From 110eaaceddcec790f7e6a5e3bf1261c9aa1e73ab Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Mon, 2 May 2011 19:39:53 +0000
Subject: Vendor import of clang trunk r130700:
 http://llvm.org/svn/llvm-project/cfe/trunk@130700

---
 lib/Analysis/PrintfFormatString.cpp | 43 ++++++++++++++++++++++++++-----------
 1 file changed, 30 insertions(+), 13 deletions(-)

(limited to 'lib/Analysis/PrintfFormatString.cpp')

diff --git a/lib/Analysis/PrintfFormatString.cpp b/lib/Analysis/PrintfFormatString.cpp
index db9f7f2..00b0b27 100644
--- a/lib/Analysis/PrintfFormatString.cpp
+++ b/lib/Analysis/PrintfFormatString.cpp
@@ -381,8 +381,32 @@ bool PrintfSpecifier::fixType(QualType QT) {
 
   // Set length modifier
   switch (BT->getKind()) {
-  default:
-    // The rest of the conversions are either optional or for non-builtin types
+  case BuiltinType::Bool:
+  case BuiltinType::WChar_U:
+  case BuiltinType::WChar_S:
+  case BuiltinType::Char16:
+  case BuiltinType::Char32:
+  case BuiltinType::UInt128:
+  case BuiltinType::Int128:
+    // Integral types which are non-trivial to correct.
+    return false;
+
+  case BuiltinType::Void:
+  case BuiltinType::NullPtr:
+  case BuiltinType::ObjCId:
+  case BuiltinType::ObjCClass:
+  case BuiltinType::ObjCSel:
+  case BuiltinType::Dependent:
+  case BuiltinType::Overload:
+  case BuiltinType::BoundMember:
+  case BuiltinType::UnknownAny:
+    // Misc other stuff which doesn't make sense here.
+    return false;
+
+  case BuiltinType::UInt:
+  case BuiltinType::Int:
+  case BuiltinType::Float:
+  case BuiltinType::Double:
     LM.setKind(LengthModifier::None);
     break;
 
@@ -398,8 +422,6 @@ bool PrintfSpecifier::fixType(QualType QT) {
     LM.setKind(LengthModifier::AsShort);
     break;
 
-  case BuiltinType::WChar_S:
-  case BuiltinType::WChar_U:
   case BuiltinType::Long:
   case BuiltinType::ULong:
     LM.setKind(LengthModifier::AsLong);
@@ -429,24 +451,19 @@ bool PrintfSpecifier::fixType(QualType QT) {
   else if (QT->isRealFloatingType()) {
     CS.setKind(ConversionSpecifier::fArg);
   }
-  else if (QT->isPointerType()) {
-    CS.setKind(ConversionSpecifier::pArg);
-    Precision.setHowSpecified(OptionalAmount::NotSpecified);
-    HasAlternativeForm = 0;
-    HasLeadingZeroes = 0;
-    HasPlusPrefix = 0;
-  }
   else if (QT->isSignedIntegerType()) {
     CS.setKind(ConversionSpecifier::dArg);
     HasAlternativeForm = 0;
   }
   else if (QT->isUnsignedIntegerType()) {
-    CS.setKind(ConversionSpecifier::uArg);
+    // Preserve the original formatting, e.g. 'X', 'o'.
+    if (!cast<PrintfConversionSpecifier>(CS).isUIntArg())
+      CS.setKind(ConversionSpecifier::uArg);
     HasAlternativeForm = 0;
     HasPlusPrefix = 0;
   }
   else {
-    return false;
+    assert(0 && "Unexpected type");
   }
 
   return true;
-- 
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