llvm/test/Transforms/LoopDistribute/non-lcssa-input.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt -passes=loop-distribute -enable-loop-distribute -verify-loop-info -verify-dom-info -S < %s | FileCheck %s

; LoopDistribute forms LCSSA before versioning a non-LCSSA loop, so a raw
; exit-block use is rewritten through an exit PHI instead of staying tied to the
; original loop and failing to dominate the shared exit after cloning.

define void @non_lcssa_exit_use(ptr %a, ptr %b, ptr %c, ptr %sum.out) {
; CHECK-LABEL: define void @non_lcssa_exit_use(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[SUM_OUT:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[FOR_BODY_LVER_CHECK:.*]]
; CHECK:       [[FOR_BODY_LVER_CHECK]]:
; CHECK-NEXT:    [[SCEVGEP:%.*]] = getelementptr i8, ptr [[A]], i64 84
; CHECK-NEXT:    [[SCEVGEP2:%.*]] = getelementptr i8, ptr [[C]], i64 80
; CHECK-NEXT:    [[BOUND0:%.*]] = icmp ult ptr [[A]], [[SCEVGEP2]]
; CHECK-NEXT:    [[BOUND1:%.*]] = icmp ult ptr [[C]], [[SCEVGEP]]
; CHECK-NEXT:    [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
; CHECK-NEXT:    br i1 [[FOUND_CONFLICT]], label %[[FOR_BODY_PH_LVER_ORIG:.*]], label %[[FOR_BODY_PH_LDIST1:.*]]
; CHECK:       [[FOR_BODY_PH_LVER_ORIG]]:
; CHECK-NEXT:    br label %[[FOR_BODY_LVER_ORIG:.*]]
; CHECK:       [[FOR_BODY_LVER_ORIG]]:
; CHECK-NEXT:    [[IND_LVER_ORIG:%.*]] = phi i64 [ 0, %[[FOR_BODY_PH_LVER_ORIG]] ], [ [[ADD_LVER_ORIG:%.*]], %[[FOR_BODY_LVER_ORIG]] ]
; CHECK-NEXT:    [[SUM_LVER_ORIG:%.*]] = phi i32 [ 0, %[[FOR_BODY_PH_LVER_ORIG]] ], [ [[SUM_ADD_LVER_ORIG:%.*]], %[[FOR_BODY_LVER_ORIG]] ]
; CHECK-NEXT:    [[ARRAYIDXA_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IND_LVER_ORIG]]
; CHECK-NEXT:    [[LOADA_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDXA_LVER_ORIG]], align 4
; CHECK-NEXT:    [[ARRAYIDXB_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[IND_LVER_ORIG]]
; CHECK-NEXT:    [[LOADB_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDXB_LVER_ORIG]], align 4
; CHECK-NEXT:    [[MULA_LVER_ORIG:%.*]] = mul i32 [[LOADB_LVER_ORIG]], [[LOADA_LVER_ORIG]]
; CHECK-NEXT:    [[ADD_LVER_ORIG]] = add nuw nsw i64 [[IND_LVER_ORIG]], 1
; CHECK-NEXT:    [[ARRAYIDXA_PLUS_4_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[ADD_LVER_ORIG]]
; CHECK-NEXT:    store i32 [[MULA_LVER_ORIG]], ptr [[ARRAYIDXA_PLUS_4_LVER_ORIG]], align 4
; CHECK-NEXT:    [[ARRAYIDXC_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[IND_LVER_ORIG]]
; CHECK-NEXT:    [[LOADC_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDXC_LVER_ORIG]], align 4
; CHECK-NEXT:    [[SUM_ADD_LVER_ORIG]] = add nuw nsw i32 [[SUM_LVER_ORIG]], [[LOADC_LVER_ORIG]]
; CHECK-NEXT:    [[EXITCOND_LVER_ORIG:%.*]] = icmp eq i64 [[ADD_LVER_ORIG]], 20
; CHECK-NEXT:    br i1 [[EXITCOND_LVER_ORIG]], label %[[FOR_END_LOOPEXIT:.*]], label %[[FOR_BODY_LVER_ORIG]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK:       [[FOR_BODY_PH_LDIST1]]:
