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

[Shilei Tian via llvm-commits]

================
@@ -1979,6 +1979,7 @@ class Pattern<dag patternToMatch, list<dag> resultInstrs> {
   list<dag>       ResultInstrs    = resultInstrs;
   list<Predicate> Predicates      = [];  // See class Instruction in Target.td.
   int             AddedComplexity = 0;   // See class Instruction in Target.td.
+  bit           GISelShouldIgnore = 0;
----------------
shiltian wrote:

alignment

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