| /* Virtual array support. |
| Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2007 |
| Free Software Foundation, Inc. |
| Contributed by Cygnus Solutions. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public |
| License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef GCC_VARRAY_H |
| #define GCC_VARRAY_H |
| |
| #ifndef HOST_WIDE_INT |
| #include "machmode.h" |
| #endif |
| |
| #ifndef GCC_SYSTEM_H |
| #include "system.h" |
| #include "coretypes.h" |
| #include "tm.h" |
| #endif |
| |
| /* Enum indicating what the varray contains. |
| If this is changed, `element' in varray.c needs to be updated. */ |
| |
| enum varray_data_enum { |
| VARRAY_DATA_C, |
| VARRAY_DATA_UC, |
| VARRAY_DATA_S, |
| VARRAY_DATA_US, |
| VARRAY_DATA_I, |
| VARRAY_DATA_U, |
| VARRAY_DATA_L, |
| VARRAY_DATA_UL, |
| VARRAY_DATA_HINT, |
| VARRAY_DATA_UHINT, |
| VARRAY_DATA_GENERIC, |
| VARRAY_DATA_GENERIC_NOGC, |
| VARRAY_DATA_CPTR, |
| VARRAY_DATA_RTX, |
| VARRAY_DATA_RTVEC, |
| VARRAY_DATA_TREE, |
| VARRAY_DATA_BITMAP, |
| VARRAY_DATA_REG, |
| VARRAY_DATA_BB, |
| VARRAY_DATA_TE, |
| VARRAY_DATA_EDGE, |
| VARRAY_DATA_TREE_PTR, |
| NUM_VARRAY_DATA |
| }; |
| |
| /* Union of various array types that are used. */ |
| typedef union GTY (()) varray_data_tag { |
| char GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_C"))) vdt_c[1]; |
| unsigned char GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_UC"))) vdt_uc[1]; |
| short GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_S"))) vdt_s[1]; |
| unsigned short GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_US"))) vdt_us[1]; |
| int GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_I"))) vdt_i[1]; |
| unsigned int GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_U"))) vdt_u[1]; |
| long GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_L"))) vdt_l[1]; |
| unsigned long GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_UL"))) vdt_ul[1]; |
| HOST_WIDE_INT GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_HINT"))) vdt_hint[1]; |
| unsigned HOST_WIDE_INT GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_UHINT"))) vdt_uhint[1]; |
| PTR GTY ((length ("%0.num_elements"), use_param, |
| tag ("VARRAY_DATA_GENERIC"))) vdt_generic[1]; |
| PTR GTY ((length ("%0.num_elements"), skip (""), |
| tag ("VARRAY_DATA_GENERIC_NOGC"))) vdt_generic_nogc[1]; |
| char *GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_CPTR"))) vdt_cptr[1]; |
| rtx GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_RTX"))) vdt_rtx[1]; |
| rtvec GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_RTVEC"))) vdt_rtvec[1]; |
| tree GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_TREE"))) vdt_tree[1]; |
| struct bitmap_head_def *GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_BITMAP"))) vdt_bitmap[1]; |
| struct reg_info_def *GTY ((length ("%0.num_elements"), skip, |
| tag ("VARRAY_DATA_REG"))) vdt_reg[1]; |
| struct basic_block_def *GTY ((length ("%0.num_elements"), skip, |
| tag ("VARRAY_DATA_BB"))) vdt_bb[1]; |
| struct elt_list *GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_TE"))) vdt_te[1]; |