; CHECK-NEXT:    br label %[[FOR_BODY_LDIST1:.*]]
; CHECK:       [[FOR_BODY_LDIST1]]:
; CHECK-NEXT:    [[IND_LDIST1:%.*]] = phi i64 [ 0, %[[FOR_BODY_PH_LDIST1]] ], [ [[ADD_LDIST1:%.*]], %[[FOR_BODY_LDIST1]] ]
; CHECK-NEXT:    [[ARRAYIDXA_LDIST1:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IND_LDIST1]]
; CHECK-NEXT:    [[LOADA_LDIST1:%.*]] = load i32, ptr [[ARRAYIDXA_LDIST1]], align 4, !alias.scope [[META2:![0-9]+]], !noalias [[META5:![0-9]+]]
; CHECK-NEXT:    [[ARRAYIDXB_LDIST1:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[IND_LDIST1]]
; CHECK-NEXT:    [[LOADB_LDIST1:%.*]] = load i32, ptr [[ARRAYIDXB_LDIST1]], align 4, !alias.scope [[META7:![0-9]+]]
; CHECK-NEXT:    [[MULA_LDIST1:%.*]] = mul i32 [[LOADB_LDIST1]], [[LOADA_LDIST1]]
; CHECK-NEXT:    [[ADD_LDIST1]] = add nuw nsw i64 [[IND_LDIST1]], 1
; CHECK-NEXT:    [[ARRAYIDXA_PLUS_4_LDIST1:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[ADD_LDIST1]]
; CHECK-NEXT:    store i32 [[MULA_LDIST1]], ptr [[ARRAYIDXA_PLUS_4_LDIST1]], align 4, !alias.scope [[META2]], !noalias [[META5]]
; CHECK-NEXT:    [[EXITCOND_LDIST1:%.*]] = icmp eq i64 [[ADD_LDIST1]], 20
; CHECK-NEXT:    br i1 [[EXITCOND_LDIST1]], label %[[FOR_BODY_PH:.*]], label %[[FOR_BODY_LDIST1]]
; CHECK:       [[FOR_BODY_PH]]:
; CHECK-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK:       [[FOR_BODY]]:
; CHECK-NEXT:    [[IND:%.*]] = phi i64 [ 0, %[[FOR_BODY_PH]] ], [ [[ADD:%.*]], %[[FOR_BODY]] ]
; CHECK-NEXT:    [[SUM:%.*]] = phi i32 [ 0, %[[FOR_BODY_PH]] ], [ [[SUM_ADD:%.*]], %[[FOR_BODY]] ]
; CHECK-NEXT:    [[ADD]] = add nuw nsw i64 [[IND]], 1
; CHECK-NEXT:    [[ARRAYIDXC:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[IND]]
; CHECK-NEXT:    [[LOADC:%.*]] = load i32, ptr [[ARRAYIDXC]], align 4, !alias.scope [[META5]]
; CHECK-NEXT:    [[SUM_ADD]] = add nuw nsw i32 [[SUM]], [[LOADC]]
; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[ADD]], 20
; CHECK-NEXT:    br i1 [[EXITCOND]], label %[[FOR_END_LOOPEXIT3:.*]], label %[[FOR_BODY]]
; CHECK:       [[FOR_END_LOOPEXIT]]:
; CHECK-NEXT:    [[SUM_ADD_LCSSA1_PH:%.*]] = phi i32 [ [[SUM_ADD_LVER_ORIG]], %[[FOR_BODY_LVER_ORIG]] ]
; CHECK-NEXT:    [[SUM_ADD_LCSSA_PH:%.*]] = phi i32 [ [[SUM_ADD_LVER_ORIG]], %[[FOR_BODY_LVER_ORIG]] ]
; CHECK-NEXT:    br label %[[FOR_END:.*]]
; CHECK:       [[FOR_END_LOOPEXIT3]]:
; CHECK-NEXT:    [[SUM_ADD_LCSSA1_PH4:%.*]] = phi i32 [ [[SUM_ADD]], %[[FOR_BODY]] ]
; CHECK-NEXT:    [[SUM_ADD_LCSSA_PH5:%.*]] = phi i32 [ [[SUM_ADD]], %[[FOR_BODY]] ]
; CHECK-NEXT:    br label %[[FOR_END]]
; CHECK:       [[FOR_END]]:
; CHECK-NEXT:    [[SUM_ADD_LCSSA1:%.*]] = phi i32 [ [[SUM_ADD_LCSSA1_PH]], %[[FOR_END_LOOPEXIT]] ], [ [[SUM_ADD_LCSSA1_PH4]], %[[FOR_END_LOOPEXIT3]] ]
; CHECK-NEXT:    [[SUM_ADD_LCSSA:%.*]] = phi i32 [ [[SUM_ADD_LCSSA_PH]], %[[FOR_END_LOOPEXIT]] ], [ [[SUM_ADD_LCSSA_PH5]], %[[FOR_END_LOOPEXIT3]] ]
; CHECK-NEXT:    store i32 [[SUM_ADD_LCSSA1]], ptr [[SUM_OUT]], align 4
; CHECK-NEXT:    ret void
;
entry:
  br label %for.body

