#ifndef _RTL_H
#define _RTL_H
#include "machmode.h"
#undef FFS
#undef FLOAT
#undef ABS
#undef PC
#ifndef TREE_CODE
union tree_node;
#endif
#define RTX_CODE enum rtx_code
enum rtx_code {
#define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) ENUM ,
#include "rtl.def"
#undef DEF_RTL_EXPR
LAST_AND_UNUSED_RTX_CODE};
#define NUM_RTX_CODE ((int)LAST_AND_UNUSED_RTX_CODE)
extern int rtx_length[];
#define GET_RTX_LENGTH(CODE) (rtx_length[(int) (CODE)])
extern char *rtx_name[];
#define GET_RTX_NAME(CODE) (rtx_name[(int) (CODE)])
extern char *rtx_format[];
#define GET_RTX_FORMAT(CODE) (rtx_format[(int) (CODE)])
extern char rtx_class[];
#define GET_RTX_CLASS(CODE) (rtx_class[(int) (CODE)])
typedef struct
{
unsigned min_align: 8;
unsigned base_after_vec: 1;
unsigned min_after_vec: 1;
unsigned max_after_vec: 1;
unsigned min_after_base: 1;
unsigned max_after_base: 1;
unsigned offset_unsigned: 1;
unsigned : 2;
unsigned scale : 8;
} addr_diff_vec_flags;
typedef union rtunion_def
{
HOST_WIDE_INT rtwint;
int rtint;
char *rtstr;
struct rtx_def *rtx;
struct rtvec_def *rtvec;
enum machine_mode rttype;
addr_diff_vec_flags rt_addr_diff_vec_flags;
struct bitmap_head_def *rtbit;
union tree_node *rttree;
struct basic_block_def *bb;
} rtunion;
typedef struct rtx_def
{
#ifdef ONLY_INT_FIELDS
#ifdef CODE_FIELD_BUG
unsigned int code : 16;
#else
unsigned short code;
#endif
#else
enum rtx_code code : 16;
#endif
#ifdef ONLY_INT_FIELDS
int mode : 8;
#else
enum machine_mode mode : 8;
#endif
unsigned int jump : 1;
unsigned int call : 1;
unsigned int unchanging : 1;
unsigned int volatil : 1;
unsigned int in_struct : 1;
unsigned int used : 1;
unsigned integrated : 1;
unsigned frame_related : 1;
rtunion fld[1];
} *rtx;
#define NULL_RTX (rtx) 0
#ifdef SHORT_ENUM_BUG
#define GET_CODE(RTX) ((enum rtx_code) ((RTX)->code))
#define PUT_CODE(RTX, CODE) ((RTX)->code = ((short) (CODE)))
#else
#define GET_CODE(RTX) ((RTX)->code)
#define PUT_CODE(RTX, CODE) ((RTX)->code = (CODE))
#endif
#define GET_MODE(RTX) ((RTX)->mode)
#define PUT_MODE(RTX, MODE) ((RTX)->mode = (MODE))
#define RTX_INTEGRATED_P(RTX) ((RTX)->integrated)
#define RTX_UNCHANGING_P(RTX) ((RTX)->unchanging)
#define RTX_FRAME_RELATED_P(RTX) ((RTX)->frame_related)
typedef struct rtvec_def{
int num_elem;
rtunion elem[1];
} *rtvec;
#define NULL_RTVEC (rtvec) 0
#define GET_NUM_ELEM(RTVEC) ((RTVEC)->num_elem)
#define PUT_NUM_ELEM(RTVEC, NUM) ((RTVEC)->num_elem = (NUM))
#define RTVEC_ELT(RTVEC, I) ((RTVEC)->elem[(I)].rtx)
#define REG_P(X) (GET_CODE (X) == REG)
#define CONSTANT_P(X) \
(GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \
|| GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST_DOUBLE \
|| GET_CODE (X) == CONST || GET_CODE (X) == HIGH \
|| GET_CODE (X) == CONST_VECTOR \
|| GET_CODE (X) == CONSTANT_P_RTX)
#define XEXP(RTX, N) ((RTX)->fld[N].rtx)
#define XINT(RTX, N) ((RTX)->fld[N].rtint)
#define XWINT(RTX, N) ((RTX)->fld[N].rtwint)
#define XSTR(RTX, N) ((RTX)->fld[N].rtstr)
#define XVEC(RTX, N) ((RTX)->fld[N].rtvec)
#define XVECLEN(RTX, N) ((RTX)->fld[N].rtvec->num_elem)
#define XVECEXP(RTX,N,M)((RTX)->fld[N].rtvec->elem[M].rtx)
#define XBITMAP(RTX, N) ((RTX)->fld[N].rtbit)
#define XTREE(RTX, N) ((RTX)->fld[N].rttree)
#define INSN_UID(INSN) ((INSN)->fld[0].rtint)
#define PREV_INSN(INSN) ((INSN)->fld[1].rtx)
#define NEXT_INSN(INSN) ((INSN)->fld[2].rtx)
#define PATTERN(INSN) ((INSN)->fld[3].rtx)
#define INSN_CODE(INSN) ((INSN)->fld[4].rtint)
#define LOG_LINKS(INSN) ((INSN)->fld[5].rtx)
#define INSN_DELETED_P(INSN) ((INSN)->volatil)
#define CONST_CALL_P(INSN) ((INSN)->unchanging)
#define INSN_ANNULLED_BRANCH_P(INSN) ((INSN)->unchanging)
#define INSN_FROM_TARGET_P(INSN) ((INSN)->in_struct)
#define REG_NOTES(INSN) ((INSN)->fld[6].rtx)
#define ADDR_DIFF_VEC_FLAGS(RTX) ((RTX)->fld[4].rt_addr_diff_vec_flags)
enum reg_note { REG_DEAD = 1, REG_INC = 2, REG_EQUIV = 3, REG_WAS_0 = 4,
REG_EQUAL = 5, REG_RETVAL = 6, REG_LIBCALL = 7,
REG_NONNEG = 8, REG_NO_CONFLICT = 9, REG_UNUSED = 10,
REG_CC_SETTER = 11, REG_CC_USER = 12, REG_LABEL = 13,
REG_DEP_ANTI = 14, REG_DEP_OUTPUT = 15, REG_BR_PROB = 16,
REG_EXEC_COUNT = 17, REG_NOALIAS = 18, REG_SAVE_AREA = 19,
REG_BR_PRED = 20, REG_EH_CONTEXT = 21,
REG_FRAME_RELATED_EXPR = 22, REG_EH_REGION = 23,
REG_EH_RETHROW = 24 };
#define REG_BR_PROB_BASE 10000
#define REG_NOTE_KIND(LINK) ((enum reg_note) GET_MODE (LINK))
#define PUT_REG_NOTE_KIND(LINK,KIND) PUT_MODE(LINK, (enum machine_mode) (KIND))
extern char *reg_note_name[];
