|
Mos, The reason that the result of the second compile is slower is probably that the compiler is doing optimization at the file level. Try adding the -pm option to your list along with the -o3 and see if results are not better. The -pm option allows the compiler to have project level visibility by building a single temporary source file. Best Regards, Jon Thorn TI -----Original Message----- From: mohammed samdani [mailto:] Sent: Friday, February 21, 2003 12:20 PM To: Jeff Brower; Tao Wang Cc: Subject: Re: [c6x] about strip symbolic information in c6x linker hi, I am woring on TMS320c6201 DSP processor uning CCS V2. I am currently writing a program on the 6201 EVM. I have encountered a problem which I need some help with. There is a function in my project called rem_dc() which is called by main(). This function is in the same C file as main(). This is my 'C' file where I call my funtion rem_dc ( ). #include<stdio.h> main() { rem_dc ( ); // call my function } rem_dc( ) { } When I profiled the function (rem_dc( ) ), it took 3500 clock cycles (with -o3 potimization.). I then moved rem_dc( ) to a separate file in the the project. From the main file, I called the fuction rem_dc ( ). I then ran the program (again with -o3 optimization). rem_dc() took 23,000 cycles. Why is there such a large difference? All my sections(data, program,etc) in the.cmd file are in internal program memory. Thanks Mos ________________________________________________________________________ Missed your favourite TV serial last night? Try the new, Yahoo! TV. visit http://in.tv.yahoo.com _____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: Send an email to To Post: Send an email to To Leave: Send an email to Archives: http://www.yahoogroups.com/group/c6x Other Groups: http://www.dsprelated.com ">http://docs.yahoo.com/info/terms/ |
Compiler optimization, was about strip symbolic information in c6x linker
Started by ●February 21, 2003
