From: Chris Lattner <sabre@nondot.org>
Date: Thu, 12 May 2005 18:52:34 +0000 (+0000)
Subject: Fix uint->fp casts on PPC, allowing UnitTests/2005-05-12-Int64ToFP to
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=383203b0036b8fdeef8119975fdbbd528b760adb;p=oota-llvm.git

Fix uint->fp casts on PPC, allowing UnitTests/2005-05-12-Int64ToFP to
work on it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21894 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 2921ef4ff1a..d62f507fb42 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -2148,10 +2148,9 @@ ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) {
     SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4);
     SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(),
                                       SignSet, Four, Zero);
-    // FIXME: This is almost certainly broken for big-endian systems.  Should
-    // this just put the fudge factor in the low bits of the uint64 constant or?
-    static Constant *FudgeFactor =
-      ConstantUInt::get(Type::ULongTy, 0x5f800000ULL << 32);
+    uint64_t FF = 0x5f800000ULL;
+    if (TLI.isLittleEndian()) FF <<= 32;
+    static Constant *FudgeFactor = ConstantUInt::get(Type::ULongTy, FF);
 
     MachineConstantPool *CP = DAG.getMachineFunction().getConstantPool();
     SDOperand CPIdx = DAG.getConstantPool(CP->getConstantPoolIndex(FudgeFactor),