I've just committed two tests for the x86_64 ELF ABI which currently
fail, because we don't deal properly with mixed structures along the
lines of
struct {
double x;
long y;
};
Such structs should be split and passed in an SSE register plus an
integer register, which the current approach, assigning VT_QFLOAT or
VT_QLONG as structure type, fails to deal with.
I think I've got most of what's needed for a fix here, but the change
involves rewriting a little of the x86_64 code; a less intrusive fix
would be preferred, I think.
I'll try isolating this from my other changes and coming up with a patch.
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