From: Bernd Schmidt <bernds@codesourcery.com>
Date: Fri, 28 Sep 2012 20:32:55 +0000 (+0000)
Subject: re PR bootstrap/54688 (violation of implicit restriction "No_Elaboration_Code" on... 
X-Git-Tag: misc/gccgo-go1_1_2~581
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0380c51fefbf548d957595868069e1af09190e69;p=thirdparty%2Fgcc.git

re PR bootstrap/54688 (violation of implicit restriction "No_Elaboration_Code" on a-ioexce.ads)

	PR bootstrap/54688
	* sched-deps.c (parse_add_or_inc): Remove MINUS handling.  Take
	STACK_GROWS_DOWNWARD into account.

From-SVN: r191838
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6f2fb9f40770..7851337f434d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2012-09-20  Bernd Schmidt  <bernds@codesourcery.com>
+
+	PR bootstrap/54688
+	* sched-deps.c (parse_add_or_inc): Remove MINUS handling.  Take
+	STACK_GROWS_DOWNWARD into account.
+
 2012-09-28  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/54716
diff --git a/gcc/sched-deps.c b/gcc/sched-deps.c
index f53caddf7354..6625a53a699b 100644
--- a/gcc/sched-deps.c
+++ b/gcc/sched-deps.c
@@ -4600,8 +4600,7 @@ parse_add_or_inc (struct mem_inc_info *mii, rtx insn, bool before_mem)
   if (!REG_P (SET_DEST (pat)))
     return false;
 
-  if (GET_CODE (SET_SRC (pat)) != PLUS
-      && GET_CODE (SET_SRC (pat)) != MINUS)
+  if (GET_CODE (SET_SRC (pat)) != PLUS)
     return false;
 
   mii->inc_insn = insn;
@@ -4629,9 +4628,14 @@ parse_add_or_inc (struct mem_inc_info *mii, rtx insn, bool before_mem)
     }
 
   if (regs_equal && REGNO (SET_DEST (pat)) == STACK_POINTER_REGNUM)
-    /* Note that the sign has already been reversed for !before_mem.  */
-    return mii->inc_constant > 0;
-
+    {
+      /* Note that the sign has already been reversed for !before_mem.  */
+#ifdef STACK_GROWS_DOWNWARD
+      return mii->inc_constant > 0;
+#else
+      return mii->inc_constant < 0;
+#endif
+    }
   return true;
 }