From bbe1225bf408febe1c669616e3712e16ab299a35 Mon Sep 17 00:00:00 2001
From: Andrew Lenharth <andrewl@lenharth.org>
Date: Tue, 6 Dec 2005 23:27:39 +0000
Subject: [PATCH] fix divide and remainder

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24628 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Alpha/AlphaISelDAGToDAG.cpp | 24 +++++++++++-------------
 lib/Target/Alpha/AlphaInstrInfo.td     |  3 +++
 2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/lib/Target/Alpha/AlphaISelDAGToDAG.cpp b/lib/Target/Alpha/AlphaISelDAGToDAG.cpp
index 112671f668c..910c85eb561 100644
--- a/lib/Target/Alpha/AlphaISelDAGToDAG.cpp
+++ b/lib/Target/Alpha/AlphaISelDAGToDAG.cpp
@@ -339,19 +339,17 @@ SDOperand AlphaDAGToDAGISel::Select(SDOperand Op) {
       }
       SDOperand Tmp1 = Select(N->getOperand(0)),
         Tmp2 = Select(N->getOperand(1)),
-        Addr = CurDAG->getExternalSymbol(opstr, AlphaLowering.getPointerTy());
-      SDOperand Tmp3 = Select(Addr);
-      SDOperand Chain = CurDAG->getCopyToReg(CurDAG->getRoot(), Alpha::R24, 
-                                             Tmp1, SDOperand());
-      Chain = CurDAG->getCopyToReg(CurDAG->getRoot(), Alpha::R25, 
-                                   Tmp2, Chain.getValue(1));
-      Chain = CurDAG->getCopyToReg(CurDAG->getRoot(), Alpha::R27, 
-                                   Tmp3, Chain.getValue(1));
-      Chain = CurDAG->getTargetNode(Alpha::JSRs, MVT::i64, MVT::Flag,
-                                    CurDAG->getRegister(Alpha::R27, MVT::i64),
-                                    getI64Imm(0));
-      return CurDAG->getCopyFromReg(Chain.getValue(1), Alpha::R27, MVT::i64, 
-                                    Chain.getValue(1));
+        Addr = Select(CurDAG->getExternalSymbol(opstr, 
+						AlphaLowering.getPointerTy()));
+      SDOperand Chain;
+      Chain = CurDAG->getCopyToReg(CurDAG->getEntryNode(), Alpha::R24, Tmp1,
+				   SDOperand(0,0));
+      Chain = CurDAG->getCopyToReg(Chain, Alpha::R25, Tmp2, Chain.getValue(1));
+      Chain = CurDAG->getCopyToReg(Chain, Alpha::R27, Addr, Chain.getValue(1));
+      Chain = CurDAG->getTargetNode(Alpha::JSRsDAG, MVT::Other, MVT::Flag, 
+				    Chain, Chain.getValue(1));
+      return CurDAG->getCopyFromReg(Chain, Alpha::R27, MVT::i64, 
+				    Chain.getValue(1));
     }
     break;
 
diff --git a/lib/Target/Alpha/AlphaInstrInfo.td b/lib/Target/Alpha/AlphaInstrInfo.td
index 03ce44fed57..10dc6ea5d3c 100644
--- a/lib/Target/Alpha/AlphaInstrInfo.td
+++ b/lib/Target/Alpha/AlphaInstrInfo.td
@@ -429,6 +429,9 @@ let isCall = 1,
 let isCall = 1, Defs = [R24, R25, R27, R28], Uses = [R24, R25] in
   def JSRs : MbrForm< 0x1A, 0x01, (ops GPRC:$RD, GPRC:$RS, s14imm:$DISP), "jsr $RD,($RS),$DISP">; //Jump to div or rem
 
+let isCall = 1, Defs = [R23, R24, R25, R27, R28], Uses = [R24, R25, R27] in
+  def JSRsDAG : MbrForm< 0x1A, 0x01, (ops ), "jsr $$23,($$27),0">; //Jump to div or rem
+
 def JSR_COROUTINE : MbrForm< 0x1A, 0x03, (ops GPRC:$RD, GPRC:$RS, s14imm:$DISP), "jsr_coroutine $RD,($RS),$DISP">; //Jump to subroutine return
 def BR : BForm<0x30, "br $RA,$DISP">; //Branch