[NFC][AArch64] Refactor Arm llvm-mca tests (#183294)
This patch refactors the llvm-mca tests for AArch64 targets
which make use of the shared "Neoverse/Inputs" directory. For the
sake of making scaling easier, the "Inputs" directory is now on the
toplevel at llvm-mca/AArch64 and all tests referencing this directory
are rewritten to use the new path.
[AArch64] Add vector expansion support for ISD::FCBRT when using ArmPL (#183750)
This patch teaches the backend how to lower the FCBRT DAG node to the
vector math library function when using ArmPL. This is similar to what
we already do for llvm.pow/FPOW, however the only way to expose this is
via a DAG combine that converts
FPOW(<2 x double> %x, <2 x double> <double 1.0/3.0, double 1.0/3.0>)
into
FCBRT(<2 x double> %x)
when the appropriate fast math flags are present on the node. I've
updated the DAG combine to handle vector types and only perform the
transformation if there exists a vector library variant of cbrt.
[DAG] isKnownNeverZero - add ISD::UADDSAT/UMAX/UMIN DemandedElts handling and tests (#183992)
Fixes #183038
Adds `isKnownNeverZero` support for `UADDSAT`, `UMAX`, and `UMIN`. This
allows the compiler to prove a vector result is _non-zero_ by analyzing
only the demanded lanes of its operands.
[mlir][llvm] Fix crash in LLVM inliner when callee has no recognized terminator (#183949)
When the callee of an llvm.call has a body block ending with an
unregistered op (rather than a recognized LLVM terminator like
llvm.return), the LLVM inliner's handleTerminator method was called with
that unregistered op and crashed via a cast<LLVM::ReturnOp>() assertion
or use-after-erase due to unresolved call result uses.
The root cause is that the generic MLIR verifier conservatively treats
unregistered ops as potential terminators (using mightHaveTrait), so
malformed IR of this shape passes verification. The inliner, however,
assumes that the callee's terminator is a recognized LLVM op.
Fix by adding a guard in LLVMInlinerInterface::isLegalToInline() that
refuses to inline a callee containing any block whose last operation
does not have the IsTerminator trait. This prevents the crash and leaves
the call site intact without any IR mutation.
Fixes #108363
Fixes #118766
[lldb] Don't link TestingSupport as a component (#184310)
This doesn't work with dylib builds, because TestingSupport is not part
of the dylib. Instead, we should link it via LINK_LIBS, like other tests
already do.
gcc/vax: (gcc12) adjust the constraints on the output operands of the
'*extzv_aligned' instruction patterns, removing the 'earlyclobber'
modifier, to be consistent with the constraints on the output operands
of the related 'extv_aligned' instruction patterns.
Initial (non working) syncthing 2.x package
Fails to start on NetBSD with
/usr/pkg/bin/syncthing: text relocations
/usr/pkg/bin/syncthing: Cannot write-enable text segment: Permission denied
Adding NOT_PAX_MPROTECT_SAFE to test just gets a segfault
Could be related to the switch to sqlite?
[lldb] Use AppendMessageWithFormatv in ComandObjectWatchpoint (#184128)
All of the AppendMessage... methods of CommandReturnObject automatically
add a newline, apart from AppendMessageWithFormat. This gets very
confusing when reviewing changes to commands.
While there are use cases for building a message as you go, controlling
when the newline is emitted, a lot of calls to AppendMessageWithFormat
include a newline at the end of the format string.
Such as in the watchpoint commands. So I've converted them to equivalent
AppendMessageWithFormatv calls so that:
* They have the less surprising behaviour re. newlines.
* They are in many cases more readable than the printf style notation.
Support unnamed functions in MIR parser (#183018)
In this PR, unnamed machine functions in an MIR file are associated with
anonymous functions in the embedded LLVM IR according to the order in
which they are specified. If there are more unnamed machine functions
then there are LLVM IR functions, the parsing will fail by reporting the
original error message of `function ‘’ isn’t defined in the provided
LLVM IR`.
Closes #36511
