Squelch a warning about mismatch between sign of constant and sign of return
type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35674 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCFrameInfo.h b/lib/Target/PowerPC/PPCFrameInfo.h
index 535e823..81365e9 100644
--- a/lib/Target/PowerPC/PPCFrameInfo.h
+++ b/lib/Target/PowerPC/PPCFrameInfo.h
@@ -48,7 +48,7 @@
     
     // For ELF 32 ABI:
     // Save it right before the link register
-    return -4;
+    return -4U;
   }
   
   /// getLinkageSize - Return the size of the PowerPC ABI linkage area.