英和和英

出典:『Wikipedia』 (2009/12/07 07:12 UTC 版)

英語による解説

引用

Loop unswitching is a compiler optimization. It moves a conditional inside a loop outside of it by duplicating the loop's body, and placing a version of it inside each of the if and else clauses of the conditional. This can improve the parallelization of the loop. Since modern processors can operate fast on vectors this increases the speed.