- This patch adds in support to determine whether a particular label
is valid for the hlasm variant
- The label syntax being checked is that of an ordinary HLASM symbol
(Reference, Chapter 2 (Coding and Structure) - Terms, Literals and
Expressions - Terms - Symbols - Ordinary Symbol)
- To achieve this, the virtual function isLabel defined in
MCTargetAsmParser.h is made use of
- The isLabel function is overridden in SystemZAsmParser for the
hlasm variant, and the syntax is checked appropriately
- Things remain unchanged for the att variant
- Further patches will add in support to emit the label. These future
patches will make use of this isLabel function
Reviewed By: uweigand, Kai
Differential Revision: https://reviews.llvm.org/D97748
7a46d34a19