Redistribution of architected states for a processor register file

A computer program product for dynamic redistribution of register files, the computer program product comprising one or more computer readable storage media and program instructions stored on the one or more computer readable storage media, the program instructions including instructions to:

• determine if a redistribution of one or more register files is necessary;
• responsive to determining that the redistribution of the one or more register files is necessary, flush one or more register file transfers which have not yet completed;
• allocate one or more register file write locations based on a register free list, wherein one write location is allocated for each architected register of one or more architected registers to be redistributed;
• read a source data from each architected register of the one or more architected registers;
• and
• write the source data to the one or more write locations.

A computer system for dynamic redistribution of register files, the computer system comprising:

• one or more computer processors;
• one or more computer readable storage media;
• and
• program instructions stored on the one or more computer readable storage media for execution by at least one of the one or more computer processors, the stored program instructions including instructions to:
• determine if a redistribution of one or more register files is necessary;
• responsive to determining that the redistribution of the one or more register files is necessary, flush one or more register file transfers which have not yet completed;
• allocate one or more write locations based on a register free list, wherein one write location is allocated for each architected register of one or more architected registers to be redistributed;
• read a source data from each architected register of the one or more architected registers;
• and
• write the source data to the one or more write locations.