From 394cd13ba3249d6aa8f8a21603e377b923fe4675 Mon Sep 17 00:00:00 2001
From: Nate Begeman <natebegeman@mac.com>
Date: Mon, 8 Aug 2005 20:04:52 +0000
Subject: [PATCH] Fix JIT encoding of ppc mfocrf instruction; the operands were
 reversed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22707 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/PowerPC/PPCInstrFormats.td | 20 +++++++++++++++++---
 lib/Target/PowerPC/PPCInstrInfo.td    |  6 +++---
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/lib/Target/PowerPC/PPCInstrFormats.td b/lib/Target/PowerPC/PPCInstrFormats.td
index ca4f612be5f..a52bda249ad 100644
--- a/lib/Target/PowerPC/PPCInstrFormats.td
+++ b/lib/Target/PowerPC/PPCInstrFormats.td
@@ -378,19 +378,33 @@ class XFXForm_3<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
   let Inst{31}    = 0;
 }
 
-class XFXForm_5<bits<6> opcode, bit mfcrf, bits<10> xo, 
-                dag OL, string asmstr> : I<opcode, OL, asmstr> {
+class XFXForm_5<bits<6> opcode, bits<10> xo, dag OL, string asmstr> 
+  : I<opcode, OL, asmstr> {
   bits<8>  FXM;
   bits<5>  ST;
    
   let Inst{6-10}  = ST;
-  let Inst{11}    = mfcrf;
+  let Inst{11}    = 0;
   let Inst{12-19} = FXM;
   let Inst{20}    = 0;
   let Inst{21-30} = xo;
   let Inst{31}    = 0;
 }
 
+class XFXForm_5a<bits<6> opcode, bits<10> xo, dag OL, string asmstr> 
+  : I<opcode, OL, asmstr> {
+  bits<5>  ST;
+  bits<8>  FXM;
+   
+  let Inst{6-10}  = ST;
+  let Inst{11}    = 1;
+  let Inst{12-19} = FXM;
+  let Inst{20}    = 0;
+  let Inst{21-30} = xo;
+  let Inst{31}    = 0;
+}
+
+
 class XFXForm_7<bits<6> opcode, bits<10> xo, dag OL, string asmstr>
   : XFXForm_1<opcode, xo, OL, asmstr>;
 
diff --git a/lib/Target/PowerPC/PPCInstrInfo.td b/lib/Target/PowerPC/PPCInstrInfo.td
index 1e7c7a57fb1..41e84ac5b58 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/lib/Target/PowerPC/PPCInstrInfo.td
@@ -364,10 +364,10 @@ def MCRF   : XLForm_3<19, 0, (ops CRRC:$BF, CRRC:$BFA),
 def MFCTR : XFXForm_1_ext<31, 339, 288, (ops GPRC:$rT), "mfctr $rT">;
 def MFLR  : XFXForm_1_ext<31, 339, 256, (ops GPRC:$rT), "mflr $rT">;
 def MFCR  : XFXForm_3<31, 19, (ops GPRC:$rT), "mfcr $rT">;
-def MTCRF : XFXForm_5<31, 0, 144, (ops CRRC:$FXM, GPRC:$rS),
+def MTCRF : XFXForm_5<31, 144, (ops CRRC:$FXM, GPRC:$rS),
                       "mtcrf $FXM, $rS">;
-def MFOCRF : XFXForm_5<31, 1, 19, (ops GPRC:$rT, crbitm:$FXM),
-                      "mfcr $rT, $FXM">;
+def MFOCRF : XFXForm_5a<31, 19, (ops GPRC:$rT, crbitm:$FXM),
+                        "mfcr $rT, $FXM">;
 def MTCTR : XFXForm_7_ext<31, 467, 288, (ops GPRC:$rS), "mtctr $rS">;
 def MTLR  : XFXForm_7_ext<31, 467, 256, (ops GPRC:$rS), "mtlr $rS">;