From e1a8c3947f0e640d5c14d50e05d701c993f50e4d Mon Sep 17 00:00:00 2001
From: Michael Meissner <meissner@gcc.gnu.org>
Date: Fri, 23 Sep 1994 20:11:00 +0000
Subject: [PATCH] Make ebx a call clobbered register.

From-SVN: r8125
---
 gcc/config/i386/lynx-ng.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gcc/config/i386/lynx-ng.h b/gcc/config/i386/lynx-ng.h
index 51977d078cd0..cb96b44bb651 100644
--- a/gcc/config/i386/lynx-ng.h
+++ b/gcc/config/i386/lynx-ng.h
@@ -28,3 +28,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #undef LINK_SPEC
 #define LINK_SPEC "-P1000 %{msystem-v:-V} %{mcoff:-k}"
 
+/* Apparently LynxOS clobbers ebx when you call into the OS.  */
+
+#undef CALL_USED_REGISTERS
+#define CALL_USED_REGISTERS \
+/*ax,dx,cx,bx,si,di,bp,sp,st,st1,st2,st3,st4,st5,st6,st7,arg*/ \
+{  1, 1, 1, 1, 0, 0, 0, 1, 1,  1,  1,  1,  1,  1,  1,  1,  1 }
-- 
2.43.5