Loosely-coupled slice target file data

A method comprising:

• determining that two instructions may be combined based on a processing power of the processor and a size of the instructions;
• fusing the two instructions into a pair;
• mapping the two instructions with a single register tag;
• writing the register tag into a mapper with bits indicating that the register tag is for a first instruction of the two instructions;
• writing the register tag into the mapper with bits indicating that the register tag is for a second instruction of the two instructions;
• writing the fused instruction pair into an issue queue;
• issuing the fused instruction pair to a vector-scalar transformation units (VSU);
• and
• executing the two instructions.

A computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processors to perform a method, the method comprising:

• determining that two instructions may be combined based on a processing power of the processor and a size of the instructions;
• fusing the two instructions into a pair;
• mapping the two instructions with a single register tag;
• writing the register tag into a mapper with bits indicating that the register tag is for a first instruction of the two instructions;
• writing the register tag into the mapper with bits indicating that the register tag is for a second instruction of the two instructions;
• writing the fused instruction pair into an issue queue;
• issuing the fused instruction pair to a vector-scalar transformation units (VSU);
• and
• executing the two instructions.