From: Joseph Myers <joseph@codesourcery.com>
Date: Mon, 29 Sep 2008 19:31:27 +0000 (+0100)
Subject: ifcvt.c (noce_emit_store_flag): If using condition from original jump, reverse it... 
X-Git-Tag: releases/gcc-4.4.0~2223
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=567075ed3155c2eaf016562367b26aa0edc2c9d6;p=thirdparty%2Fgcc.git

ifcvt.c (noce_emit_store_flag): If using condition from original jump, reverse it if if_info->cond was reversed.

	* ifcvt.c (noce_emit_store_flag): If using condition from original
	jump, reverse it if if_info->cond was reversed.

From-SVN: r140764
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a8d787bd86b2..8a5904f7903f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2008-09-29  Joseph Myers  <joseph@codesourcery.com>
+
+	* ifcvt.c (noce_emit_store_flag): If using condition from original
+	jump, reverse it if if_info->cond was reversed.
+
 2008-09-29  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* expr.c (expand_expr_real_1) <normal_inner_ref>: Force op0 to
diff --git a/gcc/ifcvt.c b/gcc/ifcvt.c
index 341174ab02fe..a0b49a3979c1 100644
--- a/gcc/ifcvt.c
+++ b/gcc/ifcvt.c
@@ -666,7 +666,15 @@ noce_emit_store_flag (struct noce_if_info *if_info, rtx x, int reversep,
      build the store_flag insn directly.  */
 
   if (cond_complex)
-    cond = XEXP (SET_SRC (pc_set (if_info->jump)), 0);
+    {
+      rtx set = pc_set (if_info->jump);
+      cond = XEXP (SET_SRC (set), 0);
+      if (GET_CODE (XEXP (SET_SRC (set), 2)) == LABEL_REF
+	  && XEXP (XEXP (SET_SRC (set), 2), 0) == JUMP_LABEL (if_info->jump))
+	reversep = !reversep;
+      if (if_info->then_else_reversed)
+	reversep = !reversep;
+    }
 
   if (reversep)
     code = reversed_comparison_code (cond, if_info->jump);