/* Register Transfer Language (RTL) definitions for GNU C-Compiler
Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of GCC.
#undef PC /* Likewise. */
/* Value used by some passes to "recognize" noop moves as valid
- instructions. */
+ instructions. */
#define NOOP_MOVE_INSN_CODE INT_MAX
/* Register Transfer Language EXPRESSIONS CODES */
NUM_RTX_CODE.
Assumes default enum value assignment. */
-#define NUM_RTX_CODE ((int)LAST_AND_UNUSED_RTX_CODE)
+#define NUM_RTX_CODE ((int) LAST_AND_UNUSED_RTX_CODE)
/* The cast here, saves many elsewhere. */
-extern const int rtx_length[];
+extern const unsigned char rtx_length[NUM_RTX_CODE];
#define GET_RTX_LENGTH(CODE) (rtx_length[(int) (CODE)])
-extern const char * const rtx_name[];
+extern const char * const rtx_name[NUM_RTX_CODE];
#define GET_RTX_NAME(CODE) (rtx_name[(int) (CODE)])
-extern const char * const rtx_format[];
+extern const char * const rtx_format[NUM_RTX_CODE];
#define GET_RTX_FORMAT(CODE) (rtx_format[(int) (CODE)])
-extern const char rtx_class[];
+extern const char rtx_class[NUM_RTX_CODE];
#define GET_RTX_CLASS(CODE) (rtx_class[(int) (CODE)])
\f
/* The flags and bitfields of an ADDR_DIFF_VEC. BASE is the base label
the value of the corresponding attribute is unknown. */
typedef struct
{
- HOST_WIDE_INT alias; /* Memory alias set. */
- tree decl; /* decl corresponding to MEM. */
- rtx offset; /* Offset from start of DECL, as CONST_INT. */
+ HOST_WIDE_INT alias; /* Memory alias set. */
+ tree expr; /* expr corresponding to MEM. */
+ rtx offset; /* Offset from start of DECL, as CONST_INT. */
rtx size; /* Size in bytes, as a CONST_INT. */
- unsigned int align; /* Alignment of MEM in bytes. */
+ unsigned int align; /* Alignment of MEM in bits. */
} mem_attrs;
/* Common union for an element of an rtx. */
/* 1 in an INSN if it can alter flow of control
within this function.
- LINK_COST_ZERO in an INSN_LIST. */
+ MEM_KEEP_ALIAS_SET_P in a MEM.
+ LINK_COST_ZERO in an INSN_LIST.
+ SET_IS_RETURN_P in a SET. */
unsigned int jump : 1;
/* 1 in an INSN if it can call another function.
LINK_COST_FREE in an INSN_LIST. */
from the target of a branch. Valid from reorg until end of compilation;
cleared before used.
1 in an INSN if this insn is dead code. Valid only during
- dead-code elimination phase; cleared before use. */
+ dead-code elimination phase; cleared before use. */
unsigned int in_struct : 1;
/* 1 if this rtx is used. This is used for copying shared structure.
See `unshare_all_rtl'.
(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)
/* General accessor macros for accessing the fields of an rtx. */
(*({ rtx _rtx = (RTX); int _n = (N); \
enum rtx_code _code = GET_CODE (_rtx); \
if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
- rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, __FUNCTION__); \
+ rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
+ __FUNCTION__); \
if (GET_RTX_FORMAT(_code)[_n] != C1) \
- rtl_check_failed_type1(_rtx, _n, C1, __FILE__, __LINE__, __FUNCTION__); \
+ rtl_check_failed_type1 (_rtx, _n, C1, __FILE__, __LINE__, \
+ __FUNCTION__); \
&_rtx->fld[_n]; }))
#define RTL_CHECK2(RTX, N, C1, C2) __extension__ \
(*({ rtx _rtx = (RTX); int _n = (N); \
enum rtx_code _code = GET_CODE (_rtx); \
if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
- rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, __FUNCTION__); \
+ rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
+ __FUNCTION__); \
if (GET_RTX_FORMAT(_code)[_n] != C1 \
&& GET_RTX_FORMAT(_code)[_n] != C2) \
rtl_check_failed_type2 (_rtx, _n, C1, C2, __FILE__, __LINE__, \
#define RTL_CHECKC1(RTX, N, C) __extension__ \
(*({ rtx _rtx = (RTX); int _n = (N); \
- if (GET_CODE (_rtx) != C) \
- rtl_check_failed_code1 (_rtx, C, __FILE__, __LINE__, __FUNCTION__); \
+ if (GET_CODE (_rtx) != (C)) \
+ rtl_check_failed_code1 (_rtx, (C), __FILE__, __LINE__, \
+ __FUNCTION__); \
&_rtx->fld[_n]; }))
#define RTL_CHECKC2(RTX, N, C1, C2) __extension__ \
(*({ rtx _rtx = (RTX); int _n = (N); \
enum rtx_code _code = GET_CODE (_rtx); \
- if (_code != C1 && _code != C2) \
- rtl_check_failed_code2(_rtx, C1, C2, __FILE__, __LINE__, __FUNCTION__); \
+ if (_code != (C1) && _code != (C2)) \
+ rtl_check_failed_code2 (_rtx, (C1), (C2), __FILE__, __LINE__, \
+ __FUNCTION__); \
&_rtx->fld[_n]; }))
#define RTVEC_ELT(RTVEC, I) __extension__ \
#endif
-#define XWINT(RTX, N) (RTL_CHECK1(RTX, N, 'w').rtwint)
-#define XINT(RTX, N) (RTL_CHECK2(RTX, N, 'i', 'n').rtint)
-#define XSTR(RTX, N) (RTL_CHECK2(RTX, N, 's', 'S').rtstr)
-#define XEXP(RTX, N) (RTL_CHECK2(RTX, N, 'e', 'u').rtx)
-#define XVEC(RTX, N) (RTL_CHECK2(RTX, N, 'E', 'V').rtvec)
-#define XMODE(RTX, N) (RTL_CHECK1(RTX, N, 'M').rttype)
-#define XBITMAP(RTX, N) (RTL_CHECK1(RTX, N, 'b').rtbit)
-#define XTREE(RTX, N) (RTL_CHECK1(RTX, N, 't').rttree)
