From: Kazu Hirata <kazu@hxi.com>
Date: Thu, 26 Jul 2001 15:23:07 +0000 (+0000)
Subject: regmove.c (regmove_optimize): Don't replace a reg with another reg of a different... 
X-Git-Tag: prereleases/libstdc++-3.0.95~3026
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f302906571e3723a05f9ffdab31945638191579e;p=thirdparty%2Fgcc.git

regmove.c (regmove_optimize): Don't replace a reg with another reg of a different mode.

	* regmove.c (regmove_optimize): Don't replace a reg with
	another reg of a different mode.

From-SVN: r44399
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8bc87889e78c..431fcff73a84 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2001-07-26  Kazu Hirata  <kazu@hxi.com>
+
+	* regmove.c (regmove_optimize): Don't replace a reg with
+	another reg of a different mode.
+
 2001-07-26  Andrew MacLeod  <amacleod@redhat.com>
 
 	* params.def (PARAM_MAX_PENDING_LIST_LENGTH): Add parameter to 
diff --git a/gcc/regmove.c b/gcc/regmove.c
index 7e4914335121..587acea68937 100644
--- a/gcc/regmove.c
+++ b/gcc/regmove.c
@@ -1244,6 +1244,9 @@ regmove_optimize (f, nregs, regmove_dump_file)
 	      if (! regclass_compatible_p (src_class, dst_class))
 		continue;
 
+	      if (GET_MODE (src) != GET_MODE (dst))
+		continue;
+
 	      if (fixup_match_1 (insn, set, src, src_subreg, dst, pass,
 				 op_no, match_no,
 				 regmove_dump_file))