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| -rw-r--r-- | include/llvm/Type.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/llvm/Type.h b/include/llvm/Type.h index 48ed04027b..d2e94a43c5 100644 --- a/include/llvm/Type.h +++ b/include/llvm/Type.h @@ -242,6 +242,19 @@ public: /// primitive type. /// unsigned getPrimitiveSizeInBits() const; + + /// getFPMantissaWidth - Return the width of the mantissa of this type. This + /// is only valid on scalar floating point types. If the FP type does not + /// have a stable mantissa (e.g. ppc long double), this method returns -1. + int getFPMantissaWidth() const { + assert(isFloatingPoint() && "Not a floating point type!"); + if (ID == FloatTyID) return 24; + if (ID == DoubleTyID) return 53; + if (ID == X86_FP80TyID) return 64; + if (ID == FP128TyID) return 113; + assert(ID == PPC_FP128TyID && "unknown fp type"); + return -1; + } /// getForwardedType - Return the type that this type has been resolved to if /// it has been resolved to anything. This is used to implement the |