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

[via llvm-commits]

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@@ -1,4 +1,5 @@
 // RUN: llvm-tblgen -gen-global-isel -I %p/../../include -I %p/Common %s -o - | FileCheck %s
+// RUN: llvm-tblgen -gen-global-isel -I %p/../../include -I %p/Common %s -o - -DIGNORE | FileCheck %s --check-prefix=CHECK0
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jofrn wrote:

There is a check for warning omission in `GlobalISelEmitterSkippedPatterns.td`.

The .inc check test can be removed. (Alternatively, a test that skips the import/warning in global yet keeps it within the Table in dag, so that we can check both .inc and warning in the same file could be useful.) Should I just remove it or add a new test (with or without .inc check)? We have the warning check already.

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