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Diffstat (limited to 'lib/gcc/arm-eabi/4.6.x-google/plugin/include/tree-ssa-operands.h')
| -rw-r--r-- | lib/gcc/arm-eabi/4.6.x-google/plugin/include/tree-ssa-operands.h | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/lib/gcc/arm-eabi/4.6.x-google/plugin/include/tree-ssa-operands.h b/lib/gcc/arm-eabi/4.6.x-google/plugin/include/tree-ssa-operands.h new file mode 100644 index 0000000..4c586f7 --- /dev/null +++ b/lib/gcc/arm-eabi/4.6.x-google/plugin/include/tree-ssa-operands.h @@ -0,0 +1,233 @@ +/* SSA operand management for trees. + Copyright (C) 2003, 2005, 2006, 2007, 2008, 2010 + Free Software Foundation, Inc. + +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_TREE_SSA_OPERANDS_H +#define GCC_TREE_SSA_OPERANDS_H + +/* Interface to SSA operands. */ + + +/* This represents a pointer to a DEF operand. */ +typedef tree *def_operand_p; + +/* This represents a pointer to a USE operand. */ +typedef ssa_use_operand_t *use_operand_p; + +/* NULL operand types. */ +#define NULL_USE_OPERAND_P ((use_operand_p)NULL) +#define NULL_DEF_OPERAND_P ((def_operand_p)NULL) + +/* This represents the DEF operands of a stmt. */ +struct def_optype_d +{ + struct def_optype_d *next; + tree *def_ptr; +}; +typedef struct def_optype_d *def_optype_p; + +/* This represents the USE operands of a stmt. */ +struct use_optype_d +{ + struct use_optype_d *next; + struct ssa_use_operand_d use_ptr; +}; +typedef struct use_optype_d *use_optype_p; + +/* This structure represents a variable sized buffer which is allocated by the + operand memory manager. Operands are suballocated out of this block. The + MEM array varies in size. */ + +struct GTY((chain_next("%h.next"), variable_size)) ssa_operand_memory_d { + struct ssa_operand_memory_d *next; + char mem[1]; +}; + +/* Per-function operand caches. */ +struct GTY(()) ssa_operands { + struct ssa_operand_memory_d *operand_memory; + unsigned operand_memory_index; + /* Current size of the operand memory buffer. */ + unsigned int ssa_operand_mem_size; + + bool ops_active; + + struct def_optype_d * GTY ((skip (""))) free_defs; + struct use_optype_d * GTY ((skip (""))) free_uses; +}; + +#define USE_FROM_PTR(PTR) get_use_from_ptr (PTR) +#define DEF_FROM_PTR(PTR) get_def_from_ptr (PTR) +#define SET_USE(USE, V) set_ssa_use_from_ptr (USE, V) +#define SET_DEF(DEF, V) ((*(DEF)) = (V)) + +#define USE_STMT(USE) (USE)->loc.stmt + +#define USE_OP_PTR(OP) (&((OP)->use_ptr)) +#define USE_OP(OP) (USE_FROM_PTR (USE_OP_PTR (OP))) + +#define DEF_OP_PTR(OP) ((OP)->def_ptr) +#define DEF_OP(OP) (DEF_FROM_PTR (DEF_OP_PTR (OP))) + +#define PHI_RESULT_PTR(PHI) gimple_phi_result_ptr (PHI) +#define PHI_RESULT(PHI) DEF_FROM_PTR (PHI_RESULT_PTR (PHI)) +#define SET_PHI_RESULT(PHI, V) SET_DEF (PHI_RESULT_PTR (PHI), (V)) + +#define PHI_ARG_DEF_PTR(PHI, I) gimple_phi_arg_imm_use_ptr ((PHI), (I)) +#define PHI_ARG_DEF(PHI, I) USE_FROM_PTR (PHI_ARG_DEF_PTR ((PHI), (I))) +#define SET_PHI_ARG_DEF(PHI, I, V) \ + SET_USE (PHI_ARG_DEF_PTR ((PHI), (I)), (V)) +#define PHI_ARG_DEF_FROM_EDGE(PHI, E) \ + PHI_ARG_DEF ((PHI), (E)->dest_idx) +#define PHI_ARG_DEF_PTR_FROM_EDGE(PHI, E) \ + PHI_ARG_DEF_PTR ((PHI), (E)->dest_idx) +#define PHI_ARG_INDEX_FROM_USE(USE) phi_arg_index_from_use (USE) + + +extern void init_ssa_operands (void); +extern void fini_ssa_operands (void); +extern void update_stmt_operands (gimple); +extern void free_stmt_operands (gimple); +extern bool verify_imm_links (FILE *f, tree var); + +extern void dump_immediate_uses (FILE *file); +extern void dump_immediate_uses_for (FILE *file, tree var); +extern void debug_immediate_uses (void); +extern void debug_immediate_uses_for (tree var); +extern void dump_decl_set (FILE *, bitmap); +extern void debug_decl_set (bitmap); + +extern bool