AMDGPU: Optimize set_rounding if input is known to fit in 2 bits (#88588)
We don't need to figure out the weird extended rounding modes or
handle offsets to keep the lookup table in 64-bits.
https://reviews.llvm.org/D153258
Depends #88587
[clang] CTAD: fix the aggregate deduction guide for alias templates.
For alias templates, the way we construct their aggregate deduction guides is
not following the standard way. We should do the same thing as we do for
implicit deduction guides.
Refactor: Extract the core deduction-guide construction implementation from DeclareImplicitDeductionGuidesForTypeAlias
We move the core implementation to a dedicate function, so that it can
be reused in other places.
[GlobalISel] Optimize ULEB128 usage (#90565)
- Remove some cases where ULEB128 isn't needed
- Add a fastDecodeULEB128 tailored for GlobalISel which does unchecked
decoding optimized for the common case, which is 1 byte values. We
rarely have >1 byte Inst IDs, OpIdx, etc. and those are the most common
ULEB users by far.
This specific LEB128 decode function generates almost 2x less
instructions than the generic one.
[clang] pointer to member with qualified-id enclosed in parentheses in unevaluated context should be invalid (#89713)
clang don't check whether the operand of the & operator is enclosed in
parantheses when pointer to member is formed in unevaluated context, for
example:
```cpp
struct foo { int val; };
int main() { decltype(&(foo::val)) ptr; }
```
`decltype(&(foo::val))` should be invalid, but clang accepts it. This PR
fixes this issue.
Fixes #40906.
---------
Co-authored-by: cor3ntin <corentinjabot at gmail.com>
[mlir] make transform.foreach_match forward arguments (#89920)
It may be useful to have access to additional handles or parameters when
performing matches and actions in `foreach_match`, for example, to
parameterize the matcher by rank or restrict it in a non-trivial way.
Enable `foreach_match` to forward additional handles from operands to
matcher symbols and from action symbols to results.
SystemZ: Don't promote atomic store in IR (#90899)
This is the mirror to the recent atomic load change. The same
bitcast-back-to-integer case is a small code quality regression for the
same reason. This would disappear with a bitcastable legal 128-bit type.
AMDGPU: Implement llvm.set.rounding (#88587)
Use a shift of a magic constant and some offseting to convert from
flt_rounds values.
I don't know why the enum defines Dynamic = 7. The standard suggests -1
is the cannot determine value. If we could start the extended values at
4 we wouldn't need the extra compare sub and select.
https://reviews.llvm.org/D153257
[lldb] Fix Scalar::GetData for non-multiple-of-8-bits values (#90846)
It was aligning the byte size down. Now it aligns up. This manifested
itself as SBTypeStaticField::GetConstantValue returning a zero-sized
value for `bool` fields (because clang represents bool as a 1-bit
value).
I've changed the code for float Scalars as well, although I'm not aware
of floating point values that are not multiples of 8 bits.
[MLIR][OpenMP] Extend omp.private materialization support: `dealloc` (#90841)
Extends current support for delayed privatization during translation to
LLVM IR. This adds support for materlizaing the `dealloc` region in
`omp.private` ops when this region contains clean-up/deallocation logic
that needs to be executed at the end of the parallel region.
This changes the `OMPIRBuilder` slightly to execute the finalization
callback **after** the privatization callback. This allows us to collect
information about privatized variables on the MLIR and LLVM sides so
that we can properly emit deallocation logic.
[flang][OpenMP] Fix construct privatization in default clause (#72510)
Current implementation of default clause privatization incorrectly fails
to privatize in presence of non-OpenMP constructs (i.e. nested
constructs with regions whose symbols need to be privatized in the scope
of the parent OpenMP construct). This patch fixes the same by
considering non-OpenMP constructs separately by collecting symbols of a
nested region if it is a non-OpenMP construct with a region, and
privatizing it in the scope of the parent OpenMP construct.
Fixes https://github.com/llvm/llvm-project/issues/71914 and
https://github.com/llvm/llvm-project/issues/71915
[AggressiveInstCombine] Inline strcmp/strncmp (#89371)
Inline calls to strcmp(s1, s2) and strncmp(s1, s2, N), where N and
exactly one of s1 and s2 are constant.
For example:
```c
int res = strcmp(s, "ab");
```
is converted to
```c
int res = (int)s[0] - (int)'a';
if (res != 0)
goto END;
res = (int)s[1] - (int)'b';
if (res != 0)
[6 lines not shown]
Fix sanitize problem. (#90800)
Currently isMapType could return OpenMPMapModifierKind.
The change is to return OpenMPMapTypeKind only, if it is not MapType
Kind OMPC_MAP_unknown is returned.
