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The body of member functions of a templated class only gets instantiated
when the function is used. These `CXXMethodDecl` should not be deleted
from the AST; instead return them to the 'instantiation pending' state.
This expands the handling introduced in commit 31e46a65f6 to include
the length modifiers 'short' and 'long' as mentioned back then. It
still doesn't handle the cases of multiple modifiers such as "unsigned
long long int" and "long int unsigned long" (being the same type).
Fixes https://github.com/root-project/root/issues/13288
Otherwise they are emitted as internal and we get double-construction
and -destruction on the same memory address due to the way we promote
internal declarations in KeepLocalGVPass.
According to upstream tests, the de-duplication doesn't work on Windows
(yet), but I think this problem is severe enough to fix it on the other
platforms sooner rather than later.
Fixes#13429
This will be required for future LLVM upgrades that rely on a common
cmake/ directory next to clang/ and llvm/.
The bulk of this change is the result of the following commands:
$ mkdir interpreter/llvm-project/
$ git mv interpreter/llvm/src/tools/clang/ interpreter/llvm-project/clang/
$ git mv interpreter/llvm/src/ interpreter/llvm-project/llvm/
$ git mv interpreter/llvm/llvm-project.tag interpreter/llvm-project/llvm-project.tag
Before showing command promt or executing scripts from argv,
enumerate .C files in the directory ${CLING_HOME}/.cling.d/ in alphabetic
order then .x them.
Search order of ${CLING_HOME}:
1. ${CLING_HOME} envvar
2. ${XDG_CONFIG_HOME}/cling/
3. ${HOME}/.config/cling/
4. ${HOME}/
`--enable-new-dtags` is needed in some toolchains to emit the new ELF dynamic
tags, i.e. RUNPATH.
Per ld(1) manual page: `By default, the new dynamic tags are not created.`
Clang diagnostic verification was unhappy with the previous state of
affairs. Move affected `expected-(warning|note)` markers to `Macros.h`.
Apparently, as Jonas Hahnfeld found, this failure originated in commit
8deb57c04a5ceea96533d095092fcd4f71d1df94, but is not to be reverted
per discussion in https://github.com/root-project/root/pull/12454.
In principle, for a TemplateDecl, `isDefinition()` issues a recursive
call passing the templated decl as a parameter. A `ConceptDecl` is
derived from `TemplateDecl`, however, it should always be considered
a definition.
Also, update the DeclShadowing test incorporating a C++20 concept.
Fixes#12779.
Make `FilteringDiagConsumer` also ignore -Wunused-result. Whether or not
such diagnostic is filtered depends on `CompilationOptions::IgnorePromptDiags`.
In particular, `IgnorePromptDiags` should _only_ be enabled for code parsed
via `Interpreter::EvaluateInternal()`. Thus, as of this commit `IgnorePromptDiags`
defaults to 0 in `makeDefaultCompilationOpts()`
The observable effect of this change is ignoring `-Wunused-result` for
wrapped code, e.g.
```c++
[[nodiscard]] int f() { return 0; }
// This yields `warning: ignoring return value of function declared with 'nodiscard' attribute [-Wunused-result]`
void g() { f(); }
f(); // but this should not
```
Since cling was ported to LLVM 13, it is required that the
`__cuda_register_globals` function and the `__cuda_fatbin_wrapper` and
`__cuda_gpubin_handle` variables are unique when defining a CUDA kernel.
Otherwise, the JIT is lazy and reuses the compiled version of
`__cuda_register_globals`, `__cuda_fatbin_wrapper` and `__cuda_gpubin_handle`
from the first CUDA kernel definition for all subsequent CUDA kernel
definitions, which in practice means that the PTX code from the first kernel is
re-registered each time.
Increase the default CUDA SM level to 35 because SM 20 is deprecated or
removed in the current CUDA SDK versions.
It is (again) necessary to call DefineUsedVTables() to enable (at
least) the emission of implicitly defined destructors overriding
the virtual destructor in a base class, see the added test.
Implicit instantiation of a function template calls
`DeclCollector::HandleCXXImplicitFunctionInstantiation()`, which appends the
FunctionDecl to the transaction. According to clang documentation, the body of
the function has not yet been instantiated. `HandleTopLevelDecl()` will be
called again for this decl at the end of the TU, which will append it
again to the transaction - same `Decl *`, different ConsumerCallInfo.
This is by design. However, unloading of decls in the transaction should
not process the same `Decl *` twice. In particular, entries with ConsumerCallInfo
== `kCCIHandleCXXImplicitFunctionInstantiation` will omitted.
Fixes issue #9850.
From SemaDeclCXX.cpp:
```
C++ [namespace.unnamed]p1. An unnamed-namespace-definition behaves as if it
were replaced by
namespace unique { /* empty body */ }
using namespace unique;
namespace unique { namespace-body }
where all occurrences of 'unique' in a translation unit are replaced by the same
identifier and this identifier differs from all other identifiers in the entire
program.
```
Thus, the first declaration of an unnamed namespace creates an implicit
UsingDirectiveDecl that makes the names available in the parent DC.
If we are reverting such first declaration, make sure we reset the anonymous
namespace for the parent DeclContext so that the implicit UsingDirectiveDecl
is created again when parsing the next anonymous namespace.
Fixes issue #7483.
This change was from MCJIT times and now is not needed anymore. Moreover, the
orcv2 jit infrastructure considers the llvm::Module immutable after it takes
control of it via emitModule. This change will allow us to migrate easier to
orcv2.
