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
diff --git a/lib/Analysis/ScanfFormatString.cpp b/lib/Analysis/ScanfFormatString.cpp
index 38afd61..c1cdef8 100644
--- a/lib/Analysis/ScanfFormatString.cpp
+++ b/lib/Analysis/ScanfFormatString.cpp
@@ -218,7 +218,9 @@
return ScanfArgTypeResult();
case LengthModifier::AsPtrDiff:
return ScanfArgTypeResult(Ctx.getPointerDiffType(), "ptrdiff_t *");
- case LengthModifier::AsLongDouble: return ScanfArgTypeResult::Invalid();
+ case LengthModifier::AsLongDouble:
+ // GNU extension.
+ return ArgTypeResult(Ctx.LongLongTy);
case LengthModifier::AsAllocate: return ScanfArgTypeResult::Invalid();
case LengthModifier::AsMAllocate: return ScanfArgTypeResult::Invalid();
}
@@ -242,7 +244,9 @@
case LengthModifier::AsPtrDiff:
// FIXME: Unsigned version of ptrdiff_t?
return ScanfArgTypeResult();
- case LengthModifier::AsLongDouble: return ScanfArgTypeResult::Invalid();
+ case LengthModifier::AsLongDouble:
+ // GNU extension.
+ return ArgTypeResult(Ctx.UnsignedLongLongTy);
case LengthModifier::AsAllocate: return ScanfArgTypeResult::Invalid();
case LengthModifier::AsMAllocate: return ScanfArgTypeResult::Invalid();
}