On 13-02-15 09:57, Richard Biener wrote:
[ We're still expanding ifn_va_arg before the va_list_gpr/fpr_size
>optimization. ]
Yeah, and the point of the exercise was of course to change that;)
Well, there are two parts.
The first is postpone expansion of va_arg to before the va_list_gpr/fpr_size
optimization. This eliminates disturbance between the expansion and the
optimization, and makes pass_stdarg more robust. This allows us to insert
optimizations before pass_stdarg without breaking pass_starg.
The second is to simplify pass_starg by handling va_arg rather than the
expansion of va_arg.
I think the first part by itself (which is done now) is already worthwhile on
its own.
Thanks,
- Tom
