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author | rdivacky <rdivacky@FreeBSD.org> | 2009-10-14 17:57:32 +0000 |
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committer | rdivacky <rdivacky@FreeBSD.org> | 2009-10-14 17:57:32 +0000 |
commit | cd749a9c07f1de2fb8affde90537efa4bc3e7c54 (patch) | |
tree | b21f6de4e08b89bb7931806bab798fc2a5e3a686 /include/llvm/Support/MathExtras.h | |
parent | 72621d11de5b873f1695f391eb95f0b336c3d2d4 (diff) | |
download | FreeBSD-src-cd749a9c07f1de2fb8affde90537efa4bc3e7c54.zip FreeBSD-src-cd749a9c07f1de2fb8affde90537efa4bc3e7c54.tar.gz |
Update llvm to r84119.
Diffstat (limited to 'include/llvm/Support/MathExtras.h')
-rw-r--r-- | include/llvm/Support/MathExtras.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/include/llvm/Support/MathExtras.h b/include/llvm/Support/MathExtras.h index 85e19ac..6fa618e 100644 --- a/include/llvm/Support/MathExtras.h +++ b/include/llvm/Support/MathExtras.h @@ -52,6 +52,16 @@ inline bool isUInt32(int64_t Value) { return static_cast<uint32_t>(Value) == Value; } +template<unsigned N> +inline bool isInt(int64_t x) { + return N >= 64 || (-(INT64_C(1)<<(N-1)) <= x && x < (INT64_C(1)<<(N-1))); +} + +template<unsigned N> +inline bool isUint(uint64_t x) { + return N >= 64 || x < (UINT64_C(1)<<N); +} + /// isMask_32 - This function returns true if the argument is a sequence of ones /// starting at the least significant bit with the remainder zero (32 bit /// version). Ex. isMask_32(0x0000FFFFU) == true. @@ -108,7 +118,7 @@ inline uint16_t ByteSwap_16(uint16_t Value) { /// ByteSwap_32 - This function returns a byte-swapped representation of the /// 32-bit argument, Value. inline uint32_t ByteSwap_32(uint32_t Value) { -#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) +#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && !defined(__ICC) return __builtin_bswap32(Value); #elif defined(_MSC_VER) && !defined(_DEBUG) return _byteswap_ulong(Value); @@ -124,7 +134,7 @@ inline uint32_t ByteSwap_32(uint32_t Value) { /// ByteSwap_64 - This function returns a byte-swapped representation of the /// 64-bit argument, Value. inline uint64_t ByteSwap_64(uint64_t Value) { -#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) +#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && !defined(__ICC) return __builtin_bswap64(Value); #elif defined(_MSC_VER) && !defined(_DEBUG) return _byteswap_uint64(Value); @@ -425,6 +435,13 @@ 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. +inline uint64_t OffsetToAlignment(uint64_t Value, uint64_t Align) { + return RoundUpToAlignment(Value, Align) - Value; +} + /// abs64 - absolute value of a 64-bit int. Not all environments support /// "abs" on whatever their name for the 64-bit int type is. The absolute /// value of the largest negative number is undefined, as with "abs". |