diff options
Diffstat (limited to 'llvm/lib/Support/APFloat.cpp')
| -rw-r--r-- | llvm/lib/Support/APFloat.cpp | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/llvm/lib/Support/APFloat.cpp b/llvm/lib/Support/APFloat.cpp index e058010..a7b9f25 100644 --- a/llvm/lib/Support/APFloat.cpp +++ b/llvm/lib/Support/APFloat.cpp @@ -125,6 +125,9 @@ struct fltSemantics { /* Whether this semantics can represent signed values */ bool hasSignedRepr = true; + + /* Whether the sign bit of this semantics is the most significant bit */ + bool hasSignBitInMSB = true; }; static constexpr fltSemantics semIEEEhalf = {15, -14, 11, 16}; @@ -144,9 +147,15 @@ static constexpr fltSemantics semFloat8E4M3B11FNUZ = { 4, -10, 4, 8, fltNonfiniteBehavior::NanOnly, fltNanEncoding::NegativeZero}; static constexpr fltSemantics semFloat8E3M4 = {3, -2, 5, 8}; static constexpr fltSemantics semFloatTF32 = {127, -126, 11, 19}; -static constexpr fltSemantics semFloat8E8M0FNU = { - 127, -127, 1, 8, fltNonfiniteBehavior::NanOnly, fltNanEncoding::AllOnes, - false, false}; +static constexpr fltSemantics semFloat8E8M0FNU = {127, + -127, + 1, + 8, + fltNonfiniteBehavior::NanOnly, + fltNanEncoding::AllOnes, + false, + false, + false}; static constexpr fltSemantics semFloat6E3M2FN = { 4, -2, 3, 6, fltNonfiniteBehavior::FiniteOnly}; @@ -358,6 +367,10 @@ bool APFloatBase::isIEEELikeFP(const fltSemantics &semantics) { return SemanticsToEnum(semantics) <= S_IEEEquad; } +bool APFloatBase::hasSignBitInMSB(const fltSemantics &semantics) { + return semantics.hasSignBitInMSB; +} + bool APFloatBase::isRepresentableAsNormalIn(const fltSemantics &Src, const fltSemantics &Dst) { // Exponent range must be larger. |