i386.c (type_natural_mode): Use gcc_unreachable and gcc_assert instead of abort.

	* config/i386/i386.c (type_natural_mode): Use gcc_unreachable and
	gcc_assert instead of abort.
	(classify_argument, examine_argument, construct_container,
	contains_128bit_aligned_vector_p, ix86_check_movabs,
	standard_80387_constant_opcode, standard_80387_constant_rtx,
	ix86_initial_elimination_offset, ix86_compute_frame_layout,
	pro_epilogue_adjust_stack, ix86_expand_epilogue,
	ix86_address_cost, legitimate_address_p, legitimize_pic_address,
	legitimize_tls_address, output_pic_addr_const,
	i386_output_dwarf_dtprel, put_condition_code, print_reg,
	get_some_local_dynamic_name, print_operand, print_operand_address,
	output_387_binary_op, emit_i387_cw_initialization,
	output_fix_trunc, output_fp_compare, ix86_output_addr_vec_elt,
	ix86_expand_clear, ix86_expand_binary_operator,
	ix86_expand_unary_operator, ix86_match_ccmode, ix86_cc_mode,
	ix86_cc_modes_compatible, ix86_fp_comparison_codes,
	ix86_fp_comparison_arithmetics_cost, ix86_expand_fp_compare,
	ix86_expand_branch, ix86_expand_setcc,
	ix86_expand_carry_flag_compare, ix86_expand_fp_movcc,
	ix86_expand_int_addcc, ix86_split_to_parts, ix86_split_long_move,
	ix86_expand_movmem, ix86_expand_call, assign_386_stack_local,
	memory_address_length, ix86_attr_length_immediate_default,
	ix86_attr_length_address_default, ix86_agi_dependant,
	x86_initialize_trampoline, ix86_init_mmx_sse_builtins,
	ix86_expand_binop_builtin, ix86_force_to_memory,
	ix86_secondary_memory_needed, ix86_avoid_jump_misspredicts,
	x86_emit_floatuns): Likewise.
	* config/i386/netware.c (gen_regparm_prefix,
	i386_nlm_strip_name_encoding): Likewise.
	* config/i386/winnt.c (i386_pe_mark_dllexport): Likewise.

From-SVN: r98500

gcc/ChangeLog

 2005-04-21  Nathan Sidwell  <nathan@codesourcery.com>
 
+	* config/i386/i386.c (type_natural_mode): Use gcc_unreachable and
+	gcc_assert instead of abort.
+	(classify_argument, examine_argument, construct_container,
+	contains_128bit_aligned_vector_p, ix86_check_movabs,
+	standard_80387_constant_opcode, standard_80387_constant_rtx,
+	ix86_initial_elimination_offset, ix86_compute_frame_layout,
+	pro_epilogue_adjust_stack, ix86_expand_epilogue,
+	ix86_address_cost, legitimate_address_p, legitimize_pic_address,
+	legitimize_tls_address, output_pic_addr_const,
+	i386_output_dwarf_dtprel, put_condition_code, print_reg,
+	get_some_local_dynamic_name, print_operand, print_operand_address,
+	output_387_binary_op, emit_i387_cw_initialization,
+	output_fix_trunc, output_fp_compare, ix86_output_addr_vec_elt,
+	ix86_expand_clear, ix86_expand_binary_operator,
+	ix86_expand_unary_operator, ix86_match_ccmode, ix86_cc_mode,
+	ix86_cc_modes_compatible, ix86_fp_comparison_codes,
+	ix86_fp_comparison_arithmetics_cost, ix86_expand_fp_compare,
+	ix86_expand_branch, ix86_expand_setcc,
+	ix86_expand_carry_flag_compare, ix86_expand_fp_movcc,
+	ix86_expand_int_addcc, ix86_split_to_parts, ix86_split_long_move,
+	ix86_expand_movmem, ix86_expand_call, assign_386_stack_local,
+	memory_address_length, ix86_attr_length_immediate_default,
+	ix86_attr_length_address_default, ix86_agi_dependant,
+	x86_initialize_trampoline, ix86_init_mmx_sse_builtins,
+	ix86_expand_binop_builtin, ix86_force_to_memory,
+	ix86_secondary_memory_needed, ix86_avoid_jump_misspredicts,
+	x86_emit_floatuns): Likewise.
+	* config/i386/netware.c (gen_regparm_prefix,
+	i386_nlm_strip_name_encoding): Likewise.
+	* config/i386/winnt.c (i386_pe_mark_dllexport): Likewise.
+
+2005-04-21  Nathan Sidwell  <nathan@codesourcery.com>
+
 	* optabs.c (gen_condiational_trap): Remove #define.
 	(add_equal_note): Assertify. Remove explicit indirection from
 	call via function pointer.

