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Update documentation

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Jeffrey Walton 2019-11-16 00:46:36 -05:00
parent b50abd7554
commit 3427ca90b8
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6
ppc_simd.h
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@ -114,12 +114,18 @@
/// pointer for a byte array. The Power ABI says source arrays
/// are non-const, so this define removes the const. XLC++ will
/// fail the compile if the source array is const.
/// \details CONST_V8_CAST serves a second purpose. It casts to a
/// byte pointer to avoid undefined behavior due to alignment
/// requirements. Byte pointers have an alignment requirement of 1.
#define CONST_V8_CAST(x) ((unsigned char*)(x))
/// \brief Cast array to vector pointer
/// \details NCONST_V8_CAST casts an array to a vector
/// pointer for a byte array. The Power ABI says source arrays
/// are non-const, so this define removes the const. XLC++ will
/// fail the compile if the source array is const.
/// \details NCONST_V8_CAST serves a second purpose. It casts to a
/// byte pointer to avoid undefined behavior due to alignment
/// requirements. Byte pointers have an alignment requirement of 1.
#define NCONST_V8_CAST(x) ((unsigned char*)(x))
// VecLoad_ALTIVEC and VecStore_ALTIVEC are