Reapply r135075, but modify format-strings.c and format-strings-fixit.c test cases to be more portable with an explicit target triple.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135134 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/FormatString.cpp b/lib/Analysis/FormatString.cpp
index 5f3cd4c..74f1e92 100644
--- a/lib/Analysis/FormatString.cpp
+++ b/lib/Analysis/FormatString.cpp
@@ -206,6 +206,10 @@
 // Methods on ArgTypeResult.
 //===----------------------------------------------------------------------===//
 
+static bool hasSameSize(ASTContext &astContext, QualType typeA, QualType typeB) {
+  return astContext.getTypeSize(typeA) == astContext.getTypeSize(typeB);
+}
+
 bool ArgTypeResult::matchesType(ASTContext &C, QualType argTy) const {
   switch (K) {
     case InvalidTy:
@@ -226,26 +230,21 @@
             break;
           case BuiltinType::Char_S:
           case BuiltinType::SChar:
-            return T == C.UnsignedCharTy;
           case BuiltinType::Char_U:
           case BuiltinType::UChar:                    
-            return T == C.SignedCharTy;
+            return hasSameSize(C, T, C.UnsignedCharTy);            
           case BuiltinType::Short:
-            return T == C.UnsignedShortTy;
           case BuiltinType::UShort:
-            return T == C.ShortTy;
+            return hasSameSize(C, T, C.ShortTy);
           case BuiltinType::Int:
-            return T == C.UnsignedIntTy;
           case BuiltinType::UInt:
-            return T == C.IntTy;
+            return hasSameSize(C, T, C.IntTy);
           case BuiltinType::Long:
-            return T == C.UnsignedLongTy;
           case BuiltinType::ULong:
-            return T == C.LongTy;
+            return hasSameSize(C, T, C.LongTy);
           case BuiltinType::LongLong:
-            return T == C.UnsignedLongLongTy;
           case BuiltinType::ULongLong:
-            return T == C.LongLongTy;
+            return hasSameSize(C, T, C.LongLongTy);
         }
       return false;
     }