| 摘要 |
A method of identifying instructions including accessing a plurality of instructions that comprise multiple branch instructions. For each branch instruction of the multiple branch instructions, a respective first mask is generated representing instructions that are executed if a branch is taken. A respective second mask is generated representing instructions that are executed if the branch is not taken. A prediction output is received that comprises a respective branch prediction for each branch instruction. For each branch instruction, the prediction output is used to select a respective resultant mask from among the respective first and second masks. For each branch instruction, a resultant mask of a subsequent branch is invalidated if a previous branch is predicted to branch over said subsequent branch. A logical operation is performed on all resultant masks to produce a final mask. The final mask is used to select a subset of instructions for execution. |