-#define XBBDEF(RTX, N) (RTL_CHECK1(RTX, N, 'B').bb)
-#define XTMPL(RTX, N) (RTL_CHECK1(RTX, N, 'T').rtstr)
+#define XWINT(RTX, N) (RTL_CHECK1 (RTX, N, 'w').rtwint)
+#define XINT(RTX, N) (RTL_CHECK2 (RTX, N, 'i', 'n').rtint)
+#define XSTR(RTX, N) (RTL_CHECK2 (RTX, N, 's', 'S').rtstr)
+#define XEXP(RTX, N) (RTL_CHECK2 (RTX, N, 'e', 'u').rtx)
+#define XVEC(RTX, N) (RTL_CHECK2 (RTX, N, 'E', 'V').rtvec)
+#define XMODE(RTX, N) (RTL_CHECK1 (RTX, N, 'M').rttype)
+#define XBITMAP(RTX, N) (RTL_CHECK1 (RTX, N, 'b').rtbit)
+#define XTREE(RTX, N) (RTL_CHECK1 (RTX, N, 't').rttree)
+#define XBBDEF(RTX, N) (RTL_CHECK1 (RTX, N, 'B').bb)
+#define XTMPL(RTX, N) (RTL_CHECK1 (RTX, N, 'T').rtstr)
#define XVECEXP(RTX, N, M) RTVEC_ELT (XVEC (RTX, N), M)
#define XVECLEN(RTX, N) GET_NUM_ELEM (XVEC (RTX, N))
/* These are like XWINT, etc. except that they expect a '0' field instead
of the normal type code. */
-#define X0WINT(RTX, N) (RTL_CHECK1(RTX, N, '0').rtwint)
-#define X0INT(RTX, N) (RTL_CHECK1(RTX, N, '0').rtint)
-#define X0UINT(RTX, N) (RTL_CHECK1(RTX, N, '0').rtuint)
-#define X0STR(RTX, N) (RTL_CHECK1(RTX, N, '0').rtstr)
-#define X0EXP(RTX, N) (RTL_CHECK1(RTX, N, '0').rtx)
-#define X0VEC(RTX, N) (RTL_CHECK1(RTX, N, '0').rtvec)
-#define X0MODE(RTX, N) (RTL_CHECK1(RTX, N, '0').rttype)
-#define X0BITMAP(RTX, N) (RTL_CHECK1(RTX, N, '0').rtbit)
-#define X0TREE(RTX, N) (RTL_CHECK1(RTX, N, '0').rttree)
-#define X0BBDEF(RTX, N) (RTL_CHECK1(RTX, N, '0').bb)
-#define X0ADVFLAGS(RTX, N) (RTL_CHECK1(RTX, N, '0').rt_addr_diff_vec_flags)
-#define X0CSELIB(RTX, N) (RTL_CHECK1(RTX, N, '0').rt_cselib)
-#define X0MEMATTR(RTX, N) (RTL_CHECK1(RTX, N, '0').rtmem)
-
-#define XCWINT(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtwint)
-#define XCINT(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtint)
-#define XCUINT(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtuint)
-#define XCSTR(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtstr)
-#define XCEXP(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtx)
-#define XCVEC(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtvec)
-#define XCMODE(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rttype)
-#define XCBITMAP(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtbit)
-#define XCTREE(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rttree)
-#define XCBBDEF(RTX, N, C) (RTL_CHECKC1(RTX, N, C).bb)
-#define XCADVFLAGS(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rt_addr_diff_vec_flags)
-#define XCCSELIB(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rt_cselib)
+#define X0WINT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtwint)
+#define X0INT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtint)
+#define X0UINT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtuint)
+#define X0STR(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtstr)
+#define X0EXP(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtx)
+#define X0VEC(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtvec)
+#define X0MODE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rttype)
+#define X0BITMAP(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtbit)
+#define X0TREE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rttree)
+#define X0BBDEF(RTX, N) (RTL_CHECK1 (RTX, N, '0').bb)
+#define X0ADVFLAGS(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_addr_diff_vec_flags)
+#define X0CSELIB(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_cselib)
+#define X0MEMATTR(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtmem)
+
+#define XCWINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtwint)
+#define XCINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtint)
+#define XCUINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtuint)
+#define XCSTR(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtstr)
+#define XCEXP(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtx)
+#define XCVEC(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtvec)
+#define XCMODE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rttype)
+#define XCBITMAP(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtbit)
+#define XCTREE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rttree)
+#define XCBBDEF(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).bb)
+#define XCADVFLAGS(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_addr_diff_vec_flags)
+#define XCCSELIB(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_cselib)
#define XCVECEXP(RTX, N, M, C) RTVEC_ELT (XCVEC (RTX, N, C), M)
#define XCVECLEN(RTX, N, C) GET_NUM_ELEM (XCVEC (RTX, N, C))
-#define XC2EXP(RTX, N, C1, C2) (RTL_CHECKC2(RTX, N, C1, C2).rtx)
+#define XC2EXP(RTX, N, C1, C2) (RTL_CHECKC2 (RTX, N, C1, C2).rtx)
\f
/* ACCESS MACROS for particular fields of insns. */
/* Holds a unique number for each insn.
