diff --git a/llvm/lib/Transforms/Scalar/NewGVN.cpp b/llvm/lib/Transforms/Scalar/NewGVN.cpp
--- a/llvm/lib/Transforms/Scalar/NewGVN.cpp
+++ b/llvm/lib/Transforms/Scalar/NewGVN.cpp
@@ -2803,6 +2803,8 @@
       RevisitOnReachabilityChange[PHIBlock].set(InstrToDFSNum(I));
     }
 
+    if (FoundVal != I)
+      addAdditionalUsers(FoundVal, I);
     PHIOps.push_back({FoundVal, PredBB});
     LLVM_DEBUG(dbgs() << "Found phi of ops operand " << *FoundVal << " in "
                       << getBlockName(PredBB) << "\n");
diff --git a/llvm/test/Transforms/NewGVN/pr36501-changed-after-3.ll b/llvm/test/Transforms/NewGVN/pr36501-changed-after-3.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Transforms/NewGVN/pr36501-changed-after-3.ll
@@ -0,0 +1,172 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -S < %s -newgvn | FileCheck %s
+
+; Test for PR36501.
+
+define void @func_1() local_unnamed_addr #0 {
+; CHECK-LABEL: @func_1(
+; CHECK-NEXT:    br label [[TMP1:%.*]]
+; CHECK:       1:
+; CHECK-NEXT:    [[DOT0:%.*]] = phi i32 [ -2022207984, [[TMP0:%.*]] ], [ 0, [[DOTLOOPEXIT_8:%.*]] ]
+; CHECK-NEXT:    br i1 undef, label [[TMP3:%.*]], label [[TMP2:%.*]]
+; CHECK:       2:
+; CHECK-NEXT:    br label [[TMP3]]
+; CHECK:       3:
+; CHECK-NEXT:    [[DOT1:%.*]] = phi i32 [ -1, [[TMP2]] ], [ [[DOT0]], [[TMP1]] ]
+; CHECK-NEXT:    [[TMP4:%.*]] = icmp eq i32 [[DOT1]], 0
+; CHECK-NEXT:    br i1 [[TMP4]], label [[DOTPREHEADER:%.*]], label [[DOTLOOPEXIT:%.*]]
+; CHECK:       .preheader:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH:%.*]], label [[DOTLOOPEXIT]]
+; CHECK:       .lr.ph:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH]], label [[DOTLOOPEXIT]]
+; CHECK:       .loopexit:
+; CHECK-NEXT:    [[PHIOFOPS:%.*]] = phi i1 [ [[TMP4]], [[TMP3]] ], [ true, [[DOTPREHEADER]] ], [ true, [[DOTLR_PH]] ]
+; CHECK-NEXT:    [[DOT4:%.*]] = phi i32 [ [[DOT1]], [[TMP3]] ], [ 0, [[DOTPREHEADER]] ], [ 0, [[DOTLR_PH]] ]
+; CHECK-NEXT:    br i1 [[PHIOFOPS]], label [[DOTPREHEADER_1:%.*]], label [[DOTLOOPEXIT_1:%.*]]
+; CHECK:       .preheader.1:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_1:%.*]], label [[DOTLOOPEXIT_1]]
+; CHECK:       .lr.ph.1:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_1]], label [[DOTLOOPEXIT_1]]
+; CHECK:       .loopexit.1:
+; CHECK-NEXT:    br i1 undef, label [[DOTPREHEADER_2:%.*]], label [[DOTLOOPEXIT_2:%.*]]
+; CHECK:       .preheader.2:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_2:%.*]], label [[DOTLOOPEXIT_2]]
+; CHECK:       .lr.ph.2:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_2]], label [[DOTLOOPEXIT_2]]
+; CHECK:       .loopexit.2:
+; CHECK-NEXT:    br i1 undef, label [[DOTPREHEADER_3:%.*]], label [[DOTLOOPEXIT_3:%.*]]
+; CHECK:       .preheader.3:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_3:%.*]], label [[DOTLOOPEXIT_3]]
+; CHECK:       .lr.ph.3:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_3]], label [[DOTLOOPEXIT_3]]
+; CHECK:       .loopexit.3:
+; CHECK-NEXT:    br i1 undef, label [[DOTPREHEADER_4:%.*]], label [[DOTLOOPEXIT_4:%.*]]
+; CHECK:       .preheader.4:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_4:%.*]], label [[DOTLOOPEXIT_4]]
