Revert previous change to IR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41769 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index ab3d983..73f5338 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -526,10 +526,9 @@
     } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(C)) {
       Code = bitc::CST_CODE_FLOAT;
       const Type *Ty = CFP->getType();
-      if (Ty == Type::FloatTy) {
-        Record.push_back(DoubleToBits((double)CFP->getValueAPF().
-                          convertToFloat()));
-      } else if (Ty == Type::DoubleTy) {
+      if (Ty == Type::FloatTy)
+        Record.push_back(FloatToBits(CFP->getValueAPF().convertToFloat()));
+      else if (Ty == Type::DoubleTy) {
         Record.push_back(DoubleToBits(CFP->getValueAPF().convertToDouble()));
       // FIXME: make long double constants work.
       } else if (Ty == Type::X86_FP80Ty ||