These are not necessarily sequentially increasing. */
-#define INSN_UID(INSN) XINT(INSN, 0)
+#define INSN_UID(INSN) XINT (INSN, 0)
/* Chain insns together in sequence. */
-#define PREV_INSN(INSN) XEXP(INSN, 1)
-#define NEXT_INSN(INSN) XEXP(INSN, 2)
+#define PREV_INSN(INSN) XEXP (INSN, 1)
+#define NEXT_INSN(INSN) XEXP (INSN, 2)
/* The body of an insn. */
-#define PATTERN(INSN) XEXP(INSN, 3)
+#define PATTERN(INSN) XEXP (INSN, 3)
/* Code number of instruction, from when it was recognized.
-1 means this instruction has not been recognized yet. */
-#define INSN_CODE(INSN) XINT(INSN, 4)
+#define INSN_CODE(INSN) XINT (INSN, 4)
/* Set up in flow.c; empty before then.
Holds a chain of INSN_LIST rtx's whose first operands point at
#define SIBLING_CALL_P(INSN) ((INSN)->jump)
/* 1 if insn is a branch that should not unconditionally execute its
- delay slots, i.e., it is an annulled branch. */
+ delay slots, i.e., it is an annulled branch. */
#define INSN_ANNULLED_BRANCH_P(INSN) ((INSN)->unchanging)
-/* 1 if insn is a dead code. Valid only for dead-code elimination phase. */
+/* 1 if insn is a dead code. Valid only for dead-code elimination phase. */
#define INSN_DEAD_CODE_P(INSN) ((INSN)->in_struct)
/* 1 if insn is in a delay slot and is from the target of the branch. If
REG_SETJMP,
/* Indicate calls that always returns. */
- REG_ALWAYS_RETURN
+ REG_ALWAYS_RETURN,
+
+ /* Indicate that the memory load references a vtable. The expression
+ is of the form (plus (symbol_ref vtable_sym) (const_int offset)). */
+ REG_VTABLE_REF
};
/* The base value for branch probability notes. */
/* Define macros to extract and insert the reg-note kind in an EXPR_LIST. */
#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))
+#define PUT_REG_NOTE_KIND(LINK, KIND) \
+ PUT_MODE (LINK, (enum machine_mode) (KIND))
/* Names for REG_NOTE's in EXPR_LIST insn's. */
/* The label-number of a code-label. The assembler label
is made from `L' and the label-number printed in decimal.
Label numbers are unique in a compilation. */
-#define CODE_LABEL_NUMBER(INSN) XINT(INSN, 5)
+#define CODE_LABEL_NUMBER(INSN) XINT (INSN, 5)
#define LINE_NUMBER NOTE
NOTE_INSN_BLOCK_BEG and NOTE_INSN_BLOCK_END notes. (We avoid lots of casts
between ints and pointers if we use a different macro for the block number.)
The NOTE_INSN_RANGE_{START,END} and NOTE_INSN_LIVE notes record their
- information as a rtx in the field. */
+ information as an rtx in the field. */
-#define NOTE_SOURCE_FILE(INSN) XCSTR(INSN, 3, NOTE)
-#define NOTE_BLOCK(INSN) XCTREE(INSN, 3, NOTE)
-#define NOTE_EH_HANDLER(INSN) XCINT(INSN, 3, NOTE)
-#define NOTE_RANGE_INFO(INSN) XCEXP(INSN, 3, NOTE)
-#define NOTE_LIVE_INFO(INSN) XCEXP(INSN, 3, NOTE)
-#define NOTE_BASIC_BLOCK(INSN) XCBBDEF(INSN, 3, NOTE)
-#define NOTE_EXPECTED_VALUE(INSN) XCEXP(INSN, 3, NOTE)
+#define NOTE_SOURCE_FILE(INSN) XCSTR (INSN, 3, NOTE)
+#define NOTE_BLOCK(INSN) XCTREE (INSN, 3, NOTE)
+#define NOTE_EH_HANDLER(INSN) XCINT (INSN, 3, NOTE)
+#define NOTE_RANGE_INFO(INSN) XCEXP (INSN, 3, NOTE)
+#define NOTE_LIVE_INFO(INSN) XCEXP (INSN, 3, NOTE)
+#define NOTE_BASIC_BLOCK(INSN) XCBBDEF (INSN, 3, NOTE)
+#define NOTE_EXPECTED_VALUE(INSN) XCEXP (INSN, 3, NOTE)
/* In a NOTE that is a line number, this is the line number.
Other kinds of NOTEs are identified by negative numbers here. */
-#define NOTE_LINE_NUMBER(INSN) XCINT(INSN, 4, NOTE)
+#define NOTE_LINE_NUMBER(INSN) XCINT (INSN, 4, NOTE)
/* Nonzero if INSN is a note marking the beginning of a basic block. */
#define NOTE_INSN_BASIC_BLOCK_P(INSN) \
/* Generated at the start of a duplicated exit test. */
NOTE_INSN_LOOP_VTOP,
+ /* Generated at the end of a conditional at the top of the loop.