| struct edge_def *GTY ((length ("%0.num_elements"), |
| tag ("VARRAY_DATA_EDGE"))) vdt_e[1]; |
| tree *GTY ((length ("%0.num_elements"), skip (""), |
| tag ("VARRAY_DATA_TREE_PTR"))) vdt_tp[1]; |
| } varray_data; |
| |
| /* Virtual array of pointers header. */ |
| struct GTY(()) varray_head_tag { |
| size_t num_elements; /* Maximum element number allocated. */ |
| size_t elements_used; /* The number of elements used, if |
| using VARRAY_PUSH/VARRAY_POP. */ |
| enum varray_data_enum type; /* The kind of elements in the varray. */ |
| const char *name; /* name of the varray for reporting errors */ |
| varray_data GTY ((desc ("%0.type"))) data; /* The data elements follow, |
| must be last. */ |
| }; |
| typedef struct varray_head_tag *varray_type; |
| |
| /* Allocate a virtual array with NUM elements, each of which is SIZE bytes |
| long, named NAME. Array elements are zeroed. */ |
| extern varray_type varray_init (size_t, enum varray_data_enum, const char *); |
| |
| #define VARRAY_CHAR_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_C, name) |
| |
| #define VARRAY_UCHAR_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_UC, name) |
| |
| #define VARRAY_SHORT_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_S, name) |
| |
| #define VARRAY_USHORT_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_US, name) |
| |
| #define VARRAY_INT_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_I, name) |
| |
| #define VARRAY_UINT_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_U, name) |
| |
| #define VARRAY_LONG_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_L, name) |
| |
| #define VARRAY_ULONG_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_UL, name) |
| |
| #define VARRAY_WIDE_INT_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_HINT, name) |
| |
| #define VARRAY_UWIDE_INT_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_UHINT, name) |
| |
| #define VARRAY_GENERIC_PTR_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_GENERIC, name) |
| |
| #define VARRAY_GENERIC_PTR_NOGC_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_GENERIC_NOGC, name) |
| |
| #define VARRAY_CHAR_PTR_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_CPTR, name) |
| |
| #define VARRAY_RTX_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_RTX, name) |
| |
| #define VARRAY_RTVEC_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_RTVEC, name) |
| |
| #define VARRAY_TREE_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_TREE, name) |
| |
| #define VARRAY_BITMAP_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_BITMAP, name) |
| |
| #define VARRAY_REG_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_REG, name) |
| |
| #define VARRAY_BB_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_BB, name) |
| |
| #define VARRAY_ELT_LIST_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_TE, name) |
| |
| #define VARRAY_EDGE_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_EDGE, name) |
| |
| #define VARRAY_TREE_PTR_INIT(va, num, name) \ |
| va = varray_init (num, VARRAY_DATA_TREE_PTR, name) |
| |
| /* Free up memory allocated by the virtual array, but do not free any of the |
