[AsmMatcher] Extend PredicateMethod with optional DiagnosticPredicate
An optional, light-weight and backward-compatible mechanism to allow
specifying that a diagnostic _only_ applies to a partial mismatch (NearMiss),
rather than a full mismatch.
Patch [1/2] in a series to improve assembler diagnostics for SVE.
- Patch [1/2]: https://reviews.llvm.org/D45879
- Patch [2/2]: https://reviews.llvm.org/D45880
Reviewers: olista01, stoklund, craig.topper, mcrosier, rengolin, echristo, fhahn, SjoerdMeijer, evandro, javed.absar
Reviewed By: olista01
Differential Revision: https://reviews.llvm.org/D45879
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@330930 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed
