/* Register Transfer Language (RTL) definitions for GCC
Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Free Software Foundation, Inc.
This file is part of GCC.
} mem_attrs;
/* Structure used to describe the attributes of a REG in similar way as
- mem_attrs does for MEM above. */
+ mem_attrs does for MEM above. Note that the OFFSET field is calculated
+ in the same way as for mem_attrs, rather than in the same way as a
+ SUBREG_BYTE. For example, if a big-endian target stores a byte
+ object in the low part of a 4-byte register, the OFFSET field
+ will be -3 rather than 0. */
typedef struct reg_attrs GTY(())
{
1 in a REG expression if corresponds to a variable declared by the user,
0 for an internally generated temporary.
1 in a SUBREG with a negative value.
- 1 in a LABEL_REF or in a REG_LABEL note for a non-local label.
+ 1 in a LABEL_REF, REG_LABEL_TARGET or REG_LABEL_OPERAND note for a
+ non-local label.
In a SYMBOL_REF, this flag is used for machine-specific purposes. */
unsigned int volatil : 1;
/* 1 in a MEM referring to a field of an aggregate.
&_rtx->u.rv; })
#define XCNMPFV(RTX, C, M) __extension__ \
-({ rtx const _rtx = (RTX); \
+({ __typeof (RTX) const _rtx = (RTX); \
if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) == (M)) \
rtl_check_failed_code_mode (_rtx, (C), (M), true, __FILE__, \
__LINE__, __FUNCTION__); \
unsigned int, enum machine_mode);
extern unsigned int subreg_regno (const_rtx);
extern unsigned int subreg_nregs (const_rtx);
+extern unsigned int subreg_nregs_with_regno (unsigned int, const_rtx);
extern unsigned HOST_WIDE_INT nonzero_bits (const_rtx, enum machine_mode);
extern unsigned int num_sign_bit_copies (const_rtx, enum machine_mode);
extern bool constant_pool_constant_p (rtx);
XSTR (XCVECEXP (RTX, 4, N, ASM_OPERANDS), 0)
#define ASM_OPERANDS_INPUT_MODE(RTX, N) \
GET_MODE (XCVECEXP (RTX, 4, N, ASM_OPERANDS))
-#ifdef USE_MAPPED_LOCATION
#define ASM_OPERANDS_SOURCE_LOCATION(RTX) XCUINT (RTX, 5, ASM_OPERANDS)
#define ASM_INPUT_SOURCE_LOCATION(RTX) XCUINT (RTX, 1, ASM_INPUT)
-#else
-#define ASM_OPERANDS_SOURCE_FILE(RTX) XCSTR (RTX, 5, ASM_OPERANDS)
-#define ASM_OPERANDS_SOURCE_LINE(RTX) XCINT (RTX, 6, ASM_OPERANDS)
-#define ASM_INPUT_SOURCE_FILE(RTX) XCSTR (RTX, 1, ASM_INPUT)
-#define ASM_INPUT_SOURCE_LINE(RTX) XCINT (RTX, 2, ASM_INPUT)
-#endif
/* 1 if RTX is a mem that is statically allocated in read-only memory. */
#define MEM_READONLY_P(RTX) \
refer to part of a DECL. */
#define REG_EXPR(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->decl)
-/* For a MEM rtx, the offset from the start of MEM_DECL, if known, as a
- RTX that is always a CONST_INT. */
+/* For a REG rtx, the offset from the start of REG_EXPR, if known, as an
+ HOST_WIDE_INT. */
#define REG_OFFSET(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->offset)
/* Copy the attributes that apply to memory locations from RHS to LHS. */
MEM_ATTRS (LHS) = MEM_ATTRS (RHS))
/* 1 if RTX is a label_ref for a nonlocal label. */
-/* Likewise in an expr_list for a reg_label note. */
+/* Likewise in an expr_list for a REG_LABEL_OPERAND or
+ REG_LABEL_TARGET note. */
#define LABEL_REF_NONLOCAL_P(RTX) \
- (RTL_FLAG_CHECK2("LABEL_REF_NONLOCAL_P", (RTX), LABEL_REF, \
- REG_LABEL)->volatil)
+ (RTL_FLAG_CHECK3("LABEL_REF_NONLOCAL_P", (RTX), LABEL_REF, \
+ REG_LABEL_OPERAND, REG_LABEL_TARGET)->volatil)
/* 1 if RTX is a code_label that should always be considered to be needed. */
#define LABEL_PRESERVE_P(RTX) \
extern rtx copy_insn (rtx);
extern rtx gen_int_mode (HOST_WIDE_INT, enum machine_mode);
extern rtx emit_copy_of_insn_after (rtx, rtx);
-extern void set_reg_attrs_from_mem (rtx, rtx);
+extern void set_reg_attrs_from_value (rtx, rtx);
extern void set_mem_attrs_from_reg (rtx, rtx);
extern void set_reg_attrs_for_parm (rtx, rtx);
+extern void adjust_reg_mode (rtx, enum machine_mode);
extern int mem_expr_equal_p (const_tree, const_tree);
/* In rtl.c */
enum machine_mode);
extern unsigned int subreg_highpart_offset (enum machine_mode,
enum machine_mode);
+extern int byte_lowpart_offset (enum machine_mode, enum machine_mode);
extern rtx make_safe_from (rtx, rtx);
extern rtx convert_memory_address (enum machine_mode, rtx);
extern rtx get_insns (void);
extern void add_function_usage_to (rtx, rtx);
extern rtx last_call_insn (void);
extern rtx previous_insn (rtx);
-extern const_rtx const_previous_insn (const_rtx);
extern rtx next_insn (rtx);
-extern const_rtx const_next_insn (const_rtx);
extern rtx prev_nonnote_insn (rtx);
