diff --git a/llvm/test/Transforms/InstSimplify/ConstProp/atan-intrinsic.ll b/llvm/test/Transforms/InstSimplify/ConstProp/atan-intrinsic.ll
index d824d6d35643d..c5c17d65524c2 100644
--- a/llvm/test/Transforms/InstSimplify/ConstProp/atan-intrinsic.ll
+++ b/llvm/test/Transforms/InstSimplify/ConstProp/atan-intrinsic.ll
@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
 ; RUN: opt -S -passes=instsimplify < %s | FileCheck %s
+; XFAIL: target={{.*}}-aix{{.*}}
 
 define double @test_atan_0() {
 ; CHECK-LABEL: define double @test_atan_0() {