builtin-types.def (BT_FN_VOID_CONST_PTR_VAR): Replace BT_FN_VOID_PTR_VAR.

        * builtin-types.def (BT_FN_VOID_CONST_PTR_VAR): Replace
        BT_FN_VOID_PTR_VAR.
        * builtins.def (BUILT_IN_PREFETCH): Change first argument to be const.
        * doc/extend.texi (__builtin_prefetch): Update documentation:
        first argument is now const void ptr.

        * gcc.c-torture/execute/builtin-prefetch-1.c: Changed first
        argument to __builtin_prefetch to be const ptr.

From-SVN: r49296

gcc/ChangeLog

+2002-01-28  Paul Koning  <pkoning@equallogic.com>
+
+	* builtin-types.def (BT_FN_VOID_CONST_PTR_VAR): Replace
+	BT_FN_VOID_PTR_VAR.
+	* builtins.def (BUILT_IN_PREFETCH): Change first argument to be const.
+	* doc/extend.texi (__builtin_prefetch): Update documentation:
+	first argument is now const void ptr.
+
 2002-01-28  Kazu Hirata  <kazu@hxi.com>
 
 	* config/h8300/h8300-protos.h: Remove an unused prototype.

gcc/builtin-types.def

@@ -167,8 +167,8 @@ DEF_FUNCTION_TYPE_VAR_0 (BT_FN_PTR_VAR, BT_PTR)
 
 DEF_FUNCTION_TYPE_VAR_1 (BT_FN_VOID_VALIST_REF_VAR, 
 			 BT_VOID, BT_VALIST_REF)
-DEF_FUNCTION_TYPE_VAR_1 (BT_FN_VOID_PTR_VAR,
-			 BT_VOID, BT_PTR)
+DEF_FUNCTION_TYPE_VAR_1 (BT_FN_VOID_CONST_PTR_VAR,
+			 BT_VOID, BT_CONST_PTR)
 DEF_FUNCTION_TYPE_VAR_1 (BT_FN_INT_CONST_STRING_VAR,
 	                 BT_INT, BT_CONST_STRING)
 

gcc/builtins.def

@@ -356,7 +356,7 @@ DEF_GCC_BUILTIN(BUILT_IN_TRAP,
 		BT_FN_VOID)
 DEF_GCC_BUILTIN(BUILT_IN_PREFETCH,
 		"__builtin_prefetch",
-		BT_FN_VOID_PTR_VAR)
+		BT_FN_VOID_CONST_PTR_VAR)
 
 /* Stdio builtins.  */
 DEF_FALLBACK_BUILTIN(BUILT_IN_PUTCHAR,

gcc/doc/extend.texi

@@ -4592,7 +4592,7 @@ if (__builtin_expect (ptr != NULL, 1))
 when testing pointer or floating-point values.
 @end deftypefn
 
-@deftypefn {Built-in Function} void __builtin_prefetch (void *@var{addr}, ...)
+@deftypefn {Built-in Function} void __builtin_prefetch (const void *@var{addr}, ...)
 This function is used to minimize cache-miss latency by moving data into
 a cache before it is accessed.
 You can insert calls to @code{__builtin_prefetch} into code for which

gcc/testsuite/ChangeLog

+2002-01-28  Paul Koning  <pkoning@equallogic.com>
+
+	* gcc.c-torture/execute/builtin-prefetch-1.c: Changed first
+	argument to __builtin_prefetch to be const ptr.
+
 2002-01-28  Jakub Jelinek  <jakub@redhat.com>
 
 	* gcc.c-torture/compile/20020120-1.c: New test.

gcc/testsuite/gcc.c-torture/execute/builtin-prefetch-1.c

@@ -17,7 +17,7 @@ enum rw { read, write };
 int arr[10];
 
 void
-good_const (int *p)
+good_const (const int *p)
 {
   __builtin_prefetch (p, 0, 0);
   __builtin_prefetch (p, 0, 1);
@@ -30,7 +30,7 @@ good_const (int *p)
 }
 
 void
-good_enum (int *p)
+good_enum (const int *p)
 {
     __builtin_prefetch (p, read, none);
     __builtin_prefetch (p, read, low);
@@ -43,14 +43,14 @@ good_enum (int *p)
 }
 
 void
-good_expr (int *p)
+good_expr (const int *p)
 {
   __builtin_prefetch (p, 1 - 1, 6 - (2 * 3));
   __builtin_prefetch (p, 1 + 0, 1 + 2);
 }
 
 void
-good_vararg (int *p)
+good_vararg (const int *p)
 {
   __builtin_prefetch (p, 0, 3);
   __builtin_prefetch (p, 0);