[VPlan] Populate and use VPIRMetadata from VPInstructions (NFC) (#167253)
Update VPlan to populate VPIRMetadata during VPInstruction construction
and use it when creating widened recipes, instead of constructing
VPIRMetadata from the underlying IR instruction each time.
This centralizes VPIRMetadata in VPInstructions and ensures metadata is
consistently available throughout VPlan transformations.
PR: https://github.com/llvm/llvm-project/pull/167253
[libc++] Replace a few .compile.fail.cpp tests by proper clang-verify tests (#167346)
We want to eliminate all .compile.fail.cpp tests since they are brittle:
these tests pass regardless of the specific compilation error, which
means that e.g. a mising include will render the test null.
This is not an exhaustive pass, just a few tests I stumbled upon.
[libc++] Enable compiler-rt when performing a bootstrapping build (#167065)
Otherwise, we end up using whatever system-provided compiler runtime is
available, which doesn't work on macOS since compiler-rt is located
inside the toolchain path, which can't be found by default.
However, disable the tests for compiler-rt since those are linking
against the system C++ standard library while using the just-built
libc++ headers, which is non-sensical and leads to undefined references
on macOS.
[VPlan] Replace VPIRMetadata::addMetadata with setMetadata. (NFC)
Replace addMetadata with setMetadata, which sets metadata, updating
existing entries or adding a new entry otherwise.
This isn't strictly needed at the moment, but will be needed for
follow-up patches.
[libc][Github] Perform baremetal libc builds (#167583)
Currently there are no 32 bit presubmit builds for libc. This PR
performs 32 bit build only (no test) to check any changes that land in
libc break 32 bit builds.
Co-authored-by: Aiden Grossman <aidengrossman at google.com>
[SystemZ] TableGen-erate node descriptions (#168113)
This allows SDNodes to be validated against their expected type profiles
and reduces the number of changes required to add a new node.
There is only one node that is missing a description -- `GET_CCMASK`,
others were successfully imported.
Part of #119709.
Pull Request: https://github.com/llvm/llvm-project/pull/168113
[AMDGPU] Add baseline test to show spilling of wmma scale. NFC
This is to show the spilling of WMMA scale values which are limited
to low 256 VGPRs. We have free registers, just RA allocates low 256
first.
[AMDGPU] Prioritize allocation of low 256 VGPR classes
If we have 1024 VGPRs available we need to give priority to the
allocation of these registers where operands can only use low 256.
That is noteably scale operands of V_WMMA_SCALE instructions.
Otherwise large tuples will be allocated first and take all low
registers, so we would have to spill to get a room for these
scale registers.
Allocation priority itself does not eliminate spilling completely
in large kernels, although helps to some degree. Increasing spill
weight of a restricted class on top of it helps.
[AArch64] Treat COPY between cross-register banks as expensive
The motivation is to allow passes such as MachineLICM to hoist trivial
FMOV instructions out of loops, where previously it didn't do so even
when the RHS is a constant.
On most architectures, these expensive move instructions have a latency
of 2-6 cycles, and certainly not cheap as a 0-1 cycle move.
[AArch64] Optimize extending loads of small vectors (#163064)
Reduces the total amount of loads and the amount of moves between SIMD
registers and general-purpose registers.
AMDGPU: Don't duplicate implicit operands in 3-address conversion
We previously got a duplicate implicit $exec operand. It didn't really
hurt anything (other than being a slight drag on compile-time
performance). Still, let's keep things clean.
commit-id:203b6f66
[ASan][HIP] Add ASan declarations and macros. (#167522)
This patch adds the following device ASan hooks and guarded macros in
__clang_hip_libdevice_declares.h
- Function Declarations
- __asan_poison_memory_region
- __asan_unpoison_memory_region
- __asan_address_is_poisoned
- __asan_region_is_poisoned
- Macros
- ASAN_POISON_MEMORY_REGION
- ASAN_UNPOISON_MEMORY_REGION
[lldb-dap] Migrating 'evaluate' to structured types. (#167720)
Adding structured types for the evaluate request handler.
This should be mostly a non-functional change. I did catch some spelling
mistakes in our tests ('variable' vs 'variables').
[LV] Add test with existing noalias metadata and runtime checks.
Add test where we have loads with existing noalias metadata and noalias
metadata gets added by loop versioning.
