Methods and apparatus to perform automatic compiler optimization to enable streaming-store generation for unaligned contiguous write access

At least one non-transitory computer readable medium comprising computer readable instructions that, when executed, cause at least one processor to at least:

• mark a store instruction in source program code as a transformation candidate when the store instruction is associated with a group of memory accesses that are unaligned with respect to a size of a cache line in a cache;
• and
• transform the store instruction that is marked as the transformation candidate to form transformed program code when a non-temporal property is satisfied, the transformed program code to replace the store instruction with (i) a write to a buffer in the cache and (ii) a streaming-store instruction that is to write contents of the buffer to memory.

A method to compile source program code, the method comprising:

• marking, by executing an instruction with at least one processor, a store instruction in the source program code as a transformation candidate when the store instruction is associated with a group of memory accesses that are unaligned with respect to a size of a cache line in a cache;
• and
• transforming, by executing an instruction with at least one processor, the store instruction that is marked as the transformation candidate to form transformed program code when a non-temporal property is satisfied, the transformed program code to replace the store instruction with (i) a write to a buffer in the cache and (ii) a streaming-store instruction that is to write contents of the buffer to memory.

A system to compile source program code, the system comprising:

• means for marking a store instruction in the source program code as a transformation candidate when the store instruction is associated with a group of memory accesses that are unaligned with respect to a size of a cache line in a cache;
• and
• means for transforming the store instruction that is marked as the transformation candidate to form transformed program code when a non-temporal property is satisfied, the transformed program code to replace the store instruction with (i) a write to a buffer in the cache and (ii) a streaming-store instruction that is to write contents of the buffer to memory.