Expand 32-bit bitconverts via memory

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76050 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/SystemZ/SystemZISelLowering.cpp b/lib/Target/SystemZ/SystemZISelLowering.cpp
index 162f960..239a179 100644
--- a/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -130,8 +130,8 @@
   setOperationAction(ISD::FCOS,             MVT::f64, Expand);
 
   // We have only 64-bit bitconverts
-  setOperationAction(ISD::BIT_CONVERT,      MVT::f32, Promote);
-  setOperationAction(ISD::BIT_CONVERT,      MVT::i32, Promote);
+  setOperationAction(ISD::BIT_CONVERT,      MVT::f32, Expand);
+  setOperationAction(ISD::BIT_CONVERT,      MVT::i32, Expand);
 
   setOperationAction(ISD::UINT_TO_FP,       MVT::i32, Expand);
   setOperationAction(ISD::UINT_TO_FP,       MVT::i64, Expand);