The AAExecutionDomain instance checks if a BB is executed by the main
thread only. Currently, this only checks the `__kmpc_kernel_init` call
for generic regions to indicate the path taken by the main thread. In
the new runtime, we want to be able to detect basic blocks even in SPMD
mode. For this we enable it to check thread-ID intrinsics being compared
to zero as well.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D109849
This patch adds the `nosync` attribute to the `__kmpc_alloc_shared` and
`__kmpc_free_shared` runtime library calls. This allows code analysis to
know that these functins dont contain any barriers. This will help
optimizations reason about the CFG of blocks containing these calls.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D109995
... instead of constructing a new one each time. This allows us
to take advantage of {D105305}.
I didn't see a substantial difference when linking chromium_framework,
but this paves the way for reusing similar logic for splitting compact
unwind entries into sections. There are a lot more of those, so the
performance impact is significant.
Differential Revision: https://reviews.llvm.org/D109895
A MachO userspace corefile may contain LC_THREAD commands which specify
thread exception state.
For arm64* only (for now), report a human-readable version of this state
as the thread stop reason, instead of 'SIGSTOP'.
As a follow-up, similar functionality can be implemented for x86 cores
by translating the trapno/err exception registers.
rdar://82898146
Differential Revision: https://reviews.llvm.org/D109795
Catch additional missing error cases for typed and untyped
NULL actual arguments to non-intrinsic procedures in cases
of explicit and implicit interfaces.
Differential Revision: https://reviews.llvm.org/D110003
Nobody has complained about this, and the documentation for
LLVMContext::yield() states that LLVM is allowed to never call it.
Reviewed By: asbirlea
Differential Revision: https://reviews.llvm.org/D110008
This fixes a bug in clang where, when clang sees a switch with a
fallthrough to a default like this:
static void funcA(void) {}
static void funcB(void) {}
int main(int argc, char **argv) {
switch (argc) {
case 0:
funcA();
break;
case 10:
default:
funcB();
break;
}
}
It does not add a proper debug location for that switch case, such as
case 10: above.
Patch by Shubham Rastogi!
Differential Revision: https://reviews.llvm.org/D109940
This patch supports OpenMP 5.0 metadirective features.
It is implemented keeping the OpenMP 5.1 features like dynamic user condition in mind.
A new function, getBestWhenMatchForContext, is defined in llvm/Frontend/OpenMP/OMPContext.h
Currently this function return the index of the when clause with the highest score from the ones applicable in the Context.
But this function is declared with an array which can be used in OpenMP 5.1 implementation to select all the valid when clauses which can be resolved in runtime. Currently this array is set to null by default and its implementation is left for future.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D91944
This patch supports OpenMP 5.0 metadirective features.
It is implemented keeping the OpenMP 5.1 features like dynamic user condition in mind.
A new function, getBestWhenMatchForContext, is defined in llvm/Frontend/OpenMP/OMPContext.h
Currently this function return the index of the when clause with the highest score from the ones applicable in the Context.
But this function is declared with an array which can be used in OpenMP 5.1 implementation to select all the valid when clauses which can be resolved in runtime. Currently this array is set to null by default and its implementation is left for future.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D91944
Use irbuilder as default and remove redundant Clang codegen for masked construct and master construct.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D100874
Note that this revision adds a very tiny bit of constant folding in the
sparse compiler lattice construction. Although I am generally trying to
avoid such canonicalizations (and rely on other passes to fix this instead),
the benefits of avoiding a very expensive disjunction lattice construction
justify having this special code (at least for now).
Reviewed By: bixia
Differential Revision: https://reviews.llvm.org/D109939
A couple tweaks to
1. allow more thinlto importing by excluding probe intrinsics from IR size in module summary
2. Allow general default attributes (nofree nosync nounwind) for pseudo probe intrinsic. Without those attributes, pseudo probes will be basically treated as unknown calls which will in turn block their containing functions from annotated with those attributes.
Reviewed By: wenlei
Differential Revision: https://reviews.llvm.org/D109976
It is the case that, for all positive a and b such that b divides a
(e mod (a * b)) mod b = e mod b. For example, ((d0 mod 35) mod 5) can
be simplified to (d0 mod 5), but ((d0 mod 35) mod 4) cannot be simplified
further (x = 36 is a counterexample).
This change enables more complex simplifications. For example,
((d0 * 72 + d1) mod 144) mod 9 can now simplify to (d0 * 72 + d1) mod 9
and thus to d1 mod 9. Expressions with chained modulus operators are
reasonably common in tensor applications, and this change _should_
improve code generation for such expressions.