+ This is used to perform a lame form of loop rotation in lieu
+ of actually understanding the loop structure. The note is
+ discarded after rotation is complete. */
+ NOTE_INSN_LOOP_END_TOP_COND,
+
/* This kind of note is generated at the end of the function body,
just before the return insn or return label. In an optimizing
compilation it is deleted by the first jump optimization, after
/* Generated whenever a duplicate line number note is output. For example,
one is output after the end of an inline function, in order to prevent
- the line containing the inline call from being counted twice in gcov. */
+ the line containing the inline call from being counted twice in gcov. */
NOTE_INSN_REPEATED_LINE_NUMBER,
/* Start/end of a live range region, where pseudos allocated on the stack
/* Record which registers are currently live. Uses NOTE_LIVE_INFO. */
NOTE_INSN_LIVE,
- /* Record the struct for the following basic block. Uses NOTE_BASIC_BLOCK. */
+ /* Record the struct for the following basic block. Uses NOTE_BASIC_BLOCK. */
NOTE_INSN_BASIC_BLOCK,
/* Record the expected value of a register at a location. Uses
/* The name of a label, in case it corresponds to an explicit label
in the input source code. */
-#define LABEL_NAME(RTX) XCSTR(RTX, 6, CODE_LABEL)
+#define LABEL_NAME(RTX) XCSTR (RTX, 6, CODE_LABEL)
/* In jump.c, each label contains a count of the number
of LABEL_REFs that point at it, so unused labels can be deleted. */
-#define LABEL_NUSES(RTX) XCINT(RTX, 3, CODE_LABEL)
+#define LABEL_NUSES(RTX) XCINT (RTX, 3, CODE_LABEL)
/* Associate a name with a CODE_LABEL. */
-#define LABEL_ALTERNATE_NAME(RTX) XCSTR(RTX, 7, CODE_LABEL)
+#define LABEL_ALTERNATE_NAME(RTX) XCSTR (RTX, 7, CODE_LABEL)
/* The original regno this ADDRESSOF was built for. */
-#define ADDRESSOF_REGNO(RTX) XCUINT(RTX, 1, ADDRESSOF)
+#define ADDRESSOF_REGNO(RTX) XCUINT (RTX, 1, ADDRESSOF)
/* The variable in the register we took the address of. */
-#define ADDRESSOF_DECL(RTX) XCTREE(RTX, 2, ADDRESSOF)
+#define ADDRESSOF_DECL(RTX) XCTREE (RTX, 2, ADDRESSOF)
/* In jump.c, each JUMP_INSN can point to a label that it can jump to,
so that if the JUMP_INSN is deleted, the label's LABEL_NUSES can
be decremented and possibly the label can be deleted. */
-#define JUMP_LABEL(INSN) XCEXP(INSN, 7, JUMP_INSN)
+#define JUMP_LABEL(INSN) XCEXP (INSN, 7, JUMP_INSN)
/* Once basic blocks are found in flow.c,
each CODE_LABEL starts a chain that goes through
all the LABEL_REFs that jump to that label.
The chain eventually winds up at the CODE_LABEL: it is circular. */
-#define LABEL_REFS(LABEL) XCEXP(LABEL, 4, CODE_LABEL)
+#define LABEL_REFS(LABEL) XCEXP (LABEL, 4, CODE_LABEL)
\f
/* This is the field in the LABEL_REF through which the circular chain
of references to a particular label is linked.
This chain is set up in flow.c. */
-#define LABEL_NEXTREF(REF) XCEXP(REF, 1, LABEL_REF)
+#define LABEL_NEXTREF(REF) XCEXP (REF, 1, LABEL_REF)
/* Once basic blocks are found in flow.c,
Each LABEL_REF points to its containing instruction with this field. */
-#define CONTAINING_INSN(RTX) XCEXP(RTX, 2, LABEL_REF)
+#define CONTAINING_INSN(RTX) XCEXP (RTX, 2, LABEL_REF)
/* For a REG rtx, REGNO extracts the register number. ORIGINAL_REGNO holds
the number the register originally had; for a pseudo register turned into
a hard reg this will hold the old pseudo register number. */
-#define REGNO(RTX) XCUINT(RTX, 0, REG)
-#define ORIGINAL_REGNO(RTX) X0UINT(RTX, 1)
+#define REGNO(RTX) XCUINT (RTX, 0, REG)
+#define ORIGINAL_REGNO(RTX) X0UINT (RTX, 1)
/* For a REG rtx, REG_FUNCTION_VALUE_P is nonzero if the reg
is the current function's return value. */
#define HARD_REGISTER_P(REG) (HARD_REGISTER_NUM_P (REGNO (REG)))
/* 1 if the given register number REG_NO corresponds to a hard register. */
-#define HARD_REGISTER_NUM_P(REG_NO) (REG_NO < FIRST_PSEUDO_REGISTER)
+#define HARD_REGISTER_NUM_P(REG_NO) ((REG_NO) < FIRST_PSEUDO_REGISTER)
/* For a CONST_INT rtx, INTVAL extracts the integer. */
For a float, the number of ints varies,
and CONST_DOUBLE_LOW is the one that should come first *in memory*.