#define GET_REG_NOTE_NAME(MODE) (reg_note_name[(int) (MODE)])
#define CALL_INSN_FUNCTION_USAGE(INSN) ((INSN)->fld[7].rtx)
#define CODE_LABEL_NUMBER(INSN) ((INSN)->fld[3].rtint)
#define LINE_NUMBER NOTE
#define NOTE_SOURCE_FILE(INSN) ((INSN)->fld[3].rtstr)
#define NOTE_BLOCK_NUMBER(INSN) ((INSN)->fld[3].rtint)
#define NOTE_RANGE_INFO(INSN) ((INSN)->fld[3].rtx)
#define NOTE_LIVE_INFO(INSN) ((INSN)->fld[3].rtx)
#define NOTE_BASIC_BLOCK(INSN) ((INSN)->fld[3].bb)
#define NOTE_BLOCK_LIVE_RANGE_BLOCK -1
#define NOTE_LINE_NUMBER(INSN) ((INSN)->fld[4].rtint)
#define NOTE_INSN_DELETED -1
#define NOTE_INSN_BLOCK_BEG -2
#define NOTE_INSN_BLOCK_END -3
#define NOTE_INSN_LOOP_BEG -4
#define NOTE_INSN_LOOP_END -5
#define NOTE_INSN_FUNCTION_END -6
#define NOTE_INSN_SETJMP -7
#define NOTE_INSN_LOOP_CONT -8
#define NOTE_INSN_LOOP_VTOP -9
#define NOTE_INSN_PROLOGUE_END -10
#define NOTE_INSN_EPILOGUE_BEG -11
#define NOTE_INSN_DELETED_LABEL -12
#define NOTE_INSN_FUNCTION_BEG -13
#define NOTE_INSN_EH_REGION_BEG -14
#define NOTE_INSN_EH_REGION_END -15
#define NOTE_REPEATED_LINE_NUMBER -16
#define NOTE_INSN_RANGE_START -17
#define NOTE_INSN_RANGE_END -18
#define NOTE_INSN_LIVE -19
#define NOTE_INSN_BASIC_BLOCK -20
#if 0
#define NOTE_DECL_NAME(INSN) ((INSN)->fld[3].rtstr)
#define NOTE_DECL_CODE(INSN) ((INSN)->fld[4].rtint)
#define NOTE_DECL_RTL(INSN) ((INSN)->fld[5].rtx)
#define NOTE_DECL_IDENTIFIER(INSN) ((INSN)->fld[6].rtint)
#define NOTE_DECL_TYPE(INSN) ((INSN)->fld[7].rtint)
#endif
extern char *note_insn_name[];
#define GET_NOTE_INSN_NAME(NOTE_CODE) (note_insn_name[-(NOTE_CODE)])
#define LABEL_NAME(LABEL) ((LABEL)->fld[4].rtstr)
#define LABEL_NUSES(LABEL) ((LABEL)->fld[5].rtint)
#define ADDRESSOF_REGNO(RTX) ((RTX)->fld[1].rtint)
#define ADDRESSOF_DECL(X) ((tree) XEXP ((X), 2))
#define SET_ADDRESSOF_DECL(X, T) (XEXP ((X), 2) = (rtx) (T))
#define JUMP_LABEL(INSN) ((INSN)->fld[7].rtx)
#define LABEL_REFS(LABEL) ((LABEL)->fld[6].rtx)
#define LABEL_NEXTREF(REF) ((REF)->fld[1].rtx)
#define CONTAINING_INSN(RTX) ((RTX)->fld[2].rtx)
#define REGNO(RTX) ((RTX)->fld[0].rtint)
#define REG_FUNCTION_VALUE_P(RTX) ((RTX)->integrated)
#define REG_USERVAR_P(RTX) ((RTX)->volatil)
#define INTVAL(RTX) ((RTX)->fld[0].rtwint)
#define SUBREG_REG(RTX) ((RTX)->fld[0].rtx)
#define SUBREG_WORD(RTX) ((RTX)->fld[1].rtint)
#define SUBREG_PROMOTED_VAR_P(RTX) ((RTX)->in_struct)
#define SUBREG_PROMOTED_UNSIGNED_P(RTX) ((RTX)->unchanging)
#define ASM_OPERANDS_TEMPLATE(RTX) XSTR ((RTX), 0)
#define ASM_OPERANDS_OUTPUT_CONSTRAINT(RTX) XSTR ((RTX), 1)
#define ASM_OPERANDS_OUTPUT_IDX(RTX) XINT ((RTX), 2)
#define ASM_OPERANDS_INPUT_VEC(RTX) XVEC ((RTX), 3)
#define ASM_OPERANDS_INPUT_CONSTRAINT_VEC(RTX) XVEC ((RTX), 4)
#define ASM_OPERANDS_INPUT(RTX, N) XVECEXP ((RTX), 3, (N))
#define ASM_OPERANDS_INPUT_LENGTH(RTX) XVECLEN ((RTX), 3)
#define ASM_OPERANDS_INPUT_CONSTRAINT(RTX, N) XSTR (XVECEXP ((RTX), 4, (N)), 0)
#define ASM_OPERANDS_INPUT_MODE(RTX, N) GET_MODE (XVECEXP ((RTX), 4, (N)))
#define ASM_OPERANDS_SOURCE_FILE(RTX) XSTR ((RTX), 5)
#define ASM_OPERANDS_SOURCE_LINE(RTX) XINT ((RTX), 6)
#define MEM_VOLATILE_P(RTX) ((RTX)->volatil)
#define MEM_IN_STRUCT_P(RTX) ((RTX)->in_struct)
#define MEM_SCALAR_P(RTX) ((RTX)->frame_related)
#define MEM_COPY_ATTRIBUTES(LHS, RHS) \
(MEM_VOLATILE_P (LHS) = MEM_VOLATILE_P (RHS), \
MEM_IN_STRUCT_P (LHS) = MEM_IN_STRUCT_P (RHS), \
MEM_SCALAR_P (LHS) = MEM_SCALAR_P (RHS))
#define MEM_SET_IN_STRUCT_P(RTX, VAL) \
((VAL) ? (MEM_IN_STRUCT_P (RTX) = 1, MEM_SCALAR_P (RTX) = 0) \
: (MEM_IN_STRUCT_P (RTX) = 0, MEM_SCALAR_P (RTX) = 1))
#define MEM_ALIAS_SET(RTX) (XINT (RTX, 1))
#define LABEL_OUTSIDE_LOOP_P(RTX) ((RTX)->in_struct)
#define LABEL_REF_NONLOCAL_P(RTX) ((RTX)->volatil)
#define LABEL_PRESERVE_P(RTX) ((RTX)->in_struct)
#define REG_LOOP_TEST_P(RTX) ((RTX)->in_struct)
#define SCHED_GROUP_P(INSN) ((INSN)->in_struct)
#define LINK_COST_ZERO(X) ((X)->jump)
#define LINK_COST_FREE(X) ((X)->call)
#define SET_DEST(RTX) ((RTX)->fld[0].rtx)
#define SET_SRC(RTX) ((RTX)->fld[1].rtx)
#define TRAP_CONDITION(RTX) ((RTX)->fld[0].rtx)
#define TRAP_CODE(RTX) (RTX)->fld[1].rtx
#define CONSTANT_POOL_ADDRESS_P(RTX) ((RTX)->unchanging)
#define SYMBOL_REF_FLAG(RTX) ((RTX)->volatil)
#define SYMBOL_REF_NEED_ADJUST(RTX) ((RTX)->in_struct)
#define SYMBOL_REF_USED(RTX) ((RTX)->used)
#define FIRST_FUNCTION_INSN(RTX) ((RTX)->fld[2].rtx)
#define FIRST_PARM_INSN(RTX) ((RTX)->fld[3].rtx)
#define FIRST_LABELNO(RTX) ((RTX)->fld[4].rtint)
