• Kai Nacke (17/17) Mar 15 2015 Hi!
• Dan Olson (8/8) Mar 15 2015 I sometimes use, but rare.
• Johan Engelen (6/9) Apr 14 2015 I think this is still possible with the standard bool LLVM
• Johan Engelen (5/5) Mar 21 2015 Thanks for working on this Kai.
• David Nadlinger (6/8) Apr 10 2015 We might want to thinkg about making -singleobj the default at
• Temtaime (8/8) Apr 14 2015 I think ldc should come with options as original DMD. Nobody is

"Kai Nacke" <kai redstar.de> writes:

Hi!

Some command line options have a switch to turn them on and off, 
e.g. -enable-asserts and -disable-asserts.
These option pairs are only available for a handful of ldc2 
command line options. Every option defined inside the LLVM 
framework does not offer an opposite switch, e.g. 
-disable-red-zone exists but not -enable-red-zone.

With LLVM 3.7, an overhaul of the option code has started. In 
consequence, the implementation for the ldc2 option pairs does 
not work anymore. I have an idea how to fix it but this includes 
a fair amount of work.

Before I start fixing the code I would like to know if someone is 
using these options.

If not then I will deprecated these options and remove them by 
the time LLVM 3.7 is released (will be in late autumn).

Regards,
Kai

Dan Olson <zans.is.for.cans yahoo.com> writes:

I sometimes use, but rare.

Because inlining is enabled by default with -O2 and above:

ldc2 -output-s -O0 -enable-inlining xyzzy.d
ldc2 -output-s -O2 -disable-inlining xyzzy.d

If it is lots of work to keep with LLVM 3.7, then it is not worth it to
me.
--
Dan

"Johan Engelen" <j j.nl> writes:

On Sunday, 15 March 2015 at 15:39:15 UTC, Dan Olson wrote:
 Because inlining is enabled by default with -O2 and above:

 ldc2 -output-s -O0 -enable-inlining xyzzy.d
 ldc2 -output-s -O2 -disable-inlining xyzzy.d

I think this is still possible with the standard bool LLVM
option. It would look like:
   ldc2 -output-s -O0 -inlining=true xyzzy.d
   ldc2 -output-s -O2 -inlining=false xyzzy.d

See http://llvm.org/docs/CommandLine.html#boolean-arguments

"Johan Engelen" <j j.nl> writes:

Thanks for working on this Kai.
Our build relies on -disable-invariants being a valid cmdline 
switch, and so now LLVM 3.7 builds fail for me. (I'd like to be 
able to build with LLVM3.7 to compare exception handling between 
3.6/3.7 and work on issues that pop up in that area)

"David Nadlinger" <code klickverbot.at> writes:

On Sunday, 15 March 2015 at 14:20:00 UTC, Kai Nacke wrote:
 If not then I will deprecated these options and remove them by 
 the time LLVM 3.7 is released (will be in late autumn).

We might want to thinkg about making -singleobj the default at 
the same time to avoid people having to review their makefiles 
twice. Or, on the other hand, avoid doing two "breaking" changes 
at the same time. Either way, we should think about it.

  — David

"Temtaime" <temtaime gmail.com> writes:

I think ldc should come with options as original DMD. Nobody is 
interested in all those switches.
-debug
-release
-inline
-O
I think only one option should be added to this list:
-arch:(SSE3|SSE4|AVX|AVX2)