for.body:
  %ind = phi i64 [ 0, %entry ], [ %add, %for.body ]
  %sum = phi i32 [ 0, %entry ], [ %sum_add, %for.body ]
  %arrayidxA = getelementptr inbounds i32, ptr %a, i64 %ind
  %loadA = load i32, ptr %arrayidxA, align 4
  %arrayidxB = getelementptr inbounds i32, ptr %b, i64 %ind
  %loadB = load i32, ptr %arrayidxB, align 4
  %mulA = mul i32 %loadB, %loadA
  %add = add nuw nsw i64 %ind, 1
  %arrayidxA_plus_4 = getelementptr inbounds i32, ptr %a, i64 %add
  store i32 %mulA, ptr %arrayidxA_plus_4, align 4
  %arrayidxC = getelementptr inbounds i32, ptr %c, i64 %ind
  %loadC = load i32, ptr %arrayidxC, align 4
  %sum_add = add nuw nsw i32 %sum, %loadC
  %exitcond = icmp eq i64 %add, 20
  br i1 %exitcond, label %for.end, label %for.body

for.end:
  %sum_add.lcssa = phi i32 [ %sum_add, %for.body ]
  store i32 %sum_add, ptr %sum.out, align 4
  ret void
}

; Nested loops: the outer loop is in LCSSA form, but the inner (versioned) loop
; is not, because %sum_add is used raw in the inner exit block alongside its
; exit PHI.

