Fix ast dumping to work with long double literals, e.g. we dump:

long double X() { return 1.0L; }

as:

long double X()
(CompoundStmt 0xb06a00 <t.c:2:17, col:32>
  (ReturnStmt 0xb068d0 <col:19, col:26>
    (FloatingLiteral 0xb02cf0 <col:26> 'long double' 1.000000)))

llvm-svn: 52080

1 files changed, 10 insertions, 0 deletions

diff --git a/clang/lib/AST/Expr.cpp b/clang/lib/AST/Expr.cpp
index a89fbd621a5..78c305051ee 100644
--- a/clang/lib/AST/Expr.cpp
+++ b/clang/lib/AST/Expr.cpp
@@ -22,6 +22,16 @@ using namespace clang;
 // Primary Expressions.
 //===----------------------------------------------------------------------===//
 
+/// getValueAsApproximateDouble - This returns the value as an inaccurate
+/// double.  Note that this may cause loss of precision, but is useful for
+/// debugging dumps, etc.
+double FloatingLiteral::getValueAsApproximateDouble() const {
+  llvm::APFloat V = getValue();
+  V.convert(llvm::APFloat::IEEEdouble, llvm::APFloat::rmNearestTiesToEven);
+  return V.convertToDouble();
+}
+
+
 StringLiteral::StringLiteral(const char *strData, unsigned byteLength, 
                              bool Wide, QualType t, SourceLocation firstLoc,
                              SourceLocation lastLoc) :