[WPD] Remove undef from tests

Avoid the use of undef given it should be going away eventually and is
not reccomended for new use. To remove it we either use function
arguments or pass in a personality function declaration where relevant.

Author: boomanaiden154

llvm/test/Transforms/WholeProgramDevirt/calls-to-devirt.ll

@@ -41,15 +41,15 @@ define i32 @call1(ptr %obj) #0 {
   ret i32 %result
 }
 
-define i1 @call2(ptr %obj) #0 {
+define i1 @call2(ptr %obj, i32 %arg1) #0 {
   %vtable = load ptr, ptr %obj
   %pair = call {ptr, i1} @llvm.type.checked.load(ptr %vtable, i32 8, metadata !"typeid2")
   %fptr = extractvalue {ptr, i1} %pair, 0
   %p = extractvalue {ptr, i1} %pair, 1
   br i1 %p, label %cont, label %trap
 
 cont:
-  %result = call i1 %fptr(ptr %obj, i32 undef)
+  %result = call i1 %fptr(ptr %obj, i32 %arg1)
   ret i1 %result
 
 trap:

llvm/test/Transforms/WholeProgramDevirt/import-indir.ll

@@ -92,7 +92,7 @@ define i1 @f1(ptr %obj) {
 }
 
 ; CHECK: define i1 @f2
-define i1 @f2(ptr %obj) {
+define i1 @f2(ptr %obj, i32 %arg1) {
   %vtable = load ptr, ptr %obj
   %pair = call {ptr, i1} @llvm.type.checked.load(ptr %vtable, i32 4, metadata !"typeid1")
   %fptr = extractvalue {ptr, i1} %pair, 0
@@ -103,7 +103,7 @@ define i1 @f2(ptr %obj) {
 
 cont:
   ; CHECK: call i1 %
-  %result = call i1 %fptr(ptr %obj, i32 undef)
+  %result = call i1 %fptr(ptr %obj, i32 %arg1)
   ret i1 %result
 
 trap:

llvm/test/Transforms/WholeProgramDevirt/import.ll

@@ -40,7 +40,7 @@ define i32 @call1(ptr %obj) #0 {
 ; constant propagation.
 
 ; CHECK: define i1 @call2
-define i1 @call2(ptr %obj) #0 {
+define i1 @call2(ptr %obj, i32 %arg1) #0 {
   %vtable = load ptr, ptr %obj
   %pair = call {ptr, i1} @llvm.type.checked.load(ptr %vtable, i32 8, metadata !"typeid2")
   %fptr = extractvalue {ptr, i1} %pair, 0
@@ -51,8 +51,8 @@ define i1 @call2(ptr %obj) #0 {
 cont:
   ; SINGLE-IMPL: call i1 @singleimpl2
   ; INDIR: call i1 %
-  ; BRANCH-FUNNEL: call i1 @__typeid_typeid2_8_branch_funnel(ptr nest %vtable, ptr %obj, i32 undef)
-  %result = call i1 %fptr(ptr %obj, i32 undef)
+  ; BRANCH-FUNNEL: call i1 @__typeid_typeid2_8_branch_funnel(ptr nest %vtable, ptr %obj, i32 %arg1)
+  %result = call i1 %fptr(ptr %obj, i32 %arg1)
   ret i1 %result
 
 trap:

llvm/test/Transforms/WholeProgramDevirt/uniform-retval-invoke.ll

@@ -15,7 +15,7 @@ define i32 @vf2(ptr %this) readnone {
 }
 
 ; CHECK: define i32 @call
-define i32 @call(ptr %obj) personality ptr undef {
+define i32 @call(ptr %obj) personality ptr @__gxx_personality_v0 {
   %vtable = load ptr, ptr %obj
   %p = call i1 @llvm.type.test(ptr %vtable, metadata !"typeid")
   call void @llvm.assume(i1 %p)
@@ -35,5 +35,6 @@ ret:
 
 declare i1 @llvm.type.test(ptr, metadata)
 declare void @llvm.assume(i1)
+declare i32 @__gxx_personality_v0(...)
 
 !0 = !{i32 0, !"typeid"}