rtl.h (clear_emit_caches): Delete.

2002-05-29  David S. Miller  <davem@redhat.com>

	* rtl.h (clear_emit_caches): Delete.
	* integrate.c (output_inline_function): Don't call it.
	* emit-rtl.c (restore_emit_status, init_emit): Likewise.
	(clear_emit_caches): Delete definition.
	(SEQUENCE_RESULT_SIZE, sequence_result, free_insn): Likewise.

From-SVN: r54053

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 290566436af77bfa79e2abb9b41643382e9bde96..03903a3ce25386b83663f01f086c3ed3a49f0a1a 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2002-05-29  David S. Miller  <davem@redhat.com>
+
+       * rtl.h (clear_emit_caches): Delete.
+       * integrate.c (output_inline_function): Don't call it.
+       * emit-rtl.c (restore_emit_status, init_emit): Likewise.
+       (clear_emit_caches): Delete definition.
+       (SEQUENCE_RESULT_SIZE, sequence_result, free_insn): Likewise.
+
 2002-05-30  Hans-Peter Nilsson  <hp@bitrange.com>
 
        * config/mmix/mmix.c: Include real.h.

diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index 963946a4ed868beed7c9e0b01169eb8a6a23ea5f..8f8f701e17b7f446730f44d6b1eedf526e99b378 100644 (file)
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -151,26 +151,6 @@ static htab_t mem_attrs_htab;
 /* A hash table storing all CONST_DOUBLEs.  */
 static htab_t const_double_htab;
 
-/* start_sequence and gen_sequence can make a lot of rtx expressions which are
-   shortly thrown away.  We use two mechanisms to prevent this waste:
-
-   For sizes up to 5 elements, we keep a SEQUENCE and its associated
-   rtvec for use by gen_sequence.  One entry for each size is
-   sufficient because most cases are calls to gen_sequence followed by
-   immediately emitting the SEQUENCE.  Reuse is safe since emitting a
-   sequence is destructive on the insn in it anyway and hence can't be
-   redone.
-
-   We do not bother to save this cached data over nested function calls.
-   Instead, we just reinitialize them.  */
-
-#define SEQUENCE_RESULT_SIZE 5
-
-static rtx sequence_result[SEQUENCE_RESULT_SIZE];
-
-/* During RTL generation, we also keep a list of free INSN rtl codes.  */
-static rtx free_insn;
-
 #define first_insn (cfun->emit->x_first_insn)
 #define last_insn (cfun->emit->x_last_insn)
 #define cur_insn_uid (cfun->emit->x_cur_insn_uid)
@@ -2256,7 +2236,6 @@ restore_emit_status (p)
      struct function *p ATTRIBUTE_UNUSED;
 {
   last_label_num = 0;
-  clear_emit_caches ();
 }
 
 /* Clear out all parts of the state in F that can safely be discarded
@@ -4656,16 +4635,6 @@ init_virtual_regs (es)
   ptr[VIRTUAL_CFA_REGNUM] = virtual_cfa_rtx;
 }
 
-void
-clear_emit_caches ()
-{
-  int i;
-
-  /* Clear the start_sequence/gen_sequence cache.  */
-  for (i = 0; i < SEQUENCE_RESULT_SIZE; i++)
-    sequence_result[i] = 0;
-  free_insn = 0;
-}
 \f
 /* Used by copy_insn_1 to avoid copying SCRATCHes more than once.  */
 static rtx copy_insn_scratch_in[MAX_RECOG_OPERANDS];
@@ -4860,8 +4829,6 @@ init_emit ()
   last_label_num = 0;
   seq_stack = NULL;
 
-  clear_emit_caches ();
-
   /* Init the tables that describe all the pseudo regs.  */
 
   f->emit->regno_pointer_align_length = LAST_VIRTUAL_REGISTER + 101;

diff --git a/gcc/integrate.c b/gcc/integrate.c
index 2ea46c9363f93fcc0c2fc0b68eff29919610c58e..cf9413ee5169d112098afa6e5a05216c24e2c481 100644 (file)
--- a/gcc/integrate.c
+++ b/gcc/integrate.c
@@ -2976,7 +2976,6 @@ output_inline_function (fndecl)
 
   cfun = f;
   current_function_decl = fndecl;
-  clear_emit_caches ();
 
   set_new_last_label_num (f->inl_max_label_num);
 

diff --git a/gcc/rtl.h b/gcc/rtl.h
index eac532e612ca895a52a594fba31fac1ec506fad3..f4adc1da6b50e168139cb07068c4ee71bac1a506 100644 (file)
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -1985,7 +1985,6 @@ extern void reorder_insns_nobb                    PARAMS ((rtx, rtx, rtx));
 extern int get_max_uid                         PARAMS ((void));
 extern int in_sequence_p                       PARAMS ((void));
 extern void force_next_line_note               PARAMS ((void));
-extern void clear_emit_caches                  PARAMS ((void));
 extern void init_emit                          PARAMS ((void));
 extern void init_emit_once                     PARAMS ((int));
 extern void push_topmost_sequence              PARAMS ((void));