[llvm-commits] [llvm] r43005 - /llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp

[Chris Lattner]

Author: lattner
Date: Mon Oct 15 15:14:52 2007
New Revision: 43005

URL: http://llvm.org/viewvc/llvm-project?rev=43005&view=rev
Log:
Change LowerFP_TO_SINT to create the specific code it needs instead of 
unconditionally creating an i64 bitcast.  With the future legalizer
design, operation legalization can't introduce new nodes with illegal
types.

This fixes the rest of olden on ppc32.

Modified:
    llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp

Modified: llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp?rev=43005&r1=43004&r2=43005&view=diff

==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp Mon Oct 15 15:14:52 2007
@@ -2028,7 +2028,7 @@
                          DAG.getNode(ISD::FNEG, MVT::f64, LHS), TV, FV);
     }
       
-      SDOperand Cmp;
+  SDOperand Cmp;
   switch (CC) {
   default: break;       // SETUO etc aren't handled by fsel.
   case ISD::SETULT:
@@ -2081,10 +2081,17 @@
   }
   
   // Convert the FP value to an int value through memory.
-  SDOperand Bits = DAG.getNode(ISD::BIT_CONVERT, MVT::i64, Tmp);
+  SDOperand FIPtr = DAG.CreateStackTemporary(MVT::f64);
+  
+  // Emit a store to the stack slot.
+  SDOperand Chain = DAG.getStore(DAG.getEntryNode(), Tmp, FIPtr, NULL, 0);
+
+  // Result is a load from the stack slot.  If loading 4 bytes, make sure to
+  // add in a bias.
   if (Op.getValueType() == MVT::i32)
-    Bits = DAG.getNode(ISD::TRUNCATE, MVT::i32, Bits);
-  return Bits;
+    FIPtr = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr,
+                        DAG.getConstant(4, FIPtr.getValueType()));
+  return DAG.getLoad(Op.getValueType(), Chain, FIPtr, NULL, 0);
 }
 
 static SDOperand LowerFP_ROUND_INREG(SDOperand Op, SelectionDAG &DAG) {