(convert_move): Use zero_extendpsisi2 to do an unsigned extension from PSImode to SImode.

	* (convert_move): Use zero_extendpsisi2 to do an unsigned extension
	from PSImode to SImode.

From-SVN: r36729

2 files changed, 13 insertions, 1 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2b01059..4438b3d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Thu Oct  5 19:04:18 2000  J"orn Rennecke <amylaar@redhat.co.uk>
+
+	* (convert_move): Use zero_extendpsisi2 to do an unsigned extension
+	from PSImode to SImode.
+
 2000-10-05  Jakub Jelinek  <jakub@redhat.com>
 
 	* emit-rtl.c (gen_lowpart_common) [REAL_ARITHMETICS]: Fix conversion
diff --git a/gcc/expr.c b/gcc/expr.c
index 0185922..ee68dff 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -1005,12 +1005,19 @@ convert_move (to, from, unsignedp)
       else
 	{
 #ifdef HAVE_extendpsisi2
-	  if (HAVE_extendpsisi2)
+	  if (! unsignedp && HAVE_extendpsisi2)
 	    {
 	      emit_unop_insn (CODE_FOR_extendpsisi2, to, from, UNKNOWN);
 	      return;
 	    }
 #endif /* HAVE_extendpsisi2 */
+#ifdef HAVE_zero_extendpsisi2
+	  if (unsignedp && HAVE_zero_extendpsisi2)
+	    {
+	      emit_unop_insn (CODE_FOR_zero_extendpsisi2, to, from, UNKNOWN);
+	      return;
+	    }
+#endif /* HAVE_zero_extendpsisi2 */
 	  abort ();
 	}
     }