diff options
| -rw-r--r-- | llvm/lib/BinaryFormat/MsgPackWriter.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/llvm/lib/BinaryFormat/MsgPackWriter.cpp b/llvm/lib/BinaryFormat/MsgPackWriter.cpp index 32460d56238..d024bb0fcdb 100644 --- a/llvm/lib/BinaryFormat/MsgPackWriter.cpp +++ b/llvm/lib/BinaryFormat/MsgPackWriter.cpp @@ -88,10 +88,11 @@ void Writer::write(uint64_t u) { void Writer::write(double d) { // If no loss of precision, encode as a Float32. - float f = static_cast<float>(d); - if (static_cast<double>(f) == d) { + double a = std::fabs(d); + if (a >= std::numeric_limits<float>::min() && + a <= std::numeric_limits<float>::max()) { EW.write(FirstByte::Float32); - EW.write(f); + EW.write(static_cast<float>(d)); } else { EW.write(FirstByte::Float64); EW.write(d); |