| elements involved. */ |
| #define VARRAY_FREE(vp) \ |
| do { if (vp) { free (vp); vp = (varray_type) 0; } } while (0) |
| |
| /* Grow/shrink the virtual array VA to N elements. */ |
| extern varray_type varray_grow (varray_type, size_t); |
| |
| #define VARRAY_GROW(VA, N) ((VA) = varray_grow (VA, N)) |
| |
| #define VARRAY_SIZE(VA) ((VA)->num_elements) |
| |
| #define VARRAY_ACTIVE_SIZE(VA) ((VA)->elements_used) |
| #define VARRAY_POP_ALL(VA) ((VA)->elements_used = 0) |
| |
| #define VARRAY_CLEAR(VA) varray_clear(VA) |
| |
| extern void varray_clear (varray_type); |
| extern void dump_varray_statistics (void); |
| |
| /* Check for VARRAY_xxx macros being in bound. */ |
| #if defined ENABLE_CHECKING && (GCC_VERSION >= 2007) |
| extern void varray_check_failed (varray_type, size_t, const char *, int, |
| const char *) ATTRIBUTE_NORETURN; |
| extern void varray_underflow (varray_type, const char *, int, const char *) |
| ATTRIBUTE_NORETURN; |
| #define VARRAY_CHECK(VA, N, T) __extension__ \ |
| (*({ varray_type const _va = (VA); \ |
| const size_t _n = (N); \ |
| if (_n >= _va->num_elements) \ |
| varray_check_failed (_va, _n, __FILE__, __LINE__, __FUNCTION__); \ |
| &_va->data.T[_n]; })) |
| |
| #define VARRAY_POP(VA) do { \ |
| varray_type const _va = (VA); \ |
| if (_va->elements_used == 0) \ |
| varray_underflow (_va, __FILE__, __LINE__, __FUNCTION__); \ |
| else \ |
| _va->elements_used--; \ |
| } while (0) |
| |
| #else |
| #define VARRAY_CHECK(VA, N, T) ((VA)->data.T[N]) |
| /* Pop the top element of VA. */ |
| #define VARRAY_POP(VA) do { ((VA)->elements_used--); } while (0) |
| #endif |
| |
| /* Push X onto VA. T is the name of the field in varray_data |
| corresponding to the type of X. */ |
| #define VARRAY_PUSH(VA, T, X) \ |
| do \ |
| { \ |
| if ((VA)->elements_used >= (VA)->num_elements) \ |
| VARRAY_GROW ((VA), 2 * (VA)->num_elements); \ |
| (VA)->data.T[(VA)->elements_used++] = (X); \ |
| } \ |
| while (0) |
| |
| #define VARRAY_CHAR(VA, N) VARRAY_CHECK (VA, N, vdt_c) |
| #define VARRAY_UCHAR(VA, N) VARRAY_CHECK (VA, N, vdt_uc) |
| #define VARRAY_SHORT(VA, N) VARRAY_CHECK (VA, N, vdt_s) |
| #define VARRAY_USHORT(VA, N) VARRAY_CHECK (VA, N, vdt_us) |
| #define VARRAY_INT(VA, N) VARRAY_CHECK (VA, N, vdt_i) |
| #define VARRAY_UINT(VA, N) VARRAY_CHECK (VA, N, vdt_u) |
| #define VARRAY_LONG(VA, N) VARRAY_CHECK (VA, N, vdt_l) |
| #define VARRAY_ULONG(VA, N) VARRAY_CHECK (VA, N, vdt_ul) |
| #define VARRAY_WIDE_INT(VA, N) VARRAY_CHECK (VA, N, vdt_hint) |
| #define VARRAY_UWIDE_INT(VA, N) VARRAY_CHECK (VA, N, vdt_uhint) |
| #define VARRAY_GENERIC_PTR(VA,N) VARRAY_CHECK (VA, N, vdt_generic) |
| #define VARRAY_GENERIC_PTR_NOGC(VA,N) VARRAY_CHECK (VA, N, vdt_generic_nogc) |
| #define VARRAY_CHAR_PTR(VA,N) VARRAY_CHECK (VA, N, vdt_cptr) |
| #define VARRAY_RTX(VA, N) VARRAY_CHECK (VA, N, vdt_rtx) |
| #define VARRAY_RTVEC(VA, N) VARRAY_CHECK (VA, N, vdt_rtvec) |
| #define VARRAY_TREE(VA, N) VARRAY_CHECK (VA, N, vdt_tree) |
| #define VARRAY_BITMAP(VA, N) VARRAY_CHECK (VA, N, vdt_bitmap) |
| #define VARRAY_REG(VA, N) VARRAY_CHECK (VA, N, vdt_reg) |
