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Compiler/TMS320F28377S: Unresolved Symbol Error using CLA Compiler Intrinsics

Andrew Barnett
Intellectual 870 points
Part Number: TMS320F28377S

Tool/software: TI C/C++ Compiler

I am trying to use the intrinsic:

short __mgtu( unsigned int x, unsigned int y);

and others similar to it, defined in Table 10-1 of SPRU514T.

The specific code is:

Test_x1 = __mgtu(Test_x2, Test_x3);

variables are defined as follows:

short Test_x1;
short Test_x2;
short Test_x3;

I get the compiler error "unresolved symbol, __MGTU, first referenced in ..."

I can use the __mmaxf32, __mminf32 intrinsics with no problem.  

Why am I getting this error?

Thanks in advance for any insight.

  • 0
    TI__Guru* 91145 points

    Hello,

    A few things to check:

    1) Make sure you are using the intrinsic in CLA code and not C28x code. 

    andrew barnett71 said:
    I get the compiler error "unresolved symbol, __MGTU, first referenced in ..."

    2) The intrinsic is lowercase, but the error is in uppercase.  Make sure you are using lower case. 

    3) Make sure you are using a recent compiler release.  The intrinsic may not be supported in the compiler version you are using.  I suggest using the latest LTS (long term support) release v20.2.1.LTS  

    http://www.ti.com/tool/C2000-CGT

    Best Regards

    Lori

  • 0 in reply to Lori Heustess
    Intellectual 870 points

    yup, that did it, thanks