Imported Upstream version 5.18.0.182

Former-commit-id: f9d55cf82631bfd710c387739687e5845296aea1

external/llvm/test/Analysis/ScalarEvolution/trip-count-switch.ll

@@ -1,30 +0,0 @@
-; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
-
-declare void @foo()
-
-define void @test1() nounwind {
-entry:
-  br label %for.cond
-
-for.cond:                                         ; preds = %if.end, %entry
-  %i.0 = phi i32 [ 2, %entry ], [ %dec, %if.end ]
-  switch i32 %i.0, label %if.end [
-    i32 0, label %for.end
-    i32 1, label %if.then
-  ]
-
-if.then:                                          ; preds = %for.cond
-  tail call void @foo()
-  br label %if.end
-
-if.end:                                           ; preds = %for.cond, %if.then
-  %dec = add nsw i32 %i.0, -1
-  br label %for.cond
-
-for.end:                                          ; preds = %for.cond
-  ret void
-
-; CHECK-LABEL: @test1
-; CHECK: Loop %for.cond: backedge-taken count is 2
-; CHECK: Loop %for.cond: max backedge-taken count is 2
-}