[LLVMdev] LLVMInitializeMyTargetAsmPrinter is not called

[Duncan Sands]

Hi Nico, you want LLVM_ASM_PRINTER(MyTarget) to end up in
include/llvm/Config/AsmPrinters.def.  This is an auto-generated file, which
seems to get filled based on information in LLVMBuild files, for example take
a look at lib/Target/X86/LLVMBuild.txt and notice "has_asmprinter = 1".

Ciao, Duncan.

> I'm trying to implement a LLVM backend but have actually a problem and don't know how to handle. Actually I'm at the very beginning.
> I tried to (carefully) copy from existing backends (Sparc and Hexogon), but I messed up with something. My "LLVMInitializeMyTargetAsmPrinter" function is not called. All the other "LLVMInitializeMyTargetSomeThing" functions to register something are called, but not the one to register the AsmPrinter.
>
> The function is in the MyTargetAsmPrinter.cpp in the main directory of my target. It is just plain:
>
> extern "C" void LLVMInitializeMyTargetAsmPrinter() {
>    RegisterAsmPrinter<MyTargetAsmPrinter> X(TheMyTargetTarget);
> }
>
> I'm afraid I did a very subtle (or maybe stupid) change after copying, because I can't find it.
>
> Is there a switch in the build system for LLVMInitializeMyTargetAsmPrinter functions?
> Anything else in the backend code that triggers the call of these functions (especially LLVMInitializeMyTargetAsmPrinter) ?
>
> Thanks for any help or hint!
>
> Cheers,
> Nico
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