* targhooks.c (GO_IF_MODE_DEPENDENT_ADDRESS): Use CONST_CAST_RTX.

[pf3gnuchains/gcc-fork.git] / gcc / targhooks.c

diff --git a/gcc/targhooks.c b/gcc/targhooks.c
index dfc470c..da84019 100644 (file)
--- a/gcc/targhooks.c
+++ b/gcc/targhooks.c
@@ -1,5 +1,5 @@
 /* Default target hook functions.
-   Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009
+   Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -396,7 +396,7 @@ default_fixed_point_supported_p (void)
 
 /* NULL if INSN insn is valid within a low-overhead loop, otherwise returns
    an error message.
-  
+
    This function checks whether a given INSN is valid within a low-overhead
    loop.  If INSN is invalid it returns the reason for that, otherwise it
    returns NULL. A called function may clobber any special registers required
@@ -409,17 +409,17 @@ default_invalid_within_doloop (const_rtx insn)
 {
   if (CALL_P (insn))
     return "Function call in loop.";
-  
+
   if (JUMP_TABLE_DATA_P (insn))
     return "Computed branch in the loop.";
-  
+
   return NULL;
 }
 
 /* Mapping of builtin functions to vectorized variants.  */
 
 tree
-default_builtin_vectorized_function (unsigned int fn ATTRIBUTE_UNUSED,
+default_builtin_vectorized_function (tree fndecl ATTRIBUTE_UNUSED,
                                     tree type_out ATTRIBUTE_UNUSED,
                                     tree type_in ATTRIBUTE_UNUSED)
 {
@@ -430,7 +430,8 @@ default_builtin_vectorized_function (unsigned int fn ATTRIBUTE_UNUSED,
 
 tree
 default_builtin_vectorized_conversion (unsigned int code ATTRIBUTE_UNUSED,
-                                      tree type ATTRIBUTE_UNUSED)
+                                      tree dest_type ATTRIBUTE_UNUSED,
+                                      tree src_type ATTRIBUTE_UNUSED)
 {
   return NULL_TREE;
 }
@@ -472,7 +473,7 @@ hook_int_CUMULATIVE_ARGS_mode_tree_bool_0 (
   return 0;
 }
 
-void 
+void
 hook_void_bitmap (bitmap regs ATTRIBUTE_UNUSED)
 {
 }
@@ -498,6 +499,8 @@ default_stack_protect_guard (void)
 
   if (t == NULL)
     {
+      rtx x;
+
       t = build_decl (UNKNOWN_LOCATION,
                      VAR_DECL, get_identifier ("__stack_chk_guard"),
                      ptr_type_node);
@@ -509,6 +512,11 @@ default_stack_protect_guard (void)
       DECL_ARTIFICIAL (t) = 1;
       DECL_IGNORED_P (t) = 1;
 
+      /* Do not share RTL as the declaration is visible outside of
+        current function.  */
+      x = DECL_RTL (t);
+      RTX_FLAG (x, used) = 1;
+
       stack_chk_guard_decl = t;
     }
 
@@ -517,7 +525,7 @@ default_stack_protect_guard (void)
 
 static GTY(()) tree stack_chk_fail_decl;
 
-tree 
+tree
 default_external_stack_protect_fail (void)
 {
   tree t = stack_chk_fail_decl;
@@ -618,6 +626,18 @@ default_libcall_value (enum machine_mode mode ATTRIBUTE_UNUSED,
 #endif
 }
 
+/* The default hook for TARGET_FUNCTION_VALUE_REGNO_P.  */
+
+bool
+default_function_value_regno_p (const unsigned int regno ATTRIBUTE_UNUSED)
+{
+#ifdef FUNCTION_VALUE_REGNO_P
+  return FUNCTION_VALUE_REGNO_P (regno);
+#else
+  gcc_unreachable ();
+#endif
+}
+
 rtx
 default_internal_arg_pointer (void)
 {
@@ -815,7 +835,7 @@ default_builtin_vector_alignment_reachable (const_tree type, bool is_packed)
 }
 
 /* By default, assume that a target supports any factor of misalignment
-   memory access if it supports movmisalign patten. 
+   memory access if it supports movmisalign patten.
    is_packed is true if the memory access is defined in a packed struct.  */
 bool
 default_builtin_support_vector_misalignment (enum machine_mode mode,
@@ -938,6 +958,26 @@ default_hard_regno_scratch_ok (unsigned int regno ATTRIBUTE_UNUSED)
   return true;
 }
 
+/* The default implementation of TARGET_MODE_DEPENDENT_ADDRESS_P.  */
+
+bool
+default_mode_dependent_address_p (const_rtx addr ATTRIBUTE_UNUSED)
+{
+#ifdef GO_IF_MODE_DEPENDENT_ADDRESS
+
+  GO_IF_MODE_DEPENDENT_ADDRESS (CONST_CAST_RTX (addr), win);
+  return false;
+  /* Label `win' might (not) be used via GO_IF_MODE_DEPENDENT_ADDRESS.  */
+ win: ATTRIBUTE_UNUSED_LABEL
+  return true;
+
+#else
+
+  return false;
+
+#endif
+}
+
 bool
 default_target_option_valid_attribute_p (tree ARG_UNUSED (fndecl),
                                         tree ARG_UNUSED (name),