Fix typo in alias: DSIR -> DSISR

llvm-svn: 214238
diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.td b/llvm/lib/Target/PowerPC/PPCInstrInfo.td
index dbaf8f3..5b8cb5c 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.td
@@ -3131,8 +3131,8 @@
 def : InstAlias<"mtdscr $Rx", (MTSPR 17, gprc:$Rx)>;
 def : InstAlias<"mfdscr $Rx", (MFSPR gprc:$Rx, 17)>;
 
-def : InstAlias<"mtdsir $Rx", (MTSPR 18, gprc:$Rx)>;
-def : InstAlias<"mfdsir $Rx", (MFSPR gprc:$Rx, 18)>;
+def : InstAlias<"mtdsisr $Rx", (MTSPR 18, gprc:$Rx)>;
+def : InstAlias<"mfdsisr $Rx", (MFSPR gprc:$Rx, 18)>;
 
 def : InstAlias<"mtdar $Rx", (MTSPR 19, gprc:$Rx)>;
 def : InstAlias<"mfdar $Rx", (MFSPR gprc:$Rx, 19)>;
diff --git a/llvm/test/MC/PowerPC/ppc64-encoding-ext.s b/llvm/test/MC/PowerPC/ppc64-encoding-ext.s
index 4dad8a8..b555f77 100644
--- a/llvm/test/MC/PowerPC/ppc64-encoding-ext.s
+++ b/llvm/test/MC/PowerPC/ppc64-encoding-ext.s
@@ -3427,10 +3427,10 @@
             mfdscr 2
 # CHECK-BE: mtspr 18, 2                     # encoding: [0x7c,0x52,0x03,0xa6]
 # CHECK-LE: mtspr 18, 2                     # encoding: [0xa6,0x03,0x52,0x7c]
-            mtdsir 2
+            mtdsisr 2
 # CHECK-BE: mfspr 2, 18                     # encoding: [0x7c,0x52,0x02,0xa6]
 # CHECK-LE: mfspr 2, 18                     # encoding: [0xa6,0x02,0x52,0x7c]
-            mfdsir 2
+            mfdsisr 2
 # CHECK-BE: mtspr 19, 2                     # encoding: [0x7c,0x53,0x03,0xa6]
 # CHECK-LE: mtspr 19, 2                     # encoding: [0xa6,0x03,0x53,0x7c]
             mtdar 2