re PR middle-end/52140 (Libdfp testcase encounters ICE when compiled with soft-dfp (no -mcpu).)

gcc/
	PR middle-end/52140
	* dojump.c (do_compare_rtx_and_jump): Use SCALAR_FLOAT_MODE_P.

gcc/testsuite/
	PR middle-end/52140
	* gcc.dg/dfp/pr52140.c: New test.

From-SVN: r184045

gcc/ChangeLog

+2012-02-09  Peter Bergner  <bergner@vnet.ibm.com>
+
+	PR middle-end/52140
+	* dojump.c (do_compare_rtx_and_jump): Use SCALAR_FLOAT_MODE_P.
+
 2012-02-09  Jakub Jelinek  <jakub@redhat.com>
 
 	PR debug/52165

gcc/dojump.c

@@ -1049,7 +1049,7 @@ do_compare_rtx_and_jump (rtx op0, rtx op1, enum rtx_code code, int unsignedp,
     }
   else
     {
-      if (GET_MODE_CLASS (mode) == MODE_FLOAT
+      if (SCALAR_FLOAT_MODE_P (mode)
 	  && ! can_compare_p (code, mode, ccp_jump)
 	  && can_compare_p (swap_condition (code), mode, ccp_jump))
 	{
@@ -1060,7 +1060,7 @@ do_compare_rtx_and_jump (rtx op0, rtx op1, enum rtx_code code, int unsignedp,
 	  op1 = tmp;
 	}
 
-      else if (GET_MODE_CLASS (mode) == MODE_FLOAT
+      else if (SCALAR_FLOAT_MODE_P (mode)
 	       && ! can_compare_p (code, mode, ccp_jump)
 
 	       /* Never split ORDERED and UNORDERED.  These must be implemented.  */

gcc/testsuite/ChangeLog

+2012-02-09  Peter Bergner  <bergner@vnet.ibm.com>
+
+	PR middle-end/52140
+	* gcc.dg/dfp/pr52140.c: New test.
+
 2012-02-09  Jakub Jelinek  <jakub@redhat.com>
 
 	PR fortran/32380

gcc/testsuite/gcc.dg/dfp/pr52140.c

+/* { dg-do compile } */
+/* { dg-options "-O1" } */
+
+/* This used to result in an ICE.  */
+
+int
+foo (_Decimal64 x, _Decimal64 y)
+{
+  return (x < y) || (x > y);
+}