Imported from /home/lorry/working-area/delta_gcc-tarball/gcc-4.7.3.tar.bz2.gcc-4.7.3

1 files changed, 53 insertions, 116 deletions

diff --git a/gcc/targhooks.c b/gcc/targhooks.c
index 225831b951..7889282d51 100644
--- a/gcc/targhooks.c
+++ b/gcc/targhooks.c
@@ -1,5 +1,5 @@
 /* Default target hook functions.
-   Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010
+   Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -124,7 +124,7 @@ default_promote_function_mode (const_tree type ATTRIBUTE_UNUSED,
 			       const_tree funtype ATTRIBUTE_UNUSED,
 			       int for_return ATTRIBUTE_UNUSED)
 {
-  if (for_return == 2)
+  if (type != NULL_TREE && for_return == 2)
     return promote_mode (type, mode, punsignedp);
   return mode;
 }
@@ -170,7 +170,7 @@ default_expand_builtin_saveregs (void)
 }
 
 void
-default_setup_incoming_varargs (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED,
+default_setup_incoming_varargs (cumulative_args_t ca ATTRIBUTE_UNUSED,
 				enum machine_mode mode ATTRIBUTE_UNUSED,
 				tree type ATTRIBUTE_UNUSED,
 				int *pretend_arg_size ATTRIBUTE_UNUSED,
@@ -189,13 +189,13 @@ default_builtin_setjmp_frame_value (void)
 /* Generic hook that takes a CUMULATIVE_ARGS pointer and returns false.  */
 
 bool
-hook_bool_CUMULATIVE_ARGS_false (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED)
+hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t ca ATTRIBUTE_UNUSED)
 {
   return false;
 }
 
 bool
-default_pretend_outgoing_varargs_named (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED)
+default_pretend_outgoing_varargs_named (cumulative_args_t ca ATTRIBUTE_UNUSED)
 {
   return (targetm.calls.setup_incoming_varargs
 	  != default_setup_incoming_varargs);
@@ -253,7 +253,7 @@ default_mode_rep_extended (enum machine_mode mode ATTRIBUTE_UNUSED,
 /* Generic hook that takes a CUMULATIVE_ARGS pointer and returns true.  */
 
 bool
-hook_bool_CUMULATIVE_ARGS_true (CUMULATIVE_ARGS * a ATTRIBUTE_UNUSED)
+hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t a ATTRIBUTE_UNUSED)
 {
   return true;
 }
@@ -302,7 +302,7 @@ default_cxx_get_cookie_size (tree type)
    of the TARGET_PASS_BY_REFERENCE hook uses just MUST_PASS_IN_STACK.  */
 
 bool
-hook_pass_by_reference_must_pass_in_stack (CUMULATIVE_ARGS *c ATTRIBUTE_UNUSED,
+hook_pass_by_reference_must_pass_in_stack (cumulative_args_t c ATTRIBUTE_UNUSED,
 	enum machine_mode mode ATTRIBUTE_UNUSED, const_tree type ATTRIBUTE_UNUSED,
 	bool named_arg ATTRIBUTE_UNUSED)
 {
@@ -313,7 +313,7 @@ hook_pass_by_reference_must_pass_in_stack (CUMULATIVE_ARGS *c ATTRIBUTE_UNUSED,
    version of the hook is true for all named arguments.  */
 
 bool
-hook_callee_copies_named (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED,
+hook_callee_copies_named (cumulative_args_t ca ATTRIBUTE_UNUSED,
 			  enum machine_mode mode ATTRIBUTE_UNUSED,
 			  const_tree type ATTRIBUTE_UNUSED, bool named)
 {
@@ -371,21 +371,6 @@ default_mangle_assembler_name (const char *name ATTRIBUTE_UNUSED)
   return get_identifier (stripped);
 }
 
-/* The default implementation of TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA.  */
-
-bool
-default_asm_output_addr_const_extra (FILE *file ATTRIBUTE_UNUSED,
-				     rtx x ATTRIBUTE_UNUSED)
-{
-#ifdef OUTPUT_ADDR_CONST_EXTRA
-  OUTPUT_ADDR_CONST_EXTRA (file, x, fail);
-  return true;
-
-fail:
-#endif
-  return false;
-}
-
 /* True if MODE is valid for the target.  By "valid", we mean able to
    be manipulated in non-trivial ways.  In particular, this means all
    the arithmetic is supported.
@@ -529,6 +514,7 @@ default_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
       case scalar_to_vec:
       case cond_branch_not_taken:
       case vec_perm:
+      case vec_promote_demote:
         return 1;
 
       case unaligned_load:
@@ -555,7 +541,7 @@ default_builtin_reciprocal (unsigned int fn ATTRIBUTE_UNUSED,
 
