re PR target/43920 (Choosing conditional execution over conditional branches for…

re PR target/43920 (Choosing conditional execution over conditional branches for code size in some cases.)

2011-04-05  Tom de Vries  <tom@codesourcery.com>

	PR target/43920
	* cfgcleanup.c (flow_find_cross_jump): Don't count USE or CLOBBER as
	insn.

From-SVN: r171976

gcc/ChangeLog

 2011-04-05  Tom de Vries  <tom@codesourcery.com>
 
+	PR target/43920
+	* cfgcleanup.c (flow_find_cross_jump): Don't count USE or CLOBBER as
+	insn.
+
+2011-04-05  Tom de Vries  <tom@codesourcery.com>
+
 	* cfgcleanup.c (try_crossjump_bb): Remove 2 superfluous variables.
 
 2011-04-05  Yufeng Zhang  <yufeng.zhang@arm.com>

gcc/cfgcleanup.c

@@ -1070,6 +1070,7 @@ flow_find_cross_jump (basic_block bb1, basic_block bb2, rtx *f1, rtx *f2)
 {
   rtx i1, i2, last1, last2, afterlast1, afterlast2;
   int ninsns = 0;
+  rtx p1;
 
   /* Skip simple jumps at the end of the blocks.  Complex jumps still
      need to be compared for equivalence, which we'll do below.  */
@@ -1118,6 +1119,8 @@ flow_find_cross_jump (basic_block bb1, basic_block bb2, rtx *f1, rtx *f2)
 
 	  afterlast1 = last1, afterlast2 = last2;
 	  last1 = i1, last2 = i2;
+	  p1 = PATTERN (i1);
+	  if (!(GET_CODE (p1) == USE || GET_CODE (p1) == CLOBBER))
 	    ninsns++;
 	}