[Bug testsuite/32843] [4.3 Regression] : libffi.call/return_sc.c

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2007-07-24 11:47 -------
The 32bit psABI specifies Integral Arguments as 'Functions pass all
integer-valued
arguments as words, expanding or padding signed or unsigned bytes and
halfwords as needed'. For return values the best I can find is 'A function that
returns an integral or pointer value places its result in register %eax.'
Both are not exactly clear whether sign- or zero-extension is required.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32843