From patchwork Fri Aug 10 00:45:32 2012
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Subject: [rl78] add some checks
Date: Thu, 09 Aug 2012 14:45:32 -0000
From: DJ Delorie <dj@redhat.com>
X-Patchwork-Id: 176303
Message-Id: <201208100045.q7A0jWm9016705@greed.delorie.com>
To: gcc-patches@gcc.gnu.org

RTL checking pointed out a couple of cases where rl78.c was extracting
info from rtx without checking the rtx type first.  Applied.

2012-08-09  DJ Delorie  <dj@redhat.com>

	* config/rl78/rl78.c (rl78_alloc_physical_registers): Check for
	SET before extracting SET_SRC.
	(rl78_remove_unused_sets): Check for REG before extractnig REGNO.


Index: config/rl78/rl78.c
===================================================================
--- config/rl78/rl78.c	(revision 190277)
+++ config/rl78/rl78.c	(working copy)
@@ -2217,7 +2217,8 @@
 	  && GET_CODE (PATTERN (insn)) != CALL)
 	  continue;
 
-      if (GET_CODE (SET_SRC (PATTERN (insn))) == ASM_OPERANDS)
+      if (GET_CODE (PATTERN (insn)) == SET
+	  && GET_CODE (SET_SRC (PATTERN (insn))) == ASM_OPERANDS)
 	continue;
 
       valloc_method = get_attr_valloc (insn);
@@ -2644,7 +2645,7 @@
 
       dest = SET_DEST (insn);
 
-      if (REGNO (dest) > 23)
+      if (GET_CODE (dest) != REG || REGNO (dest) > 23)
 	continue;
 
       if (find_regno_note (insn, REG_UNUSED, REGNO (dest)))