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emit_va_arg

rustc_codegen_llvm::va_arg

Function emit_va_arg 

Source 
pub(crate) fn emit_va_arg<'ll, 'tcx>(
    bx: &mut GenericBuilder<'_, 'll, FullCx<'ll, 'tcx>>,
    addr: OperandRef<'tcx, &'ll Value>,
    target_ty: Ty<'tcx>,
) -> &'ll Value
Expand description

Determine the va_arg implementation to use. The LLVM va_arg instruction is lacking in some instances, so we should only use it as a fallback.