Teach scanf/printf checking about '%Ld' and friends (a GNU extension). Fixes PR 9466.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148859 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/Analysis/PrintfFormatString.cpp b/lib/Analysis/PrintfFormatString.cpp
index bc2b356934..dbe73c8f83 100644
--- a/lib/Analysis/PrintfFormatString.cpp
+++ b/lib/Analysis/PrintfFormatString.cpp
@@ -259,7 +259,8 @@ ArgTypeResult PrintfSpecifier::getArgType(ASTContext &Ctx) const {
   if (CS.isIntArg())
     switch (LM.getKind()) {
       case LengthModifier::AsLongDouble:
-        return ArgTypeResult::Invalid();
+        // GNU extension.
+        return Ctx.LongLongTy;
       case LengthModifier::None: return Ctx.IntTy;
       case LengthModifier::AsChar: return ArgTypeResult::AnyCharTy;
       case LengthModifier::AsShort: return Ctx.ShortTy;
@@ -280,7 +281,8 @@ ArgTypeResult PrintfSpecifier::getArgType(ASTContext &Ctx) const {
   if (CS.isUIntArg())
     switch (LM.getKind()) {
       case LengthModifier::AsLongDouble:
-        return ArgTypeResult::Invalid();
+        // GNU extension.
+        return Ctx.UnsignedLongLongTy;
       case LengthModifier::None: return Ctx.UnsignedIntTy;
       case LengthModifier::AsChar: return Ctx.UnsignedCharTy;
       case LengthModifier::AsShort: return Ctx.UnsignedShortTy;