弱弱的问：ccs的反馈信息是什么意思

fizphy1985

软件流水的反馈信息
           LDNDW   .D1T1   *+A3(56),A7:A6    ; |9| <0,0>
           LDNDW   .D1T1   *++A18(2),A5:A4   ; |9| <0,1>  ^
           LDNDW   .D1T1   *+A18(56),A9:A8   ; |9| <0,2>  ^
           LDNDW   .D1T2   *+A3(48),B5:B4    ; |9| <0,3>
我想问一下 <0,0>表示的是什么？还有 ^符号表示什么呢？

haichao

Try to read on PGO (Profile Guided Optimization).
It is a means to gather information at
runtime from the execution of the program, which can
be used to help the compiler to produce more efficient
code. regarding this topic, I'd expect to exist some
documntation on your original question: "How to
understand assembler", or better said, "how to
understand what the compiler did to produce that
assembly code". Another question, is "how to
understand how good is the assembler code produced y
the compiler"

fizphy1985

thanks