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2017 Aug 09
4
[RFC] The future of the va_arg instruction
...430, Mips, PPC, Sparc, WebAssembly, X86,
XCore
It's worth nothing there has been some relevant prior discussion, see these
messages from Will Dietz and Renato Golin
<http://lists.llvm.org/pipermail/llvm-dev/2011-August/042505.html>
<http://lists.llvm.org/pipermail/llvm-dev/2011-August/042509.html>.
## Options for the future of va_arg
Option 1: Discourage use of va_arg and aim to remove it in the future
* Most targets frontends have to directly manipulate va_list in at least
some cases. You could argue we'd be better off by having varargs
handled in a uniform manner, even...