cfglayout.c (insn_scope, insn_line): Constify.

	* cfglayout.c (insn_scope, insn_line): Constify.
	* emit-rtl.c (const_int_htab_hash, const_int_htab_eq,
	const_double_htab_hash, const_double_htab_eq,
	mem_attrs_htab_hash): Likewise.
	* loop-iv.c (biv_eq): Likewise.
	* print-rtl.c (print_rtx, print_decl_name, print_mem_expr,
	print_inline_rtx, debug_rtx, debug_rtx_list, debug_rtx_range,
	debug_rtx_find, print_rtl, print_rtl_single, print_simple_rtl):
	Likewise. 
	* rtl-error.c (location_for_asm, diagnostic_for_asm,
	error_for_asm, warning_for_asm, _fatal_insn,
	_fatal_insn_not_found): Likewise. 
	* rtl.c (rtx_size, shared_const_p, shallow_copy_rtx_stat,
	rtx_equal_p, rtl_check_failed_bounds, rtl_check_failed_type1,
	rtl_check_failed_type2, rtl_check_failed_code1,
	rtl_check_failed_code2, rtl_check_failed_code_mode,
	rtvec_check_failed_bounds, rtl_check_failed_flag): Likewise.
	* rtl.h (rtl_check_failed_bounds, rtl_check_failed_type1,
	rtl_check_failed_type2, rtl_check_failed_code1,
	rtl_check_failed_code2, rtl_check_failed_code_mode,
	rtvec_check_failed_bounds, rtl_check_failed_flag, LABEL_KIND,
	SET_LABEL_KIND, rhs_regno, subreg_lsb, subreg_regno, subreg_nregs,
	shared_const_p, rtx_size, shallow_copy_rtx_stat, rtx_equal_p,
	get_pool_mode, insn_line, insn_file, simplify_replace_rtx,
	mode_signbit_p, rtx_addr_can_trap_p, nonzero_address_p,
	rtx_unstable_p, get_integer_term, get_related_value,
	offset_within_block_p, reg_mentioned_p, count_occurrences,
	reg_referenced_p, reg_used_between_p, no_labels_between_p,
	single_set_2, multiple_sets, set_noop_p, refers_to_regno_p,
	reg_overlap_mentioned_p, dead_or_set_p, dead_or_set_regno_p,
	find_reg_note, find_regno_note, find_reg_equal_equiv_note,
	find_constant_src, find_reg_fusage, find_regno_fusage,
	pure_call_p, remove_note, side_effects_p, volatile_refs_p,
	volatile_insn_p, may_trap_p, may_trap_after_code_motion_p,
	may_trap_or_fault_p, inequality_comparisons_p, tablejump_p,
	computed_jump_p, auto_inc_p, in_expr_list_p,
	remove_node_from_expr_list, loc_mentioned_in_p,
	label_is_jump_target_p, reversed_comparison_code_parts,
	debug_rtx, debug_rtx_list, debug_rtx_range, debug_rtx_find,
	print_mem_expr, print_rtl, print_simple_rtl, print_rtl_single,
	print_inline_rtx): Likewise.
	* rtlanal.c (covers_regno_p, covers_regno_no_parallel_p,
	computed_jump_p_1, nonzero_bits1, rtx_unstable_p,
	rtx_addr_can_trap_p_1, rtx_addr_can_trap_p, nonzero_address_p,
	get_integer_term, get_related_value, offset_within_block_p,
	count_occurrences, reg_mentioned_p, no_labels_between_p,
	reg_used_between_p, reg_referenced_p, single_set_2,
	multiple_sets, set_noop_p, refers_to_regno_p,
	reg_overlap_mentioned_p, dead_or_set_p,
	covers_regno_no_parallel_p, covers_regno_p,
	dead_or_set_regno_p, find_reg_note, find_regno_note,
	find_reg_equal_equiv_note, find_constant_src, find_reg_fusage,
	find_regno_fusage, pure_call_p, remove_note, in_expr_list_p,
	remove_node_from_expr_list, volatile_insn_p, volatile_refs_p,
	side_effects_p, may_trap_p_1, may_trap_p,
	may_trap_after_code_motion_p, may_trap_or_fault_p,
	inequality_comparisons_p, tablejump_p, computed_jump_p_1,
	computed_jump_p, auto_inc_p, loc_mentioned_in_p, subreg_lsb,
	subreg_regno, subreg_nregs, label_is_jump_target_p): Likewise.
	* simplify-rtx.c (neg_const_int, plus_minus_operand_p,
	mode_signbit_p, simplify_replace_rtx, plus_minus_operand_p):
	Likewise. 
	* toplev.h (_fatal_insn_not_found, _fatal_insn, error_for_asm,
	warning_for_asm): Likewise.
	* tree.h (print_rtl): Likewise.
	* varasm.c (get_pool_mode): Likewise.