define void @nested(ptr %a, ptr %b, ptr %c, ptr %sum.out, i64 %n) {
; CHECK-LABEL: define void @nested(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[SUM_OUT:%.*]], i64 [[N:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    [[SCEVGEP:%.*]] = getelementptr i8, ptr [[A]], i64 84
; CHECK-NEXT:    [[SCEVGEP2:%.*]] = getelementptr i8, ptr [[C]], i64 80
; CHECK-NEXT:    br label %[[OUTER_HEADER:.*]]
; CHECK:       [[OUTER_HEADER]]:
; CHECK-NEXT:    [[OIV:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[OIV_NEXT:%.*]], %[[OUTER_LATCH:.*]] ]
; CHECK-NEXT:    br label %[[FOR_BODY_LVER_CHECK:.*]]
; CHECK:       [[FOR_BODY_LVER_CHECK]]:
; CHECK-NEXT:    [[BOUND0:%.*]] = icmp ult ptr [[A]], [[SCEVGEP2]]
; CHECK-NEXT:    [[BOUND1:%.*]] = icmp ult ptr [[C]], [[SCEVGEP]]
; CHECK-NEXT:    [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
; CHECK-NEXT:    br i1 [[FOUND_CONFLICT]], label %[[FOR_BODY_PH_LVER_ORIG:.*]], label %[[FOR_BODY_PH_LDIST1:.*]]
; CHECK:       [[FOR_BODY_PH_LVER_ORIG]]:
; CHECK-NEXT:    br label %[[FOR_BODY_LVER_ORIG:.*]]
; CHECK:       [[FOR_BODY_LVER_ORIG]]:
; CHECK-NEXT:    [[IND_LVER_ORIG:%.*]] = phi i64 [ 0, %[[FOR_BODY_PH_LVER_ORIG]] ], [ [[ADD_LVER_ORIG:%.*]], %[[FOR_BODY_LVER_ORIG]] ]
; CHECK-NEXT:    [[SUM_LVER_ORIG:%.*]] = phi i32 [ 0, %[[FOR_BODY_PH_LVER_ORIG]] ], [ [[SUM_ADD_LVER_ORIG:%.*]], %[[FOR_BODY_LVER_ORIG]] ]
; CHECK-NEXT:    [[ARRAYIDXA_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IND_LVER_ORIG]]
; CHECK-NEXT:    [[LOADA_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDXA_LVER_ORIG]], align 4
; CHECK-NEXT:    [[ARRAYIDXB_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[IND_LVER_ORIG]]
; CHECK-NEXT:    [[LOADB_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDXB_LVER_ORIG]], align 4
; CHECK-NEXT:    [[MULA_LVER_ORIG:%.*]] = mul i32 [[LOADB_LVER_ORIG]], [[LOADA_LVER_ORIG]]
; CHECK-NEXT:    [[ADD_LVER_ORIG]] = add nuw nsw i64 [[IND_LVER_ORIG]], 1
; CHECK-NEXT:    [[ARRAYIDXA_PLUS_4_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[ADD_LVER_ORIG]]
; CHECK-NEXT:    store i32 [[MULA_LVER_ORIG]], ptr [[ARRAYIDXA_PLUS_4_LVER_ORIG]], align 4
; CHECK-NEXT:    [[ARRAYIDXC_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[IND_LVER_ORIG]]
; CHECK-NEXT:    [[LOADC_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDXC_LVER_ORIG]], align 4
; CHECK-NEXT:    [[SUM_ADD_LVER_ORIG]] = add nuw nsw i32 [[SUM_LVER_ORIG]], [[LOADC_LVER_ORIG]]
; CHECK-NEXT:    [[EXITCOND_LVER_ORIG:%.*]] = icmp eq i64 [[ADD_LVER_ORIG]], 20
; CHECK-NEXT:    br i1 [[EXITCOND_LVER_ORIG]], label %[[INNER_EXIT_LOOPEXIT:.*]], label %[[FOR_BODY_LVER_ORIG]], !llvm.loop [[LOOP9:![0-9]+]]
; CHECK:       [[FOR_BODY_PH_LDIST1]]:
; CHECK-NEXT:    br label %[[FOR_BODY_LDIST1:.*]]
; CHECK:       [[FOR_BODY_LDIST1]]:
; CHECK-NEXT:    [[IND_LDIST1:%.*]] = phi i64 [ 0, %[[FOR_BODY_PH_LDIST1]] ], [ [[ADD_LDIST1:%.*]], %[[FOR_BODY_LDIST1]] ]
; CHECK-NEXT:    [[ARRAYIDXA_LDIST1:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IND_LDIST1]]
