diff --git a/llvm/test/Transforms/InstCombine/pr98435.ll b/llvm/test/Transforms/InstCombine/pr98435.ll
new file mode 100644
index 00000000000000..97ac4b987f4fc0
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/pr98435.ll
@@ -0,0 +1,11 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
+; RUN: opt -S -passes=instcombine < %s 2>&1 | FileCheck %s
+
+define <2 x i1> @pr98435(<2 x i1> %val) {
+; CHECK-LABEL: define <2 x i1> @pr98435(
+; CHECK-SAME: <2 x i1> [[VAL:%.*]]) {
+; CHECK-NEXT:    ret <2 x i1> <i1 poison, i1 true>
+;
+  %val1 = select <2 x i1> <i1 undef, i1 true>, <2 x i1> <i1 true, i1 true>, <2 x i1> %val
+  ret <2 x i1> %val1
+}