This avoids problems where we would codegen children of an
"inner" template instantiation (i.e. a member of a non-template
aggregate in another module) because we have no way to know the
outer (declare-only) entity exists in the respective
mustDefineSymbol invocation.
An example for this are the std.typecons.RefCounted internals of
std.file.DirIterator, as used from std.datetime and other modules.
This is not only inefficient, but also causes linking issues due
to attribute inference for these functions not having run yet
(and consequently the mangled name being different from the
actual definition).
This reverts commit 001a39642f, as
it leads to debug mode crashes in rt.lifetime and other modules.
Specifically, the type check assertion in IntegerExp::toInteger
(at expression.c:2017) is hit.
There might be still some pieces left here and there, and
there is certainly code that could be rewritten in a nicer
way with the 3.0 requirement out of the picture.
In some cases an assertion is triggered because the debug context of a
local variale is verified. It turns out that LLVM returns always false
for DISubprogram.Verify() if the return type is not a composite type.
Reading the Clang source it looks like the return type must be a
subroutine type. This commit introduces a dummy subroutine type to
define the return type.
1. Main include corresponding to .cpp file, if any.
2. DMD and LDC includes.
3. LLVM includes.
4. System includes.
Also updated a few include guards to match the default format.
This reverts commit c4adbedcc, which would have fixed the
problem at its roots, but caused strange template function
attribute inference failures in D-YAML, presumably due to
the different order of semantic3 execution on the templates.
This is based on Item 2 of "More Effective C++". In general, the C++ cast operators are more expressive and easy to find,
e.g. by grep. Using const_cast also shuts up some compiler warnings.
Removed use of dyn_cast, llvm no compiles
without exceptions and rtti by
default. We do need exceptions for the libconfig stuff, but rtti isn't
necessary (anymore).
Debug info needs to be rewritten, as in LLVM 2.7 the format has
completely changed. To have something to look at while rewriting, the
old code has been wrapped inside #ifndef DISABLE_DEBUG_INFO , this means
that you have to define this to compile at the moment.
Updated tango 0.99.9 patch to include updated EH runtime code, which is
needed for LLVM 2.7 as well.
