Instead of constructing DebugVariables and looking up the order
in the comparison function, compute the order upfront and then sort
a vector of (order, instr).
This improves compile-time by -0.4% geomean on CTMark ReleaseLTO-g.
Differential Revision: https://reviews.llvm.org/D117575
According to v-spec v1.0, `zve-32x` is the new minimum extension to include
to have vector instructions.
Reviewed By: kito-cheng
Differential Revision: https://reviews.llvm.org/D112613
The creation of in-memory VFS nodes happens in a single function that deduces what kind of node to create from the arguments. This leads to complicated if-then-else logic that's difficult to cleanly extend.
This patch abstracts away in-memory node creation via a type-erased factory function that's passed instead.
Reviewed By: dexonsmith
Differential Revision: https://reviews.llvm.org/D117648
This patch virtualizes the `getStatus` function on `InMemoryNode` in LLVM VFS. Currently, this is implemented via top-level function `getNodeStatus` that tries to cast `InMemoryNode *` into each subtype. Virtual functions seem to be the simpler solution here.
Reviewed By: dexonsmith
Differential Revision: https://reviews.llvm.org/D117649
When computing the new type of a collapse_shape operation, we need to at least
take into account whether the type has an identity layout, in which case we can
easily support dynamic strides. Otherwise, the canonicalizer creates invalid
IR.
Longer term, both the verifier and the canoncializer need to be extended to
support the general case.
Differential Revision: https://reviews.llvm.org/D117772
This is part of the implementation of the dataflow analysis framework.
See "[RFC] A dataflow analysis framework for Clang AST" on cfe-dev.
Reviewed-by: xazax.hun
Differential Revision: https://reviews.llvm.org/D117754
Added warning for potential cases of
unaligned access when option
-mno-unaligned-access has been specified
Differential Revision: https://reviews.llvm.org/D116221
When adding new attributes, existing attributes are dropped. While
this appears to be a longstanding issue, this was highlighted by D105169
which dropped a lot of attributes due to adding the new noundef
attribute.
Ahmed Bougacha (@ab) tracked down the issue and provided the fix in
CGCall.cpp. I bundled it up and updated the tests.
The Armv8-R.64 architecture defines numbered MPU region registers with
indices 1-15, not 0-15. So there's no such register as PRBAR0_EL2 or
PRLAR0_EL1 (for example). The encodings that they would occupy are
used for the unnumbered PRBAR_ELn and PRLAR_ELn registers.
Reviewed By: labrinea
Differential Revision: https://reviews.llvm.org/D117755
GlobalISelEmitter was skipping these patterns when its predicates were
checked. This patch should allow us to select d16_hi stores in
GlobalISel.
Differential Revision: https://reviews.llvm.org/D117762
This patch just move the files from the Transforms directory to
the Dialect directory.
Reviewed By: jeanPerier
Differential Revision: https://reviews.llvm.org/D117661
Remove unnecessary dependent dialect and make the definition of the
pass more homogenous with the two others.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: jeanPerier
Differential Revision: https://reviews.llvm.org/D117688
This brings floating-point RVV vector/scalar support more in line with
the integer vector patterns, which can already match '.vx' instructions
with masked operations.
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D117697
This idea has come up in several reviews -- D115978 and D105902 -- so I
can't take any credit for the idea. Instead of using a constant pool to
lower -0.0, we can emit a sequence of two instructions:
fmv.[hwd].x freg, zero
fsgnjn.[hsd] freg, freg, freg
This is only done when the floating-point type is legal.
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D117687
Earlier `computeSingleVarRepr` was returning a pair of upper bound and
lower bound indices of the inequality contraints that can be expressed
as a floordiv of an affine function. The equality expression can also be
expressed as a floordiv but contains only one index and hence the `LocalRepr`
class is introduced to facilitate this.
Reviewed By: Groverkss
Differential Revision: https://reviews.llvm.org/D117430
Although the memory tag commands use a memory tag manager to handle
addresses, that only removes the top byte.
That top byte is 4 bits of memory tag and 4 free bits, which is more
than it should strictly remove but that's how it is for now.
There are other non-address bit uses like pointer authentication.
To ensure the memory tag manager only has to deal with memory tags,
use the ABI plugin to remove the rest.
The tag access test has been updated to sign all the relevant pointers
and require that we're running on a system with pointer authentication
in addition to memory tagging.
The pointers will look like:
<4 bit user tag><4 bit memory tag><signature><bit virtual address>
Note that there is currently no API for reading memory tags. It will
also have to consider this when it arrives.
Reviewed By: omjavaid
Differential Revision: https://reviews.llvm.org/D117672
This better describes the intent of the method. Which for AArch64
is removing the top byte which includes the memory tags.
It does not include pointer signatures, for those we need to use
the ABI plugin. The rename makes this a little more clear.
It's a bit awkward that the memory tag manager is removing the whole
top byte not just the memory tags but it's an improvement for now.
