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Re: [PATCH,x86,FreeBSD] Update FreeBSD/i386 to i586
- From: Andreas Tobler <andreast at FreeBSD dot org>
- To: Gerald Pfeifer <gerald at pfeifer dot com>, gcc-patches at gcc dot gnu dot org
- Date: Sun, 15 Nov 2015 19:07:30 +0100
- Subject: Re: [PATCH,x86,FreeBSD] Update FreeBSD/i386 to i586
- Authentication-results: sourceware.org; auth=none
- References: <alpine dot LSU dot 2 dot 20 dot 1511151048110 dot 4990 at anthias>
On 15.11.15 10:52, Gerald Pfeifer wrote:
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?
Ok.
And okay for GCC 5 after two weeks or so on trunk?
Ok.
Thank you!
Andreas
2015-11-15 Gerald Pfeifer <gerald@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