#define LAST_LABELNO(RTX) ((RTX)->fld[5].rtint)
#define MAX_PARMREG(RTX) ((RTX)->fld[6].rtint)
#define MAX_REGNUM(RTX) ((RTX)->fld[7].rtint)
#define FUNCTION_ARGS_SIZE(RTX) ((RTX)->fld[8].rtint)
#define POPS_ARGS(RTX) ((RTX)->fld[9].rtint)
#define STACK_SLOT_LIST(RTX) ((RTX)->fld[10].rtx)
#define FORCED_LABELS(RTX) ((RTX)->fld[11].rtx)
#define FUNCTION_FLAGS(RTX) ((RTX)->fld[12].rtint)
#define OUTGOING_ARGS_SIZE(RTX) ((RTX)->fld[13].rtint)
#define ORIGINAL_ARG_VECTOR(RTX) ((RTX)->fld[14].rtvec)
#define ORIGINAL_DECL_INITIAL(RTX) ((RTX)->fld[15].rtx)
#define INLINE_REGNO_REG_RTX(RTX) ((RTX)->fld[16].rtvec)
#define INLINE_REGNO_POINTER_FLAG(RTX) ((RTX)->fld[17].rtstr)
#define INLINE_REGNO_POINTER_ALIGN(RTX) ((RTX)->fld[18].rtstr)
#define PARMREG_STACK_LOC(RTX) ((RTX)->fld[19].rtvec)
#define FUNCTION_FLAGS_CALLS_ALLOCA 01
#define FUNCTION_FLAGS_CALLS_SETJMP 02
#define FUNCTION_FLAGS_RETURNS_STRUCT 04
#define FUNCTION_FLAGS_RETURNS_PCC_STRUCT 010
#define FUNCTION_FLAGS_NEEDS_CONTEXT 020
#define FUNCTION_FLAGS_HAS_NONLOCAL_LABEL 040
#define FUNCTION_FLAGS_RETURNS_POINTER 0100
#define FUNCTION_FLAGS_USES_CONST_POOL 0200
#define FUNCTION_FLAGS_CALLS_LONGJMP 0400
#define FUNCTION_FLAGS_USES_PIC_OFFSET_TABLE 01000
#define FUNCTION_FLAGS_HAS_COMPUTED_JUMP 02000
#if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) || defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT))
#define FIND_REG_INC_NOTE(insn, reg) (find_reg_note ((insn), REG_INC, (reg)))
#else
#define FIND_REG_INC_NOTE(insn, reg) 0
#endif
#if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) || defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT))
#define AUTO_INC_DEC
#endif
#ifndef HAVE_PRE_INCREMENT
#define HAVE_PRE_INCREMENT 0
#endif
#ifndef HAVE_PRE_DECREMENT
#define HAVE_PRE_DECREMENT 0
#endif
#ifndef HAVE_POST_INCREMENT
#define HAVE_POST_INCREMENT 0
#endif
#ifndef HAVE_POST_DECREMENT
#define HAVE_POST_DECREMENT 0
#endif
#ifndef USE_LOAD_POST_INCREMENT
#define USE_LOAD_POST_INCREMENT(MODE) HAVE_POST_INCREMENT
#endif
#ifndef USE_LOAD_POST_DECREMENT
#define USE_LOAD_POST_DECREMENT(MODE) HAVE_POST_DECREMENT
#endif
#ifndef USE_LOAD_PRE_INCREMENT
#define USE_LOAD_PRE_INCREMENT(MODE) HAVE_PRE_INCREMENT
#endif
#ifndef USE_LOAD_PRE_DECREMENT
#define USE_LOAD_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT
#endif
#ifndef USE_STORE_POST_INCREMENT
#define USE_STORE_POST_INCREMENT(MODE) HAVE_POST_INCREMENT
#endif
#ifndef USE_STORE_POST_DECREMENT
#define USE_STORE_POST_DECREMENT(MODE) HAVE_POST_DECREMENT
#endif
#ifndef USE_STORE_PRE_INCREMENT
#define USE_STORE_PRE_INCREMENT(MODE) HAVE_PRE_INCREMENT
#endif
#ifndef USE_STORE_PRE_DECREMENT
#define USE_STORE_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT
#endif
#define RANGE_INFO_NOTE_START(INSN) (XEXP (INSN, 0))
#define RANGE_INFO_NOTE_END(INSN) (XEXP (INSN, 1))
#define RANGE_INFO_REGS(INSN) (XVEC (INSN, 2))
#define RANGE_INFO_REGS_REG(INSN, N) (XVECEXP (INSN, 2, N))
#define RANGE_INFO_NUM_REGS(INSN) (XVECLEN (INSN, 2))
#define RANGE_INFO_NCALLS(INSN) (XINT (INSN, 3))
#define RANGE_INFO_NINSNS(INSN) (XINT (INSN, 4))
#define RANGE_INFO_UNIQUE(INSN) (XINT (INSN, 5))
#define RANGE_INFO_BB_START(INSN) (XINT (INSN, 6))
#define RANGE_INFO_BB_END(INSN) (XINT (INSN, 7))
#define RANGE_INFO_LOOP_DEPTH(INSN) (XINT (INSN, 8))
#define RANGE_INFO_LIVE_START(INSN) (XBITMAP (INSN, 9))
#define RANGE_INFO_LIVE_END(INSN) (XBITMAP (INSN, 10))
#define RANGE_INFO_MARKER_START(INSN) (XINT (INSN, 11))
#define RANGE_INFO_MARKER_END(INSN) (XINT (INSN, 12))
#define RANGE_REG_PSEUDO(INSN,N) (XINT (XVECEXP (INSN, 2, N), 0))
#define RANGE_REG_COPY(INSN,N) (XINT (XVECEXP (INSN, 2, N), 1))
#define RANGE_REG_REFS(INSN,N) (XINT (XVECEXP (INSN, 2, N), 2))
#define RANGE_REG_SETS(INSN,N) (XINT (XVECEXP (INSN, 2, N), 3))
#define RANGE_REG_DEATHS(INSN,N) (XINT (XVECEXP (INSN, 2, N), 4))
#define RANGE_REG_COPY_FLAGS(INSN,N) (XINT (XVECEXP (INSN, 2, N), 5))
#define RANGE_REG_LIVE_LENGTH(INSN,N) (XINT (XVECEXP (INSN, 2, N), 6))
#define RANGE_REG_N_CALLS(INSN,N) (XINT (XVECEXP (INSN, 2, N), 7))
#define RANGE_REG_SYMBOL_NODE(INSN,N) (XTREE (XVECEXP (INSN, 2, N), 8))
#define RANGE_REG_BLOCK_NODE(INSN,N) (XTREE (XVECEXP (INSN, 2, N), 9))
#define RANGE_VAR_LIST(INSN) (XEXP (INSN, 0))
#define RANGE_VAR_BLOCK(INSN) (XTREE (INSN, 1))
#define RANGE_VAR_NUM(INSN) (XINT (INSN, 2))
#define RANGE_LIVE_BITMAP(INSN) (XBITMAP (INSN, 0))
#define RANGE_LIVE_ORIG_BLOCK(INSN) (XINT (INSN, 1))
