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Author SHA1 Message Date
Cullen Rhodes d968b173d3 [TableGen] Emit a warning for unused template args 
Add a warning to TableGen for unused template arguments in classes and
multiclasses, for example:

  multiclass Foo<int x> {
    def bar;
  }

  $ llvm-tblgen foo.td

  foo.td:1:20: warning: unused template argument: Foo::x
  multiclass Foo<int x> {
                     ^
A flag '--no-warn-on-unused-template-args' is added to disable the
warning. The warning is disabled for LLVM and sub-projects if
'LLVM_ENABLE_WARNINGS=OFF'.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D109359
 2021-11-03 11:55:07 +00:00
Nicolai Haehnle b537605956 TableGen: add !isa operation 
Change-Id: Iddb724c3ae706d82933a2d82c91d07e0e36b30e3

Differential revision: https://reviews.llvm.org/D44105

llvm-svn: 327117
 2018-03-09 12:24:06 +00:00