use llvm:Attributes instead of unsigned

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148554 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index 72b40d3..1de8f0e 100644
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -733,8 +733,8 @@
                                            const Decl *TargetDecl,
                                            AttributeListType &PAL,
                                            unsigned &CallingConv) {
-  unsigned FuncAttrs = 0;
-  unsigned RetAttrs = 0;
+  llvm::Attributes FuncAttrs;
+  llvm::Attributes RetAttrs;
 
   CallingConv = FI.getEffectiveCallingConvention();
 
@@ -820,7 +820,7 @@
          ie = FI.arg_end(); it != ie; ++it) {
     QualType ParamType = it->type;
     const ABIArgInfo &AI = it->info;
-    unsigned Attributes = 0;
+    llvm::Attributes Attrs;
 
     // 'restrict' -> 'noalias' is done in EmitFunctionProlog when we
     // have the corresponding parameter variable.  It doesn't make
@@ -828,9 +828,9 @@
     switch (AI.getKind()) {
     case ABIArgInfo::Extend:
       if (ParamType->isSignedIntegerOrEnumerationType())
-        Attributes |= llvm::Attribute::SExt;
+        Attrs |= llvm::Attribute::SExt;
       else if (ParamType->isUnsignedIntegerOrEnumerationType())
-        Attributes |= llvm::Attribute::ZExt;
+        Attrs |= llvm::Attribute::ZExt;
       // FALL THROUGH
     case ABIArgInfo::Direct:
       if (RegParm > 0 &&
@@ -839,7 +839,7 @@
         RegParm -=
         (Context.getTypeSize(ParamType) + PointerWidth - 1) / PointerWidth;
         if (RegParm >= 0)
-          Attributes |= llvm::Attribute::InReg;
+          Attrs |= llvm::Attribute::InReg;
       }
       // FIXME: handle sseregparm someday...
 
@@ -853,9 +853,9 @@
 
     case ABIArgInfo::Indirect:
       if (AI.getIndirectByVal())
-        Attributes |= llvm::Attribute::ByVal;
+        Attrs |= llvm::Attribute::ByVal;
 
-      Attributes |=
+      Attrs |=
         llvm::Attribute::constructAlignmentFromInt(AI.getIndirectAlign());
       // byval disables readnone and readonly.
       FuncAttrs &= ~(llvm::Attribute::ReadOnly |
@@ -877,8 +877,8 @@
     }
     }
 
-    if (Attributes)
-      PAL.push_back(llvm::AttributeWithIndex::get(Index, Attributes));
+    if (Attrs)
+      PAL.push_back(llvm::AttributeWithIndex::get(Index, Attrs));
     ++Index;
   }
   if (FuncAttrs)