[llvm] [TableGen] New tblgen Instruction bit to disable DAGISel pattern imports (PR #88382)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,37 @@
+// RUN: llvm-tblgen --gen-dag-isel -I %p/../../include %s -DIGNORE | FileCheck %s
+// RUN: llvm-tblgen --gen-dag-isel -I %p/../../include %s --match-prefix=CHECK_LOOK | FileCheck --check-prefix=CHECK_LOOK %s
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arsenm wrote:

Should also generate globalisel and show that did import, and didn't produce the warning. The whole point is to not get warned on -warn-on-skipped-patterns 

https://github.com/llvm/llvm-project/pull/88382