This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: patch: Optionally use -mlong-double-128 by default on alpha-linux
On Fri, Feb 03, 2006 at 08:10:02AM -0700, Roger Sayle wrote:
>
> On Fri, 3 Feb 2006, Aldy Hernandez wrote:
> > * config/alpha/alpha.h (ALPHA_LINUX): Define.
>
> If you moved this declaration to config/alpha/linux.h, it wouldn't need
> to be #undef'd in vms.h, osf.h, netbsd.h, openbsd.h, gnu.h, unicosmk.h :-)
Doh. Fixed. I also conditionalized the existence of the mangling function
on ALPHA_LINUX.
How does this look Richard?
* config/alpha/linux.h (ALPHA_LINUX): Define.
* config/alpha/alpha.c (override_options): Handle
TARGET_DEFAULT_LONG_DOUBLE_128.
(TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
(alpha_mangle_fundamental_type): New.
Index: config/alpha/linux.h
===================================================================
--- config/alpha/linux.h (revision 110515)
+++ config/alpha/linux.h (working copy)
@@ -77,3 +77,5 @@ Boston, MA 02110-1301, USA. */
#endif
#define MD_UNWIND_SUPPORT "config/alpha/linux-unwind.h"
+
+#define ALPHA_LINUX
Index: config/alpha/alpha.c
===================================================================
--- config/alpha/alpha.c (revision 110515)
+++ config/alpha/alpha.c (working copy)
@@ -235,6 +235,21 @@ alpha_handle_option (size_t code, const
return true;
}
+#ifdef ALPHA_LINUX
+/* Implement TARGET_MANGLE_FUNDAMENTAL_TYPE. */
+
+static const char *
+alpha_mangle_fundamental_type (tree type)
+{
+ if (TYPE_MAIN_VARIANT (type) == long_double_type_node
+ && TARGET_LONG_DOUBLE_128)
+ return "g";
+
+ /* For all other types, use normal C++ mangling. */
+ return NULL;
+}
+#endif
+
/* Parse target option strings. */
void
@@ -501,6 +516,11 @@ override_options (void)
REAL_MODE_FORMAT (DFmode) = &vax_g_format;
REAL_MODE_FORMAT (TFmode) = NULL;
}
+
+#ifdef TARGET_DEFAULT_LONG_DOUBLE_128
+ if (!(target_flags_explicit & MASK_LONG_DOUBLE_128))
+ target_flags |= MASK_LONG_DOUBLE_128;
+#endif
}
/* Returns 1 if VALUE is a mask that contains full bytes of zero or ones. */
@@ -10722,6 +10742,11 @@ alpha_init_libfuncs (void)
#undef TARGET_HANDLE_OPTION
#define TARGET_HANDLE_OPTION alpha_handle_option
+#ifdef ALPHA_LINUX
+#undef TARGET_MANGLE_FUNDAMENTAL_TYPE
+#define TARGET_MANGLE_FUNDAMENTAL_TYPE alpha_mangle_fundamental_type
+#endif
+
struct gcc_target targetm = TARGET_INITIALIZER;