+; CHECK:       .lr.ph.4:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_4]], label [[DOTLOOPEXIT_4]]
+; CHECK:       .loopexit.4:
+; CHECK-NEXT:    br i1 undef, label [[DOTPREHEADER_5:%.*]], label [[DOTLOOPEXIT_5:%.*]]
+; CHECK:       .preheader.5:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_5:%.*]], label [[DOTLOOPEXIT_5]]
+; CHECK:       .lr.ph.5:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_5]], label [[DOTLOOPEXIT_5]]
+; CHECK:       .loopexit.5:
+; CHECK-NEXT:    br i1 undef, label [[DOTPREHEADER_6:%.*]], label [[DOTLOOPEXIT_6:%.*]]
+; CHECK:       .preheader.6:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_6:%.*]], label [[DOTLOOPEXIT_6]]
+; CHECK:       .lr.ph.6:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_6]], label [[DOTLOOPEXIT_6]]
+; CHECK:       .loopexit.6:
+; CHECK-NEXT:    br i1 undef, label [[DOTPREHEADER_7:%.*]], label [[DOTLOOPEXIT_7:%.*]]
+; CHECK:       .preheader.7:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_7:%.*]], label [[DOTLOOPEXIT_7]]
+; CHECK:       .lr.ph.7:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_7]], label [[DOTLOOPEXIT_7]]
+; CHECK:       .loopexit.7:
+; CHECK-NEXT:    br i1 undef, label [[DOTPREHEADER_8:%.*]], label [[DOTLOOPEXIT_8]]
+; CHECK:       .preheader.8:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_8:%.*]], label [[DOTLOOPEXIT_8]]
+; CHECK:       .lr.ph.8:
+; CHECK-NEXT:    br i1 undef, label [[DOTLR_PH_8]], label [[DOTLOOPEXIT_8]]
+; CHECK:       .loopexit.8:
+; CHECK-NEXT:    br label [[TMP1]]
+;
+  br label %1
+
+1:                                                ; preds = %.loopexit.8, %0
+  %.0 = phi i32 [ -2022207984, %0 ], [ 0, %.loopexit.8 ]
+  %2 = icmp eq i16 undef, 0
+  br i1 %2, label %4, label %3
+
+3:                                                ; preds = %1
+  br label %4
+
+4:                                                ; preds = %3, %1
+  %.1 = phi i32 [ -1, %3 ], [ %.0, %1 ]
+  %5 = icmp eq i32 %.1, 0
+  br i1 %5, label %.preheader, label %.loopexit
+
+.preheader:                                       ; preds = %4
+  br i1 undef, label %.lr.ph, label %.loopexit
+
+.lr.ph:                                           ; preds = %.lr.ph, %.preheader
+  br i1 undef, label %.lr.ph, label %.loopexit
+
+.loopexit:                                        ; preds = %.lr.ph, %.preheader, %4
+  %.4 = phi i32 [ %.1, %4 ], [ 0, %.preheader ], [ 0, %.lr.ph ]
+  %6 = icmp eq i32 %.4, 0
+  br i1 %6, label %.preheader.1, label %.loopexit.1
+
+.preheader.1:                                     ; preds = %.loopexit
+  br i1 undef, label %.lr.ph.1, label %.loopexit.1
+
+.lr.ph.1:                                         ; preds = %.lr.ph.1, %.preheader.1
+  br i1 undef, label %.lr.ph.1, label %.loopexit.1
+
+.loopexit.1:                                      ; preds = %.lr.ph.1, %.preheader.1, %.loopexit
+  br i1 undef, label %.preheader.2, label %.loopexit.2
+
+.preheader.2:                                     ; preds = %.loopexit.1
+  br i1 undef, label %.lr.ph.2, label %.loopexit.2
+