-extern const_rtx const_prev_nonnote_insn (const_rtx);
extern rtx next_nonnote_insn (rtx);
-extern const_rtx const_next_nonnote_insn (const_rtx);
extern rtx prev_real_insn (rtx);
-extern const_rtx const_prev_real_insn (const_rtx);
extern rtx next_real_insn (rtx);
-extern const_rtx const_next_real_insn (const_rtx);
extern rtx prev_active_insn (rtx);
-extern const_rtx const_prev_active_insn (const_rtx);
extern rtx next_active_insn (rtx);
-extern const_rtx const_next_active_insn (const_rtx);
extern int active_insn_p (const_rtx);
extern rtx prev_label (rtx);
-extern const_rtx const_prev_label (const_rtx);
extern rtx next_label (rtx);
-extern const_rtx const_next_label (const_rtx);
extern rtx skip_consecutive_labels (rtx);
extern rtx next_cc0_user (rtx);
extern rtx prev_cc0_setter (rtx);
extern int reg_overlap_mentioned_p (const_rtx, const_rtx);
extern const_rtx set_of (const_rtx, const_rtx);
extern void note_stores (const_rtx, void (*) (rtx, const_rtx, void *), void *);
-extern void const_note_stores (const_rtx, void (*) (const_rtx, const_rtx, const void *), const void *);
extern void note_uses (rtx *, void (*) (rtx *, void *), void *);
extern int dead_or_set_p (const_rtx, const_rtx);
extern int dead_or_set_regno_p (const_rtx, unsigned int);
extern int side_effects_p (const_rtx);
extern int volatile_refs_p (const_rtx);
extern int volatile_insn_p (const_rtx);
+extern int may_trap_p_1 (const_rtx, unsigned);
extern int may_trap_p (const_rtx);
extern int may_trap_after_code_motion_p (const_rtx);
extern int may_trap_or_fault_p (const_rtx);
#ifndef GENERATOR_FILE
#include "genrtl.h"
#undef gen_rtx_ASM_INPUT
-#ifdef USE_MAPPED_LOCATION
#define gen_rtx_ASM_INPUT(MODE, ARG0) \
gen_rtx_fmt_si (ASM_INPUT, (MODE), (ARG0), 0)
#define gen_rtx_ASM_INPUT_loc(MODE, ARG0, LOC) \
gen_rtx_fmt_si (ASM_INPUT, (MODE), (ARG0), (LOC))
-#else
-#define gen_rtx_ASM_INPUT(MODE, ARG0) \
- gen_rtx_fmt_ssi (ASM_INPUT, (MODE), (ARG0), "", 0)
-#define gen_rtx_ASM_INPUT_loc(MODE, ARG0, LOC) \
- gen_rtx_fmt_ssi (ASM_INPUT, (MODE), (ARG0), (LOC).file, (LOC).line)
-#undef gen_rtx_ASM_OPERANDS
-#define gen_rtx_ASM_OPERANDS(MODE, ARG0, ARG1, ARG2, ARG3, ARG4, LOC) \
- gen_rtx_fmt_ssiEEsi (ASM_OPERANDS, (MODE), (ARG0), (ARG1), (ARG2), (ARG3), (ARG4), (LOC).file, (LOC).line)
-#endif
#endif
/* There are some RTL codes that require special attention; the
extern int in_sequence_p (void);
extern void force_next_line_note (void);
extern void init_emit (void);
+extern void init_emit_regs (void);
extern void init_emit_once (int);
extern void push_topmost_sequence (void);
extern void pop_topmost_sequence (void);
extern void delete_insn_chain (rtx, rtx, bool);
extern rtx unlink_insn_chain (rtx, rtx);
extern rtx delete_insn_and_edges (rtx);
+extern void delete_insn_chain_and_edges (rtx, rtx);
extern rtx gen_lowpart_SUBREG (enum machine_mode, rtx);
extern rtx gen_const_mem (enum machine_mode, rtx);
extern rtx gen_frame_mem (enum machine_mode, rtx);
extern void delete_dead_jumptables (void);
/* In sched-vis.c. */
+extern void print_insn (char *, rtx, int);
extern void print_rtl_slim_with_bb (FILE *, rtx, int);
extern void dump_insn_slim (FILE *f, rtx x);
extern void debug_insn_slim (rtx x);
/* Yes, this ifdef is silly, but HARD_REG_SET is not always defined. */
extern void retry_global_alloc (int, HARD_REG_SET);
#endif
-extern void build_insn_chain (rtx);
/* In regclass.c */
extern int reg_classes_intersect_p (enum reg_class, enum reg_class);
extern int reg_class_subset_p (enum reg_class, enum reg_class);
extern void globalize_reg (int);
-extern void init_reg_modes_once (void);
+extern void init_reg_modes_target (void);
extern void init_regs (void);
extern void init_fake_stack_mems (void);
+extern void save_register_info (void);
extern void init_reg_sets (void);
extern void regclass (rtx, int);
extern void reg_scan (rtx, unsigned int);
extern int read_dependence (const_rtx, const_rtx);
extern int anti_dependence (const_rtx, const_rtx);
extern int output_dependence (const_rtx, const_rtx);
-extern void init_alias_once (void);
+extern void init_alias_target (void);
extern void init_alias_analysis (void);
extern void end_alias_analysis (void);
extern bool memory_modified_in_insn_p (const_rtx, const_rtx);
extern bool expensive_function_p (int);
/* In cfgexpand.c */
extern void add_reg_br_prob_note (rtx last, int probability);
-/* In tracer.c */
-extern void tracer (void);
/* In var-tracking.c */
extern unsigned int variable_tracking_main (void);
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