CCS/AM5728: C66；DSP;

pengfei jin

Intellectual 585 points

Part Number: AM5728

Tool/software: Code Composer Studio

How to close the SPLOOP by Compile options？

over 5 years ago

0 George Mock over 5 years ago

TI__Guru**** 251010 points

I presume you mean to ask what compiler options are required in order for the compiler to generate software pipelined loops. Such loops are implemented with the SPLOOP instruction.

The compiler generates software pipelined loops when you build with the option --opt_level=2 or higher. For more related information, please see the C6000 optimization presentation from the article TI Compiler Presentations.

Thanks and regards,

-George

0 pengfei jin over 5 years ago in reply to George Mock

Intellectual 585 points

Thanks ,but

I wasn't clear enough in my request. I mean what compiler options can close the SPLOOP so that I can see the assembly code before SPLOOP to contrast and analysis its performance improvement.

0 George Mock over 5 years ago in reply to pengfei jin

TI__Guru**** 251010 points

Just as an experiment, use the option --disable_software_pipeline. Please do not use this option on a production build.

Thanks and regards,

-George

0 pengfei jin over 5 years ago in reply to George Mock

Intellectual 585 points

Hi George,

I got SPLOOP is from the Hardware support , I mean only close the SPLOOP but not close the software_pipeline so that I can analysis the performance improvement between the software_pipeline based SPLOOP and software_pipeline not based SPLOOP.

0 George Mock over 5 years ago in reply to pengfei jin

TI__Guru**** 251010 points

pengfei jin said:
I mean only close the SPLOOP but not close the software_pipeline

Unfortunately, there is no compiler option which has that effect.

Thanks and regards,

-George

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CCS/AM5728: C66；DSP;