+.lr.ph.2:                                         ; preds = %.lr.ph.2, %.preheader.2
+  br i1 undef, label %.lr.ph.2, label %.loopexit.2
+
+.loopexit.2:                                      ; preds = %.lr.ph.2, %.preheader.2, %.loopexit.1
+  br i1 undef, label %.preheader.3, label %.loopexit.3
+
+.preheader.3:                                     ; preds = %.loopexit.2
+  br i1 undef, label %.lr.ph.3, label %.loopexit.3
+
+.lr.ph.3:                                         ; preds = %.lr.ph.3, %.preheader.3
+  br i1 undef, label %.lr.ph.3, label %.loopexit.3
+
+.loopexit.3:                                      ; preds = %.lr.ph.3, %.preheader.3, %.loopexit.2
+  br i1 undef, label %.preheader.4, label %.loopexit.4
+
+.preheader.4:                                     ; preds = %.loopexit.3
+  br i1 undef, label %.lr.ph.4, label %.loopexit.4
+
+.lr.ph.4:                                         ; preds = %.lr.ph.4, %.preheader.4
+  br i1 undef, label %.lr.ph.4, label %.loopexit.4
+
+.loopexit.4:                                      ; preds = %.lr.ph.4, %.preheader.4, %.loopexit.3
+  br i1 undef, label %.preheader.5, label %.loopexit.5
+
+.preheader.5:                                     ; preds = %.loopexit.4
+  br i1 undef, label %.lr.ph.5, label %.loopexit.5
+
+.lr.ph.5:                                         ; preds = %.lr.ph.5, %.preheader.5
+  br i1 undef, label %.lr.ph.5, label %.loopexit.5
+
+.loopexit.5:                                      ; preds = %.lr.ph.5, %.preheader.5, %.loopexit.4
+  br i1 undef, label %.preheader.6, label %.loopexit.6
+
+.preheader.6:                                     ; preds = %.loopexit.5
+  br i1 undef, label %.lr.ph.6, label %.loopexit.6
+
+.lr.ph.6:                                         ; preds = %.lr.ph.6, %.preheader.6
+  br i1 undef, label %.lr.ph.6, label %.loopexit.6
+
+.loopexit.6:                                      ; preds = %.lr.ph.6, %.preheader.6, %.loopexit.5
+  br i1 undef, label %.preheader.7, label %.loopexit.7
+
+.preheader.7:                                     ; preds = %.loopexit.6
+  br i1 undef, label %.lr.ph.7, label %.loopexit.7
+
+.lr.ph.7:                                         ; preds = %.lr.ph.7, %.preheader.7
+  br i1 undef, label %.lr.ph.7, label %.loopexit.7
+
+.loopexit.7:                                      ; preds = %.lr.ph.7, %.preheader.7, %.loopexit.6
+  br i1 undef, label %.preheader.8, label %.loopexit.8
+
+.preheader.8:                                     ; preds = %.loopexit.7
+  br i1 undef, label %.lr.ph.8, label %.loopexit.8
+
+.lr.ph.8:                                         ; preds = %.lr.ph.8, %.preheader.8
+  br i1 undef, label %.lr.ph.8, label %.loopexit.8
+
+.loopexit.8:                                      ; preds = %.lr.ph.8, %.preheader.8, %.loopexit.7
+  br label %1
+}
diff --git a/llvm/test/Transforms/NewGVN/pr42422-changed-after-2.ll b/llvm/test/Transforms/NewGVN/pr42422-changed-after-2.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Transforms/NewGVN/pr42422-changed-after-2.ll
@@ -0,0 +1,143 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -S -newgvn < %s | FileCheck %s
+
+; Test for PR42422.
