This is slightly inefficient than the previous code, but that is really
negligible as this function is usually called at most only a few times.
llvm-svn: 295282
Enable evaluation of captures within constexpr lambdas by using a strategy similar to that used in CodeGen:
- when starting evaluation of a lambda's call operator, create a map from VarDecl's to a closure's FieldDecls
- every time a VarDecl (or '*this) that represents a capture is encountered while evaluating the expression via the expression evaluator (specifically the LValueEvaluator) in ExprConstant.cpp - it is replaced by the corresponding FieldDecl LValue (an Lvalue-to-Rvalue conversion on this LValue representation then determines the right rvalue when needed).
Thanks to Richard Smith and Hubert Tong for their review and feedback!
https://reviews.llvm.org/D29748
llvm-svn: 295279
Previously, space in a BSS section for copy relocations are reserved
in a special way. We directly manipulated size of the BSS section.
r294577 changed the way of doing it. Now, we create an instance of
CopyRelSection (which is a synthetic input section) for each copy
relocation.
This patch removes the remains of the old way and add CopyRelSections
to BSS sections using `addSections` function, which is the usual
way to add an input section to an output section.
llvm-svn: 295278
This appears to be the only template argument deduction context where we were
missing this check. Surprisingly, other implementations also appear to miss
the check in this case; it may turn out that important code is relying on
the widespread non-conformance here, in which case we'll need to reconsider.
llvm-svn: 295277
effects was passed as an expression to assert() calls. If lldb is
built without asserts, the expression was eliminated and we lost
the side effects -- these methods stopped working.
<rdar://problem/30342959>
llvm-svn: 295271
After r264564, we allowed direct-list-initialization of an enum from an
integral value in C++1z mode, so long as that value can convert to the
enum's underlying type.
In this kind of initialization, we need a lvalue-to-rvalue conversion
for the initializer value if it is not a rvalue. This lets us accept the
following code:
enum class A : unsigned {};
A foo(unsigned x) { return A{x}; }
Differential Revision: https://reviews.llvm.org/D29723
llvm-svn: 295266
In the target dependent code we already always return a int64_t. In
the target independent code we carefully use uintX_t, which has the
same result given 2 complement rules.
This just simplifies the code to use int64_t everywhere.
llvm-svn: 295263
This reverts r294348, which removed support for conditional tail calls
due to the PR above. It fixes the PR by marking live registers as
implicitly used and defined by the now predicated tailcall. This is
similar to how IfConversion predicates instructions.
Differential Revision: https://reviews.llvm.org/D29856
llvm-svn: 295262
Summary:
Add in #ifdef to exclude cpu_model_test on non-X86 and *vfp_test on ARM targets without VFP support.
This is consistent with other target-specific tests that print "Skipped" if not supported.
Reviewers: rengolin, compnerd, asbirlea
Reviewed By: compnerd
Subscribers: llvm-commits, aemerson
Differential Revision: https://reviews.llvm.org/D29882
llvm-svn: 295261
Destructor references are not modelled explicitly in the AST. This adds
checks for destructor calls due to variable definitions and temporaries.
If a dllimport function references a non-dllimport destructor, it must
not be emitted available_externally, as the referenced destructor might
live across the DLL boundary and isn't exported.
llvm-svn: 295258
The function is used to check whether a type is a class with
non-dllimport destructor. It needs to look through typedefs and array
types.
llvm-svn: 295257
Uses a Custom implementation because the slot sizes being a multiple of the
pointer size isn't really universal, even for the architectures that do have a
simple "void *" va_list.
llvm-svn: 295255
Fixes PR 31921
Summary:
Predicateinfo requires an ugly workaround to try to avoid literal
struct types due to the intrinsic mangling not being implemented.
This workaround actually does not work in all cases (you can hit the
assert by bootstrapping with -print-predicateinfo), and can't be made
to work without DFS'ing the type (IE copying getMangledStr and using a
version that detects if it would crash).
Rather than do that, i just implemented the mangling. It seems
simple, since they are unified structurally.
Looking at the overloaded-mangling testcase we have, it actually turns
out the gc intrinsics will *also* crash if you try to use a literal
struct. Thus, the testcase added fails before this patch, and works
after, without needing to resort to predicateinfo.
Reviewers: chandlerc, davide
Subscribers: llvm-commits, sanjoy
Differential Revision: https://reviews.llvm.org/D29925
llvm-svn: 295253
Two functions that differ only in their enable_if attributes are
considered overloads, so we should check for those when we're trying to
figure out if two functions are mergeable.
We need to do the same thing for pass_object_size, as well. Looks like
that'll be a bit less trivial, since we sometimes do these merging
checks before we have pass_object_size attributes available (see the
merge checks in ASTDeclReader::VisitFunctionDecl that happen before we
read parameters, and merge checks in calls to ReadDeclAs<>()).
llvm-svn: 295252
For CloudABI I'm only interested in generating non-PIC/PIE executables
on armv6 and i686, as PIE introduces larger overhead than on aarch64 and
x86_64. Still, I want to be able to instruct the linker to generate a
dynamic symbol table if requested. One example use for this is that
dynamic symbol tables can be used by programs to print nicely formatted
stacktraces, including symbol names.
Right now there seems to be some logic in LLD that it only wants to emit
dynamic symbol tables when either linking against libraries or when
building PIC. Let's extend this to also take --export-dynamic into
account.
Reviewed by: ruiu
Differential Revision: https://reviews.llvm.org/D29982
llvm-svn: 295240
Summary:
In rL291613, the section name was interned in LLVMContext. However,
this broke the ability to remove the section from a GlobalObject,
because it tried to intern empty strings, which is not allowed.
Fix that and add an appropriate regression test.
Reviewed By: rnk
Differential Revision: https://reviews.llvm.org/D29795
llvm-svn: 295238
This is a short term solution to the problem that many passes currently fail
to update the assumption cache. In the long term the verifier should not
be controllable with a flag. We should either fix all passes to correctly
update the assumption cache and enable the verifier unconditionally or
somehow arrange for the assumption list to be updated automatically by passes.
Differential Revision: https://reviews.llvm.org/D30003
llvm-svn: 295236
Minor performance speedup - if any call to getShuffleScalarElt fails to get a result, don't both calling for the remaining elements as EltsFromConsecutiveLoads will fail anyhow.
llvm-svn: 295235
Fixed bug due to which a parent struct was deallocated when one of the struct's pointers was being unmapped.
Differential Revision: https://reviews.llvm.org/D29914
llvm-svn: 295231
They are register promoted by ISel and so it makes no sense to treat them as
memory.
Inserting calls to the thread sanitizer would also generate invalid IR.
You would hit:
"swifterror value can only be loaded and stored from, or as a swifterror
argument!"
llvm-svn: 295230
am_ldrlit diverged from am_brcond in r207105, but kept the OtherVT
operand type. It made sense for branch targets, as those are
represented as MVT::Other in SDAG. But loads operate on pointers.
This shouldn't have an observable effect on any in-tree code, but helps
make the patterns consistent for external users.
llvm-svn: 295229
Rui Ueyama