From: Bernd Schmidt <crux@ohara.Informatik.RWTH-Aachen.DE>
Date: Sun, 22 Feb 1998 19:44:08 +0000 (+0000)
Subject: expr.c (emit_move_insn_1): When moving complex values in several steps...
X-Git-Tag: prereleases/egcs-1.0.2-prerelease~11
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6afaaa98053b41647d6b39385b2bbd897d1c9407;p=thirdparty%2Fgcc.git

expr.c (emit_move_insn_1): When moving complex values in several steps...

	* expr.c (emit_move_insn_1): When moving complex values in several
	steps, emit a CLOBBER to show the destination dies.

From-SVN: r18192
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a55b878250bb..8dfec4121178 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Sun Feb 22 20:46:31 1998  Bernd Schmidt <crux@ohara.Informatik.RWTH-Aachen.DE>
+
+	* expr.c (emit_move_insn_1): When moving complex values in several
+	steps, emit a CLOBBER to show the destination dies.
+
 Sun Feb 22 20:06:34 1998  Jim Wilson  <wilson@cygnus.com>
 
 	* iris5.h (DWARF2_UNWIND_INFO): Define to 0.
diff --git a/gcc/expr.c b/gcc/expr.c
index 02ce45fe9fb6..75eda4253979 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -2259,6 +2259,10 @@ emit_move_insn_1 (x, y)
 	}
       else
 	{
+	  /* Show the output dies here.  */
+	  if (x != y)
+	    emit_insn (gen_rtx_CLOBBER (VOIDmode, x));
+
 	  emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
 		     (gen_realpart (submode, x), gen_realpart (submode, y)));
 	  emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)