#ifndef exact_log2
#define exact_log2(N) exact_log2_wide ((unsigned HOST_WIDE_INT) (N))
#define floor_log2(N) floor_log2_wide ((unsigned HOST_WIDE_INT) (N))
#endif
extern int exact_log2_wide PROTO((unsigned HOST_WIDE_INT));
extern int floor_log2_wide PROTO((unsigned HOST_WIDE_INT));
extern int ceil_log2 PROTO((unsigned HOST_WIDE_INT));
#define plus_constant(X,C) plus_constant_wide (X, (HOST_WIDE_INT) (C))
#define plus_constant_for_output(X,C) \
plus_constant_for_output_wide (X, (HOST_WIDE_INT) (C))
extern rtx plus_constant_wide PROTO((rtx, HOST_WIDE_INT));
extern rtx plus_constant_for_output_wide PROTO((rtx, HOST_WIDE_INT));
extern void optimize_save_area_alloca PROTO((rtx));
extern rtx gen_rtx PVPROTO((enum rtx_code,
enum machine_mode, ...));
extern rtvec gen_rtvec PVPROTO((int, ...));
#ifdef BUFSIZ
extern rtx read_rtx PROTO((FILE *));
#endif
extern char *oballoc PROTO((int));
extern char *permalloc PROTO((int));
extern rtx rtx_alloc PROTO((RTX_CODE));
extern rtvec rtvec_alloc PROTO((int));
extern rtx copy_rtx PROTO((rtx));
extern rtx copy_rtx_if_shared PROTO((rtx));
extern rtx copy_most_rtx PROTO((rtx, rtx));
extern rtx shallow_copy_rtx PROTO((rtx));
extern rtvec gen_rtvec_v PROTO((int, rtx *));
extern rtvec gen_rtvec_vv PROTO((int, rtunion *));
extern rtx gen_reg_rtx PROTO((enum machine_mode));
extern rtx gen_label_rtx PROTO((void));
extern rtx gen_inline_header_rtx PROTO((rtx, rtx, int, int, int, int,
int, int, rtx, rtx, int, int,
rtvec, rtx,
rtvec, char *, char *, rtvec));
extern rtx gen_lowpart_common PROTO((enum machine_mode, rtx));
extern rtx gen_lowpart PROTO((enum machine_mode, rtx));
extern rtx gen_lowpart_if_possible PROTO((enum machine_mode, rtx));
extern rtx gen_highpart PROTO((enum machine_mode, rtx));
extern rtx gen_realpart PROTO((enum machine_mode, rtx));
extern rtx gen_imagpart PROTO((enum machine_mode, rtx));
extern rtx operand_subword PROTO((rtx, int, int, enum machine_mode));
extern rtx operand_subword_force PROTO((rtx, int, enum machine_mode));
extern int subreg_lowpart_p PROTO((rtx));
extern rtx make_safe_from PROTO((rtx, rtx));
extern rtx convert_memory_address PROTO((enum machine_mode, rtx));
extern rtx memory_address PROTO((enum machine_mode, rtx));
extern rtx get_insns PROTO((void));
extern rtx get_last_insn PROTO((void));
extern rtx get_last_insn_anywhere PROTO((void));
extern void start_sequence PROTO((void));
extern void push_to_sequence PROTO((rtx));
extern void end_sequence PROTO((void));
extern rtx gen_sequence PROTO((void));
extern rtx immed_double_const PROTO((HOST_WIDE_INT, HOST_WIDE_INT, enum machine_mode));
extern rtx force_const_mem PROTO((enum machine_mode, rtx));
extern rtx force_reg PROTO((enum machine_mode, rtx));
extern rtx get_pool_constant PROTO((rtx));
extern enum machine_mode get_pool_mode PROTO((rtx));
extern int get_pool_offset PROTO((rtx));
extern rtx simplify_subtraction PROTO((rtx));
extern rtx assign_stack_local PROTO((enum machine_mode,
HOST_WIDE_INT, int));
extern rtx assign_stack_temp PROTO((enum machine_mode,
HOST_WIDE_INT, int));
extern rtx assign_temp PROTO((union tree_node *,
int, int, int));
extern rtx protect_from_queue PROTO((rtx, int));
extern void emit_queue PROTO((void));
extern rtx emit_move_insn PROTO((rtx, rtx));
extern rtx emit_insn_before PROTO((rtx, rtx));
extern rtx emit_jump_insn_before PROTO((rtx, rtx));
extern rtx emit_call_insn_before PROTO((rtx, rtx));
extern rtx emit_barrier_before PROTO((rtx));
extern rtx emit_label_before PROTO((rtx, rtx));
extern rtx emit_note_before PROTO((int, rtx));
extern rtx emit_insn_after PROTO((rtx, rtx));
extern rtx emit_jump_insn_after PROTO((rtx, rtx));
extern rtx emit_barrier_after PROTO((rtx));
extern rtx emit_label_after PROTO((rtx, rtx));
extern rtx emit_note_after PROTO((int, rtx));
extern rtx emit_line_note_after PROTO((char *, int, rtx));
extern rtx emit_insn PROTO((rtx));
extern rtx emit_insns PROTO((rtx));
extern rtx emit_insns_before PROTO((rtx, rtx));
extern rtx emit_insns_after PROTO((rtx, rtx));
extern rtx emit_jump_insn PROTO((rtx));
extern rtx emit_call_insn PROTO((rtx));
extern rtx emit_label PROTO((rtx));
extern rtx emit_barrier PROTO((void));
extern rtx emit_line_note PROTO((char *, int));
extern rtx emit_note PROTO((char *, int));
extern rtx emit_line_note_force PROTO((char *, int));
extern rtx make_insn_raw PROTO((rtx));
extern rtx previous_insn PROTO((rtx));
extern rtx next_insn PROTO((rtx));
extern rtx prev_nonnote_insn PROTO((rtx));
