[llvm] [WPD] Remove undef from tests (PR #170179)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 created https://github.com/llvm/llvm-project/pull/170179

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.

>From d85d49e4fd74f65695a043c3c0162c1575b9cf10 Mon Sep 17 00:00:00 2001
From: Aiden Grossman <aidengrossman at google.com>
Date: Mon, 1 Dec 2025 18:16:00 +0000
Subject: [PATCH] [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.
---
 llvm/test/Transforms/WholeProgramDevirt/calls-to-devirt.ll  | 4 ++--
 llvm/test/Transforms/WholeProgramDevirt/import-indir.ll     | 4 ++--
 llvm/test/Transforms/WholeProgramDevirt/import.ll           | 6 +++---
 .../Transforms/WholeProgramDevirt/uniform-retval-invoke.ll  | 3 ++-
 4 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/llvm/test/Transforms/WholeProgramDevirt/calls-to-devirt.ll b/llvm/test/Transforms/WholeProgramDevirt/calls-to-devirt.ll
index c6945662690c7..3af72a1efca36 100644
--- a/llvm/test/Transforms/WholeProgramDevirt/calls-to-devirt.ll
+++ b/llvm/test/Transforms/WholeProgramDevirt/calls-to-devirt.ll
@@ -41,7 +41,7 @@ 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
@@ -49,7 +49,7 @@ define i1 @call2(ptr %obj) #0 {
   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:
diff --git a/llvm/test/Transforms/WholeProgramDevirt/import-indir.ll b/llvm/test/Transforms/WholeProgramDevirt/import-indir.ll
index e4d6f1d52b540..2c33059b6e126 100644
--- a/llvm/test/Transforms/WholeProgramDevirt/import-indir.ll
+++ b/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:
diff --git a/llvm/test/Transforms/WholeProgramDevirt/import.ll b/llvm/test/Transforms/WholeProgramDevirt/import.ll
index 4e4df5f35a777..812ffbdf7f3fb 100644
--- a/llvm/test/Transforms/WholeProgramDevirt/import.ll
+++ b/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:
diff --git a/llvm/test/Transforms/WholeProgramDevirt/uniform-retval-invoke.ll b/llvm/test/Transforms/WholeProgramDevirt/uniform-retval-invoke.ll
index 88d539294777e..ca42368330fcf 100644
--- a/llvm/test/Transforms/WholeProgramDevirt/uniform-retval-invoke.ll
+++ b/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"}