| #define VARRAY_BB(VA, N) VARRAY_CHECK (VA, N, vdt_bb) |
| #define VARRAY_ELT_LIST(VA, N) VARRAY_CHECK (VA, N, vdt_te) |
| #define VARRAY_EDGE(VA, N) VARRAY_CHECK (VA, N, vdt_e) |
| #define VARRAY_TREE_PTR(VA, N) VARRAY_CHECK (VA, N, vdt_tp) |
| |
| /* Push a new element on the end of VA, extending it if necessary. */ |
| #define VARRAY_PUSH_CHAR(VA, X) VARRAY_PUSH (VA, vdt_c, X) |
| #define VARRAY_PUSH_UCHAR(VA, X) VARRAY_PUSH (VA, vdt_uc, X) |
| #define VARRAY_PUSH_SHORT(VA, X) VARRAY_PUSH (VA, vdt_s, X) |
| #define VARRAY_PUSH_USHORT(VA, X) VARRAY_PUSH (VA, vdt_us, X) |
| #define VARRAY_PUSH_INT(VA, X) VARRAY_PUSH (VA, vdt_i, X) |
| #define VARRAY_PUSH_UINT(VA, X) VARRAY_PUSH (VA, vdt_u, X) |
| #define VARRAY_PUSH_LONG(VA, X) VARRAY_PUSH (VA, vdt_l, X) |
| #define VARRAY_PUSH_ULONG(VA, X) VARRAY_PUSH (VA, vdt_ul, X) |
| #define VARRAY_PUSH_WIDE_INT(VA, X) VARRAY_PUSH (VA, vdt_hint, X) |
| #define VARRAY_PUSH_UWIDE_INT(VA, X) VARRAY_PUSH (VA, vdt_uhint, X) |
| #define VARRAY_PUSH_GENERIC_PTR(VA, X) VARRAY_PUSH (VA, vdt_generic, X) |
| #define VARRAY_PUSH_GENERIC_PTR_NOGC(VA, X) VARRAY_PUSH (VA, vdt_generic_nogc, X) |
| #define VARRAY_PUSH_CHAR_PTR(VA, X) VARRAY_PUSH (VA, vdt_cptr, X) |
| #define VARRAY_PUSH_RTX(VA, X) VARRAY_PUSH (VA, vdt_rtx, X) |
| #define VARRAY_PUSH_RTVEC(VA, X) VARRAY_PUSH (VA, vdt_rtvec, X) |
| #define VARRAY_PUSH_TREE(VA, X) VARRAY_PUSH (VA, vdt_tree, X) |
| #define VARRAY_PUSH_BITMAP(VA, X) VARRAY_PUSH (VA, vdt_bitmap, X) |
| #define VARRAY_PUSH_REG(VA, X) VARRAY_PUSH (VA, vdt_reg, X) |
| #define VARRAY_PUSH_BB(VA, X) VARRAY_PUSH (VA, vdt_bb, X) |
| #define VARRAY_PUSH_EDGE(VA, X) VARRAY_PUSH (VA, vdt_e, X) |
| #define VARRAY_PUSH_TREE_PTR(VA, X) VARRAY_PUSH (VA, vdt_tp, X) |
| |
| /* Return the last element of VA. */ |
| #define VARRAY_TOP(VA, T) VARRAY_CHECK(VA, (VA)->elements_used - 1, T) |
| |
| #define VARRAY_TOP_CHAR(VA) VARRAY_TOP (VA, vdt_c) |
| #define VARRAY_TOP_UCHAR(VA) VARRAY_TOP (VA, vdt_uc) |
| #define VARRAY_TOP_SHORT(VA) VARRAY_TOP (VA, vdt_s) |
| #define VARRAY_TOP_USHORT(VA) VARRAY_TOP (VA, vdt_us) |
| #define VARRAY_TOP_INT(VA) VARRAY_TOP (VA, vdt_i) |
| #define VARRAY_TOP_UINT(VA) VARRAY_TOP (VA, vdt_u) |
| #define VARRAY_TOP_LONG(VA) VARRAY_TOP (VA, vdt_l) |
| #define VARRAY_TOP_ULONG(VA) VARRAY_TOP (VA, vdt_ul) |
| #define VARRAY_TOP_WIDE_INT(VA) VARRAY_TOP (VA, vdt_hint) |
| #define VARRAY_TOP_UWIDE_INT(VA) VARRAY_TOP (VA, vdt_uhint) |
| #define VARRAY_TOP_GENERIC_PTR(VA) VARRAY_TOP (VA, vdt_generic) |
| #define VARRAY_TOP_GENERIC_PTR_NOGC(VA) VARRAY_TOP (VA, vdt_generic_nogc) |
| #define VARRAY_TOP_CHAR_PTR(VA) VARRAY_TOP (VA, vdt_cptr) |
| #define VARRAY_TOP_RTX(VA) VARRAY_TOP (VA, vdt_rtx) |
| #define VARRAY_TOP_RTVEC(VA) VARRAY_TOP (VA, vdt_rtvec) |
| #define VARRAY_TOP_TREE(VA) VARRAY_TOP (VA, vdt_tree) |
| #define VARRAY_TOP_BITMAP(VA) VARRAY_TOP (VA, vdt_bitmap) |
| #define VARRAY_TOP_REG(VA) VARRAY_TOP (VA, vdt_reg) |
| #define VARRAY_TOP_BB(VA) VARRAY_TOP (VA, vdt_bb) |
| #define VARRAY_TOP_EDGE(VA) VARRAY_TOP (VA, vdt_e) |
| #define VARRAY_TOP_TREE_PTR(VA) VARRAY_TOP (VA, vdt_tp) |
| |
| #endif /* ! GCC_VARRAY_H */ |
