Question about STD64 ABI
Torbjorn Granlund
tg at gmplib.org
Fri Mar 30 12:44:14 CEST 2012
Torbjorn Granlund <tg at gmplib.org> writes:
If GCC generates code that takes advantage if this rule, then I expect
no problems at any standard platform.
GCC 4.7 on FreeBSD generates such code fpr bdiv_qr.c. This is not a
leaf function, so rsp is moved down before the calls. But the fact that
rsp[negative] is ever used means that this ABI feature is being
explored.
--
Torbjörn
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