+
+define void @d() {
+; CHECK-LABEL: @d(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br label [[FOR_COND:%.*]]
+; CHECK:       for.cond:
+; CHECK-NEXT:    br label [[FOR_COND1:%.*]]
+; CHECK:       for.cond1:
+; CHECK-NEXT:    [[TMP0:%.*]] = phi i32 [ [[INC18:%.*]], [[FOR_INC17:%.*]] ], [ 0, [[FOR_COND]] ]
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i32 [[TMP0]], 1
+; CHECK-NEXT:    br i1 [[CMP]], label [[FOR_BODY:%.*]], label [[FOR_END19:%.*]]
+; CHECK:       for.body:
+; CHECK-NEXT:    br i1 undef, label [[FOR_BODY3:%.*]], label [[FOR_BODY_FOR_COND4_CRIT_EDGE:%.*]]
+; CHECK:       for.body.for.cond4_crit_edge:
+; CHECK-NEXT:    br label [[FOR_COND4:%.*]]
+; CHECK:       for.body3:
+; CHECK-NEXT:    br label [[CLEANUP14:%.*]]
+; CHECK:       for.cond4:
+; CHECK-NEXT:    br i1 undef, label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+; CHECK:       if.then:
+; CHECK-NEXT:    br label [[CLEANUP:%.*]]
+; CHECK:       if.end:
+; CHECK-NEXT:    br label [[FOR_COND6:%.*]]
+; CHECK:       for.cond6:
+; CHECK-NEXT:    [[TMP1:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_INC:%.*]] ], [ 0, [[IF_END]] ]
+; CHECK-NEXT:    [[CMP7:%.*]] = icmp sle i64 [[TMP1]], 1
+; CHECK-NEXT:    br i1 [[CMP7]], label [[FOR_INC]], label [[FOR_END9:%.*]]
+; CHECK:       for.inc:
+; CHECK-NEXT:    [[INC]] = add nsw i64 [[TMP1]], 1
+; CHECK-NEXT:    br label [[FOR_COND6]]
+; CHECK:       for.end9:
+; CHECK-NEXT:    br i1 true, label [[IF_THEN11:%.*]], label [[IF_END12:%.*]]
+; CHECK:       if.then11:
+; CHECK-NEXT:    br label [[CLEANUP]]
+; CHECK:       if.end12:
+; CHECK-NEXT:    store i8 undef, i8* null
+; CHECK-NEXT:    br label [[CLEANUP]]
+; CHECK:       cleanup:
+; CHECK-NEXT:    [[CLEANUP_DEST:%.*]] = phi i32 [ undef, [[IF_END12]] ], [ 1, [[IF_THEN11]] ], [ 9, [[IF_THEN]] ]
+; CHECK-NEXT:    switch i32 [[CLEANUP_DEST]], label [[CLEANUP14]] [
+; CHECK-NEXT:    i32 0, label [[FOR_COND4]]
+; CHECK-NEXT:    i32 9, label [[FOR_END13:%.*]]
+; CHECK-NEXT:    ]
+; CHECK:       for.end13:
+; CHECK-NEXT:    br label [[CLEANUP14]]
+; CHECK:       cleanup14:
+; CHECK-NEXT:    [[CLEANUP_DEST15:%.*]] = phi i32 [ 0, [[FOR_END13]] ], [ [[CLEANUP_DEST]], [[CLEANUP]] ], [ 1, [[FOR_BODY3]] ]
+; CHECK-NEXT:    [[COND1:%.*]] = icmp eq i32 [[CLEANUP_DEST15]], 0
+; CHECK-NEXT:    br i1 [[COND1]], label [[FOR_INC17]], label [[CLEANUP20:%.*]]
+; CHECK:       for.inc17:
+; CHECK-NEXT:    [[INC18]] = add nsw i32 [[TMP0]], 1
+; CHECK-NEXT:    br label [[FOR_COND1]]
+; CHECK:       for.end19:
+; CHECK-NEXT:    br label [[CLEANUP20]]
+; CHECK:       cleanup20:
+; CHECK-NEXT:    [[PHIOFOPS:%.*]] = phi i1 [ true, [[FOR_END19]] ], [ [[COND1]], [[CLEANUP14]] ]
+; CHECK-NEXT:    [[CLEANUP_DEST21:%.*]] = phi i32 [ [[CLEANUP_DEST15]], [[CLEANUP14]] ], [ 0, [[FOR_END19]] ]
+; CHECK-NEXT:    br i1 [[PHIOFOPS]], label [[FOR_COND]], label [[CLEANUP23:%.*]]
+; CHECK:       cleanup23:
+; CHECK-NEXT:    ret void
+;
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %cleanup20, %entry
+  br label %for.cond1
+
+for.cond1:                                        ; preds = %for.inc17, %for.cond
