diff --git a/llvm/test/Transforms/SCCP/ipsccp-branch-unresolved-undef.ll b/llvm/test/Transforms/SCCP/ipsccp-branch-unresolved-undef.ll
index 38809ea4733faa..202fcf3a4f4a3f 100644
--- a/llvm/test/Transforms/SCCP/ipsccp-branch-unresolved-undef.ll
+++ b/llvm/test/Transforms/SCCP/ipsccp-branch-unresolved-undef.ll
@@ -1,9 +1,9 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature
 ; RUN: opt < %s -S -passes=ipsccp | FileCheck %s
 
 define void @main() {
-; CHECK-LABEL: @main(
-; CHECK:         %call = call i1 @patatino(i1 undef)
+; CHECK-LABEL: define {{[^@]+}}@main() {
+; CHECK-NEXT:    [[CALL:%.*]] = call i1 @patatino(i1 undef)
 ; CHECK-NEXT:    ret void
 ;
   %call = call i1 @patatino(i1 undef)
@@ -11,11 +11,12 @@ define void @main() {
 }
 
 define internal i1 @patatino(i1 %a) {
-; CHECK-LABEL: define internal i1 @patatino(
+; CHECK-LABEL: define {{[^@]+}}@patatino
+; CHECK-SAME: (i1 [[A:%.*]]) {
 ; CHECK-NEXT:    br label [[ONFALSE:%.*]]
-; CHECK-EMPTY:
-; CHECK-NEXT:  onfalse:
+; CHECK:       onfalse:
 ; CHECK-NEXT:    ret i1 undef
+;
   br i1 %a, label %ontrue, label %onfalse
 ontrue:
   ret i1 false
diff --git a/llvm/test/Transforms/SCCP/switch-undef-constantfoldterminator.ll b/llvm/test/Transforms/SCCP/switch-undef-constantfoldterminator.ll
index 62f15855e99885..f9a12f9f7667b6 100644
--- a/llvm/test/Transforms/SCCP/switch-undef-constantfoldterminator.ll
+++ b/llvm/test/Transforms/SCCP/switch-undef-constantfoldterminator.ll
@@ -1,4 +1,4 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature
 ; RUN: opt < %s -passes=ipsccp -S | FileCheck %s
 
 ; This test case used to end up like this:
@@ -15,7 +15,7 @@
 ; an unconditional branch when ConstantFoldTerminator returned true.
 
 define void @f4() {
-; CHECK-LABEL: define void @f4(
+; CHECK-LABEL: define {{[^@]+}}@f4() {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[CALL:%.*]] = call i16 @f3(i16 undef)
 ; CHECK-NEXT:    ret void
@@ -26,7 +26,8 @@ entry:
 }
 
 define internal i16 @f3(i16 %p1) {
-; CHECK-LABEL: define internal i16 @f3(
+; CHECK-LABEL: define {{[^@]+}}@f3
+; CHECK-SAME: (i16 [[P1:%.*]]) {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    br label [[LAND_END:%.*]]
 ; CHECK:       land.end: