I.e., llvm/CodeGen/CommandFlags.h which in turn includes
llvm/MC/MCTargetOptionsCommandFlags.h.
This gets rid of a few duplicates on our side and includes about 35
(depending on LLVM version) new command-line options. LLVM provides a
helper function to set up the TargetOptions according to (most of) these
options.
Newer LLVM versions may add new options and we'll automatically inherit
them, including setting up the TargetOptions accordingly.
I did my best (TM) to remove a few unused/undesirable options and hide all
remaining new ones except for `-fp-contract`. The lists will need to be
tweaked from time to time.
For switches to be appended after the user switches (or right before the
first `-run` switch).
The sections inherit it (as well as `switches`) from the `default` section
if it isn't overridden explicitly.
Fixes issue #2186.
* Disable debug info for now Until I get it working.
* Don't recurse into uninstansiated templates
* Remove device only modules from objfiles.
* Remove typeid generation for dcompute.
* Dont generate typeinfo member functions
* Whitelist `__dcompute_reflect`
* Fix LLVM 5.0 compilation.
* Fix adding linker option metadata to LLVM module.
See https://reviews.llvm.org/D31349
* Version the SPIRV cache dir on travis.
When creating LLVM's TargetMachine, llvm::SubtargetFeatures::getFeatureBits()
is called 3 times, and the help is printed 3 times (or even 6 times when
specifying both `-mcpu=help -mattr=help`).
So use some new code making sure the help is printed only once and return
0 early without trying to compile anything (and so erroring if no source
files have been specified etc.).
Fixes issue #2073.
Simplify LDMD quite a bit by translating the few different command-line
options directly in-place. This puts some more stress onto LDC's
command-line parsing, especially due to multiple occurrences of a single
Boolean option (e.g., '-o-') or mixtures of `-m64` and `-m32` etc. for
dmd-testsuite.
Also add new command-line option `-verrors-spec` showing gagged errors
(DMD's equivalent is `-verrors=<spec|limit>`) and sync the usage text with
DMD. LDMD now also recognizes `-h` (and `/?` on Windows).