Reviewed By: nicolasvasilache
Differential Revision: https://reviews.llvm.org/D109930
Windows on armv7 is as alignment tolerant as Linux.
The alignment considerations in the Windows on ARM ABI are documented
at https://docs.microsoft.com/en-us/cpp/build/overview-of-arm-abi-conventions?view=msvc-160#alignment.
The document doesn't explicitly say in which state the OS configures
the SCTLR.A register (and it's not accessible from user space to
inspect), but in practice, unaligned loads/stores do work and seem
to be as fast as aligned loads and stores. (Unaligned strd also does
seem to work, contrary to Linux, but significantly slower, as they're
handled by the kernel - exactly as the document describes.)
Differential Revision: https://reviews.llvm.org/D109960
A function can't be a specification function if it has a dummy procedure
argument, even if it's optional and unused. So don't check the reference
for actual procedure arguments, but rather the characteristics of the
function.
Differential Revision: https://reviews.llvm.org/D109935
From subclause 6.3.3.5: a program unit END statement cannot be
continued in fixed form, and other statements cannot have initial
lines that look like program unit END statements. I think this
is to avoid violating assumptions that are important to legacy
compilers' statement classification routines.
Differential Revision: https://reviews.llvm.org/D109933
Dexter currently accepts two possible arguments to determine the binary
used for testing; either --builder <builder> (and optionally
compiler/linker flags) to build the binary, or --binary <binary> to use
the provided binary directly. If both are passed, then --binary
overrides --builder; if neither are passed, then an error is raised.
This patch instead puts these arguments into a required mutually
exclusive argument group, so that an error is automatically raised by
argparse if both or neither are given.
As an additional change, the --cflags and --ldflags will now raise a
warning if they are passed without the --builder flag, as they are
meaningless if Dexter is using a pre-built binary.
Reviewed By: Orlando
Differential Revision: https://reviews.llvm.org/D109833
Catch invalid attempts to extract the unknowable extent of the last
dimension of an assumed-size array dummy argument, and clean up
problems with assumed-rank arguments in similar circumstances
exposed by testing the fix.
Differential Revision: https://reviews.llvm.org/D109918
A procedure actual argument to a PURE procedure should be required
to have an explicit interface. Implicit-interface actual arguments
to non-PURE procedures remain a warning.
Differential Revision: https://reviews.llvm.org/D109926
Even with all parallel loops reading the output value is still allowed so we
don't have to handle reduction loops differently.
Differential Revision: https://reviews.llvm.org/D109851
Sometimes people intentionally re-define a dylib personlity symbol as a local defined symbol as a workaround to a ld -r bug.
As a result, we could see "too many personalities" to encode. This patch tries to handle this case by ignoring the local symbols entirely.
Differential Revision: https://reviews.llvm.org/D107533
INT, NINT, FLOOR, and CEILING were failing to report overflow as an
error while folding operations with constant operands.
Differential Revision: https://reviews.llvm.org/D109922
The third-party ittnotify sources updated from https://github.com/intel/ittapi.
Changes applied:
- llvm license aded to all files; initial BSD license saved in LICENSE.txt;
- clang-formatted;
- renamed *.c to *.cpp, similar to what we did with all our sources;
- added #include "kmp_config.h" with definition of INTEL_ITTNOTIFY_PREFIX macro
into ittnotify_static.cpp.
Differential Revision: https://reviews.llvm.org/D109333
The intrinsic inquiry functions SIZE and UBOUND -- but not LBOUND --
require a DIM= argument if their first argument is an assumed-size
array. The intrinsic SHAPE must not be used with an assumed-size
array.
Differential Revision: https://reviews.llvm.org/D109912
We can use `OR` instead of `BLEND` if either the element we are not picking is zero (or masked away);
or the element we are picking overwhelms (e.g. it's all-ones) whatever the element we are not picking:
https://alive2.llvm.org/ce/z/RKejao
Reviewed By: RKSimon
Differential Revision: https://reviews.llvm.org/D109726
Silence a bogus error message about an out-of-range DIM= argument
when the argument is assumed-rank. (More generally, don't pretend
to be able to discern a shape of known rank for an assumed-rank
object.)
Differential Revision: https://reviews.llvm.org/D109915
Add the addTileLoopIvsToIndexOpResults method to shift the IndexOp results after tiling.
Reviewed By: nicolasvasilache
Differential Revision: https://reviews.llvm.org/D109761
Joseph Huber