From 1e326708e83b2e03807c689f14ed3772cd346efc Mon Sep 17 00:00:00 2001
From: Michael Hayes <m.hayes@elec.canterbury.ac.nz>
Date: Wed, 30 Sep 1998 18:09:47 +0000
Subject: regs.h (HARD_REGNO_CALL_PART_CLOBBERED): New macro.

        * regs.h (HARD_REGNO_CALL_PART_CLOBBERED):  New macro.
        * local-alloc.c (find_free_reg): Use it.
        * global.c (find_reg): Likewise.
        * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.

From-SVN: r22688
---
 gcc/regs.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'gcc/regs.h')

diff --git a/gcc/regs.h b/gcc/regs.h
index 02bdf92..a4065e6 100644
--- a/gcc/regs.h
+++ b/gcc/regs.h
@@ -217,6 +217,12 @@ extern int caller_save_needed;
   choose_hard_reg_mode (REGNO, NREGS)
 #endif
 
+/* Registers that get partially clobbered by a call in a given mode. 
+   These must not be call used registers.  */
+#ifndef HARD_REGNO_CALL_PART_CLOBBERED
+#define HARD_REGNO_CALL_PART_CLOBBERED(REGNO, MODE) 0
+#endif
+
 /* Allocated in local_alloc.  */
 
 /* A list of SCRATCH rtl allocated by local-alloc.  */
-- 
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