 bool
 hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false (
-	CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED,
+	cumulative_args_t ca ATTRIBUTE_UNUSED,
 	enum machine_mode mode ATTRIBUTE_UNUSED,
 	const_tree type ATTRIBUTE_UNUSED, bool named ATTRIBUTE_UNUSED)
 {
@@ -564,7 +550,7 @@ hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false (
 
 bool
 hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true (
-	CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED,
+	cumulative_args_t ca ATTRIBUTE_UNUSED,
 	enum machine_mode mode ATTRIBUTE_UNUSED,
 	const_tree type ATTRIBUTE_UNUSED, bool named ATTRIBUTE_UNUSED)
 {
@@ -573,7 +559,7 @@ hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true (
 
 int
 hook_int_CUMULATIVE_ARGS_mode_tree_bool_0 (
-	CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED,
+	cumulative_args_t ca ATTRIBUTE_UNUSED,
 	enum machine_mode mode ATTRIBUTE_UNUSED,
 	tree type ATTRIBUTE_UNUSED, bool named ATTRIBUTE_UNUSED)
 {
@@ -581,44 +567,30 @@ hook_int_CUMULATIVE_ARGS_mode_tree_bool_0 (
 }
 
 void
-default_function_arg_advance (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED,
+default_function_arg_advance (cumulative_args_t ca ATTRIBUTE_UNUSED,
 			      enum machine_mode mode ATTRIBUTE_UNUSED,
 			      const_tree type ATTRIBUTE_UNUSED,
 			      bool named ATTRIBUTE_UNUSED)
 {
-#ifdef FUNCTION_ARG_ADVANCE
-  CUMULATIVE_ARGS args = *ca;
-  FUNCTION_ARG_ADVANCE (args, mode, CONST_CAST_TREE (type), named);
-  *ca = args;
-#else
   gcc_unreachable ();
-#endif
 }
 
 rtx
-default_function_arg (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED,
+default_function_arg (cumulative_args_t ca ATTRIBUTE_UNUSED,
 		      enum machine_mode mode ATTRIBUTE_UNUSED,
 		      const_tree type ATTRIBUTE_UNUSED,
 		      bool named ATTRIBUTE_UNUSED)
 {
-#ifdef FUNCTION_ARG
-  return FUNCTION_ARG (*ca, mode, CONST_CAST_TREE (type), named);
-#else
   gcc_unreachable ();
-#endif
 }
 
 rtx
-default_function_incoming_arg (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED,
+default_function_incoming_arg (cumulative_args_t ca ATTRIBUTE_UNUSED,
 			       enum machine_mode mode ATTRIBUTE_UNUSED,
 			       const_tree type ATTRIBUTE_UNUSED,
 			       bool named ATTRIBUTE_UNUSED)
 {
-#ifdef FUNCTION_INCOMING_ARG
-  return FUNCTION_INCOMING_ARG (*ca, mode, CONST_CAST_TREE (type), named);
-#else
   gcc_unreachable ();
-#endif
 }
 
 unsigned int
@@ -628,6 +600,13 @@ default_function_arg_boundary (enum machine_mode mode ATTRIBUTE_UNUSED,
   return PARM_BOUNDARY;
 }
 
+unsigned int
+default_function_arg_round_boundary (enum machine_mode mode ATTRIBUTE_UNUSED,
+				     const_tree type ATTRIBUTE_UNUSED)
+{
+  return PARM_BOUNDARY;
+}
+
 void
 hook_void_bitmap (bitmap regs ATTRIBUTE_UNUSED)
 {
@@ -855,15 +834,6 @@ default_branch_target_register_class (void)
   return NO_REGS;
 }
 
-#ifdef IRA_COVER_CLASSES
-const reg_class_t *
-default_ira_cover_classes (void)
-{
-  static reg_class_t classes[] = IRA_COVER_CLASSES;
-  return classes;
-}
-#endif
-
 reg_class_t
 default_secondary_reload (bool in_p ATTRIBUTE_UNUSED, rtx x ATTRIBUTE_UNUSED,
 			  reg_class_t reload_class_i ATTRIBUTE_UNUSED,
@@ -893,8 +863,7 @@ default_secondary_reload (bool in_p ATTRIBUTE_UNUSED, rtx x ATTRIBUTE_UNUSED,
 				reload_mode);
 
       if (icode != CODE_FOR_nothing
-	  && insn_data[(int) icode].operand[in_p].predicate
-	  && ! insn_data[(int) icode].operand[in_p].predicate (x, reload_mode))
+	  && !insn_operand_matches (icode, in_p, x))
 	icode = CODE_FOR_nothing;
       else if (icode != CODE_FOR_nothing)
 	{
@@ -954,14 +923,6 @@ default_secondary_reload (bool in_p ATTRIBUTE_UNUSED, rtx x ATTRIBUTE_UNUSED,
   return rclass;
 }
 
