Represent the encoding of the SPR instructions as they actually are, so
that we can use the correct SPR numbers in the InstrInfo.td file.  This is
necessary to support VRsave.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24521 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCInstrInfo.td b/lib/Target/PowerPC/PPCInstrInfo.td
index 486de43..38f4ba8 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/lib/Target/PowerPC/PPCInstrInfo.td
@@ -560,15 +560,17 @@
 // Note that although LR should be listed as `8' and CTR as `9' in the SPR
 // field, the manual lists the groups of bits as [5-9] = 0, [0-4] = 8 or 9
 // which means the SPR value needs to be multiplied by a factor of 32.
-def MFCTR : XFXForm_1_ext<31, 339, 288, (ops GPRC:$rT), "mfctr $rT", SprMFSPR>;
-def MFLR  : XFXForm_1_ext<31, 339, 256, (ops GPRC:$rT), "mflr $rT", SprMFSPR>;
+def MFCTR : XFXForm_1_ext<31, 339, 9, (ops GPRC:$rT), "mfctr $rT", SprMFSPR>;
+def MFLR  : XFXForm_1_ext<31, 339, 8, (ops GPRC:$rT), "mflr $rT",  SprMFSPR>;
 def MFCR  : XFXForm_3<31, 19, (ops GPRC:$rT), "mfcr $rT", SprMFCR>;
 def MTCRF : XFXForm_5<31, 144, (ops crbitm:$FXM, GPRC:$rS),
                       "mtcrf $FXM, $rS", BrMCRX>;
-def MFOCRF : XFXForm_5a<31, 19, (ops GPRC:$rT, crbitm:$FXM),
-                        "mfcr $rT, $FXM", SprMFCR>;
-def MTCTR : XFXForm_7_ext<31, 467, 288, (ops GPRC:$rS), "mtctr $rS", SprMTSPR>;
-def MTLR  : XFXForm_7_ext<31, 467, 256, (ops GPRC:$rS), "mtlr $rS", SprMTSPR>;
+def MFOCRF: XFXForm_5a<31, 19, (ops GPRC:$rT, crbitm:$FXM),
+                       "mfcr $rT, $FXM", SprMFCR>;
+def MTCTR : XFXForm_7_ext<31, 467, 9, (ops GPRC:$rS), "mtctr $rS", SprMTSPR>;
+def MTLR  : XFXForm_7_ext<31, 467, 8, (ops GPRC:$rS), "mtlr $rS", SprMTSPR>;
+def MTSPR : XFXForm_7<31, 467, (ops GPRC:$rS, u16imm:$UIMM), "mtspr $UIMM, $rS",
+                      SprMTSPR>;
 
 // XS-Form instructions.  Just 'sradi'
 //