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va_start, va_end, va_copy: InstrinsicInst subclasses and InstVisitor support.
[oota-llvm.git]
/
include
/
llvm
/
Support
/
MathExtras.h
diff --git
a/include/llvm/Support/MathExtras.h
b/include/llvm/Support/MathExtras.h
index 4005161320d66b103adc349770437698eddd7ea5..11f9e63c9bbcafa849f49177c20d9ecafc4d01d7 100644
(file)
--- a/
include/llvm/Support/MathExtras.h
+++ b/
include/llvm/Support/MathExtras.h
@@
-431,21
+431,22
@@
inline uint64_t NextPowerOf2(uint64_t A) {
return A + 1;
}
return A + 1;
}
-/// RoundUpToAlignment - Returns the next integer (mod 2**64) that is
-/// greater than or equal to \arg Value and is a multiple of \arg
-/// Align. Align must be non-zero.
+/// Returns the next integer (mod 2**64) that is greater than or equal to
+/// \p Value and is a multiple of \p Align. \p Align must be non-zero.
///
/// Examples:
///
/// Examples:
-/// RoundUpToAlignment(5, 8) = 8
-/// RoundUpToAlignment(17, 8) = 24
-/// RoundUpToAlignment(~0LL, 8) = 0
+/// \code
+/// RoundUpToAlignment(5, 8) = 8
+/// RoundUpToAlignment(17, 8) = 24
+/// RoundUpToAlignment(~0LL, 8) = 0
+/// \endcode
inline uint64_t RoundUpToAlignment(uint64_t Value, uint64_t Align) {
return ((Value + Align - 1) / Align) * Align;
}
inline uint64_t RoundUpToAlignment(uint64_t Value, uint64_t Align) {
return ((Value + Align - 1) / Align) * Align;
}
-///
OffsetToAlignment - Return the offset to the next integer (mod 2**64) that
-///
is greater than or equal to \arg Value and is a multiple of \arg
-///
Align. Align must be
non-zero.
+///
Returns the offset to the next integer (mod 2**64) that is greater than
+///
or equal to \p Value and is a multiple of \p Align. \p Align must be
+/// non-zero.
inline uint64_t OffsetToAlignment(uint64_t Value, uint64_t Align) {
return RoundUpToAlignment(Value, Align) - Value;
}
inline uint64_t OffsetToAlignment(uint64_t Value, uint64_t Align) {
return RoundUpToAlignment(Value, Align) - Value;
}
@@
-463,12
+464,24
@@
template <unsigned B> inline int32_t SignExtend32(uint32_t x) {
return int32_t(x << (32 - B)) >> (32 - B);
}
return int32_t(x << (32 - B)) >> (32 - B);
}
+/// \brief Sign extend number in the bottom B bits of X to a 32-bit int.
+/// Requires 0 < B <= 32.
+inline int32_t SignExtend32(uint32_t X, unsigned B) {
+ return int32_t(X << (32 - B)) >> (32 - B);
+}
+
/// SignExtend64 - Sign extend B-bit number x to 64-bit int.
/// Usage int64_t r = SignExtend64<5>(x);
template <unsigned B> inline int64_t SignExtend64(uint64_t x) {
return int64_t(x << (64 - B)) >> (64 - B);
}
/// SignExtend64 - Sign extend B-bit number x to 64-bit int.
/// Usage int64_t r = SignExtend64<5>(x);
template <unsigned B> inline int64_t SignExtend64(uint64_t x) {
return int64_t(x << (64 - B)) >> (64 - B);
}
+/// \brief Sign extend number in the bottom B bits of X to a 64-bit int.
+/// Requires 0 < B <= 64.
+inline int64_t SignExtend64(uint64_t X, unsigned B) {
+ return int64_t(X << (64 - B)) >> (64 - B);
+}
+
} // End llvm namespace
#endif
} // End llvm namespace
#endif