SWitch use if {save|restore}_machine_status with {init|free}_machine_status

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38836 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b976645..01a368b 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,26 @@
+2001-01-09  Nick Clifton  <nickc@redhat.com>
+
+       * config/rs6000/rs6000.c (rs6000_sysv_varargs_p): Delete.
+       (setup_incoming_varargs): Use sysv_varargs_p field of the
+       cfun->machine structure.
+       (struct machine_function): Move to rs6000.h
+       (rs6000_save_machine_status): Delete.
+       (rs6000_restore_machine_status): Delete.
+       (rs6000_init_machine_status): New Function.
+       (rs6000_free_machine_status): New Function.
+       (rs6000_init_expanders): Use new functions.
+
+       * config/rs6000/rs6000.h (rs6000_sysv_varargs_p): Delete
+       export.
+       (struct machine_function): Move here.
+
+       * config/rs6000/sysv4.h (RS6000_VARARGS_AREA): Use
+       sysv_varargs_p field of the cfun->machine structure.
+
+       * config/rs6000/rs6000-protos.h (rs6000_save_machine_status):
+       Remove prototype.
+       (rs6000_restore_machine_status): Remove prototype.
+

 2001-01-09  Richard Henderson  <rth@redhat.com>
 
        * sched-int.h (struct deps): Add max_reg, reg_last_in_use; merge
 2001-01-09  Richard Henderson  <rth@redhat.com>
 
        * sched-int.h (struct deps): Add max_reg, reg_last_in_use; merge

diff --git a/gcc/config/d30v/d30v.c b/gcc/config/d30v/d30v.c
index 749aa1b..3c02f10 100644 (file)
--- a/gcc/config/d30v/d30v.c
+++ b/gcc/config/d30v/d30v.c
@@ -52,16 +52,9 @@ static void d30v_add_gc_roots PARAMS ((void));
 struct rtx_def *d30v_compare_op0;
 struct rtx_def *d30v_compare_op1;
 
 struct rtx_def *d30v_compare_op0;
 struct rtx_def *d30v_compare_op1;
 

-/* Define the information needed to modify the epilogue for EH.  */
-
-rtx d30v_eh_epilogue_sp_ofs;
-

 /* Cached value of d30v_stack_info */
 static d30v_stack_t *d30v_stack_cache = (d30v_stack_t *)0;
 
 /* Cached value of d30v_stack_info */
 static d30v_stack_t *d30v_stack_cache = (d30v_stack_t *)0;
 

-/* Cache for __builtin_return_addr */
-static rtx d30v_return_addr_rtx;
-

 /* Values of the -mbranch-cost=n string.  */
 int d30v_branch_cost = D30V_DEFAULT_BRANCH_COST;
 const char *d30v_branch_cost_string = (const char *)0;
 /* Values of the -mbranch-cost=n string.  */
 int d30v_branch_cost = D30V_DEFAULT_BRANCH_COST;
 const char *d30v_branch_cost_string = (const char *)0;


@@ -2594,7 +2587,7 @@ d30v_expand_epilogue ()
   for (i = GPR_FIRST; i <= GPR_LAST; i++)
     if (info->save_p[i] == 1)
       {
   for (i = GPR_FIRST; i <= GPR_LAST; i++)
     if (info->save_p[i] == 1)
       {

-       if (d30v_eh_epilogue_sp_ofs && i == GPR_LINK)
+       if (cfun->machine->eh_epilogue_sp_ofs && i == GPR_LINK)

          extra_stack = 4;
        else
          {
          extra_stack = 4;
        else
          {


@@ -2615,15 +2608,15 @@ d30v_expand_epilogue ()
 
   if (extra_stack)
     {
 
   if (extra_stack)
     {

-      if (d30v_eh_epilogue_sp_ofs)
-       emit_insn (gen_addsi3 (d30v_eh_epilogue_sp_ofs,
-                              d30v_eh_epilogue_sp_ofs,
+      if (cfun->machine->eh_epilogue_sp_ofs)
+       emit_insn (gen_addsi3 (cfun->machine->eh_epilogue_sp_ofs,
+                              cfun->machine->eh_epilogue_sp_ofs,

                               GEN_INT (extra_stack)));
       else
         emit_insn (gen_addsi3 (sp, sp, GEN_INT (extra_stack)));
     }
                               GEN_INT (extra_stack)));
       else
         emit_insn (gen_addsi3 (sp, sp, GEN_INT (extra_stack)));
     }

-  if (d30v_eh_epilogue_sp_ofs)
-    emit_insn (gen_addsi3 (sp, sp, d30v_eh_epilogue_sp_ofs));
+  if (cfun->machine->eh_epilogue_sp_ofs)
+    emit_insn (gen_addsi3 (sp, sp, cfun->machine->eh_epilogue_sp_ofs));

 
   /* Now emit the return instruction.  */
   emit_jump_insn (gen_rtx_RETURN (VOIDmode));
 
   /* Now emit the return instruction.  */
   emit_jump_insn (gen_rtx_RETURN (VOIDmode));


@@ -3595,34 +3588,39 @@ d30v_adjust_cost (insn, link, dep_insn, cost)
 }
 
 \f
 }
 
 \f

-/* Functions to save and restore d30v_return_addr_rtx.  */
-
-struct machine_function
-{
-  rtx ra_rtx;
-};
+/* Routine to allocate, mark and free a per-function,
+   machine specific structure.  */

 
 static void
 
 static void

-d30v_save_machine_status (p)
+d30v_init_machine_status (p)

      struct function *p;
 {
      struct function *p;
 {

-  struct machine_function *machine =
+  p->machine =

     (struct machine_function *) xmalloc (sizeof (struct machine_function));
     (struct machine_function *) xmalloc (sizeof (struct machine_function));