Reviewed By: omjavaid
Differential Revision: https://reviews.llvm.org/D117671
Similar to the migration of or-folding to FoldOr, there are a few cases
where the fold in IRBuilder::CreateAnd triggered directly. Those have
been updated.
Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D117431
... rather than using `__has_builtin` directly. This both (1) allows a compiler that doesn't speak `__has_builtin` to workaround with preprocessor magic, and (2) avoids diagnostics about things that look like function like macros after `#if` but are not.
Under ASTContext, clang only copies the features from the options with
Target->initFeatureMap, and no implications is done there. This makes
clang_cc1 fail to imply into `zve32x` for the vector extension, and test
cases will have to add ` -target-feature +experimental-zve32x` in order
to work.
This patch fixes it.
Reviewed By: kito-cheng
Differential Revision: https://reviews.llvm.org/D113336
This commit is the first step towards unifying core bufferization and One-Shot Bufferize.
This commit does not move over the implementations of BufferizableOpInterface yet. This will be done in separate commits. This change does also not move the unit tests yet. The tests will be moved together with op interface implementations and split into separate files.
Differential Revision: https://reviews.llvm.org/D117641
This is a recommit of the patch without changes. The reason for
the revert has been addressed in D117679.
-----
The user scanning loop above looks through pointer casts, so we
also need to strip pointer casts in the capture check. Previously
the source was incorrectly considered not captured if a bitcast
was passed to the call.
This is a recommit of the patch without changes. The reason for
the revert has been addressed in D117679.
-----
Call slot optimization is currently supposed to be prevented if
the call can capture the source pointer. Due to an implementation
bug, this check currently doesn't trigger if a bitcast of the source
pointer is passed instead. I'm somewhat afraid of the fallout of
fixing this bug (due to heavy reliance on call slot optimization
in rust), so I'd like to strengthen the capture reasoning a bit first.
In particular, I believe that the capture is fine as long as a)
the call itself cannot depend on the pointer identity, because
neither dest has been captured before/at nor src before the
call and b) there is no potential use of the captured pointer
before the lifetime of the source alloca ends, either due to
lifetime.end or a return from a function. At that point the
potentially captured pointer becomes dangling.
Differential Revision: https://reviews.llvm.org/D115615
Call slot optimization currently merges the metadata between the
call and the load. However, we also need to merge in the metadata
of the store.
Part of the reason why we might have gotten away with this
previously is that usually the load and the store are the same
instruction (a memcpy), this can only happen if call slot
optimization occurs on an actual load/store pair.
This addresses the issue reported in
https://reviews.llvm.org/D115615#3251386.
Differential Revision: https://reviews.llvm.org/D117679
The memory returned by the Allocate() function is also otherwise
accessible -- and is indeed accessed by the DestroyAll() method of
SpecificBumpPtrAlloactor. This is a violation of the noalias return
contract.
This should address the issue reported in
https://reviews.llvm.org/D116728#3252464.
Differential Revision: https://reviews.llvm.org/D117664
Fixes https://github.com/llvm/llvm-project/issues/44601.
This patch handles a bug when parsing a below example code :
```
template <class> class S;
template <class T> bool operator<(S<T> const &x, S<T> const &y) {
return x.i < y.i;
}
template <class T> class S {
int i = 42;
friend bool operator< <>(S const &, S const &);
};
int main() { return S<int>{} < S<int>{}; }
```
which parse `< <>` as `<< >`, not `< <>` in terms of tokens as discussed in discord.
1. Add a condition in `tryMergeLessLess()` considering `operator` keyword and `>`
2. Force to leave a whitespace between `tok::less` and a template opener
3. Add unit test
Reviewed By: MyDeveloperDay, curdeius
Differential Revision: https://reviews.llvm.org/D117398
`zve` is the new standard vector extension to specify varying degrees of
vector support for embedding processors. The `zve` extension is related
to the `zvl` extension and other updates that are added in v1.0.
According to https://github.com/riscv-non-isa/riscv-c-api-doc/pull/21,
Clang defines macro `__riscv_v_max_elen`, `__riscv_v_max_elen_fp` for
`zve` and it can be used by applications that uses the vector extension.
Authored by: Zakk Chen <zakk.chen@sifive.com> @khchen
Co-Authored by: Eop Chen <eop.chen@sifive.com> @eopXD
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D112408
Calls to JITDylib's getDFSLinkOrder and getReverseDFSLinkOrder methods (both
static an non-static versions) are now valid to make on defunct JITDylibs, but
will return an error if any JITDylib in the link order is defunct.
This means that platforms can safely lookup link orders by name in response to
jit-dlopen calls from the ORC runtime, even if the call names a defunct
JITDylib -- the call will just fail with an error.
If we have no timestamp (0), don't print the corresponding warning. The
binary holder already successfully ignores these cases, but the warning
for swift interface files was lacking it.
rdar://86036385
Differential revision: https://reviews.llvm.org/D117333
Once we linked in math files, potentially even if we link in only other
"system libraries", we want to optimize the code again. This is not only
reasonable but also helps to hide various problems with the missing
attribute annotations in the math libraries.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D116906
Nikita Popov