extern rtx next_nonnote_insn PROTO((rtx));
extern rtx prev_real_insn PROTO((rtx));
extern rtx next_real_insn PROTO((rtx));
extern rtx prev_active_insn PROTO((rtx));
extern rtx next_active_insn PROTO((rtx));
extern rtx prev_label PROTO((rtx));
extern rtx next_label PROTO((rtx));
extern rtx next_cc0_user PROTO((rtx));
extern rtx prev_cc0_setter PROTO((rtx));
extern rtx next_nondeleted_insn PROTO((rtx));
extern enum rtx_code reverse_condition PROTO((enum rtx_code));
extern enum rtx_code swap_condition PROTO((enum rtx_code));
extern enum rtx_code unsigned_condition PROTO((enum rtx_code));
extern enum rtx_code signed_condition PROTO((enum rtx_code));
extern rtx find_equiv_reg PROTO((rtx, rtx, enum reg_class, int, short *, int, enum machine_mode));
extern rtx squeeze_notes PROTO((rtx, rtx));
extern rtx delete_insn PROTO((rtx));
extern void delete_jump PROTO((rtx));
extern rtx get_label_before PROTO((rtx));
extern rtx get_label_after PROTO((rtx));
extern rtx follow_jumps PROTO((rtx));
extern rtx adj_offsettable_operand PROTO((rtx, int));
extern rtx try_split PROTO((rtx, rtx, int));
extern rtx split_insns PROTO((rtx, rtx));
extern rtx simplify_unary_operation PROTO((enum rtx_code, enum machine_mode, rtx, enum machine_mode));
extern rtx simplify_binary_operation PROTO((enum rtx_code, enum machine_mode, rtx, rtx));
extern rtx simplify_ternary_operation PROTO((enum rtx_code, enum machine_mode, enum machine_mode, rtx, rtx, rtx));
extern rtx simplify_relational_operation PROTO((enum rtx_code, enum machine_mode, rtx, rtx));
extern rtx gen_move_insn PROTO((rtx, rtx));
extern rtx gen_jump PROTO((rtx));
extern rtx gen_beq PROTO((rtx));
extern rtx gen_bge PROTO((rtx));
extern rtx gen_ble PROTO((rtx));
extern rtx gen_mem_addressof PROTO((rtx, union tree_node *));
extern rtx eliminate_constant_term PROTO((rtx, rtx *));
extern rtx expand_complex_abs PROTO((enum machine_mode, rtx, rtx, int));
extern enum machine_mode choose_hard_reg_mode PROTO((int, int));
extern void set_unique_reg_note PROTO((rtx, enum reg_note, rtx));
extern int rtx_unstable_p PROTO((rtx));
extern int rtx_varies_p PROTO((rtx));
extern int rtx_addr_varies_p PROTO((rtx));
extern HOST_WIDE_INT get_integer_term PROTO((rtx));
extern rtx get_related_value PROTO((rtx));
extern int reg_mentioned_p PROTO((rtx, rtx));
extern int reg_referenced_p PROTO((rtx, rtx));
extern int reg_used_between_p PROTO((rtx, rtx, rtx));
extern int reg_referenced_between_p PROTO((rtx, rtx, rtx));
extern int reg_set_between_p PROTO((rtx, rtx, rtx));
extern int regs_set_between_p PROTO((rtx, rtx, rtx));
extern int modified_between_p PROTO((rtx, rtx, rtx));
extern int no_labels_between_p PROTO((rtx, rtx));
extern int no_jumps_between_p PROTO((rtx, rtx));
extern int modified_in_p PROTO((rtx, rtx));
extern int reg_set_p PROTO((rtx, rtx));
extern rtx single_set PROTO((rtx));
extern int multiple_sets PROTO((rtx));
extern rtx find_last_value PROTO((rtx, rtx *, rtx, int));
extern int refers_to_regno_p PROTO((int, int, rtx, rtx *));
extern int reg_overlap_mentioned_p PROTO((rtx, rtx));
extern void note_stores PROTO((rtx, void (*)(rtx, rtx)));
extern rtx reg_set_last PROTO((rtx, rtx));
extern int rtx_equal_p PROTO((rtx, rtx));
extern int dead_or_set_p PROTO((rtx, rtx));
extern int dead_or_set_regno_p PROTO((rtx, int));
extern rtx find_reg_note PROTO((rtx, enum reg_note, rtx));
extern rtx find_regno_note PROTO((rtx, enum reg_note, int));
extern int find_reg_fusage PROTO((rtx, enum rtx_code, rtx));
extern int find_regno_fusage PROTO((rtx, enum rtx_code, int));
extern void remove_note PROTO((rtx, rtx));
extern int side_effects_p PROTO((rtx));
extern int volatile_refs_p PROTO((rtx));
extern int volatile_insn_p PROTO((rtx));
extern int may_trap_p PROTO((rtx));
extern int inequality_comparisons_p PROTO ((rtx));
extern rtx replace_rtx PROTO((rtx, rtx, rtx));
extern rtx replace_regs PROTO((rtx, rtx *, int, int));
extern int computed_jump_p PROTO((rtx));
typedef int (*rtx_function) PROTO((rtx *, void *));
extern int for_each_rtx PROTO((rtx *, rtx_function, void *));
extern rtx regno_use_in PROTO((int, rtx));
extern int auto_inc_p PROTO((rtx));
extern void remove_node_from_expr_list PROTO((rtx, rtx *));
extern rtx find_use_as_address PROTO((rtx, rtx, HOST_WIDE_INT));
extern int max_parallel;
extern void free_reg_info PROTO((void));
extern int asm_noperands PROTO((rtx));
extern char *decode_asm_operands PROTO((rtx, rtx *, rtx **,
const char **,
enum machine_mode *));
