diff --git a/lib/Target/PowerPC/PPCInstrInfo.td b/lib/Target/PowerPC/PPCInstrInfo.td
index 1304958d311..f21320f5d8f 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/lib/Target/PowerPC/PPCInstrInfo.td
@@ -111,7 +111,9 @@ def LHAX : XForm_1<"lhax", 31, 343, 0, 0>;
 def LWZ : DForm_1<"lwz", 32, 0, 0>;
 def LWZX : XForm_1<"lwzx", 31, 23, 0, 0>;
 def LWA : DSForm_1<"lwa", 58, 2, 1, 0>;
+def LWAX : XForm_1<"lwax", 31, 341, 1, 0>;
 def LD : DSForm_2<"ld", 58, 0, 1, 0>;
+def LDX : XForm_1<"ldx", 31, 21, 1, 0>;
 def LMW : DForm_1<"lmw", 46, 0, 0>;
 def STMW : DForm_3<"stmw", 47, 0, 0>;
 def LFS : DForm_8<"lfs", 48, 0, 0>;