diff --git a/lib/Target/PowerPC/PPCSchedule440.td b/lib/Target/PowerPC/PPCSchedule440.td
index 9921fc8b952..419faea3022 100644
--- a/lib/Target/PowerPC/PPCSchedule440.td
+++ b/lib/Target/PowerPC/PPCSchedule440.td
@@ -373,6 +373,26 @@ def PPC440Itineraries : ProcessorItineraries<
                                InstrStage<1, [LWB]>],
                               [8, 5],
                               [NoBypass, GPR_Bypass]>,
+  InstrItinData<LdStSTD     , [InstrStage<1, [IFTH1, IFTH2]>,
+                               InstrStage<1, [PDCD1, PDCD2]>,
+                               InstrStage<1, [DISS1, DISS2]>,
+                               InstrStage<1, [LRACC]>,
+                               InstrStage<1, [AGEN]>,
+                               InstrStage<1, [CRD]>,
+                               InstrStage<2, [LWB]>],
+                              [8, 5],
+                              [NoBypass, GPR_Bypass]>,
+  InstrItinData<LdStSTDCX   , [InstrStage<1, [IFTH1, IFTH2]>,
+                               InstrStage<1, [PDCD1, PDCD2]>,
+                               InstrStage<1, [DISS1]>,
+                               InstrStage<1, [IRACC], 0>,
+                               InstrStage<4, [LWARX_Hold], 0>,
+                               InstrStage<1, [LRACC]>,
+                               InstrStage<1, [AGEN]>,
+                               InstrStage<1, [CRD]>,
+                               InstrStage<1, [LWB]>],
+                              [8, 5],
+                              [NoBypass, GPR_Bypass]>,
   InstrItinData<LdStSTWCX   , [InstrStage<1, [IFTH1, IFTH2]>,
                                InstrStage<1, [PDCD1, PDCD2]>,
                                InstrStage<1, [DISS1]>,