extern enum reg_class reg_preferred_class PROTO((int));
extern enum reg_class reg_alternate_class PROTO((int));
extern rtx get_first_nonparm_insn PROTO((void));
extern void split_block_insns PROTO((int, int));
extern void update_flow_info PROTO((rtx, rtx, rtx, rtx));
#define pc_rtx (&global_rtl.pc_val)
#define cc0_rtx (&global_rtl.cc0_val)
#define MAX_SAVED_CONST_INT 64
extern struct rtx_def const_int_rtx[MAX_SAVED_CONST_INT * 2 + 1];
#define const0_rtx (&const_int_rtx[MAX_SAVED_CONST_INT])
#define const1_rtx (&const_int_rtx[MAX_SAVED_CONST_INT+1])
#define const2_rtx (&const_int_rtx[MAX_SAVED_CONST_INT+2])
#define constm1_rtx (&const_int_rtx[MAX_SAVED_CONST_INT-1])
extern rtx const_true_rtx;
extern rtx const_tiny_rtx[3][(int) MAX_MACHINE_MODE];
#define CONST0_RTX(MODE) (const_tiny_rtx[0][(int) (MODE)])
#define CONST1_RTX(MODE) (const_tiny_rtx[1][(int) (MODE)])
#define CONST2_RTX(MODE) (const_tiny_rtx[2][(int) (MODE)])
extern struct _global_rtl
{
struct rtx_def pc_val, cc0_val;
struct rtx_def stack_pointer_val, frame_pointer_val;
struct rtx_def hard_frame_pointer_val;
struct rtx_def arg_pointer_val;
struct rtx_def virtual_incoming_args_val;
struct rtx_def virtual_stack_vars_val;
struct rtx_def virtual_stack_dynamic_val;
struct rtx_def virtual_outgoing_args_val;
struct rtx_def virtual_cfa_val;
} global_rtl;
#define stack_pointer_rtx (&global_rtl.stack_pointer_val)
#define frame_pointer_rtx (&global_rtl.frame_pointer_val)
extern rtx pic_offset_table_rtx;
extern rtx struct_value_rtx;
extern rtx struct_value_incoming_rtx;
extern rtx static_chain_rtx;
extern rtx static_chain_incoming_rtx;
extern rtx return_address_pointer_rtx;
#ifndef NO_GENRTL_H
#include "genrtl.h"
#endif
extern rtx gen_rtx_CONST_DOUBLE PROTO((enum machine_mode, rtx,
HOST_WIDE_INT, HOST_WIDE_INT));
extern rtx gen_rtx_CONST_INT PROTO((enum machine_mode, HOST_WIDE_INT));
extern rtx gen_rtx_REG PROTO((enum machine_mode, int));
extern rtx gen_rtx_MEM PROTO((enum machine_mode, rtx));
#define GEN_INT(N) gen_rtx_CONST_INT (VOIDmode, (HOST_WIDE_INT) (N))
#ifndef HARD_FRAME_POINTER_REGNUM
#define HARD_FRAME_POINTER_REGNUM FRAME_POINTER_REGNUM
#endif
#if HARD_FRAME_POINTER_REGNUM == FRAME_POINTER_REGNUM
#define hard_frame_pointer_rtx (&global_rtl.frame_pointer_val)
#else
#define hard_frame_pointer_rtx (&global_rtl.hard_frame_pointer_val)
#endif
#if FRAME_POINTER_REGNUM == ARG_POINTER_REGNUM
#define arg_pointer_rtx (&global_rtl.frame_pointer_val)
#else
#if HARD_FRAME_POINTER_REGNUM == ARG_POINTER_REGNUM
#define arg_pointer_rtx (&global_rtl.hard_frame_pointer_val)
#else
#define arg_pointer_rtx (&global_rtl.arg_pointer_val)
#endif
#endif
#define FIRST_VIRTUAL_REGISTER (FIRST_PSEUDO_REGISTER)
#define virtual_incoming_args_rtx (&global_rtl.virtual_incoming_args_val)
#define VIRTUAL_INCOMING_ARGS_REGNUM (FIRST_VIRTUAL_REGISTER)
#define virtual_stack_vars_rtx (&global_rtl.virtual_stack_vars_val)
#define VIRTUAL_STACK_VARS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 1)
#define virtual_stack_dynamic_rtx (&global_rtl.virtual_stack_dynamic_val)
#define VIRTUAL_STACK_DYNAMIC_REGNUM ((FIRST_VIRTUAL_REGISTER) + 2)
#define virtual_outgoing_args_rtx (&global_rtl.virtual_outgoing_args_val)
#define VIRTUAL_OUTGOING_ARGS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 3)
#define virtual_cfa_rtx (&global_rtl.virtual_cfa_val)
#define VIRTUAL_CFA_REGNUM ((FIRST_VIRTUAL_REGISTER) + 4)
#define LAST_VIRTUAL_REGISTER ((FIRST_VIRTUAL_REGISTER) + 4)
extern rtx find_next_ref PROTO((rtx, rtx));
extern rtx *find_single_use PROTO((rtx, rtx, rtx *));
extern rtx output_constant_def PROTO((union tree_node *));
extern rtx immed_real_const PROTO((union tree_node *));
extern rtx immed_vector_const PROTO((union tree_node *));
extern union tree_node *make_tree PROTO((union tree_node *, rtx));
#ifndef STORE_FLAG_VALUE
#define STORE_FLAG_VALUE 1
#endif
extern int flow2_completed;
extern int reload_completed;
extern int reload_in_progress;
extern int cse_not_expected;
extern int no_new_pseudos;
extern rtx *regno_reg_rtx;
extern char *regno_pointer_align;
#define REGNO_POINTER_ALIGN(REGNO) regno_pointer_align[REGNO]
extern int rtx_to_tree_code PROTO((enum rtx_code));
extern void obfree PROTO ((char *));
struct obstack;
extern void gcc_obstack_init PROTO ((struct obstack *));
extern void pop_obstacks PROTO ((void));
extern void push_obstacks PROTO ((struct obstack *,
struct obstack *));
#ifdef BUFSIZ
extern int read_skip_spaces PROTO ((FILE *));
#endif
struct cse_basic_block_data;
