combine.c (SHIFT_COUNT_TRUNCATED): Remove.

	* combine.c (SHIFT_COUNT_TRUNCATED): Remove.
	* defaults.h (SHIFT_COUNT_TRUNCATED): Provide the default.
	* expmed.c: Assume SHIFT_COUNT_TRUNCATED is always defined.
	* fold-const.c: Likewise.
	* simplify-rtx.c: Likewise.

From-SVN: r78230

gcc/ChangeLog

+2004-02-21  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* combine.c (SHIFT_COUNT_TRUNCATED): Remove.
+	* defaults.h (SHIFT_COUNT_TRUNCATED): Provide the default.
+	* expmed.c: Assume SHIFT_COUNT_TRUNCATED is always defined.
+	* fold-const.c: Likewise.
+	* simplify-rtx.c: Likewise.
+
 2004-02-21  Alan Modra  <amodra@bigpond.net.au>
 
 	* combine.c (can_combine_p): Don't ignore SETs marked with

gcc/combine.c

@@ -91,10 +91,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #include "toplev.h"
 #include "target.h"
 
-#ifndef SHIFT_COUNT_TRUNCATED
-#define SHIFT_COUNT_TRUNCATED 0
-#endif
-
 /* Number of attempts to combine instructions in this function.  */
 
 static int combine_attempts;

gcc/defaults.h

@@ -699,4 +699,8 @@ You Lose!  You must define PREFERRED_DEBUGGING_TYPE!
 #define OUTGOING_REGNO(N) (N)
 #endif
 
+#ifndef SHIFT_COUNT_TRUNCATED
+#define SHIFT_COUNT_TRUNCATED 0
+#endif
+
 #endif  /* ! GCC_DEFAULTS_H */

gcc/expmed.c

@@ -1992,7 +1992,6 @@ expand_shift (enum tree_code code, enum machine_mode mode, rtx shifted,
 
   op1 = expand_expr (amount, NULL_RTX, VOIDmode, 0);
 
-#ifdef SHIFT_COUNT_TRUNCATED
   if (SHIFT_COUNT_TRUNCATED)
     {
       if (GET_CODE (op1) == CONST_INT
@@ -2004,7 +2003,6 @@ expand_shift (enum tree_code code, enum machine_mode mode, rtx shifted,
 	       && subreg_lowpart_p (op1))
 	op1 = SUBREG_REG (op1);
     }
-#endif
 
   if (op1 == const0_rtx)
     return shifted;

gcc/fold-const.c

@@ -374,10 +374,8 @@ lshift_double (unsigned HOST_WIDE_INT l1, HOST_WIDE_INT h1,
       return;
     }
 
-#ifdef SHIFT_COUNT_TRUNCATED
   if (SHIFT_COUNT_TRUNCATED)
     count %= prec;
-#endif
 
   if (count >= 2 * HOST_BITS_PER_WIDE_INT)
     {
@@ -437,10 +435,8 @@ rshift_double (unsigned HOST_WIDE_INT l1, HOST_WIDE_INT h1,
 	      ? -((unsigned HOST_WIDE_INT) h1 >> (HOST_BITS_PER_WIDE_INT - 1))
 	      : 0);
 
-#ifdef SHIFT_COUNT_TRUNCATED
   if (SHIFT_COUNT_TRUNCATED)
     count %= prec;
-#endif
 
   if (count >= 2 * HOST_BITS_PER_WIDE_INT)
     {

gcc/simplify-rtx.c

@@ -1369,10 +1369,8 @@ simplify_binary_operation (enum rtx_code code, enum machine_mode mode,
 	case LSHIFTRT:   case ASHIFTRT:
 	case ASHIFT:
 	case ROTATE:     case ROTATERT:
-#ifdef SHIFT_COUNT_TRUNCATED
 	  if (SHIFT_COUNT_TRUNCATED)
 	    l2 &= (GET_MODE_BITSIZE (mode) - 1), h2 = 0;
-#endif
 
 	  if (h2 != 0 || l2 >= GET_MODE_BITSIZE (mode))
 	    return 0;
@@ -2152,10 +2150,8 @@ simplify_binary_operation (enum rtx_code code, enum machine_mode mode,
       if (arg1 < 0)
 	return 0;
 
-#ifdef SHIFT_COUNT_TRUNCATED
       if (SHIFT_COUNT_TRUNCATED)
 	arg1 %= width;
-#endif
 
       val = ((unsigned HOST_WIDE_INT) arg0) >> arg1;
       break;
@@ -2164,10 +2160,8 @@ simplify_binary_operation (enum rtx_code code, enum machine_mode mode,
       if (arg1 < 0)
 	return 0;
 
-#ifdef SHIFT_COUNT_TRUNCATED
       if (SHIFT_COUNT_TRUNCATED)
 	arg1 %= width;
-#endif
 
       val = ((unsigned HOST_WIDE_INT) arg0) << arg1;
       break;
@@ -2176,10 +2170,8 @@ simplify_binary_operation (enum rtx_code code, enum machine_mode mode,
       if (arg1 < 0)
 	return 0;
 
-#ifdef SHIFT_COUNT_TRUNCATED
       if (SHIFT_COUNT_TRUNCATED)
 	arg1 %= width;
-#endif
 
       val = arg0s >> arg1;