So use &CONST_DOUBLE_LOW(r) as the address of an array of ints. */
-#define CONST_DOUBLE_LOW(r) XCWINT (r, 2, CONST_DOUBLE)
-#define CONST_DOUBLE_HIGH(r) XCWINT (r, 3, CONST_DOUBLE)
+#define CONST_DOUBLE_LOW(r) XCWINT (r, 1, CONST_DOUBLE)
+#define CONST_DOUBLE_HIGH(r) XCWINT (r, 2, CONST_DOUBLE)
/* Link for chain of all CONST_DOUBLEs in use in current function. */
-#define CONST_DOUBLE_CHAIN(r) XCEXP (r, 1, CONST_DOUBLE)
-/* The MEM which represents this CONST_DOUBLE's value in memory,
- or const0_rtx if no MEM has been made for it yet,
- or cc0_rtx if it is not on the chain. */
-#define CONST_DOUBLE_MEM(r) XCEXP (r, 0, CONST_DOUBLE)
+#define CONST_DOUBLE_CHAIN(r) XCEXP (r, 0, CONST_DOUBLE)
+
+/* For a CONST_VECTOR, return element #n. */
+#define CONST_VECTOR_ELT(RTX, N) XCVECEXP (RTX, 0, N, CONST_VECTOR)
+
+/* For a CONST_VECTOR, return the number of elements in a vector. */
+#define CONST_VECTOR_NUNITS(RTX) XCVECLEN (RTX, 0, CONST_VECTOR)
/* For a SUBREG rtx, SUBREG_REG extracts the value we want a subreg of.
SUBREG_BYTE extracts the byte-number. */
-#define SUBREG_REG(RTX) XCEXP(RTX, 0, SUBREG)
-#define SUBREG_BYTE(RTX) XCUINT(RTX, 1, SUBREG)
+#define SUBREG_REG(RTX) XCEXP (RTX, 0, SUBREG)
+#define SUBREG_BYTE(RTX) XCUINT (RTX, 1, SUBREG)
/* in rtlanal.c */
+extern unsigned int subreg_lsb PARAMS ((rtx));
extern unsigned int subreg_regno_offset PARAMS ((unsigned int,
enum machine_mode,
unsigned int,
when assigning to SUBREG_REG. */
#define SUBREG_PROMOTED_VAR_P(RTX) ((RTX)->in_struct)
-#define SUBREG_PROMOTED_UNSIGNED_P(RTX) ((RTX)->unchanging)
+#define SUBREG_PROMOTED_UNSIGNED_SET(RTX, VAL) \
+do { \
+ if ((VAL) < 0) \
+ (RTX)->volatil = 1; \
+ else { \
+ (RTX)->volatil = 0; \
+ (RTX)->unchanging = (VAL); \
+ } \
+} while (0)
+#define SUBREG_PROMOTED_UNSIGNED_P(RTX) ((RTX)->volatil ? -1 : (RTX)->unchanging)
/* Access various components of an ASM_OPERANDS rtx. */
-#define ASM_OPERANDS_TEMPLATE(RTX) XCSTR ((RTX), 0, ASM_OPERANDS)
-#define ASM_OPERANDS_OUTPUT_CONSTRAINT(RTX) XCSTR ((RTX), 1, ASM_OPERANDS)
-#define ASM_OPERANDS_OUTPUT_IDX(RTX) XCINT ((RTX), 2, ASM_OPERANDS)
-#define ASM_OPERANDS_INPUT_VEC(RTX) XCVEC ((RTX), 3, ASM_OPERANDS)
-#define ASM_OPERANDS_INPUT_CONSTRAINT_VEC(RTX) XCVEC ((RTX), 4, ASM_OPERANDS)
-#define ASM_OPERANDS_INPUT(RTX, N) XCVECEXP ((RTX), 3, (N), ASM_OPERANDS)
-#define ASM_OPERANDS_INPUT_LENGTH(RTX) XCVECLEN ((RTX), 3, ASM_OPERANDS)
+#define ASM_OPERANDS_TEMPLATE(RTX) XCSTR (RTX, 0, ASM_OPERANDS)
+#define ASM_OPERANDS_OUTPUT_CONSTRAINT(RTX) XCSTR (RTX, 1, ASM_OPERANDS)
+#define ASM_OPERANDS_OUTPUT_IDX(RTX) XCINT (RTX, 2, ASM_OPERANDS)
+#define ASM_OPERANDS_INPUT_VEC(RTX) XCVEC (RTX, 3, ASM_OPERANDS)
+#define ASM_OPERANDS_INPUT_CONSTRAINT_VEC(RTX) XCVEC (RTX, 4, ASM_OPERANDS)
+#define ASM_OPERANDS_INPUT(RTX, N) XCVECEXP (RTX, 3, N, ASM_OPERANDS)
+#define ASM_OPERANDS_INPUT_LENGTH(RTX) XCVECLEN (RTX, 3, ASM_OPERANDS)
#define ASM_OPERANDS_INPUT_CONSTRAINT_EXP(RTX, N) \
- XCVECEXP ((RTX), 4, (N), ASM_OPERANDS)
+ XCVECEXP (RTX, 4, N, ASM_OPERANDS)
#define ASM_OPERANDS_INPUT_CONSTRAINT(RTX, N) \
- XSTR (XCVECEXP ((RTX), 4, (N), ASM_OPERANDS), 0)
+ XSTR (XCVECEXP (RTX, 4, N, ASM_OPERANDS), 0)
#define ASM_OPERANDS_INPUT_MODE(RTX, N) \
- GET_MODE (XCVECEXP ((RTX), 4, (N), ASM_OPERANDS))
-#define ASM_OPERANDS_SOURCE_FILE(RTX) XCSTR ((RTX), 5, ASM_OPERANDS)
-#define ASM_OPERANDS_SOURCE_LINE(RTX) XCINT ((RTX), 6, ASM_OPERANDS)
+ GET_MODE (XCVECEXP (RTX, 4, N, ASM_OPERANDS))
+#define ASM_OPERANDS_SOURCE_FILE(RTX) XCSTR (RTX, 5, ASM_OPERANDS)
+#define ASM_OPERANDS_SOURCE_LINE(RTX) XCINT (RTX, 6, ASM_OPERANDS)
+
+/* For a MEM RTX, 1 if we should keep the alias set for this mem
+ unchanged when we access a component. Set to 1, or example, when we
+ are already in a non-addressable component of an aggregate. */
+#define MEM_KEEP_ALIAS_SET_P(RTX) ((RTX)->jump)
/* For a MEM rtx, 1 if it's a volatile reference.
