[llvm-dev] RFC: [FileCheck] CHECK-DAG for multiple occurrences of string

Joel E. Denny via llvm-dev llvm-dev at lists.llvm.org
Mon May 7 10:06:50 PDT 2018

Hi Paul,

On Mon, May 7, 2018 at 12:56 PM, <paul.robinson at sony.com> wrote:

> > 1. In a CHECK-DAG group, don't let the matches for patterns overlap.
> > 2. Add a new CHECK-DAG-N directive, where N is some integer, to express
> > that a pattern must have N non-overlapping matches.
> I think #1 is much more intuitive and easy to describe/document than #2.


> Changing the meaning of DAG in that way is highly unlikely to affect any
> existing test, IMO.  And if it does, my first expectation is that the test
> wasn't doing what the author intended anyway.

I'm glad to hear that.  I'll look into #1.



> --paulr
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