See bug 36572: https://bugs.llvm.org/show_bug.cgi?id=36572
This is the first part of an update.
This change adds description of:
- syntax of all GFX7/8/9 instructions we currently support (and which passed testing);
- instruction modifiers.
For your convenience, the change is also included in html format.
In the next update I'm planning to add a description of operands.