expr.c (check_max_integer_computation_mode): Remove.

	* expr.c (check_max_integer_computation_mode): Remove.
	* dojump.c (do_jump): Don't use MAX_INTEGER_COMPUTATION_MODE.
	* fold-const.c (fold): Likewise.
	* system.h (MAX_INTEGER_COMPUTATION_MODE): Poison.
	* doc/tm.texi (MAX_INTEGER_COMPUTATION_MODE): Remove.

From-SVN: r74868

6 files changed, 9 insertions, 114 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 20b8acf..5528fd7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2003-12-19  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* expr.c (check_max_integer_computation_mode): Remove.
+	* dojump.c (do_jump): Don't use MAX_INTEGER_COMPUTATION_MODE.
+	* fold-const.c (fold): Likewise.
+	* system.h (MAX_INTEGER_COMPUTATION_MODE): Poison.
+	* doc/tm.texi (MAX_INTEGER_COMPUTATION_MODE): Remove.
+
 2003-12-19  James E Wilson  <wilson@specifixinc.com>
 
 	* configure.in: Delete libunwind_has_eh_support test.
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 028e59d..d6568c9 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -8940,15 +8940,6 @@ A C statement that adds to @var{clobbers} @code{STRING_CST} trees for
 any hard regs the port wishes to automatically clobber for all asms.
 @end defmac
 
-@defmac MAX_INTEGER_COMPUTATION_MODE
-Define this to the largest integer machine mode which can be used for
-operations other than load, store and copy operations.
-
-You need only define this macro if the target holds values larger than
-@code{word_mode} in general purpose registers.  Most targets should not define
-this macro.
-@end defmac
-
 @defmac MATH_LIBRARY
 Define this macro as a C string constant for the linker argument to link
 in the system math library, or @samp{""} if the target does not have a
diff --git a/gcc/dojump.c b/gcc/dojump.c
index 1f938a8..6b9569b 100644
--- a/gcc/dojump.c
+++ b/gcc/dojump.c
@@ -126,10 +126,6 @@ do_jump (tree exp, rtx if_false_label, rtx if_true_label)
   tree type;
   enum machine_mode mode;
 
-#ifdef MAX_INTEGER_COMPUTATION_MODE
-  check_max_integer_computation_mode (exp);
-#endif
-
   emit_queue ();
 
   switch (code)
diff --git a/gcc/expr.c b/gcc/expr.c
index cdae28c..93ab7e0 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -5943,60 +5943,6 @@ var_rtx (tree exp)
       return 0;
     }
 }
-
-#ifdef MAX_INTEGER_COMPUTATION_MODE
-
-void
-check_max_integer_computation_mode (tree exp)
-{
-  enum tree_code code;
-  enum machine_mode mode;
-
-  /* Strip any NOPs that don't change the mode.  */
-  STRIP_NOPS (exp);
-  code = TREE_CODE (exp);
-
-  /* We must allow conversions of constants to MAX_INTEGER_COMPUTATION_MODE.  */
-  if (code == NOP_EXPR
-      && TREE_CODE (TREE_OPERAND (exp, 0)) == INTEGER_CST)
-    return;
-
-  /* First check the type of the overall operation.   We need only look at
-     unary, binary and relational operations.  */
-  if (TREE_CODE_CLASS (code) == '1'
-      || TREE_CODE_CLASS (code) == '2'
-      || TREE_CODE_CLASS (code) == '<')
-    {
-      mode = TYPE_MODE (TREE_TYPE (exp));
-      if (GET_MODE_CLASS (mode) == MODE_INT
-	  && mode > MAX_INTEGER_COMPUTATION_MODE)
-	internal_error ("unsupported wide integer operation");
-    }
-
-  /* Check operand of a unary op.  */
-  if (TREE_CODE_CLASS (code) == '1')
-    {
-      mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)));
-      if (GET_MODE_CLASS (mode) == MODE_INT
-	  && mode > MAX_INTEGER_COMPUTATION_MODE)
-	internal_error ("unsupported wide integer operation");
-    }
-
-  /* Check operands of a binary/comparison op.  */
-  if (TREE_CODE_CLASS (code) == '2' || TREE_CODE_CLASS (code) == '<')
-    {
-      mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0)));
-      if (GET_MODE_CLASS (mode) == MODE_INT
-	  && mode > MAX_INTEGER_COMPUTATION_MODE)
-	internal_error ("unsupported wide integer operation");
-
-      mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 1)));
-      if (GET_MODE_CLASS (mode) == MODE_INT
-	  && mode > MAX_INTEGER_COMPUTATION_MODE)
-	internal_error ("unsupported wide integer operation");
-    }
-}
-#endif
 
