------- Comment #2 from spam_from_gcc_bugzilla at chezphil dot org 2010-04-05 14:10 ------- Hi Richard,
This is obviously less of an issue than it was in 2007. I think there are enough pre-ARMv6 systems still deployed that they cannot be ignored, though. For example, I believe that the Android native development kit assumes that the hardware is >= ARMv5. Currently, portable code need to do something like: #if v6 or newer ...use gcc builtins, which generate ldx/stx... #else ...use asm statements that generate swp... #endif It would be a bit less clunky if gcc builtins could be used in both cases. Personally, I use asm sufficiently rarely that it takes me a while to work out the syntax each time (both the actual assembler syntax and the gcc asm statement syntax). The builtins are much easier to use. Regards, Phil. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33413
