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hexagon-clang.exe: error: clang frontend command failed with exit code 70
ndiremdjian
Join Date: 9 Oct 18
Posts: 3
Posted: Mon, 2019-03-04 06:09
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Hi

After having developped my Hexagon v65 DSP code with the help of the libnative intrinsics emulation library, I am now trying to port it on the SDK board Open-Q 845.

I am only at build stage but I get fatal error feedback from hexagon-clang.exe like:

SplitVectorResult #0: t17: v32i32 = llvm.hexagon.V6.hi.128B TargetConstant:i32<1848>, t15
 
fatal error: error in backend: Do not know how to split the result of this operator!
 
hexagon-clang.exe: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Target: hexagon
Thread model: posix
QuIC LLVM Hexagon Clang version 8.1.05 (based on LLVM 4.0.0git-b1292dc)
InstalledDir: C:\Qualcomm\Hexagon_SDK\3.3.3\tools\HEXAGON_Tools\8.1.05\Tools\bin

Before that I also get this kind of message with vsplat and vmpy intrinsics instead of hi.

As I get this rather systematically, I guess that the issue is not within the compiler itself but the way I am using it.

What is triggering this kind of error and how to get rid of it ? Do I miss some mandatory compiler options ?

Thanks for helping here !

Best Regards,

Nicolas

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