extern int rtx_cost PROTO ((rtx, enum rtx_code));
extern void delete_trivially_dead_insns PROTO ((rtx, int));
#ifdef BUFSIZ
extern int cse_main PROTO ((rtx, int, int, FILE *));
#endif
extern void cse_end_of_basic_block PROTO ((rtx,
struct cse_basic_block_data *,
int, int, int));
extern int comparison_dominates_p PROTO ((enum rtx_code, enum rtx_code));
extern int condjump_p PROTO ((rtx));
extern rtx condjump_label PROTO ((rtx));
extern int simplejump_p PROTO ((rtx));
extern int returnjump_p PROTO ((rtx));
extern int sets_cc0_p PROTO ((rtx));
extern int invert_jump PROTO ((rtx, rtx));
extern int rtx_renumbered_equal_p PROTO ((rtx, rtx));
extern int true_regnum PROTO ((rtx));
extern int redirect_jump PROTO ((rtx, rtx));
extern void jump_optimize PROTO ((rtx, int, int, int));
extern void rebuild_jump_labels PROTO ((rtx));
extern void thread_jumps PROTO ((rtx, int, int));
extern int redirect_exp PROTO ((rtx *, rtx, rtx, rtx));
extern int rtx_equal_for_thread_p PROTO ((rtx, rtx, rtx));
extern int invert_exp PROTO ((rtx, rtx));
extern int can_reverse_comparison_p PROTO ((rtx, rtx));
extern void delete_for_peephole PROTO ((rtx, rtx));
extern int condjump_in_parallel_p PROTO ((rtx));
#define JUMP_CROSS_JUMP 1
#define JUMP_NOOP_MOVES 1
#define JUMP_AFTER_REGSCAN 1
extern int max_reg_num PROTO ((void));
extern int max_label_num PROTO ((void));
extern int get_first_label_num PROTO ((void));
extern void delete_insns_since PROTO ((rtx));
extern void mark_reg_pointer PROTO ((rtx, int));
extern void mark_user_reg PROTO ((rtx));
extern void reset_used_flags PROTO ((rtx));
extern void reorder_insns PROTO ((rtx, rtx, rtx));
extern int get_max_uid PROTO ((void));
extern int in_sequence_p PROTO ((void));
extern void force_next_line_note PROTO ((void));
extern void init_emit PROTO ((void));
extern void init_emit_once PROTO ((int));
extern void push_topmost_sequence PROTO ((void));
extern void pop_topmost_sequence PROTO ((void));
extern int subreg_realpart_p PROTO ((rtx));
extern void reverse_comparison PROTO ((rtx));
extern void set_new_first_and_last_insn PROTO ((rtx, rtx));
extern void set_new_first_and_last_label_num PROTO ((int, int));
extern void unshare_all_rtl PROTO ((rtx));
extern void set_last_insn PROTO ((rtx));
extern void link_cc0_insns PROTO ((rtx));
extern void add_insn PROTO ((rtx));
extern void add_insn_before PROTO ((rtx, rtx));
extern void add_insn_after PROTO ((rtx, rtx));
extern void remove_insn PROTO ((rtx));
extern void reorder_insns_with_line_notes PROTO ((rtx, rtx, rtx));
extern void emit_insn_after_with_line_notes PROTO ((rtx, rtx, rtx));
extern enum rtx_code classify_insn PROTO ((rtx));
extern void init_virtual_regs PROTO ((void));
extern rtx emit PROTO ((rtx));
int force_line_numbers PROTO((void));
void restore_line_number_status PROTO((int old_value));
extern void add_clobbers PROTO ((rtx, int));
extern void combine_instructions PROTO ((rtx, int));
extern int extended_count PROTO ((rtx, enum machine_mode, int));
extern rtx remove_death PROTO ((int, rtx));
#ifdef BUFSIZ
extern void dump_combine_stats PROTO ((FILE *));
extern void dump_combine_total_stats PROTO ((FILE *));
#endif
#ifdef BUFSIZ
extern void schedule_insns PROTO ((FILE *));
#endif
#ifdef HAIFA
extern void fix_sched_param PROTO ((char *, char *));
#endif
extern void debug_rtx PROTO ((rtx));
extern void debug_rtx_list PROTO ((rtx, int));
extern rtx debug_rtx_find PROTO ((rtx, int));
#ifdef BUFSIZ
extern void print_rtl PROTO ((FILE *, rtx));
extern int print_rtl_single PROTO ((FILE *, rtx));
extern void print_inline_rtx PROTO ((FILE *, rtx, int));
#endif
extern void init_loop PROTO ((void));
extern rtx libcall_other_reg PROTO ((rtx, rtx));
#ifdef BUFSIZ
extern void loop_optimize PROTO ((rtx, FILE *, int, int));
#endif
extern void record_excess_regs PROTO ((rtx, rtx, rtx *));
extern void reposition_prologue_and_epilogue_notes PROTO ((rtx));
extern void thread_prologue_and_epilogue_insns PROTO ((rtx));
extern void use_variable PROTO ((rtx));
extern HOST_WIDE_INT get_frame_size PROTO ((void));
extern void preserve_rtl_expr_result PROTO ((rtx));
extern void mark_temp_addr_taken PROTO ((rtx));
extern void update_temp_slot_address PROTO ((rtx, rtx));
extern void use_variable_after PROTO ((rtx, rtx));
extern void purge_addressof PROTO ((rtx));
extern int operands_match_p PROTO ((rtx, rtx));
extern int safe_from_earlyclobber PROTO ((rtx, rtx));
extern void expand_null_return PROTO((void));
