PR target/33286

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

diff --git a/gcc/alias.c b/gcc/alias.c
index 518164e..870fbc4 100644 (file)
--- a/gcc/alias.c
+++ b/gcc/alias.c
@@ -148,7 +148,7 @@ struct alias_set_entry GTY(())
 };
 typedef struct alias_set_entry *alias_set_entry;
 
-static int rtx_equal_for_memref_p (rtx, rtx);
+static int rtx_equal_for_memref_p (const_rtx, const_rtx);
 static int memrefs_conflict_p (int, rtx, int, rtx, HOST_WIDE_INT);
 static void record_set (rtx, const_rtx, void *);
 static int base_alias_check (rtx, rtx, enum machine_mode,
@@ -167,7 +167,7 @@ static rtx adjust_offset_for_component_ref (tree, rtx);
 static int nonoverlapping_memrefs_p (const_rtx, const_rtx);
 static int write_dependence_p (const_rtx, const_rtx, int);
 
-static void memory_modified_1 (rtx, const_rtx, void *);
+static void memory_modified_1 (const_rtx, const_rtx, const void *);
 static void record_alias_subset (alias_set_type, alias_set_type);
 
 /* Set up all info needed to perform alias analysis on memory references.  */
@@ -446,7 +446,7 @@ find_base_decl (tree t)
    assignable alias sets.  */
 
 bool
-component_uses_parent_alias_set (tree t)
+component_uses_parent_alias_set (const_tree t)
 {
   while (1)
     {
@@ -1192,7 +1192,7 @@ canon_rtx (rtx x)
    different numbers are, in fact, equivalent.  */
 
 static int
-rtx_equal_for_memref_p (rtx x, rtx y)
+rtx_equal_for_memref_p (const_rtx x, const_rtx y)
 {
   int i;
   int j;
@@ -1233,6 +1233,7 @@ rtx_equal_for_memref_p (rtx x, rtx y)
     case VALUE:
     case CONST_INT:
     case CONST_DOUBLE:
+    case CONST_FIXED:
       /* There's no need to compare the contents of CONST_DOUBLEs or
         CONST_INTs because pointer equality is a good enough
         comparison for these nodes.  */
@@ -2324,10 +2325,12 @@ output_dependence (const_rtx mem, const_rtx x)
 \f
 
 void
-init_alias_once (void)
+init_alias_target (void)
 {
   int i;
 
+  memset (static_reg_base_value, 0, sizeof static_reg_base_value);
+
   for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
     /* Check whether this register can hold an incoming pointer
        argument.  FUNCTION_ARG_REGNO_P tests outgoing register
@@ -2353,11 +2356,11 @@ init_alias_once (void)
    to be memory reference.  */
 static bool memory_modified;
 static void
-memory_modified_1 (rtx x, const_rtx pat ATTRIBUTE_UNUSED, void *data)
+memory_modified_1 (const_rtx x, const_rtx pat ATTRIBUTE_UNUSED, const void *data)
 {
   if (MEM_P (x))
     {
-      if (anti_dependence (x, (rtx)data) || output_dependence (x, (rtx)data))
+      if (anti_dependence (x, (const_rtx)data) || output_dependence (x, (const_rtx)data))
        memory_modified = true;
     }
 }
@@ -2366,12 +2369,12 @@ memory_modified_1 (rtx x, const_rtx pat ATTRIBUTE_UNUSED, void *data)
 /* Return true when INSN possibly modify memory contents of MEM
    (i.e. address can be modified).  */
 bool
-memory_modified_in_insn_p (rtx mem, rtx insn)
+memory_modified_in_insn_p (const_rtx mem, const_rtx insn)
 {
   if (!INSN_P (insn))
     return false;
   memory_modified = false;
-  note_stores (PATTERN (insn), memory_modified_1, mem);
+  const_note_stores (PATTERN (insn), memory_modified_1, mem);
   return memory_modified;
 }