends that lower
through MLIR.
[clang] Fix conflicting declaration error with using_if_exists (#167646)
This fixes an issue with using_if_exists where we would hit `conflicts
with target of using declaration already in scope` with a
using_if_exists attribute referring to a declaration which did not
exist. That is, if we have `using ::bar
__attribute__((using_if_exists))` but `bar` is not in the global
namespace, then nothing should actually be declared here.
This PR contains the following changes:
1. Ensure we only diagnose this error if the target decl and [Non]Tag
decl can be substitutes for each other.
2. Prevent LookupResult from considering UnresolvedUsingIfExistsDecls in
the event of ambiguous results.
3. Update tests. This includes the minimal repo for a regression test,
and changes to existing tests which also seem to exhibit this bug.
Fixes #85335
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[clang] fix OutputSemantic list in HLSL (#185550)
Normally sane front-ends with the common calling-conventions avoid
having multiple sret with a return value, so this is NFCI. However,
multiple can be valid. This rewrites an odd looking DenseMap of one
element that was needed for iteration into a more sensible vector.
Noted in https://github.com/llvm/llvm-project/pull/181740 review.
[llubi] Extract reusable methods of InstExecutor into ExecutorBase (#186976)
This PR extracts the non-visitor methods of class InstExecutor into a
separate class ExecutorAPI. This reorganization allows library functions
(and any future extensions) to reuse the functionality of InstExecutor
without introducing cyclic dependencies.
See also #185645 and #185817.
[Flang][OpenMP] Extend omp requires detection in Bridge.cpp (#188106)
Currently, we do not check the module for requires directives, which
means we'll miss these and not set them on the OpenMP module.
Otherwise, due to the first come first serve method we currently check
the symbols, there is certain formats that would mean the compiler would
miss that a user had specified requires somewhere in the module. This is
partially but not fully avoided by the Semantics layer pushing the
requires on to the top most PFT symbol, as it is entirely possible to
create a legal Fortran program where you could have two or more of these
(e.g. module and main program in one file, standalone funcitons
intermixed with modules or main program). Some examples of this are
shown in the added Fortran test. This PR opts to resolve it by gathering
all of the relevant symbols and processing them.
Also removed gathering from BlockDataUnit as I don't think these symbols
ever get the requires applied.
[mlir][sparse] add GPU num threads to sparsifier options (#189078)
This change adds a `gpu-num-threads` option to the sparsifier. This
allows users to specify the number of threads used for GPU codegen,
similar to the `num-threads` option in the `-sparse-gpu-codegen` pass.
[SelectionDAG] Assert on non-FP operand to `computeKnownFPClass` (#189752)
Assert correct usage of `computeKnownFPClass` or users (i.e.,
`isKnownNeverNaN`).
[DA] factor out repetitive code in GCD test (NFCI) (#189461)
The logic for recursively investigating the source and destination
AddRecs in GCD test is the same and can be factored out.
Fully disable `preserve_none` under ASan (#190001)
This crashes Clang 19, 21, and 22 on x86-64 that I've tested and I don't
have a ready-to-test build of any other versions but it seems much safer
to just disable for now.
[scudo] Ensure that reallocate copies everything
getUsableSize returns the actual capacity of the underlying block, which
may be larger than the size originally requested by the user. If the
user writes data into this extra space accessible via getUsableSize and
subsequently calls reallocate, the existing implementation only copies
the original requested number of bytes. This resulted in data loss for
any information stored beyond the requested size but within the usable
bounds.
[flang] Update Flang Extension doc to reflect previous change (#188088)
Update Flang Extension doc to remove note about a warning that was
removed in a previous PR (PR #178088). It is an oversight that this doc
change was not made in that previous PR. The oversight was only recently
discovered and has led to this PR.
Revert "[flang] Preserve UseErrorDetails in module files (#189423)" (#189997)
This reverts commit fce3a66f5e2f247890c57ac01a2c9847358c0f27. It broke a
Fortran application in our in-house testing.
[SelectionDAGBuilder] Only check VPCmp for NaNs in fp comparisons (#189749)
`getFCmpCodeWithoutNaN` should only be used for FP comparisons (which is
also the only context in which `isKnownNeverNaN` makes sense).
[CIR][MLIR][OpenMP] Enable the MarkDeclareTarget pass for ClangIR (#189420)
This patch enables the MarkDeclareTarget for CIR by adding the pass to
the lowerings and attaching the declare target interface to the
cir::FuncOp. The MarkDeclareTarget is also generalized to work on the
FunctionOpInterface instead of func::Op since it needs to be able to
handle cir::FuncOp as well.
Co-authored-by: Claude Opus 4.6 <noreply at anthropic.com>
[VPlan] Strip dead code in isUniformAcrossVFsAndUFs (NFC) (#189687)
Checking a VPInstruction for scalar-cast is equivalent to checking
opcode against Instruction::isCast via preservesUniformity.
[flang] fix a dangling else in allOtherUsesAreSafeForAssociate (#189748)
Fix a dangling if condition in allOtherUsesAreSafeForAssociate that
caused isBeforeInBlock to be called even when instructions were known to
not be in the same block, triggering an assertion. The condition was
changed to else if and added brackets.
---------
Co-authored-by: Yebin Chon <ychon at nvidia.com>
[VPlan] Avoid unnecessary BTC SymbolicValue creation (NFC) (#189929)
Don't unnecessarily create a backedge-taken-count SymbolicValue. This
allows us to simplify some code.
