This is initial version of TBAA information generation for Flang
generated IR. The desired behavior is that TBAA type descriptors
are generated for FIR types during FIR to LLVM types conversion,
and then TBAA access tags are attached to memory accessing operations
when they are converted to LLVM IR dialect.
In the initial version the type conversion is not producing
TBAA type descriptors, and all memory accesses are just partitioned
into two sets of box and non-box accesses, which can never alias.
The TBAA generation is enabled by default at >O0 optimization levels.
TBAA generation may also be enabled via `apply-tbaa` option of
`fir-to-llvm-ir` conversion pass. `-mllvm -disable-tbaa` engineering
option allows disabling TBAA generation to override Flang's default
(e.g. when -O1 is used).
SPEC CPU2006/437.leslie3d speeds up by more than 2x on Icelake.
Reviewed By: jeanPerier, clementval
Differential Revision: https://reviews.llvm.org/D141820
This patch add the conversion pattern for fir.extract_value
and fir.insert_value. fir.extract_value is lowered to llvm.extractvalue
anf fir.insert_value is lowered to llvm.insertvalue.
This patch also adds the type conversion for the BoxType and RecordType
needed to have some comprehensive tests.
This patch is part of the upstreaming effort from fir-dev branch.
This patch was landed and reverted once.
TypeBuilderFunc getModel<Fortran::ISO::CFI_index_t>() was clashing
with getModel<long long> on windows since they both are 64 bits
signed interger. On linux CFI_index_t is long. Change CFI_index_t
to getModel<long>.
Reviewed By: awarzynski
Differential Revision: https://reviews.llvm.org/D112961
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
This patch add the conversion pattern for fir.extract_value
and fir.insert_value. fir.extract_value is lowered to llvm.extractvalue
anf fir.insert_value is lowered to llvm.insertvalue.
This patch also adds the type conversion for the BoxType and RecordType
needed to have some comprehensive tests.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: awarzynski
Differential Revision: https://reviews.llvm.org/D112961
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
