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)))
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@52080 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index a89fbd6..78c3050 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -22,6 +22,16 @@
// 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) :
diff --git a/lib/AST/StmtDumper.cpp b/lib/AST/StmtDumper.cpp
index 082d2a2..ae6ca40 100644
--- a/lib/AST/StmtDumper.cpp
+++ b/lib/AST/StmtDumper.cpp
@@ -335,7 +335,7 @@
}
void StmtDumper::VisitFloatingLiteral(FloatingLiteral *Node) {
DumpExpr(Node);
- fprintf(F, " %f", Node->getValueAsDouble());
+ fprintf(F, " %f", Node->getValueAsApproximateDouble());
}
void StmtDumper::VisitStringLiteral(StringLiteral *Str) {
diff --git a/lib/AST/StmtPrinter.cpp b/lib/AST/StmtPrinter.cpp
index a740fac..5e34743 100644
--- a/lib/AST/StmtPrinter.cpp
+++ b/lib/AST/StmtPrinter.cpp
@@ -577,7 +577,7 @@
}
void StmtPrinter::VisitFloatingLiteral(FloatingLiteral *Node) {
// FIXME: print value more precisely.
- OS << Node->getValueAsDouble();
+ OS << Node->getValueAsApproximateDouble();
}
void StmtPrinter::VisitImaginaryLiteral(ImaginaryLiteral *Node) {