+  %0 = phi i32 [ %inc18, %for.inc17 ], [ 0, %for.cond ]
+  %cmp = icmp sle i32 %0, 1
+  br i1 %cmp, label %for.body, label %for.end19
+
+for.body:                                         ; preds = %for.cond1
+  %tobool = icmp ne i32 undef, 0
+  br i1 %tobool, label %for.body3, label %for.body.for.cond4_crit_edge
+
+for.body.for.cond4_crit_edge:                     ; preds = %for.body
+  br label %for.cond4
+
+for.body3:                                        ; preds = %for.body
+  br label %cleanup14
+
+for.cond4:                                        ; preds = %cleanup, %for.body.for.cond4_crit_edge
+  br i1 undef, label %if.then, label %if.end
+
+if.then:                                          ; preds = %for.cond4
+  br label %cleanup
+
+if.end:                                           ; preds = %for.cond4
+  br label %for.cond6
+
+for.cond6:                                        ; preds = %for.inc, %if.end
+  %1 = phi i64 [ %inc, %for.inc ], [ 0, %if.end ]
+  %cmp7 = icmp sle i64 %1, 1
+  br i1 %cmp7, label %for.inc, label %for.end9
+
+for.inc:                                          ; preds = %for.cond6
+  %inc = add nsw i64 %1, 1
+  br label %for.cond6
+
+for.end9:                                         ; preds = %for.cond6
+  br i1 true, label %if.then11, label %if.end12
+
+if.then11:                                        ; preds = %for.end9
+  br label %cleanup
+
+if.end12:                                         ; preds = %for.end9
+  br label %cleanup
+
+cleanup:                                          ; preds = %if.end12, %if.then11, %if.then
+  %cleanup.dest = phi i32 [ undef, %if.end12 ], [ 1, %if.then11 ], [ 9, %if.then ]
+  switch i32 %cleanup.dest, label %cleanup14 [
+  i32 0, label %for.cond4
+  i32 9, label %for.end13
+  ]
+
+for.end13:                                        ; preds = %cleanup
+  br label %cleanup14
+
+cleanup14:                                        ; preds = %for.end13, %cleanup, %for.body3
+  %cleanup.dest15 = phi i32 [ 0, %for.end13 ], [ %cleanup.dest, %cleanup ], [ 1, %for.body3 ]
+  %cond1 = icmp eq i32 %cleanup.dest15, 0
+  br i1 %cond1, label %for.inc17, label %cleanup20
+
+for.inc17:                                        ; preds = %cleanup14
+  %inc18 = add nsw i32 %0, 1
+  br label %for.cond1
+
+for.end19:                                        ; preds = %for.cond1
+  br label %cleanup20
+
+cleanup20:                                        ; preds = %for.end19, %cleanup14
+  %cleanup.dest21 = phi i32 [ %cleanup.dest15, %cleanup14 ], [ 0, %for.end19 ]
+  %cond = icmp eq i32 %cleanup.dest21, 0
+  br i1 %cond, label %for.cond, label %cleanup23
+
+cleanup23:                                        ; preds = %cleanup20
+  ret void
+}
diff --git a/llvm/test/Transforms/NewGVN/pr42557-changed-after-1.ll b/llvm/test/Transforms/NewGVN/pr42557-changed-after-1.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Transforms/NewGVN/pr42557-changed-after-1.ll
@@ -0,0 +1,68 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -S -newgvn < %s | FileCheck %s
+
+; Test for PR42557.
