[gold] Fix tests after #76553 (NFC)

Author: nikic

llvm/test/tools/gold/X86/devirt_vcall_vis_export_dynamic.ll

@@ -116,7 +116,7 @@ target triple = "x86_64-grtev4-linux-gnu"
 ;; Prevent the vtables from being dead code eliminated.
 @llvm.used = appending global [3 x ptr] [ ptr @_ZTV1B, ptr @_ZTV1C, ptr @_ZTV1D]
 
-; CHECK-IR-LABEL: define dso_local i32 @_start
+; CHECK-IR-LABEL: define dso_local {{(noundef )?}}i32 @_start
 define i32 @_start(ptr %obj, ptr %obj2, i32 %a) {
 entry:
   %vtable = load ptr, ptr %obj

llvm/test/tools/gold/X86/devirt_vcall_vis_public.ll

@@ -74,7 +74,7 @@ target triple = "x86_64-grtev4-linux-gnu"
 ; Prevent the vtables from being dead code eliminated.
 @llvm.used = appending global [3 x ptr] [ ptr @_ZTV1B, ptr @_ZTV1C, ptr @_ZTV1D]
 
-; CHECK-IR-LABEL: define dso_local i32 @_start
+; CHECK-IR-LABEL: define dso_local {{(noundef )?}}i32 @_start
 define i32 @_start(ptr %obj, ptr %obj2, i32 %a) {
 entry:
   %vtable = load ptr, ptr %obj

llvm/test/tools/gold/X86/opt-level.ll

@@ -24,7 +24,7 @@ define internal void @foo() {
 }
 
 ; CHECK-O0: define internal i32 @bar(
-; CHECK-O1: define internal i32 @bar(
+; CHECK-O1: define internal noundef i32 @bar(
 define internal i32 @bar(i1 %p) {
   br i1 %p, label %t, label %f
 

llvm/test/tools/gold/X86/v1.16/devirt_vcall_vis_export_dynamic.ll

@@ -114,7 +114,7 @@ target triple = "x86_64-grtev4-linux-gnu"
 ;; Prevent the vtables from being dead code eliminated.
 @llvm.used = appending global [3 x ptr] [ ptr @_ZTV1B, ptr @_ZTV1C, ptr @_ZTV1D]
 
-; CHECK-IR-LABEL: define dso_local i32 @_start
+; CHECK-IR-LABEL: define dso_local {{(noundef )?}}i32 @_start
 define i32 @_start(ptr %obj, ptr %obj2, i32 %a) {
 entry:
   %vtable = load ptr, ptr %obj