This patch adds the constant attribute to cir.global, the appropriate
lowering to LLVM constant and updates the tests.
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Co-authored-by: Andy Kaylor <akaylor@nvidia.com>
If an array initializer list leaves eight or more elements that require
zero fill, we had been generating an individual zero element for every
one of them. This change instead follows the behavior of classic
codegen, which creates a constant structure with the specified elements
followed by a zero-initializer for the trailing zeros.
This PR upstreams `GotoOp`. It moves some tests from the `goto` test
file to the `label` test file, and adds verify logic to `FuncOp`. The
gotosSolver, required for lowering, will be implemented in a future PR.
This PR introduces the `LabelOp`, which is required for implementing
`GotoOp` lowering in the future.
Lowering to LLVM IR is **not** included in this patch, since it depends
on the upcoming `GotoSolver`.
The `GotoSolver` traverses the function body, and if it finds a
`LabelOp` without a matching `GotoOp`, it erases the label.
This means our implementation differs from the classic codegen approach,
where labels may be retained even if unused.
Example:
https://godbolt.org/z/37Mvr4MMr
This change introduces the #cir.global_view attribute and adds support
for using that attribute to handle initializing a global variable with
the address of another global variable.
This does not yet include support for the optional list of indices to
get an offset from the base address. Those will be added in a follow-up
patch.
This change adds the definition of VTableAddrPointOp and the related
AddressPointAttr to the CIR dialect, along with tests for the parsing
and verification of these elements.
Code to generate this operation will be added in a later change.
This patch adds the `cir.ffs` operation which corresponds to the
`__builtin_ffs` family of builtin functions.
This operation was not included in the previous PRs because the call to
`__builtin_ffs` would be transformed into a library call to `ffs`. At
the time of authoring this patch, this behavior has been changed and now
we can properly lower calls to `__builtin_ffs` to `cir.ffs`.
This patch adds the `#cir.poison` attribute which represents a poison
value. This patch also updates various operation folders to let them
propagate poison values from their inputs to their outputs.
This patch adds folders for the bit manipulation operations, namely:
`clrsb`, `clz`, `ctz`, `parity`, `popcount`, `bitreverse`, `byte_swap`,
and `rotate`.
This patch adds extra function attributes to the `cir.call` operation.
The extra attributes now may contain a single `cir.nothrow` attribute
that indicates whether the callee throws.
This PR adds support for loading bit-field members from structs using
the `get_bitfield` operation.
It enables retrieving the address of the bitfield-packed member but does
**not** yet support volatile bitfields this will be addressed in a
future PR.
This change adds support for handling the -mconstructor-aliases option
in CIR. Aliases are not yet correctly lowered to LLVM IR. That will be
implemented in a future change.
- Generalizes CIRFPTypeInterface files to CIRTypeInterfaces for future type interfaces additions.
- Renames CIRFPTypeInterface to FPTypeInterface.
- Fixes FPTypeInterface tablegen prefix.
This mirrors incubator changes from https://github.com/llvm/clangir/pull/1713
This change adds support for function linkage and visibility and related
attributes. Most of the test changes are generalizations to allow
'dso_local' to be accepted where we aren't specifically testing for it.
Some tests based on CIR inputs have been updated to add 'private' to
function declarations where required by newly supported interfaces.
The dso-local.c test has been updated to add specific tests for
dso_local being set correctly, and a new test, func-linkage.cpp tests
other linkage settings.
This change sets `comdat` correctly in CIR, but it is not yet applied to
functions when lowering to LLVM IR. That will be handled in a later
change.
This change adds support for the CIRGlobalValueInterface and attributes
for visibility and comdat to GlobalOp.
The comdat attribute isn't correctly calculated yet, but it was required
for the CIRGlobalValueInterface interface. There are also some cases
where dso_local isn't set correctly, but it is better than it was before
this change. Those issues will be addressed in a future patch.
This PR adds support for the `FlattenCFG` transformation on `switch`
statements. It also introduces the `SwitchFlatOp`, which is necessary
for subsequent lowering to LLVM.
This patch adds the cir-simplify pass for SelectOp and TernaryOp. It
also adds the SelectOp folder and adds the constant materializer for the
CIR dialect.
