DMD has the obscure functionality to install functions starting with
_STI_ as global ctors and funtions starting with _STD_ as global
dtors. IMHO a pragma is a better way to specify the behaviour.
This commit adds pragma(LDC_global_crt_ctor) and
pragma(LDC_global_crt_dtor). If the pragma is specified on a function
or static method then an entry is made in the corresponding list. E.g.
in monitor_.d:
extern (C) {
#pragma(LDC_global_crt_ctor)
void _STI_monitor_staticctor()
{
// ...
}
}
This works on Linux without problems. On Windows with MS C Runtime
ctors work always but dtors are invoked only if linked against the
static C runtime. Dtors on Windows require at least LLVM 3.2.
On Windows x86_64, class TypeInfo_Struct contains 2 additional fields
(m_arg1/m_arg2) which are used for the X86_64 System V ABI varargs
implementation. They are not present on any other os.
This commit changes an assertion which did not check for the os and therefore
broke on 64bit non-86 systems like ppc64.
Referencing alloca'd memory in tail calls is invalid IR. This was
not caught by the verifier, but produced misoptimizations due to
wrong alias analysis results.
This also allows us to enable the assert in IrType::IrType.
Unfortunately, this is mostly a "peace of mind" commit, there
doesn't seem to have been a bug actually caused by the transitory
duplicate IrTypePointer/IrTypeStruct instances.
The remaining xyz2llvm static methods are not exactly pretty,
they should probably just be folded into get.
I chose to fix the problem this way because it increases uniformity
between 'this' and normal explicit parameters. Another possibility
would be to just change the type determinatin code in
DtoCreateNestedContextType to not expect the value to be already
present, because it doesn't need it when isVthisPtr is true anyway.
GitHub: Fixes#217.
Just executing toConstElem speculatively in
AssocArrayLiteralExp::toElem probably isn't the best idea
anyway, I would not be surprised if there are other similar bugs.
GitHub: Fixes#248.
The Param struct is very different between DMD and LDC. This is a start
to mark the differences. This also includes identifying unused switches
- like the debug? switches.
