[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:

These records naturally do not produce a warning with `-warn-on-skipped-patterns` with or without `GISelShouldIgnore` though. This test just checks to see if the matcher omits them.

In the other test [test/TableGen/GlobalISelEmitterSkippedPatterns.td](https://github.com/llvm/llvm-project/pull/88382/files#diff-04bf1987d3970e5d2033f31034e8cb1f4ff40ab85db1f25aad8490ec25af9895), no record is generated in the MatchTable naturally, so that one simply checks for the warning.

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