For a closure, when an argument is a structure containing multiple floats, it
seems that all but the first two floats are lost (on my machine they seem to
consistently be set to zeros).
This is a big problem in GNUstep where we pass NSRect structures (containing
four floats), but I managed to reproduce it by changing one of the libffi
testsuite files to pass a structure containing four floats.
I have reproduced this problem with libffi from the 4.? series of gcc and have
also found it with libffi-3.0.9rc3
--
Summary: closures fail for some structure arguments containing
floats
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libffi
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rfm at gnu dot org
GCC build triplet: x86_64-linux-gnu
GCC host triplet: x86_64-linux-gnu
GCC target triplet: x86_64-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41908