From-SVN: r126922

1 files changed, 15 insertions, 19 deletions

diff --git a/gcc/rtl.c b/gcc/rtl.c
index 7d3dac7..cb79a70 100644
--- a/gcc/rtl.c
+++ b/gcc/rtl.c
@@ -168,7 +168,7 @@ rtvec_alloc (int n)
 /* Return the number of bytes occupied by rtx value X.  */
 
 unsigned int
-rtx_size (rtx x)
+rtx_size (const_rtx x)
 {
   if (GET_CODE (x) == SYMBOL_REF && SYMBOL_REF_HAS_BLOCK_INFO_P (x))
     return RTX_HDR_SIZE + sizeof (struct block_symbol);
@@ -204,7 +204,7 @@ rtx_alloc_stat (RTX_CODE code MEM_STAT_DECL)
 /* Return true if ORIG is a sharable CONST.  */
 
 bool
-shared_const_p (rtx orig)
+shared_const_p (const_rtx orig)
 {
   gcc_assert (GET_CODE (orig) == CONST);
   
@@ -319,15 +319,11 @@ copy_rtx (rtx orig)
 /* Create a new copy of an rtx.  Only copy just one level.  */
 
 rtx
-shallow_copy_rtx_stat (rtx orig MEM_STAT_DECL)
+shallow_copy_rtx_stat (const_rtx orig MEM_STAT_DECL)
 {
-  unsigned int size;
-  rtx copy;
-
-  size = rtx_size (orig);
-  copy = (rtx) ggc_alloc_zone_pass_stat (size, &rtl_zone);
-  memcpy (copy, orig, size);
-  return copy;
+  const unsigned int size = rtx_size (orig);
+  rtx const copy = (rtx) ggc_alloc_zone_pass_stat (size, &rtl_zone);
+  return memcpy (copy, orig, size);
 }
 
 /* Nonzero when we are generating CONCATs.  */
@@ -341,7 +337,7 @@ int currently_expanding_to_rtl;
    This is the Lisp function EQUAL for rtx arguments.  */
 
 int
-rtx_equal_p (rtx x, rtx y)
+rtx_equal_p (const_rtx x, const_rtx y)
 {
   int i;
   int j;
@@ -480,7 +476,7 @@ dump_rtx_statistics (void)
 
 #if defined ENABLE_RTL_CHECKING && (GCC_VERSION >= 2007)
 void
-rtl_check_failed_bounds (rtx r, int n, const char *file, int line,
+rtl_check_failed_bounds (const_rtx r, int n, const char *file, int line,
 			 const char *func)
 {
   internal_error
@@ -490,7 +486,7 @@ rtl_check_failed_bounds (rtx r, int n, const char *file, int line,
 }
 
 void
-rtl_check_failed_type1 (rtx r, int n, int c1, const char *file, int line,
+rtl_check_failed_type1 (const_rtx r, int n, int c1, const char *file, int line,
 			const char *func)
 {
   internal_error
@@ -500,7 +496,7 @@ rtl_check_failed_type1 (rtx r, int n, int c1, const char *file, int line,
 }
 
 void
-rtl_check_failed_type2 (rtx r, int n, int c1, int c2, const char *file,
+rtl_check_failed_type2 (const_rtx r, int n, int c1, int c2, const char *file,
 			int line, const char *func)
 {
   internal_error
@@ -510,7 +506,7 @@ rtl_check_failed_type2 (rtx r, int n, int c1, int c2, const char *file,
 }
 
 void
-rtl_check_failed_code1 (rtx r, enum rtx_code code, const char *file,
+rtl_check_failed_code1 (const_rtx r, enum rtx_code code, const char *file,
 			int line, const char *func)
 {
   internal_error ("RTL check: expected code '%s', have '%s' in %s, at %s:%d",
@@ -519,7 +515,7 @@ rtl_check_failed_code1 (rtx r, enum rtx_code code, const char *file,
 }
 
 void
-rtl_check_failed_code2 (rtx r, enum rtx_code code1, enum rtx_code code2,
+rtl_check_failed_code2 (const_rtx r, enum rtx_code code1, enum rtx_code code2,
 			const char *file, int line, const char *func)
 {
   internal_error
@@ -529,7 +525,7 @@ rtl_check_failed_code2 (rtx r, enum rtx_code code1, enum rtx_code code2,
 }
 
 void
-rtl_check_failed_code_mode (rtx r, enum rtx_code code, enum machine_mode mode,
+rtl_check_failed_code_mode (const_rtx r, enum rtx_code code, enum machine_mode mode,
 			    bool not_mode, const char *file, int line,
 			    const char *func)
 {
@@ -556,7 +552,7 @@ rtl_check_failed_block_symbol (const char *file, int line, const char *func)
 
 /* XXX Maybe print the vector?  */
 void
-rtvec_check_failed_bounds (rtvec r, int n, const char *file, int line,
+rtvec_check_failed_bounds (const_rtvec r, int n, const char *file, int line,
 			   const char *func)
 {
   internal_error
@@ -567,7 +563,7 @@ rtvec_check_failed_bounds (rtvec r, int n, const char *file, int line,
 
 #if defined ENABLE_RTL_FLAG_CHECKING
 void
-rtl_check_failed_flag (const char *name, rtx r, const char *file,
+rtl_check_failed_flag (const char *name, const_rtx r, const char *file,
 		       int line, const char *func)
 {
   internal_error