extern void emit_jump PROTO ((rtx));
extern int preserve_subexpressions_p PROTO ((void));
extern rtx nonlocal_goto_handler_labels;
extern void init_expr_once PROTO ((void));
extern void move_by_pieces PROTO ((rtx, rtx, int, int));
#ifdef BUFSIZ
extern void stupid_life_analysis PROTO ((rtx, int, FILE *));
#endif
extern void allocate_bb_life_data PROTO ((void));
extern void allocate_reg_life_data PROTO ((void));
extern void recompute_reg_usage PROTO ((rtx, int));
#ifdef BUFSIZ
extern void dump_flow_info PROTO ((FILE *));
#endif
extern void free_bb_mem PROTO ((void));
extern void init_expmed PROTO ((void));
extern void expand_inc PROTO ((rtx, rtx));
extern void expand_dec PROTO ((rtx, rtx));
extern rtx expand_mult_highpart PROTO ((enum machine_mode, rtx,
unsigned HOST_WIDE_INT, rtx,
int, int));
#ifdef BUFSIZ
extern int gcse_main PROTO ((rtx, FILE *));
#endif
extern void mark_elimination PROTO ((int, int));
#ifdef BUFSIZ
extern int global_alloc PROTO ((FILE *));
extern void dump_global_regs PROTO ((FILE *));
#endif
#ifdef HARD_CONST
extern void retry_global_alloc PROTO ((int, HARD_REG_SET));
#endif
extern int reg_classes_intersect_p PROTO ((enum reg_class, enum reg_class));
extern int reg_class_subset_p PROTO ((enum reg_class, enum reg_class));
extern void globalize_reg PROTO ((int));
extern void init_regs PROTO ((void));
extern void init_reg_sets PROTO ((void));
extern void regset_release_memory PROTO ((void));
extern void regclass_init PROTO ((void));
extern void regclass PROTO ((rtx, int));
extern void reg_scan PROTO ((rtx, int, int));
extern void reg_scan_update PROTO ((rtx, rtx, int));
extern void fix_register PROTO ((char *, int, int));
#ifdef BUFSIZ
extern void regmove_optimize PROTO ((rtx, int, FILE *));
#endif
#ifdef BUFSIZ
extern void dbr_schedule PROTO ((rtx, FILE *));
#endif
extern void init_optabs PROTO ((void));
#ifdef BUFSIZ
extern void dump_local_alloc PROTO ((FILE *));
#endif
extern int local_alloc PROTO ((void));
extern int function_invariant_p PROTO ((rtx));
extern void reload_cse_regs PROTO ((rtx));
extern void init_reload PROTO ((void));
extern void mark_home_live PROTO ((int));
#ifdef BUFSIZ
extern int reload PROTO ((rtx, int, FILE *));
#endif
extern void init_caller_save PROTO ((void));
extern void init_branch_prob PROTO ((const char *));
#ifdef BUFSIZ
extern void branch_prob PROTO ((rtx, FILE *));
extern void end_branch_prob PROTO ((FILE *));
#endif
extern void output_func_start_profiler PROTO ((void));
#ifdef BUFSIZ
extern void reg_to_stack PROTO ((rtx, FILE *));
#endif
extern int stack_regs_mentioned_p PROTO ((rtx));
extern int add_double PROTO ((HOST_WIDE_INT, HOST_WIDE_INT,
HOST_WIDE_INT, HOST_WIDE_INT,
HOST_WIDE_INT *, HOST_WIDE_INT *));
extern int neg_double PROTO ((HOST_WIDE_INT, HOST_WIDE_INT,
HOST_WIDE_INT *, HOST_WIDE_INT *));
extern int mul_double PROTO ((HOST_WIDE_INT, HOST_WIDE_INT,
HOST_WIDE_INT, HOST_WIDE_INT,
HOST_WIDE_INT *, HOST_WIDE_INT *));
extern void lshift_double PROTO ((HOST_WIDE_INT, HOST_WIDE_INT,
HOST_WIDE_INT, int, HOST_WIDE_INT *,
HOST_WIDE_INT *, int));
extern void rshift_double PROTO ((HOST_WIDE_INT, HOST_WIDE_INT,
HOST_WIDE_INT, int,
HOST_WIDE_INT *, HOST_WIDE_INT *, int));
extern void lrotate_double PROTO ((HOST_WIDE_INT, HOST_WIDE_INT,
HOST_WIDE_INT, int, HOST_WIDE_INT *,
HOST_WIDE_INT *));
extern void rrotate_double PROTO ((HOST_WIDE_INT, HOST_WIDE_INT,
HOST_WIDE_INT, int, HOST_WIDE_INT *,
HOST_WIDE_INT *));
extern void emit_library_call PVPROTO ((rtx, int, enum machine_mode,
int, ...));
extern rtx emit_library_call_value PVPROTO((rtx, rtx, int,
enum machine_mode,
int, ...));
extern int set_dominates_use PROTO ((int, int, int, rtx, rtx));
extern void bss_section PROTO ((void));
extern int in_data_section PROTO ((void));
extern int supports_one_only PROTO ((void));
extern void init_rtl PROTO ((void));
extern void rtx_free PROTO ((rtx));
extern int true_dependence PROTO ((rtx, enum machine_mode, rtx,
int (*)(rtx)));
extern int read_dependence PROTO ((rtx, rtx));
extern int anti_dependence PROTO ((rtx, rtx));
extern int output_dependence PROTO ((rtx, rtx));
extern void init_alias_once PROTO ((void));
extern void init_alias_analysis PROTO ((void));
extern void end_alias_analysis PROTO ((void));
extern void record_base_value PROTO ((int, rtx, int));
extern void record_alias_subset PROTO ((int, int));
extern rtx addr_side_effect_eval PROTO ((rtx, int, int));
#ifdef STACK_REGS
extern int stack_regs_mentioned PROTO((rtx insn));
#endif
#endif