[LLVMdev] hi, llvm-gcc deal with va_arg() by word alignment.

[Duncan Sands]

Hi,

>      I am porting llvm to our embedded cpu.
> By my abi, long long type is aligned by 8 bytes.
> But now llvm-gcc frontend follows x86 abi, generate 
> word-alignment LLVM-IR for va_arg().

if llvm-gcc thinks the alignment is 4 but it is not then you
will get more problems than just with va_arg.  Why not teach
llvm-gcc about your target?

Ciao,

Duncan.