------- Comment #5 from jvdelisle at gcc dot gnu dot org 2007-01-26 16:11 ------- I understand Erik's concern. -malign-double makes a significant performance difference on some of these machines and is commonly used.
The surest way to handle this is to put compute intensive code in separate files and create libraries that have no I/O involved. Then the driver routines that have the I/O can be compiled separately without any concern and link the compute routines in. I am interested to have a look at the patch Erik is proposing to see how intrusive it is. It may be suitable for '4.3 only' as an enhancement. I think we have bumped the library version already on 4.3. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30594
