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Compiler/TMS320C6678: TI C6000 CGT 8.x uses LLVM internally?

canfoderiskii
Expert 2255 points
Part Number: TMS320C6678

Tool/software: TI C/C++ Compiler

Hi,

When I'm using the CGT 8.1.x or 8.2.x, I can see in 'C6000 Compiler' -> 'Advanced Options' -> 'Predefined Symbols' tab of a CCS proejct properties, there are settings like 'LLVM Optimization Level' and 'Give Clang warning argument'.

Q1:Does that mean the CGT 8.x is using LLVM as backend?

Q2:What does the macro __TI_LLVM__ mean? I can see it defined somewhere like in stddef.h.

  • 0
    Expert 1820 points

    It seems to use clang (at least partially) as the frontend, as witnessed by the license information in the software manifest as well as the output of acpll6.exe:

    C:\> acpll6.exe

No input file specified.
TMS320C6x TI Clang C/C++ Parser         v8.1.3
Tools Copyright (c) 1996-2015 Texas Instruments Incorporated

[...]

  • 0
    TI__Guru**** 249900 points

    canfoderiskii said:
    Q1:Does that mean the CGT 8.x is using LLVM as backend?

    No.

    canfoderiskii said:
    Q2:What does the macro __TI_LLVM__ mean? I can see it defined somewhere like in stddef.h.

    There is an undocumented experimental mode which uses clang as the parser.  These macros are useful only in combination with this mode.

    Thanks and regards,

    -George