This patch is based on a previous PR https://reviews.llvm.org/D144657
that added alloca address space handling to MLIR's DataLayout and DLTI
interface. This patch aims to add identical features to import and
access the global and program memory space through MLIR's
DataLayout/DLTI system.
Data layout queries may be issued for types whose size exceeds the range
of 32-bit integer as well as for types that don't have a size known at
compile time, such as scalable vectors. Use best practices from LLVM IR
and adopt `llvm::TypeSize` for size-related queries and `uint64_t` for
alignment-related queries.
See #72678.
The revision adds the stack alignment to the
data layout dialect and it extends the LLVM dialect
import and export to support the new data layout
entry.
One possible use case for the flag is the LLVM dialect
inliner. The LLVM inliner queries the flag to
determine if it is safe to update the alignment of an
existing alloca. We may want to perform the same
optimization inside of MLIR.
Reviewed By: Dinistro
Differential Revision: https://reviews.llvm.org/D147332
The revision moves the data layout parsing into a separate file
and extends it to support pointer data layout specifications.
Additionally, it also produces more precise warnings and error
messages.
Reviewed By: Dinistro, definelicht
Differential Revision: https://reviews.llvm.org/D147170