Also in an ASM_OPERANDS rtx. */
#define MEM_IN_STRUCT_P(RTX) ((RTX)->in_struct)
/* For a MEM rtx, 1 if it refers to a scalar. If zero, RTX may or may
- not refer to a scalar.*/
+ not refer to a scalar. */
#define MEM_SCALAR_P(RTX) ((RTX)->frame_related)
/* If VAL is non-zero, set MEM_IN_STRUCT_P and clear MEM_SCALAR_P in
RTX. Otherwise, vice versa. Use this macro only when you are
*sure* that you know that the MEM is in a structure, or is a
scalar. VAL is evaluated only once. */
-#define MEM_SET_IN_STRUCT_P(RTX, VAL) do { \
+#define MEM_SET_IN_STRUCT_P(RTX, VAL) \
+do { \
if (VAL) \
{ \
MEM_IN_STRUCT_P (RTX) = 1; \
#define MEM_ALIAS_SET(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->alias)
/* For a MEM rtx, the decl it is known to refer to, if it is known to
- refer to part of a DECL. */
-#define MEM_DECL(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->decl)
+ refer to part of a DECL. It may also be a COMPONENT_REF. */
+#define MEM_EXPR(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->expr)
-/* For a MEM rtx, the offset from the start of MEM_DECL, if known, as a
+/* For a MEM rtx, the offset from the start of MEM_EXPR, if known, as a
RTX that is always a CONST_INT. */
#define MEM_OFFSET(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->offset)
/* For a MEM rtx, the size in bytes of the MEM, if known, as an RTX that
is always a CONST_INT. */
-#define MEM_SIZE(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->size)
-
-/* For a MEM rtx, the alignment in bytes. */
-#define MEM_ALIGN(RTX) (MEM_ATTRS (RTX) == 0 ? 1 : MEM_ATTRS (RTX)->align)
+#define MEM_SIZE(RTX) \
+(MEM_ATTRS (RTX) != 0 ? MEM_ATTRS (RTX)->size \
+ : GET_MODE (RTX) != BLKmode ? GEN_INT (GET_MODE_SIZE (GET_MODE (RTX))) \
+ : 0)
+
+/* For a MEM rtx, the alignment in bits. We can use the alignment of the
+ mode as a default when STRICT_ALIGNMENT, but not if not. */
+#define MEM_ALIGN(RTX) \
+(MEM_ATTRS (RTX) != 0 ? MEM_ATTRS (RTX)->align \
+ : (STRICT_ALIGNMENT && GET_MODE (RTX) != BLKmode \
+ ? GET_MODE_ALIGNMENT (GET_MODE (RTX)) : BITS_PER_UNIT))
/* Copy the attributes that apply to memory locations from RHS to LHS. */
-#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), \
- RTX_UNCHANGING_P (LHS) = RTX_UNCHANGING_P (RHS), \
+#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), \
+ RTX_UNCHANGING_P (LHS) = RTX_UNCHANGING_P (RHS), \
+ MEM_KEEP_ALIAS_SET_P (LHS) = MEM_KEEP_ALIAS_SET_P (RHS), \
MEM_ATTRS (LHS) = MEM_ATTRS (RHS))
/* For a LABEL_REF, 1 means that this reference is to a label outside the
and SET_SRC is the value it is set to. */
#define SET_DEST(RTX) XC2EXP(RTX, 0, SET, CLOBBER)
#define SET_SRC(RTX) XCEXP(RTX, 1, SET)
+#define SET_IS_RETURN_P(RTX) ((RTX)->jump)
/* For a TRAP_IF rtx, TRAP_CONDITION is an expression. */
-#define TRAP_CONDITION(RTX) XCEXP(RTX, 0, TRAP_IF)
-#define TRAP_CODE(RTX) XCEXP(RTX, 1, TRAP_IF)
+#define TRAP_CONDITION(RTX) XCEXP (RTX, 0, TRAP_IF)
+#define TRAP_CODE(RTX) XCEXP (RTX, 1, TRAP_IF)
/* For a COND_EXEC rtx, COND_EXEC_TEST is the condition to base
conditionally executing the code on, COND_EXEC_CODE is the code
to execute if the condition is true. */
-#define COND_EXEC_TEST(RTX) XCEXP(RTX, 0, COND_EXEC)
-#define COND_EXEC_CODE(RTX) XCEXP(RTX, 1, COND_EXEC)
+#define COND_EXEC_TEST(RTX) XCEXP (RTX, 0, COND_EXEC)
+#define COND_EXEC_CODE(RTX) XCEXP (RTX, 1, COND_EXEC)
/* 1 in a SYMBOL_REF if it addresses this function's constants pool. */
#define CONSTANT_POOL_ADDRESS_P(RTX) ((RTX)->unchanging)
/* Don't continue this line--convex cc version 4.1 would lose. */
#if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) || defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT))
-#define FIND_REG_INC_NOTE(insn, reg) \
- (reg != NULL_RTX && REG_P ((rtx) (reg)) \
- ? find_regno_note ((insn), REG_INC, REGNO ((rtx) (reg))) \
- : find_reg_note ((insn), REG_INC, (reg)))
+#define FIND_REG_INC_NOTE(INSN, REG) \
+ ((REG) != NULL_RTX && REG_P ((REG)) \
+ ? find_regno_note ((INSN), REG_INC, REGNO (REG)) \
+ : find_reg_note ((INSN), REG_INC, (REG)))
#else
-#define FIND_REG_INC_NOTE(insn, reg) 0
+#define FIND_REG_INC_NOTE(INSN, REG) 0
#endif
/* Indicate whether the machine has any sort of auto increment addressing.
