This is something I had first done and tested a while ago, but
apparently failed to submit.
It did not show in my running of the testsuite (bootstrap and
testing without regressions on i386-unknown-freebsd10.1), but
in some cases the use of i586 instructions actually avoided
issues for users. And who is running i486 these days?
(And FreeBSD 5 has been out of support for many years; I guess
modern versions of GCC won't work there for completely different
reasons.)
Okay?
And okay for GCC 5 after two weeks or so on trunk?
Gerald
2015-11-15 Gerald Pfeifer <ger...@pfeifer.com>
* config/i386/freebsd.h (SUBTARGET32_DEFAULT_CPU): Change to i586.
Remove support for FreeBSD 5 and earlier.
Index: gcc/config/i386/freebsd.h
===================================================================
--- gcc/config/i386/freebsd.h (revision 230394)
+++ gcc/config/i386/freebsd.h (working copy)
@@ -121,10 +121,7 @@
/* Static stack checking is supported by means of probes. */
#define STACK_CHECK_STATIC_BUILTIN 1
-/* Support for i386 has been removed from FreeBSD 6.0 onward. */
-#if FBSD_MAJOR >= 6
-#define SUBTARGET32_DEFAULT_CPU "i486"
-#endif
+#define SUBTARGET32_DEFAULT_CPU "i586"
#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