+}

 
 

-  p->machine = machine;
-  machine->ra_rtx = d30v_return_addr_rtx;
+static void
+d30v_mark_machine_status (p)
+     struct function * p;
+{
+  if (p->machine == NULL)
+    return;
+  
+  ggc_mark_rtx (p->machine->ra_rtx);
+  ggc_mark_rtx (p->machine->eh_epilogue_sp_ofs);

 }
 
 static void
 }
 
 static void

-d30v_restore_machine_status (p)
+d30v_free_machine_status (p)

      struct function *p;
 {
   struct machine_function *machine = p->machine;
 
      struct function *p;
 {
   struct machine_function *machine = p->machine;
 

-  d30v_return_addr_rtx = machine->ra_rtx;
+  if (machine == NULL)
+    return;

 
   free (machine);
 
   free (machine);

-  p->machine = (struct machine_function *)0;
+  p->machine = NULL;

 }
 
 /* Do anything needed before RTL is emitted for each function.  */
 }
 
 /* Do anything needed before RTL is emitted for each function.  */


@@ -3630,12 +3628,10 @@ d30v_restore_machine_status (p)
 void
 d30v_init_expanders ()
 {
 void
 d30v_init_expanders ()
 {

-  d30v_return_addr_rtx = NULL_RTX;
-  d30v_eh_epilogue_sp_ofs = NULL_RTX;
-

   /* Arrange to save and restore machine status around nested functions.  */
   /* Arrange to save and restore machine status around nested functions.  */

-  save_machine_status = d30v_save_machine_status;
-  restore_machine_status = d30v_restore_machine_status;
+  init_machine_status = d30v_init_machine_status;
+  mark_machine_status = d30v_mark_machine_status;
+  free_machine_status = d30v_free_machine_status;

 }
 
 /* Find the current function's return address.
 }
 
 /* Find the current function's return address.


@@ -3650,11 +3646,13 @@ d30v_return_addr ()
 {
   rtx ret;
 
 {
   rtx ret;
 

-  if ((ret = d30v_return_addr_rtx) == NULL)
+  ret = cfun->machine->ra_rtx;
+  
+  if (ret == NULL)

     {
       rtx init;
 
     {
       rtx init;
 

-      d30v_return_addr_rtx = ret = gen_reg_rtx (Pmode);
+      cfun->machine->ra_rtx = ret = gen_reg_rtx (Pmode);

 
       init = gen_rtx (SET, VOIDmode, ret, gen_rtx (REG, Pmode, GPR_LINK));
       push_topmost_sequence ();
 
       init = gen_rtx (SET, VOIDmode, ret, gen_rtx (REG, Pmode, GPR_LINK));
       push_topmost_sequence ();


@@ -3673,6 +3671,4 @@ d30v_add_gc_roots ()
 {
   ggc_add_rtx_root (&d30v_compare_op0, 1);
   ggc_add_rtx_root (&d30v_compare_op1, 1);
 {
   ggc_add_rtx_root (&d30v_compare_op0, 1);
   ggc_add_rtx_root (&d30v_compare_op1, 1);

-  ggc_add_rtx_root (&d30v_eh_epilogue_sp_ofs, 1);
-  ggc_add_rtx_root (&d30v_return_addr_rtx, 1);

 }
 }

diff --git a/gcc/config/d30v/d30v.h b/gcc/config/d30v/d30v.h
index 0792b07..890639a 100644 (file)
--- a/gcc/config/d30v/d30v.h
+++ b/gcc/config/d30v/d30v.h
@@ -2870,6 +2870,16 @@ typedef int CUMULATIVE_ARGS;
    varargs.  */
 /* #define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) */
 
    varargs.  */
 /* #define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) */
 

+/* A C structure for machine-specific, per-function data.
+   This is added to the cfun structure.  */
+typedef struct machine_function
+{
+  /* Additionsl stack adjustment in __builtin_eh_throw.  */
+  struct rtx_def * eh_epilogue_sp_ofs;
+  /* Records __builtin_return address.  */
+  struct rtx_def * ra_rtx;
+} machine_function;
+

 \f
 /* Generating Code for Profiling.  */
 
 \f
 /* Generating Code for Profiling.  */
 

diff --git a/gcc/config/d30v/d30v.md b/gcc/config/d30v/d30v.md
index 8034b02..5892a1a 100644 (file)
--- a/gcc/config/d30v/d30v.md
+++ b/gcc/config/d30v/d30v.md
@@ -2971,7 +2971,7 @@
   ""
   "
 {
   ""
   "
 {

-  d30v_eh_epilogue_sp_ofs = operands[1];
+  cfun->machine->eh_epilogue_sp_ofs = operands[1];

   if (GET_CODE (operands[2]) != REG || REGNO (operands[2]) != GPR_LINK)
     {
       rtx ra = gen_rtx_REG (Pmode, GPR_LINK);
   if (GET_CODE (operands[2]) != REG || REGNO (operands[2]) != GPR_LINK)
     {
       rtx ra = gen_rtx_REG (Pmode, GPR_LINK);