alias.c (argument_registers): Remove.

	* alias.c (argument_registers): Remove.
	(init_alias_once): Initialize static_reg_base_value here.  Remove
	initialization of argument_registers.
	(init_alias_once_per_function): Remove.
	(init_alias_analysis): Copy all the entries from static_reg_base_value
	into new_reg_base_value all at once.
	* rtl.h (init_alias_once_per_function): Remove declaration.
	* function.c (prepare_function_start): Do not call
	init_alias_once_per_function.

	* caller-save.c (init_caller_save): Use gen_rtx_INSN instead of
	starting a sequence and emitting an INSN.

From-SVN: r54582

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2804059..dfca31f 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,18 @@
+2002-06-13  Jeffrey Law  <law@redhat.com>
+
+       * alias.c (argument_registers): Remove.
+       (init_alias_once): Initialize static_reg_base_value here.  Remove
+       initialization of argument_registers.
+       (init_alias_once_per_function): Remove.
+       (init_alias_analysis): Copy all the entries from static_reg_base_value
+       into new_reg_base_value all at once.
+       * rtl.h (init_alias_once_per_function): Remove declaration.
+       * function.c (prepare_function_start): Do not call
+       init_alias_once_per_function.
+
+       * caller-save.c (init_caller_save): Use gen_rtx_INSN instead of
+       starting a sequence and emitting an INSN.
+
 2002-06-13  Richard Sandiford  <rsandifo@redhat.com>
 
        * config/mips/r3900.h (MIPS_CPU_STRING_DEFAULT): Make lower case.

diff --git a/gcc/alias.c b/gcc/alias.c
index 4969aa6..d892926 100644 (file)
--- a/gcc/alias.c
+++ b/gcc/alias.c
@@ -2621,8 +2621,6 @@ mark_constant_function ()
 }
 \f
 
-static HARD_REG_SET argument_registers;
-
 void
 init_alias_once ()
 {
@@ -2637,36 +2635,9 @@ init_alias_once ()
        numbers, so translate if necessary due to register windows.  */
     if (FUNCTION_ARG_REGNO_P (OUTGOING_REGNO (i))
        && HARD_REGNO_MODE_OK (i, Pmode))
-      SET_HARD_REG_BIT (argument_registers, i);
-
-  alias_sets = splay_tree_new (splay_tree_compare_ints, 0, 0);
-}
-
-/* Per-function initializer for the aliasing code.
-
-   Allocate RTL for argument and other special use registers once
-   per function here intead of multiple times per function in 
-   init_alias_analysis.  */
-
-void
-init_alias_once_per_function ()
-{
-  int i;
-
-  /* Generate and mark all hard registers which may contain an address.
-     The stack, frame and argument pointers may contain an address.
-     An argument register which can hold a Pmode value may contain
-     an address even if it is not in BASE_REGS.
-
-     The address expression is VOIDmode for an argument and
-     Pmode for other registers.  */
-
-  for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
-    if (TEST_HARD_REG_BIT (argument_registers, i))
       static_reg_base_value[i]
        = gen_rtx_ADDRESS (VOIDmode, gen_rtx_REG (Pmode, i));
 
-
   static_reg_base_value[STACK_POINTER_REGNUM]
     = gen_rtx_ADDRESS (Pmode, stack_pointer_rtx);
   static_reg_base_value[ARG_POINTER_REGNUM]
@@ -2677,6 +2648,8 @@ init_alias_once_per_function ()
   static_reg_base_value[HARD_FRAME_POINTER_REGNUM]
     = gen_rtx_ADDRESS (Pmode, hard_frame_pointer_rtx);
 #endif
+
+  alias_sets = splay_tree_new (splay_tree_compare_ints, 0, 0);
 }
 
 /* Initialize the aliasing machinery.  Initialize the REG_KNOWN_VALUE
@@ -2764,20 +2737,9 @@ init_alias_analysis ()
         The address expression is VOIDmode for an argument and
         Pmode for other registers.  */
 
-      for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
-       if (TEST_HARD_REG_BIT (argument_registers, i))
-         new_reg_base_value[i] = static_reg_base_value[i];
+      memcpy (new_reg_base_value, static_reg_base_value,
+             FIRST_PSEUDO_REGISTER * sizeof (rtx));
 
-      new_reg_base_value[STACK_POINTER_REGNUM]
-       = static_reg_base_value[STACK_POINTER_REGNUM];
-      new_reg_base_value[ARG_POINTER_REGNUM]
-       = static_reg_base_value[ARG_POINTER_REGNUM];
-      new_reg_base_value[FRAME_POINTER_REGNUM]
-       = static_reg_base_value[FRAME_POINTER_REGNUM];
-#if HARD_FRAME_POINTER_REGNUM != FRAME_POINTER_REGNUM
-      new_reg_base_value[HARD_FRAME_POINTER_REGNUM]
-       = static_reg_base_value[HARD_FRAME_POINTER_REGNUM];
-#endif
       /* Walk the insns adding values to the new_reg_base_value array.  */
       for (insn = get_insns (); insn; insn = NEXT_INSN (insn))
        {

diff --git a/gcc/caller-save.c b/gcc/caller-save.c
index bc42c3a..b7e3cea 100644 (file)
--- a/gcc/caller-save.c
+++ b/gcc/caller-save.c
@@ -192,10 +192,8 @@ init_caller_save ()
   savepat = gen_rtx_SET (VOIDmode, test_mem, test_reg);
   restpat = gen_rtx_SET (VOIDmode, test_reg, test_mem);
 
-  start_sequence ();
-
-  saveinsn = emit_insn (savepat);
-  restinsn = emit_insn (restpat);
+  saveinsn = gen_rtx_INSN (VOIDmode, 0, 0, 0, 0, 0, savepat, -1, 0, 0);
+  restinsn = gen_rtx_INSN (VOIDmode, 0, 0, 0, 0, 0, restpat, -1, 0, 0);
 
   for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
     for (mode = 0 ; mode < MAX_MACHINE_MODE; mode++)
@@ -251,8 +249,6 @@ init_caller_save ()
              SET_HARD_REG_BIT (call_fixed_reg_set, i);
            }
        }
-
-  end_sequence ();
 }
 \f
 /* Initialize save areas by showing that we haven't allocated any yet.  */

diff --git a/gcc/function.c b/gcc/function.c
index 56c66c6..9530677 100644 (file)
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -6210,9 +6210,6 @@ prepare_function_start ()
   /* Initialize the RTL mechanism.  */
   init_emit ();
 
-  /* Do per-function initialization of the alias analyzer.  */
-  init_alias_once_per_function ();
-
   /* Initialize the queue of pending postincrement and postdecrements,
      and some other info in expr.c.  */
   init_expr ();

diff --git a/gcc/rtl.h b/gcc/rtl.h
index 8e05066..57a0be4 100644 (file)
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -2160,7 +2160,6 @@ extern int anti_dependence                PARAMS ((rtx, rtx));
 extern int output_dependence           PARAMS ((rtx, rtx));
 extern void mark_constant_function     PARAMS ((void));
 extern void init_alias_once            PARAMS ((void));
-extern void init_alias_once_per_function PARAMS ((void));
 extern void init_alias_analysis                PARAMS ((void));
 extern void end_alias_analysis         PARAMS ((void));
 extern rtx addr_side_effect_eval       PARAMS ((rtx, int, int));