CCS: Decrement loop is not possible in Kernel-C program?

vasantha kumar raju angappan

Intellectual 370 points

Tool/software: Code Composer Studio

Hi,

As one of the optimization technique, I tried to decrement the loop flow as given below.

for(int I2=(img_width/VCOP_2SIMD_WIDTH); I2>=0; I2--)

I got the following build errors and one of them is:

error #26001-D: syntax error near ';'

1. How to overcome this error?

2. Implementing a loop in this way is it not possible in Kernel-C program?

Thanks,

Vasanth

over 7 years ago

0 Keith Barkley over 7 years ago

Guru 43065 points

I am not sure what "kernal c" is, but maybe it does not allow declarations in the for control statements. Try declaring I2 outside the loop.

0 vasantha kumar raju angappan over 7 years ago in reply to Keith Barkley

Intellectual 370 points

Hi Keith,

I doubt that can't be the issue.

Because in the incremental loop code, we declare I2 inside for statement only as follows and it works without any issue.

for(int I2=0;I2<img_width/VCOP_2SIMD_WIDTH; I2++)

Thanks,
Vasanth

0 Keith Barkley over 7 years ago in reply to vasantha kumar raju angappan

Guru 43065 points

What are the other errors? There are no obvious syntax errors. Are you missing a semi-colon on the line above so that it is using the semi-colon in the middle of the for control statements to terminate the statement?

0 George Mock over 7 years ago

TI__Guru**** 253210 points

For the source file which has this problem ...

vasantha kumar raju angappan said:

for(int I2=(img_width/VCOP_2SIMD_WIDTH); I2>=0; I2--)

I got the following build errors and one of them is:

error #26001-D: syntax error near ';'

... please submit a test case as described in the article How to Submit a Compiler Test Case. That will allow us to reproduce the exact same problem for the exact same reason, and then probably give you a solution.

Thanks and regards,

-George

0 vasantha kumar raju angappan over 7 years ago in reply to George Mock

Intellectual 370 points

Sure George.
I will submit a compiler test case.

Thanks,
Vasanth

0 George Mock over 7 years ago in reply to vasantha kumar raju angappan

TI__Guru**** 253210 points

Please submit the requested test case.

Thanks and regards,

-George

0 George Mock over 7 years ago in reply to George Mock

TI__Guru**** 253210 points

Since it has been a while, I presume you have resolved the problem. I'd appreciate hearing how you resolved it.

Thanks and regards,

-George

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CCS: Decrement loop is not possible in Kernel-C program?