From: Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
Date: Fri, 10 Oct 2003 19:02:51 +0000 (+0000)
Subject: * combine.c (distribute_links): Properly test for REG being set.
X-Git-Tag: releases/gcc-3.4.0~3146
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=892c9f1f53581abe563e6e0183fbc05936d10e95;p=thirdparty%2Fgcc.git

* combine.c (distribute_links): Properly test for REG being set.

From-SVN: r72310
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5908a4228053..4f351d31a45a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,7 @@
 2003-10-10  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 
+	* combine.c (distribute_links): Properly test for REG being set.
+
 	* config/alpha/alpha.c (alpha_expand_block_mode): Don't use
 	gen_lowpart and company except for REG.
 
diff --git a/gcc/combine.c b/gcc/combine.c
index 7a0b5d3cad4d..1ac2851d63cd 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -12999,6 +12999,8 @@ distribute_links (rtx links)
 	    place = insn;
 	    break;
 	  }
+	else if (INSN_P (insn) && reg_set_p (reg, insn))
+	  break;
 
       /* If we found a place to put the link, place it there unless there
 	 is already a link to the same insn as LINK at that point.  */