[LLVMdev] Bang Operator (original) (raw)

Sky Flyer skylake007 at googlemail.com
Thu Jul 23 08:46:00 PDT 2015

Thanks Meador,

The confusion point for me is that, does ! as an operator (bang operator) add any meaning to the strconcat?

On Thu, Jul 23, 2015 at 5:25 PM, Meador Inge <meadori at gmail.com> wrote:

On Thu, Jul 23, 2015 at 9:53 AM, Sky Flyer <skylake007 at googlemail.com> wrote:

> Hello all, > > I don't find anything helping me understand the llvm bang operator. In the > llvm TableGen language reference, it only says: > > 'TableGen also has “bang operators” which have a wide variety of meanings:' > > I would be very thankful if someone can explain it to me. > > e.g. what does "!strconcat" or "!if" mean? Those are defined in the "Language Introduction":

http://llvm.org/docs/TableGen/LangIntro.html#tablegen-values-and-expressions Not sure why we have things split into three separate pages: * TableGen - http://llvm.org/docs/TableGen/index.html * Introduction - http://llvm.org/docs/TableGen/LangIntro.html * Reference - http://llvm.org/docs/TableGen/LangRef.html I consistently find myself lost between those pages. -- Meador -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20150723/5b35b5f8/attachment.html>

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