Method for processing instruction, processor, electronic apparatus and storage medium

A processor, comprising an instruction data cache, an instruction stream transmission unit, and a branch prediction error determination unit,

• wherein the instruction stream transmission unit is configured to write an instruction stream into the instruction data cache and the branch prediction error determination unit in parallel in an instruction processing pipeline;
• and
• the branch prediction error determination unit is configured to:
• determine a branch instruction in the instruction stream and whether a branch prediction error exists for the branch instruction;
• and
• in response to the branch prediction error existing for the branch instruction, perform a flush operation on an object instruction in the instruction processing pipeline that is fetched due to the branch prediction error.

An electronic apparatus, comprising:

• at least one processor;
• at least one memory storing one or more computer program modules,
• wherein the one or more computer program modules are configured to be executed by the at least one processor to implement a method for processing an instruction, and the method comprises:
• writing an instruction stream into an instruction data cache and a branch prediction error determination unit in parallel in an instruction processing pipeline, and determining a branch instruction in the instruction stream and whether a branch prediction error exists for the branch instruction in the branch prediction error determination unit;
• and
• in response to the branch prediction error existing for the branch instruction, performing a flush operation on an object instruction in the instruction processing pipeline that is fetched due to the branch prediction error.