-bool
-default_handle_c_option (size_t code ATTRIBUTE_UNUSED,
-			 const char *arg ATTRIBUTE_UNUSED,
-			 int value ATTRIBUTE_UNUSED)
-{
-  return false;
-}
-
 /* By default, if flag_pic is true, then neither local nor global relocs
    should be placed in readonly memory.  */
 
@@ -978,6 +939,13 @@ tree default_mangle_decl_assembler_name (tree decl ATTRIBUTE_UNUSED,
    return id;
 }
 
+/* Default to natural alignment for vector types.  */
+HOST_WIDE_INT
+default_vector_alignment (const_tree type)
+{
+  return tree_low_cst (TYPE_SIZE (type), 0);
+}
+
 bool
 default_builtin_vector_alignment_reachable (const_tree type, bool is_packed)
 {
@@ -1221,9 +1189,10 @@ default_target_can_inline_p (tree caller, tree callee)
   else if (!caller_opts)
     ret = false;
 
-  /* If both caller and callee have attributes, assume that if the pointer is
-     different, the the two functions have different target options since
-     build_target_option_node uses a hash table for the options.  */
+  /* If both caller and callee have attributes, assume that if the
+     pointer is different, the two functions have different target
+     options since build_target_option_node uses a hash table for the
+     options.  */
   else
     ret = (callee_opts == caller_opts);
 
@@ -1253,6 +1222,12 @@ default_have_conditional_execution (void)
 #endif
 }
 
+tree
+default_builtin_tm_load_store (tree ARG_UNUSED (type))
+{
+  return NULL_TREE;
+}
+
 /* Compute cost of moving registers to/from memory.  */
 
 int
@@ -1311,11 +1286,7 @@ reg_class_t
 default_preferred_output_reload_class (rtx x ATTRIBUTE_UNUSED,
 				       reg_class_t rclass)
 {
-#ifdef PREFERRED_OUTPUT_RELOAD_CLASS
-  return PREFERRED_OUTPUT_RELOAD_CLASS (x, (enum reg_class) rclass);
-#else
   return rclass;
-#endif
 }
 
 /* The default implementation of TARGET_PREFERRED_RENAME_CLASS.  */
@@ -1333,6 +1304,19 @@ default_class_likely_spilled_p (reg_class_t rclass)
   return (reg_class_size[(int) rclass] == 1);
 }
 
+/* The default implementation of TARGET_CLASS_MAX_NREGS.  */
+
+unsigned char
+default_class_max_nregs (reg_class_t rclass ATTRIBUTE_UNUSED,
+			 enum machine_mode mode ATTRIBUTE_UNUSED)
+{
+#ifdef CLASS_MAX_NREGS
+  return (unsigned char) CLASS_MAX_NREGS ((enum reg_class) rclass, mode);
+#else
+  return ((GET_MODE_SIZE (mode) + UNITS_PER_WORD - 1) / UNITS_PER_WORD);
+#endif
+}
+
 /* Determine the debugging unwind mechanism for the target.  */
 
 enum unwind_info_type
@@ -1354,48 +1338,6 @@ default_debug_unwind_info (void)
   return UI_NONE;
 }
 
-/* Determine the exception handling mechanism for the target.  */
-
-enum unwind_info_type
-default_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED)
-{
-  /* Obey the configure switch to turn on sjlj exceptions.  */
-#ifdef CONFIG_SJLJ_EXCEPTIONS
-  if (CONFIG_SJLJ_EXCEPTIONS)
-    return UI_SJLJ;
-#endif
-
-  /* ??? Change all users to the hook, then poison this.  */
-#ifdef DWARF2_UNWIND_INFO
-  if (DWARF2_UNWIND_INFO)
-    return UI_DWARF2;
-#endif
-
-  return UI_SJLJ;
-}
-
-/* To be used by targets that force dwarf2 unwind enabled.  */
-
-enum unwind_info_type
-dwarf2_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED)
-{
-  /* Obey the configure switch to turn on sjlj exceptions.  */
-#ifdef CONFIG_SJLJ_EXCEPTIONS
-  if (CONFIG_SJLJ_EXCEPTIONS)
-    return UI_SJLJ;
-#endif
-
-  return UI_DWARF2;
-}
-
-/* To be used by targets that force sjlj unwind enabled.  */
-
-enum unwind_info_type
-sjlj_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED)
-{
-  return UI_SJLJ;
-}
-
 /* To be used by targets where reg_raw_mode doesn't return the right
    mode for registers used in apply_builtin_return and apply_builtin_arg.  */
 
@@ -1514,9 +1456,4 @@ default_pch_valid_p (const void *data_p, size_t len)
   return NULL;
 }
 
-const struct default_options empty_optimization_table[] =
-  {
-    { OPT_LEVELS_NONE, 0, NULL, 0 }
-  };
-
 #include "gt-targhooks.h"