; CHECK-NEXT:    [[LOADA_LDIST1:%.*]] = load i32, ptr [[ARRAYIDXA_LDIST1]], align 4, !alias.scope [[META10:![0-9]+]], !noalias [[META13:![0-9]+]]
; CHECK-NEXT:    [[ARRAYIDXB_LDIST1:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[IND_LDIST1]]
; CHECK-NEXT:    [[LOADB_LDIST1:%.*]] = load i32, ptr [[ARRAYIDXB_LDIST1]], align 4, !alias.scope [[META15:![0-9]+]]
; CHECK-NEXT:    [[MULA_LDIST1:%.*]] = mul i32 [[LOADB_LDIST1]], [[LOADA_LDIST1]]
; CHECK-NEXT:    [[ADD_LDIST1]] = add nuw nsw i64 [[IND_LDIST1]], 1
; CHECK-NEXT:    [[ARRAYIDXA_PLUS_4_LDIST1:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[ADD_LDIST1]]
; CHECK-NEXT:    store i32 [[MULA_LDIST1]], ptr [[ARRAYIDXA_PLUS_4_LDIST1]], align 4, !alias.scope [[META10]], !noalias [[META13]]
; CHECK-NEXT:    [[EXITCOND_LDIST1:%.*]] = icmp eq i64 [[ADD_LDIST1]], 20
; CHECK-NEXT:    br i1 [[EXITCOND_LDIST1]], label %[[FOR_BODY_PH:.*]], label %[[FOR_BODY_LDIST1]]
; CHECK:       [[FOR_BODY_PH]]:
; CHECK-NEXT:    br label %[[FOR_BODY:.*]]
; CHECK:       [[FOR_BODY]]:
; CHECK-NEXT:    [[IND:%.*]] = phi i64 [ 0, %[[FOR_BODY_PH]] ], [ [[ADD:%.*]], %[[FOR_BODY]] ]
; CHECK-NEXT:    [[SUM:%.*]] = phi i32 [ 0, %[[FOR_BODY_PH]] ], [ [[SUM_ADD:%.*]], %[[FOR_BODY]] ]
; CHECK-NEXT:    [[ADD]] = add nuw nsw i64 [[IND]], 1
; CHECK-NEXT:    [[ARRAYIDXC:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[IND]]
; CHECK-NEXT:    [[LOADC:%.*]] = load i32, ptr [[ARRAYIDXC]], align 4, !alias.scope [[META13]]
; CHECK-NEXT:    [[SUM_ADD]] = add nuw nsw i32 [[SUM]], [[LOADC]]
; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[ADD]], 20
; CHECK-NEXT:    br i1 [[EXITCOND]], label %[[INNER_EXIT_LOOPEXIT3:.*]], label %[[FOR_BODY]]
; CHECK:       [[INNER_EXIT_LOOPEXIT]]:
; CHECK-NEXT:    [[SUM_ADD_LCSSA1_PH:%.*]] = phi i32 [ [[SUM_ADD_LVER_ORIG]], %[[FOR_BODY_LVER_ORIG]] ]
; CHECK-NEXT:    [[SUM_ADD_LCSSA_PH:%.*]] = phi i32 [ [[SUM_ADD_LVER_ORIG]], %[[FOR_BODY_LVER_ORIG]] ]
; CHECK-NEXT:    br label %[[INNER_EXIT:.*]]
; CHECK:       [[INNER_EXIT_LOOPEXIT3]]:
; CHECK-NEXT:    [[SUM_ADD_LCSSA1_PH4:%.*]] = phi i32 [ [[SUM_ADD]], %[[FOR_BODY]] ]
; CHECK-NEXT:    [[SUM_ADD_LCSSA_PH5:%.*]] = phi i32 [ [[SUM_ADD]], %[[FOR_BODY]] ]
; CHECK-NEXT:    br label %[[INNER_EXIT]]
; CHECK:       [[INNER_EXIT]]:
; CHECK-NEXT:    [[SUM_ADD_LCSSA1:%.*]] = phi i32 [ [[SUM_ADD_LCSSA1_PH]], %[[INNER_EXIT_LOOPEXIT]] ], [ [[SUM_ADD_LCSSA1_PH4]], %[[INNER_EXIT_LOOPEXIT3]] ]
; CHECK-NEXT:    [[SUM_ADD_LCSSA:%.*]] = phi i32 [ [[SUM_ADD_LCSSA_PH]], %[[INNER_EXIT_LOOPEXIT]] ], [ [[SUM_ADD_LCSSA_PH5]], %[[INNER_EXIT_LOOPEXIT3]] ]
; CHECK-NEXT:    store i32 [[SUM_ADD_LCSSA1]], ptr [[SUM_OUT]], align 4
; CHECK-NEXT:    br label %[[OUTER_LATCH]]
; CHECK:       [[OUTER_LATCH]]:
; CHECK-NEXT:    [[OIV_NEXT]] = add i64 [[OIV]], 1
; CHECK-NEXT:    [[OC:%.*]] = icmp slt i64 [[OIV_NEXT]], [[N]]
; CHECK-NEXT:    br i1 [[OC]], label %[[OUTER_HEADER]], label %[[OUTER_EXIT:.*]]
; CHECK:       [[OUTER_EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %outer.header

