diff --git a/lld/test/MachO/lto-mattrs.ll b/lld/test/MachO/lto-mattrs.ll
index fad0b5e3bc61df..4852e24c962770 100644
--- a/lld/test/MachO/lto-mattrs.ll
+++ b/lld/test/MachO/lto-mattrs.ll
@@ -11,7 +11,8 @@
 
 ; FMA:      <_foo>:
 ; FMA-NEXT: vrcpss       %xmm0, %xmm0, %xmm1
-; FMA-NEXT: vfmsub213ss  [[#]](%rip), %xmm1, %xmm0
+; FMA-NEXT: vfmsub213ss  [[#]](%rip), %xmm1, %xmm0 ## xmm0 = (xmm1 * xmm0) - mem
+; FMA-NEXT:                                        ## 0x2f4
 ; FMA-NEXT: vfnmadd132ss %xmm1, %xmm1, %xmm0
 ; FMA-NEXT: retq