Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/LoopUnroll/pr31718.ll

@@ -1,55 +0,0 @@
-; RUN: opt -loop-unroll -verify-loop-lcssa -S < %s | FileCheck %s
-
-target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
-target triple = "x86_64-unknown-linux-gnu"
-
-@b = external local_unnamed_addr global i32, align 4
-
-; CHECK-LABEL: @main
-; CHECK: exit.loopexit:
-; CHECK: {{.*}} = phi i32 [ %d.0, %h3 ]
-; CHECK: br label %exit
-; CHECK: exit.loopexit1:
-; CHECK: {{.*}} = phi i32 [ %d.0, %h3.1 ]
-; CHECK: br label %exit
-
-define void @main() local_unnamed_addr #0 {
-ph1:
-  br label %h1
-
-h1:
-  %d.0 = phi i32 [ %1, %latch1 ], [ undef, %ph1 ]
-  br label %ph2
-
-ph2:
-  br label %h2
-
-h2:
-  %0 = phi i32 [ 0, %ph2 ], [ %inc, %latch2 ]
-  br label %h3
-
-h3:
-  br i1 undef, label %latch3, label %exit
-
-latch3:
-  br i1 false, label %exit3, label %h3
-
-exit3:
-  br label %latch2
-
-latch2:
-  %inc = add nuw nsw i32 %0, 1
-  %cmp = icmp slt i32 %inc, 2
-  br i1 %cmp, label %h2, label %exit2
-
-exit2:
-  br i1 undef, label %latch1, label %ph2
-
-latch1:                 ; preds = %exit2
-  %1 = load i32, i32* @b, align 4
-  br label %h1
-
-exit:
-  %d.0.lcssa = phi i32 [ %d.0, %h3 ]
-  ret void
-}