[PATCH] D56793: [SelectionDAG] Add option -dag-dump-verbose-dbg

[Bjorn Pettersson via Phabricator via llvm-commits]

bjope added a comment.

@jmorse : Since you are working a little bit with the SelectionDAGBuilder and debug values etc, maybe you will find this patch helpful. It gives some more printouts for the "missing" DBG_VALUE nodes that normally isn't shown during ISel simply by using `-debug` or `-dag-dump-verbose`.

Before submitting this we need to decide upon a few things, such as:

1. should this be a separate option or could it simply be part of `-dag-dump-verbose`
2. should we convert `-dag-dump-verbose` into some multi-choice param with different verbosity levels

Maybe (1) is an acceptable solution.

Not sure about what kind of test cases that are needed for these. I haven't seen any test cases for `-dag-dump-verbose` so maybe it isn't that important to have tests for this kind of debugging aid?


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56793/new/

https://reviews.llvm.org/D56793