Mojo module

intrinsics

Defines intrinsics.

You can import these APIs from the sys package. For example:

from sys import PrefetchLocality

Structs

PrefetchCache: Prefetch cache type.
PrefetchLocality: The prefetch locality.
PrefetchOptions: Collection of configuration parameters for a prefetch intrinsic call.
PrefetchRW: Prefetch read or write.

Functions

assume: Signals to the optimizer that the condition is always true. This allows the optimizer to optimize the code.
ballot: Returns a bitfield(Int32 or Int64) containing the result of its Bool argument in all active lanes, and zero in all inactive lanes. For example, ballot(True) returns EXEC mask.
compressed_store: Compresses the lanes of value, skipping mask lanes, and stores at addr.
expect: Provides information about expected (the most probable) value of val, which can be used by optimizers.
gather: Reads scalar values from a SIMD vector, and gathers them into one vector.
implicitarg_ptr: Get a pointer to AMD's implicit arguments table.
likely: Provides information that the most probable value of val is going to be True. This information can be used by optimizers.
llvm_intrinsic: Calls an LLVM intrinsic with the name intrin and return type type.
masked_load: Loads data from memory and return it, replacing masked lanes with values from the passthrough vector.
masked_store: Stores a value at a memory location, skipping masked lanes.
prefetch: Prefetches an instruction or data into cache before it is used.
readfirstlane: Get the value in the lowest active lane of the input operand.
scatter: Takes scalar values from a SIMD vector and scatters them into a vector of pointers.
sendmsg: Send a message to fixed function hardware. Refer to the specific ISA manual for the ops and messages.
strided_load: Loads values from addr according to a specific stride.
strided_store: Loads values from addr according to a specific stride.
unlikely: Provides information that the most probable value of val is going to be False. This information can be used by optimizers.

Structs​

Functions​

Structs

Functions