re PR c/5304 (gcc-20011231 generates incorrect divmod code for chars)

	PR c/5304:
	* expmed.c (expand_mult_highpart): Use immed_double_const for wide_op1
	unconditionally.

	* gcc.c-torture/execute/20020201-1.c: New test.

From-SVN: r49416

gcc/ChangeLog

+2002-02-02  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/5304:
+	* expmed.c (expand_mult_highpart): Use immed_double_const for wide_op1
+	unconditionally.
+
 2002-02-01  Janis Johnson  <janis187@us.ibm.com>
 
 	* cfganal.c: Include tm_p.h.

gcc/expmed.c

@@ -2760,9 +2760,6 @@ expand_mult_highpart (mode, op0, cnst1, target, unsignedp, max_cost)
 
   op1 = GEN_INT (trunc_int_for_mode (cnst1, mode));
 
-  if (GET_MODE_BITSIZE (wider_mode) <= HOST_BITS_PER_INT)
-    wide_op1 = op1;
-  else
   wide_op1
     = immed_double_const (cnst1,
 			  (unsignedp

gcc/testsuite/ChangeLog

+2002-02-02  Jakub Jelinek  <jakub@redhat.com>
+
+	* gcc.c-torture/execute/20020201-1.c: New test.
+
 2002-02-01  Janis Johnson  <janis187@us.ibm.com>
 
 	PR target/5469

gcc/testsuite/gcc.c-torture/execute/20020201-1.c

+/* Test whether division by constant works properly.  */
+
+extern void abort (void);
+extern void exit (int);
+
+unsigned char cx = 7;
+unsigned short sx = 14;
+unsigned int ix = 21;
+unsigned long lx = 28;
+unsigned long long Lx = 35;
+
+int
+main ()
+{
+  unsigned char cy;
+  unsigned short sy;
+  unsigned int iy;
+  unsigned long ly;
+  unsigned long long Ly;
+  
+  cy = cx / 6; if (cy != 1) abort ();
+  cy = cx % 6; if (cy != 1) abort ();
+
+  sy = sx / 6; if (sy != 2) abort ();
+  sy = sx % 6; if (sy != 2) abort ();
+
+  iy = ix / 6; if (iy != 3) abort ();
+  iy = ix % 6; if (iy != 3) abort ();
+
+  ly = lx / 6; if (ly != 4) abort ();
+  ly = lx % 6; if (ly != 4) abort ();
+
+  Ly = Lx / 6; if (Ly != 5) abort ();
+  Ly = Lx % 6; if (Ly != 5) abort ();
+
+  exit(0);
+}