+
+declare void @use1(i1)
+declare i1 @get1()
+
+define void @hoge(i32 %tmp6) {
+; CHECK-LABEL: @hoge(
+; CHECK-NEXT:  bb:
+; CHECK-NEXT:    [[A:%.*]] = call i1 @get1()
+; CHECK-NEXT:    [[B:%.*]] = call i1 @get1()
+; CHECK-NEXT:    br label [[BB1:%.*]]
+; CHECK:       bb1:
+; CHECK-NEXT:    [[TMP:%.*]] = phi i32 [ 0, [[BB:%.*]] ], [ [[TMP6:%.*]], [[BB1]] ]
+; CHECK-NEXT:    br i1 [[A]], label [[BB2:%.*]], label [[BB1]]
+; CHECK:       bb2:
+; CHECK-NEXT:    br i1 [[B]], label [[BB16:%.*]], label [[BB11:%.*]]
+; CHECK:       bb16:
+; CHECK-NEXT:    [[TMP17:%.*]] = add i32 [[TMP]], 1
+; CHECK-NEXT:    br label [[BB11]]
+; CHECK:       bb11:
+; CHECK-NEXT:    [[TMP12:%.*]] = phi i32 [ [[TMP17]], [[BB16]] ], [ 0, [[BB2]] ]
+; CHECK-NEXT:    [[TMP13:%.*]] = icmp eq i32 [[TMP12]], 0
+; CHECK-NEXT:    call void @use1(i1 [[TMP13]])
+; CHECK-NEXT:    [[TMP15:%.*]] = icmp ne i32 [[TMP]], 0
+; CHECK-NEXT:    br i1 [[TMP15]], label [[BB18:%.*]], label [[BB19:%.*]]
+; CHECK:       bb18:
+; CHECK-NEXT:    br label [[BB19]]
+; CHECK:       bb19:
+; CHECK-NEXT:    [[PHIOFOPS:%.*]] = phi i1 [ [[TMP13]], [[BB11]] ], [ false, [[BB18]] ]
+; CHECK-NEXT:    [[TMP20:%.*]] = phi i32 [ [[TMP12]], [[BB11]] ], [ 1, [[BB18]] ]
+; CHECK-NEXT:    call void @use1(i1 [[PHIOFOPS]])
+; CHECK-NEXT:    ret void
+;
+bb:
+  %A = call i1 @get1()
+  %B = call i1 @get1()
+  br label %bb1
+
+bb1:                                              ; preds = %bb1, %bb
+  %tmp = phi i32 [ 0, %bb ], [ %tmp6, %bb1 ]
+  br i1 %A, label %bb2, label %bb1
+
+bb2:                                              ; preds = %bb1
+  br i1 %B, label %bb16, label %bb11
+
+bb16:                                             ; preds = %bb2
+  %tmp17 = add i32 %tmp, 1
+  br label %bb11
+
+bb11:                                             ; preds = %bb16, %bb2
+  %tmp12 = phi i32 [ %tmp17, %bb16 ], [ 0, %bb2 ]
+  %tmp13 = icmp eq i32 %tmp12, 0
+  call void @use1(i1 %tmp13)
+  %tmp15 = icmp ne i32 %tmp, 0
+  br i1 %tmp15, label %bb18, label %bb19
+
+bb18:                                             ; preds = %bb11
+  br label %bb19
+
+bb19:                                             ; preds = %bb18, %bb11
+  %tmp20 = phi i32 [ %tmp12, %bb11 ], [ 1, %bb18 ]
+  %tmp21 = icmp eq i32 %tmp20, 0
+  call void @use1(i1 %tmp21)
+  ret void
+}