Mixing C-Assembly language code, Optimization ON, Code ouput Incorrect

vijay singh

Greetings,

I have C source code, which call an assembly function and this assembly function access global variables, passed as argument to this function.

Now code works fine when optimization is OFF and gives wrong output when Optimization is ON.

plus ,if i replace that assembly function with its C function and optimization is ON. Code works fine.

i Dont know where the problem is.

Do there are things to kept in mind for compiler optimization,while working with MIX C/ASM source code.

i tried using call assumption options,but that was giving build error in different part of code.reason unknown.

Any INFO will be helpfull.

Thanks.

0 Titusrathinaraj Stalin over 9 years ago

Hi,

Please refer the C6000 compiler user guide & chapter 4 "Assembly optimizer"

0 vijay singh over 9 years ago in reply to Titusrathinaraj Stalin

Hi,

I had already gone through chapter 4,but still i was not able to figure out why this thing is happening.

also tried using different compiler options.

still i am stuck.

please help.

thanks for consideration.

0 vijay singh over 9 years ago in reply to vijay singh

Hi,

Situation was clumsy,rearrangement of code/functions solved the problem.

0 Titusrathinaraj Stalin over 9 years ago in reply to vijay singh

Hi Vijay,

Glad to hear.

Thanks or your update.

0 LOKESHA HLMG over 8 years ago in reply to vijay singh

Dear Vijay,

I am also facing issues as mentioned by you. Please can you tell us what rearrangements you did so that you were able to solve the problem.

Regards,

Lokesha

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