针对GCC编译器指令调度的DUMP算法优化  

Optimization of DUMP Algorithm for GCC Compiler Instruction Scheduling

作　　者：余晓江 吴亚娟[1] 罗欣 YU Xiao-jiang;WU Ya-juan;LUO Xin(School of Computer Science,China West Normal University,Nanchong 637000,China)

机构地区：[1]西华师范大学计算机学院,四川南充637000

出　　处：《江西电力职业技术学院学报》2021年第1期17-18,共2页Journal of Jiangxi Vocational and Technical College of Electricity

基　　金：西华师范大学英才科研基金项目(课题编号:17YC163)。

摘　　要：GCC编译器可通过DUMP算法记录指令调度过程并输出,但是,只针对使用O0以上的编译优化的前提下,指令调度DUMP算法使编译器在使用O0编译优化时,也能够记录输出指令调度过程,为GCC编译器在移植开发过程中更加直观了解编译器的指令调度并进行执行调度优化。对DUMP算法进行改进优化,使得在使用编译选项-O0的情况下,也可以使用-fsched-verbose=n的n来控制编译器输出指定的调度信息。The GCC compiler can record the instruction scheduling process and output it through the DUMP algorithm.However,the instruction scheduling DUMP algorithm enables the compiler to record the output instruction scheduling process when using O0 compilation and optimization only under the premise of compiling and optimizing above O0.For the GCC compiler to understand the compiler’s instruction scheduling more intuitively and optimize the execution scheduling during the transplantation development process.The DUMP algorithm is improved and optimized,so that when the compiler option-O0 is used,n with-fsched-verbose=n can also be used to control the compiler to output the specified scheduling information.

关 键 词：GCC编译器 指令调度 DUMP算法 

分 类 号：TP314[自动化与计算机技术—计算机软件与理论]