From: Stephane Carrez <stcarrez@nerim.fr>
Date: Thu, 16 Jan 2003 22:12:39 +0000 (+0100)
Subject: m68hc11.c (m68hc11_check_z_replacement): Fix handling 68HC12 pre/post inc/dec side... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=200097cc9a3d0355c61c8630a03e991563f91104;p=gcc.git

m68hc11.c (m68hc11_check_z_replacement): Fix handling 68HC12 pre/post inc/dec side effects.

	* config/m68hc11/m68hc11.c (m68hc11_check_z_replacement): Fix handling
	68HC12 pre/post inc/dec side effects.

From-SVN: r61410
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 93446796999..2cbeff1fcf7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-01-16  Stephane Carrez  <stcarrez@nerim.fr>
+
+	* config/m68hc11/m68hc11.c (m68hc11_check_z_replacement): Fix handling
+	68HC12 pre/post inc/dec side effects.
+
 2003-01-16  Stephane Carrez  <stcarrez@nerim.fr>
 
 	* config/m68hc11/m68hc11.h (MASK_M6812): Define.
diff --git a/gcc/config/m68hc11/m68hc11.c b/gcc/config/m68hc11/m68hc11.c
index e7626a23305..a45b4cac4f3 100644
--- a/gcc/config/m68hc11/m68hc11.c
+++ b/gcc/config/m68hc11/m68hc11.c
@@ -4341,7 +4341,13 @@ m68hc11_check_z_replacement (insn, info)
 		      info->z_died = 1;
 		      info->need_save_z = 0;
 		    }
-		  else
+		  else if (TARGET_M6812 && side_effects_p (src))
+                    {
+                      info->last = 0;
+                      info->must_restore_reg = 0;
+                      return 0;
+                    }
+                  else
 		    {
 		      info->save_before_last = 1;
 		    }
@@ -4418,7 +4424,13 @@ m68hc11_check_z_replacement (insn, info)
 		      info->z_died = 1;
 		      info->need_save_z = 0;
 		    }
-		  else
+		  else if (TARGET_M6812 && side_effects_p (src))
+                    {
+                      info->last = 0;
+                      info->must_restore_reg = 0;
+                      return 0;
+                    }
+                  else
 		    {
 		      info->save_before_last = 1;
 		    }