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add a helper method.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51274 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-05-19 21:17:01 +00:00
parent 0a2d74bd53
commit f7e1913118
1 changed files with 13 additions and 0 deletions
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13
include/llvm/Type.h
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@ -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