Vector Data Load and Store Functions
Click an item in the table below for details about that function.
| vloadn |
Read vectors from a pointer to memory. |
| vstoren |
Write a vector to a pointer to memory. |
| vload_half |
Read a half float from a pointer to memory. |
| vload_halfn |
Read a half float vector from a pointer to memory. |
| vstore_half |
Convert float to half and write to a pointer to memory. |
| vstore_halfn |
Convert float vector to half vector and write to a pointer to memory. |
| vloada_halfn |
Read half float vector from a pointer to memory. |
| vstorea_halfn |
Convert float vector to half vector and write to a pointer to memory. |
Description
Vector Data Load and Store Functions allow you to read and write vector types from a pointer to memory.
The generic type gentype is used to indicate the built-in data types char, uchar, short, ushort, int, uint, long, ulong, or float.
The generic type name gentypen is used to indicate the built-in data types char{2|4|8|16},
uchar{2|4|8|16}, short{2|4|8|16}, ushort{2|4|8|16},
int{2|4|8|16}, uint{2|4|8|16}, long{2|4|8|16}, ulong{2|4|8|16}, or float{2|4|8|16} as the type for the arguments unless otherwise stated. The suffix used in gentypen or the function name (i.e. vloadn, vstoren, etc.) represents the number of elements in the built-in vector type (n = 2, 4, 8, or 16).
The results of vector data load and store functions are undefined if the address being read from
or written to is not correctly aligned. The pointer argument p can be a
pointer to __global, __local, or __private memory for store functions. The
pointer argument p can be a pointer to __global, __local, __constant or __private memory for load functions.
Certain built-in vector data load and store functions are extended with cl_khr_fp64 to include appropriate versions of functions that take double, and double{2|4|8|16} as arguments and return values. They are also extended with with cl_khr_fp16 to include appropriate versions of functions that take half, and half{2|4|8|16} as arguments and return values.
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