This patch moves the CommonArgs utilities into a location visible by the
Frontend Drivers, so that the Frontend Drivers may share option parsing
code with the Compiler Driver. This is useful when the Frontend Drivers
would like to verify that their incoming options are well-formed and
also not reinvent the option parsing wheel.
We already see code in the Clang/Flang Drivers that is parsing and
verifying its incoming options. E.g. OPT_ffp_contract. This option is
parsed in the Compiler Driver, Clang Driver, and Flang Driver, all with
slightly different parsing code. It would be nice if the Frontend
Drivers were not required to duplicate this Compiler Driver code. That
way there is no/low maintenance burden on keeping all these parsing
functions in sync.
Along those lines, the Frontend Drivers will now have a useful mechanism
to verify their incoming options are well-formed. Currently, the
Frontend Drivers trust that the Compiler Driver is not passing back junk
in some cases. The Language Drivers may even accept junk with no error
at all. E.g.:
`clang -cc1 -mprefer-vector-width=junk test.c'
With this patch, we'll now be able to tighten up incomming options to
the Frontend drivers in a lightweight way.
---------
Co-authored-by: Cameron McInally <cmcinally@nvidia.com>
Co-authored-by: Shafik Yaghmour <shafik.yaghmour@intel.com>
Summary:
We support `nogpulib` to disable implicit libraries. In the future we
will want to change the default linking of these libraries based on the
user language. This patch just introduces a positive variant so now we
can do `-nogpulib -gpulib` to disable it.
Later patch will make the default a variable in the ROCmToolChain
depending on the target languages.
This is the first of a series of patches to add support for OpenMP
offloading to SPIR-V through liboffload with the first intended target
being Intel GPUs. This patch implements the basic driver and
`clang-linker-wrapper` work for JIT mode. There are still many missing
pieces, so this is not yet usable.
We introduce `spirv64-intel-unknown` as the only currently supported
triple. The user-facing argument to enable offloading will be `-fopenmp
-fopenmp-targets=spirv64-intel`
Add a new `SPIRVOpenMPToolChain` toolchain based on the existing general
SPIR-V toolchain which will call all the required SPIR-V tools (and
eventually the SPIR-V backend) as well as add the corresponding device
RTL as an argument to the linker.
We can't get through the front end consistently yet, so it's difficult
to add any LIT tests that execute any tools, but front end changes are
planned very shortly, and then we can add those tests.
---------
Signed-off-by: Sarnie, Nick <nick.sarnie@intel.com>