gcc/config/i386/netware.c

@@ -150,7 +150,7 @@ gen_regparm_prefix (tree decl, unsigned nregs)
 
   if (nregs > total / BITS_PER_WORD)
     nregs = total / BITS_PER_WORD;
-  if (nregs > 9) abort();
+  gcc_assert (nregs <= 9);
   newsym = alloca (2 + strlen (asmname) + 1 + 1);
   return IDENTIFIER_POINTER (get_identifier_with_length (newsym,
 	sprintf (newsym, "_%u@%s", nregs, asmname)));
@@ -201,8 +201,12 @@ i386_nlm_strip_name_encoding (const char *str)
 	  ++name;
 	  if (ISDIGIT (p[1]))
 	    name = ggc_alloc_string (name, p - name);
-	  else if (!ISDIGIT (*name) || ++name != p)
-	    abort();
+	  else
+	    {
+	      gcc_assert (ISDIGIT (*name));
+	      name++;
+	      gcc_assert (name == p);
+	    }
 	}
     }
   return name;

gcc/config/i386/winnt.c

@@ -273,13 +273,10 @@ i386_pe_mark_dllexport (tree decl)
   tree idp;
 
   rtlname = XEXP (DECL_RTL (decl), 0);
-  if (GET_CODE (rtlname) == SYMBOL_REF)
-    oldname = XSTR (rtlname, 0);
-  else if (GET_CODE (rtlname) == MEM
-	   && GET_CODE (XEXP (rtlname, 0)) == SYMBOL_REF)
-    oldname = XSTR (XEXP (rtlname, 0), 0);
-  else
-    abort ();
+  if (GET_CODE (rtlname) == MEM)
+    rtlname = XEXP (rtlname, 0);
+  gcc_assert (GET_CODE (rtlname) == SYMBOL_REF);
+  oldname = XSTR (rtlname, 0);
   if (i386_pe_dllimport_name_p (oldname))
     {
       warning ("%Jinconsistent dll linkage for '%D', dllexport assumed.",
@@ -317,13 +314,10 @@ i386_pe_mark_dllimport (tree decl)
   rtx symref;
 
   rtlname = XEXP (DECL_RTL (decl), 0);
-  if (GET_CODE (rtlname) == SYMBOL_REF)
-    oldname = XSTR (rtlname, 0);
-  else if (GET_CODE (rtlname) == MEM
-	   && GET_CODE (XEXP (rtlname, 0)) == SYMBOL_REF)
-    oldname = XSTR (XEXP (rtlname, 0), 0);
-  else
-    abort ();
+  if (GET_CODE (rtlname) == MEM)
+    rtlname = XEXP (rtlname, 0);
+  gcc_assert (GET_CODE (rtlname) == SYMBOL_REF);
+  oldname = XSTR (rtlname, 0);
   if (i386_pe_dllexport_name_p (oldname))
     {
       error ("%qs declared as both exported to and imported from a DLL",
@@ -332,14 +326,9 @@ i386_pe_mark_dllimport (tree decl)
     }
   else if (i386_pe_dllimport_name_p (oldname))
     {
-      /* Already done, but do a sanity check to prevent assembler errors.  */
-      if (!DECL_EXTERNAL (decl) || !TREE_PUBLIC (decl))
-	{
-	  error ("%Jfailure in redeclaration of '%D': dllimport'd "
-		 "symbol lacks external linkage.", decl, decl);
-	  abort();
-	}
-      return;
+      /* Already done, but do a sanity check to prevent assembler
+	 errors.  */
+      gcc_assert (DECL_EXTERNAL (decl) && TREE_PUBLIC (decl));
     }
 
   newname = alloca (strlen (DLL_IMPORT_PREFIX) + strlen (oldname) + 1);