Are there no cases where you want all of the input files to be compiled into a 
single executable?

From: Zachary Turner <ztur...@google.com>
Sent: Monday, December 3, 2018 3:36 PM
To: reviews+d55230+public+74273d963dffb...@reviews.llvm.org
Cc: pa...@labath.sk; Stella Stamenova <sti...@microsoft.com>; 
aleksandr.ura...@jetbrains.com; clayb...@gmail.com; mgo...@gentoo.org; 
lldb-commits@lists.llvm.org; l...@inglorion.net
Subject: Re: [PATCH] D55230: [lit] Multiple build outputs and default target 
bitness

If you have -o and multiple input files, which output file are you specifying? 
It seems easier to just say that if multiple input files are present, the 
output file names are automatically calculated
On Mon, Dec 3, 2018 at 2:48 PM Stella Stamenova via Phabricator 
<revi...@reviews.llvm.org<mailto:revi...@reviews.llvm.org>> wrote:
stella.stamenova added inline comments.


================
Comment at: lldb/lit/helper/build.py:664
+    if args.output and args.mode == 'compile' and len(args.inputs) > 1:
+        raise ValueError('Cannot specify -o with mode=compile and multiple 
source files.  Use --outdir instead.')
+
----------------
Why not? It makes sense that the test might still need to know and/or specify 
the name of the binary that was produced. The script could require that both -o 
and --outdir are specified, but I think -o is still needed.


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