/* For RANGE_{START,END} notes, a unique # to identify this range. */
#define RANGE_INFO_UNIQUE(INSN) XCINT (INSN, 5, RANGE_INFO)
-/* For RANGE_{START,END} notes, the basic block # the range starts with. */
+/* For RANGE_{START,END} notes, the basic block # the range starts with. */
#define RANGE_INFO_BB_START(INSN) XCINT (INSN, 6, RANGE_INFO)
-/* For RANGE_{START,END} notes, the basic block # the range ends with. */
+/* For RANGE_{START,END} notes, the basic block # the range ends with. */
#define RANGE_INFO_BB_END(INSN) XCINT (INSN, 7, RANGE_INFO)
/* For RANGE_{START,END} notes, the loop depth the range is in. */
#define RANGE_REG_DEATHS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 4)
/* Whether the original value is needed to be copied into the range register at
- the start of the range. */
+ the start of the range. */
#define RANGE_REG_COPY_FLAGS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 5)
/* # of insns the register copy is live over. */
/* Determine if the insn is a PHI node. */
#define PHI_NODE_P(X) \
- (X && GET_CODE (X) == INSN \
+ ((X) && GET_CODE (X) == INSN \
&& GET_CODE (PATTERN (X)) == SET \
&& GET_CODE (SET_SRC (PATTERN (X))) == PHI)
\f
/* In expmed.c */
extern int ceil_log2 PARAMS ((unsigned HOST_WIDE_INT));
-#define plus_constant(X,C) plus_constant_wide (X, (HOST_WIDE_INT) (C))
+#define plus_constant(X, C) plus_constant_wide ((X), (HOST_WIDE_INT) (C))
/* In builtins.c */
extern rtx expand_builtin_expect_jump PARAMS ((tree, rtx, rtx));
/* In varasm.c */
extern rtx immed_double_const PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT, enum machine_mode));
+extern rtx mem_for_const_double PARAMS ((rtx));
extern rtx force_const_mem PARAMS ((enum machine_mode, rtx));
/* In varasm.c */
extern rtx get_pool_constant PARAMS ((rtx));
+extern rtx get_pool_constant_mark PARAMS ((rtx, bool *));
extern enum machine_mode get_pool_mode PARAMS ((rtx));
extern rtx get_pool_constant_for_function PARAMS ((struct function *, rtx));
extern enum machine_mode get_pool_mode_for_function PARAMS ((struct function *, rtx));
HOST_WIDE_INT, int));
extern rtx assign_stack_temp PARAMS ((enum machine_mode,
HOST_WIDE_INT, int));
+extern rtx assign_stack_temp_for_type PARAMS ((enum machine_mode,
+ HOST_WIDE_INT, int, tree));
extern rtx assign_temp PARAMS ((tree, int, int, int));
/* In emit-rtl.c */
extern rtx emit_insn_before PARAMS ((rtx, rtx));
extern void cleanup_barriers PARAMS ((void));
/* In jump.c */
-extern void squeeze_notes PARAMS ((rtx *, rtx *));
+extern bool squeeze_notes PARAMS ((rtx *, rtx *));
extern rtx delete_related_insns PARAMS ((rtx));
extern void delete_jump PARAMS ((rtx));
extern void delete_barrier PARAMS ((rtx));
unsigned int));
/* In emit-rtl.c */
-extern void set_unique_reg_note PARAMS ((rtx, enum reg_note, rtx));
+extern rtx set_unique_reg_note PARAMS ((rtx, enum reg_note, rtx));
/* Functions in rtlanal.c */
extern int rtx_addr_varies_p PARAMS ((rtx, int));
extern HOST_WIDE_INT get_integer_term PARAMS ((rtx));
extern rtx get_related_value PARAMS ((rtx));
+extern rtx get_jump_table_offset PARAMS ((rtx, rtx *));
extern int reg_mentioned_p PARAMS ((rtx, rtx));
extern int count_occurrences PARAMS ((rtx, rtx, int));
extern int reg_referenced_p PARAMS ((rtx, rtx));
extern int for_each_rtx PARAMS ((rtx *, rtx_function, void *));
extern rtx regno_use_in PARAMS ((unsigned int, rtx));
extern int auto_inc_p PARAMS ((rtx));
+extern int in_expr_list_p PARAMS ((rtx, rtx));
extern void remove_node_from_expr_list PARAMS ((rtx, rtx *));
extern int insns_safe_to_move_p PARAMS ((rtx, rtx, rtx *));
extern int loc_mentioned_in_p PARAMS ((rtx *, rtx));
void free_INSN_LIST_node PARAMS ((rtx));
rtx alloc_INSN_LIST PARAMS ((rtx, rtx));
rtx alloc_EXPR_LIST PARAMS ((int, rtx, rtx));
-void clear_log_links PARAMS ((rtx));
/* regclass.c */
hard frame pointer and the automatic variables are separated by an amount