outer.header:
  %oiv = phi i64 [ 0, %entry ], [ %oiv.next, %outer.latch ]
  br label %for.body

for.body:
  %ind = phi i64 [ 0, %outer.header ], [ %add, %for.body ]
  %sum = phi i32 [ 0, %outer.header ], [ %sum_add, %for.body ]
  %arrayidxA = getelementptr inbounds i32, ptr %a, i64 %ind
  %loadA = load i32, ptr %arrayidxA, align 4
  %arrayidxB = getelementptr inbounds i32, ptr %b, i64 %ind
  %loadB = load i32, ptr %arrayidxB, align 4
  %mulA = mul i32 %loadB, %loadA
  %add = add nuw nsw i64 %ind, 1
  %arrayidxA_plus_4 = getelementptr inbounds i32, ptr %a, i64 %add
  store i32 %mulA, ptr %arrayidxA_plus_4, align 4
  %arrayidxC = getelementptr inbounds i32, ptr %c, i64 %ind
  %loadC = load i32, ptr %arrayidxC, align 4
  %sum_add = add nuw nsw i32 %sum, %loadC
  %exitcond = icmp eq i64 %add, 20
  br i1 %exitcond, label %inner.exit, label %for.body

inner.exit:
  %sum_add.lcssa = phi i32 [ %sum_add, %for.body ]
  store i32 %sum_add, ptr %sum.out, align 4
  br label %outer.latch

outer.latch:
  %oiv.next = add i64 %oiv, 1
  %oc = icmp slt i64 %oiv.next, %n
  br i1 %oc, label %outer.header, label %outer.exit

outer.exit:
  ret void
}
;.
; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]]}
; CHECK: [[META1]] = !{!"llvm.loop.isdistributed", i32 1}
; CHECK: [[META2]] = !{[[META3:![0-9]+]]}
; CHECK: [[META3]] = distinct !{[[META3]], [[META4:![0-9]+]]}
; CHECK: [[META4]] = distinct !{[[META4]], !"LVerDomain"}
; CHECK: [[META5]] = !{[[META6:![0-9]+]]}
; CHECK: [[META6]] = distinct !{[[META6]], [[META4]]}
; CHECK: [[META7]] = !{[[META8:![0-9]+]]}
; CHECK: [[META8]] = distinct !{[[META8]], [[META4]]}
; CHECK: [[LOOP9]] = distinct !{[[LOOP9]], [[META1]]}
; CHECK: [[META10]] = !{[[META11:![0-9]+]]}
; CHECK: [[META11]] = distinct !{[[META11]], [[META12:![0-9]+]]}
; CHECK: [[META12]] = distinct !{[[META12]], !"LVerDomain"}
; CHECK: [[META13]] = !{[[META14:![0-9]+]]}
; CHECK: [[META14]] = distinct !{[[META14]], [[META12]]}
; CHECK: [[META15]] = !{[[META16:![0-9]+]]}
; CHECK: [[META16]] = distinct !{[[META16]], [[META12]]}
;.