Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/LoopDeletion/invalidation.ll

@@ -1,42 +0,0 @@
-; Ensure we don't run analyses over loops after they've been deleted. We run
-; one version with a no-op loop pass to make sure that the loop doesn't get
-; simplified away.
-;
-; RUN: opt < %s -passes='require<ivusers>,no-op-loop,require<ivusers>' -S \
-; RUN:     | FileCheck %s --check-prefixes=CHECK,BEFORE
-; RUN: opt < %s -passes='require<ivusers>,loop-deletion,require<ivusers>' -S \
-; RUN:     | FileCheck %s --check-prefixes=CHECK,AFTER
-
-
-define void @foo(i64 %n, i64 %m) nounwind {
-; CHECK-LABEL: @foo(
-
-entry:
-  br label %bb
-; CHECK:       entry:
-; BEFORE-NEXT:   br label %bb
-; AFTER-NEXT:    br label %return
-
-bb:
-  %x.0 = phi i64 [ 0, %entry ], [ %t0, %bb2 ]
-  %t0 = add i64 %x.0, 1
-  %t1 = icmp slt i64 %x.0, %n
-  br i1 %t1, label %bb2, label %return
-; BEFORE:      bb:
-; BEFORE:        br i1 {{.*}}, label %bb2, label %return
-; AFTER-NOT:   bb:
-; AFTER-NOT:     br
-
-bb2:
-  %t2 = icmp slt i64 %x.0, %m
-  br i1 %t1, label %bb, label %return
-; BEFORE:      bb2:
-; BEFORE:        br i1 {{.*}}, label %bb, label %return
-; AFTER-NOT:   bb2:
-; AFTER-NOT:     br
-
-return:
-  ret void
-; CHECK:       return:
-; CHECK-NEXT:    ret void
-}