that cannot be determined until after register allocation. We can assume
that in this case ELIMINABLE_REGS will be defined, one action of which
- will be to eliminate FRAME_POINTER_REGNUM into HARD_FRAME_POINTER_REGNUM. */
+ will be to eliminate FRAME_POINTER_REGNUM into HARD_FRAME_POINTER_REGNUM. */
#ifndef HARD_FRAME_POINTER_REGNUM
#define HARD_FRAME_POINTER_REGNUM FRAME_POINTER_REGNUM
#endif
add to this list, modify special_rtx in gengenrtl.c as well. You
should also modify gen_rtx to use the special function. */
-extern rtx gen_rtx_CONST_DOUBLE PARAMS ((enum machine_mode, rtx,
+extern rtx gen_rtx_CONST_DOUBLE PARAMS ((enum machine_mode,
HOST_WIDE_INT, HOST_WIDE_INT));
extern rtx gen_rtx_CONST_INT PARAMS ((enum machine_mode, HOST_WIDE_INT));
extern rtx gen_raw_REG PARAMS ((enum machine_mode, int));
#define LAST_VIRTUAL_REGISTER ((FIRST_VIRTUAL_REGISTER) + 4)
+/* Nonzero if REGNUM is a pointer into the stack frame. */
+#define REGNO_PTR_FRAME_P(REGNUM) \
+ ((REGNUM) == STACK_POINTER_REGNUM \
+ || (REGNUM) == FRAME_POINTER_REGNUM \
+ || (REGNUM) == HARD_FRAME_POINTER_REGNUM \
+ || (REGNUM) == ARG_POINTER_REGNUM \
+ || ((REGNUM) >= FIRST_VIRTUAL_REGISTER \
+ && (REGNUM) <= LAST_VIRTUAL_REGISTER))
+
/* REGNUM never really appearing in the INSN stream. */
-#define INVALID_REGNUM (~(unsigned int)0)
+#define INVALID_REGNUM (~(unsigned int) 0)
extern rtx find_next_ref PARAMS ((rtx, rtx));
extern int redirect_jump_1 PARAMS ((rtx, rtx));
extern int redirect_jump PARAMS ((rtx, rtx, int));
extern void rebuild_jump_labels PARAMS ((rtx));
-extern void thread_jumps PARAMS ((rtx, int, int));
-extern int rtx_equal_for_thread_p PARAMS ((rtx, rtx, rtx));
-extern int can_reverse_comparison_p PARAMS ((rtx, rtx));
extern enum rtx_code reversed_comparison_code PARAMS ((rtx, rtx));
extern enum rtx_code reversed_comparison_code_parts PARAMS ((enum rtx_code,
rtx, rtx, rtx));
extern void delete_for_peephole PARAMS ((rtx, rtx));
extern int condjump_in_parallel_p PARAMS ((rtx));
-extern void never_reached_warning PARAMS ((rtx));
+extern void never_reached_warning PARAMS ((rtx, rtx));
extern void purge_line_number_notes PARAMS ((rtx));
extern void copy_loop_headers PARAMS ((rtx));
-/* In emit-rtl.c. */
+/* In emit-rtl.c. */
extern int max_reg_num PARAMS ((void));
extern int max_label_num PARAMS ((void));
extern int get_first_label_num PARAMS ((void));
extern void set_new_first_and_last_label_num PARAMS ((int, int));
extern void set_new_last_label_num PARAMS ((int));
extern void unshare_all_rtl_again PARAMS ((rtx));
+extern void set_first_insn PARAMS ((rtx));
extern void set_last_insn PARAMS ((rtx));
extern void link_cc0_insns PARAMS ((rtx));
extern void add_insn PARAMS ((rtx));
extern void dump_combine_total_stats PARAMS ((FILE *));
#endif
-/* In sched.c. */
+/* In sched.c. */
#ifdef BUFSIZ
extern void schedule_insns PARAMS ((FILE *));
extern void schedule_ebbs PARAMS ((FILE *));
extern void debug_rtx_range PARAMS ((rtx, rtx));
extern rtx debug_rtx_find PARAMS ((rtx, int));
#ifdef BUFSIZ
+extern void print_mem_expr PARAMS ((FILE *, tree));
extern void print_rtl PARAMS ((FILE *, rtx));
extern void print_simple_rtl PARAMS ((FILE *, rtx));
extern int print_rtl_single PARAMS ((FILE *, rtx));
unsigned int));
/* In flow.c */
-extern void recompute_reg_usage PARAMS ((rtx, int));
+extern void recompute_reg_usage PARAMS ((rtx, int));
+extern int initialize_uninitialized_subregs PARAMS ((void));
+extern void delete_dead_jumptables PARAMS ((void));
#ifdef BUFSIZ
-extern void print_rtl_with_bb PARAMS ((FILE *, rtx));
-extern void dump_flow_info PARAMS ((FILE *));
+extern void print_rtl_with_bb PARAMS ((FILE *, rtx));
+extern void dump_flow_info PARAMS ((FILE *));
#endif
/* In expmed.c */
/* In regrename.c */
extern void regrename_optimize PARAMS ((void));
+extern void copyprop_hardreg_forward PARAMS ((void));
/* In ifcvt.c */
extern void if_convert PARAMS ((int));
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