 /* Return the highest power of two that EXP is known to be a multiple of.
    This is used in updating alignment of MEMs in array references.  */
@@ -6300,49 +6246,6 @@ expand_expr (tree exp, rtx target, enum machine_mode tmode,
       target = 0;
     }
 
-#ifdef MAX_INTEGER_COMPUTATION_MODE
-  /* Only check stuff here if the mode we want is different from the mode
-     of the expression; if it's the same, check_max_integer_computation_mode
-     will handle it.  Do we really need to check this stuff at all?  */
-
-  if (target
-      && GET_MODE (target) != mode
-      && TREE_CODE (exp) != INTEGER_CST
-      && TREE_CODE (exp) != PARM_DECL
-      && TREE_CODE (exp) != ARRAY_REF
-      && TREE_CODE (exp) != ARRAY_RANGE_REF
-      && TREE_CODE (exp) != COMPONENT_REF
-      && TREE_CODE (exp) != BIT_FIELD_REF
-      && TREE_CODE (exp) != INDIRECT_REF
-      && TREE_CODE (exp) != CALL_EXPR
-      && TREE_CODE (exp) != VAR_DECL
-      && TREE_CODE (exp) != RTL_EXPR)
-    {
-      enum machine_mode mode = GET_MODE (target);
-
-      if (GET_MODE_CLASS (mode) == MODE_INT
-	  && mode > MAX_INTEGER_COMPUTATION_MODE)
-	internal_error ("unsupported wide integer operation");
-    }
-
-  if (tmode != mode
-      && TREE_CODE (exp) != INTEGER_CST
-      && TREE_CODE (exp) != PARM_DECL
-      && TREE_CODE (exp) != ARRAY_REF
-      && TREE_CODE (exp) != ARRAY_RANGE_REF
-      && TREE_CODE (exp) != COMPONENT_REF
-      && TREE_CODE (exp) != BIT_FIELD_REF
-      && TREE_CODE (exp) != INDIRECT_REF
-      && TREE_CODE (exp) != VAR_DECL
-      && TREE_CODE (exp) != CALL_EXPR
-      && TREE_CODE (exp) != RTL_EXPR
-      && GET_MODE_CLASS (tmode) == MODE_INT
-      && tmode > MAX_INTEGER_COMPUTATION_MODE)
-    internal_error ("unsupported wide integer operation");
-
-  check_max_integer_computation_mode (exp);
-#endif
-
   /* If will do cse, generate all results into pseudo registers
      since 1) that allows cse to find more things
      and 2) otherwise cse could produce an insn the machine
diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index aea2e08..3da0ebf 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -5205,9 +5205,6 @@ fold (tree expr)
   if (kind == 'c')
     return t;
 
-#ifdef MAX_INTEGER_COMPUTATION_MODE
-  check_max_integer_computation_mode (expr);
-#endif
   orig_t = t;
 
   if (code == NOP_EXPR || code == FLOAT_EXPR || code == CONVERT_EXPR)
diff --git a/gcc/system.h b/gcc/system.h
index f8295f1..8b0b38a 100644
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -620,7 +620,7 @@ typedef char _Bool;
 	INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT	   \
 	EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER	   \
 	LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES	   \
-	LOAD_ARGS_REVERSED
+	LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE
 
 /* Hooks that are no longer used.  */
  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE	\