ssa_operands_active (void); + +extern void unlink_stmt_vdef (gimple); + +enum ssa_op_iter_type { + ssa_op_iter_none = 0, + ssa_op_iter_tree, + ssa_op_iter_use, + ssa_op_iter_def +}; + +/* This structure is used in the operand iterator loops. It contains the + items required to determine which operand is retrieved next. During + optimization, this structure is scalarized, and any unused fields are + optimized away, resulting in little overhead. */ + +typedef struct ssa_operand_iterator_d +{ + bool done; + enum ssa_op_iter_type iter_type; + def_optype_p defs; + use_optype_p uses; + int phi_i; + int num_phi; + gimple phi_stmt; +} ssa_op_iter; + +/* These flags are used to determine which operands are returned during + execution of the loop. */ +#define SSA_OP_USE 0x01 /* Real USE operands. */ +#define SSA_OP_DEF 0x02 /* Real DEF operands. */ +#define SSA_OP_VUSE 0x04 /* VUSE operands. */ +#define SSA_OP_VDEF 0x08 /* VDEF operands. */ + +/* These are commonly grouped operand flags. */ +#define SSA_OP_VIRTUAL_USES (SSA_OP_VUSE) +#define SSA_OP_VIRTUAL_DEFS (SSA_OP_VDEF) +#define SSA_OP_ALL_VIRTUALS (SSA_OP_VIRTUAL_USES | SSA_OP_VIRTUAL_DEFS) +#define SSA_OP_ALL_USES (SSA_OP_VIRTUAL_USES | SSA_OP_USE) +#define SSA_OP_ALL_DEFS (SSA_OP_VIRTUAL_DEFS | SSA_OP_DEF) +#define SSA_OP_ALL_OPERANDS (SSA_OP_ALL_USES | SSA_OP_ALL_DEFS) + +/* This macro executes a loop over the operands of STMT specified in FLAG, + returning each operand as a 'tree' in the variable TREEVAR. ITER is an + ssa_op_iter structure used to control the loop. */ +#define FOR_EACH_SSA_TREE_OPERAND(TREEVAR, STMT, ITER, FLAGS) \ + for (TREEVAR = op_iter_init_tree (&(ITER), STMT, FLAGS); \ + !op_iter_done (&(ITER)); \ + (void) (TREEVAR = op_iter_next_tree (&(ITER)))) + +/* This macro executes a loop over the operands of STMT specified in FLAG, + returning each operand as a 'use_operand_p' in the variable USEVAR. + ITER is an ssa_op_iter structure used to control the loop. */ +#define FOR_EACH_SSA_USE_OPERAND(USEVAR, STMT, ITER, FLAGS) \ + for (USEVAR = op_iter_init_use (&(ITER), STMT, FLAGS); \ + !op_iter_done (&(ITER)); \ + USEVAR = op_iter_next_use (&(ITER))) + +/* This macro executes a loop over the operands of STMT specified in FLAG, + returning each operand as a 'def_operand_p' in the variable DEFVAR. + ITER is an ssa_op_iter structure used to control the loop. */ +#define FOR_EACH_SSA_DEF_OPERAND(DEFVAR, STMT, ITER, FLAGS) \ + for (DEFVAR = op_iter_init_def (&(ITER), STMT, FLAGS); \ + !op_iter_done (&(ITER)); \ + DEFVAR = op_iter_next_def (&(ITER))) + +/* This macro will execute a loop over all the arguments of a PHI which + match FLAGS. A use_operand_p is always returned via USEVAR. FLAGS + can be either SSA_OP_USE or SSA_OP_VIRTUAL_USES or SSA_OP_ALL_USES. */ +#define FOR_EACH_PHI_ARG(USEVAR, STMT, ITER, FLAGS) \ + for ((USEVAR) = op_iter_init_phiuse (&(ITER), STMT, FLAGS); \ + !op_iter_done (&(ITER)); \ + (USEVAR) = op_iter_next_use (&(ITER))) + + +/* This macro will execute a loop over a stmt, regardless of whether it is + a real stmt or a PHI node, looking at the USE nodes matching FLAGS. */ +#define FOR_EACH_PHI_OR_STMT_USE(USEVAR, STMT, ITER, FLAGS) \ + for ((USEVAR) = (gimple_code (STMT) == GIMPLE_PHI \ + ? op_iter_init_phiuse (&(ITER), STMT, FLAGS) \ + : op_iter_init_use (&(ITER), STMT, FLAGS)); \ + !op_iter_done (&(ITER)); \ + (USEVAR) = op_iter_next_use (&(ITER))) + +/* This macro will execute a loop over a stmt, regardless of whether it is + a real stmt or a PHI node, looking at the DEF nodes matching FLAGS. */ +#define FOR_EACH_PHI_OR_STMT_DEF(DEFVAR, STMT, ITER, FLAGS) \ + for ((DEFVAR) = (gimple_code (STMT) == GIMPLE_PHI \ + ? op_iter_init_phidef (&(ITER), STMT, FLAGS) \ + : op_iter_init_def (&(ITER), STMT, FLAGS)); \ + !op_iter_done (&(ITER)); \ + (DEFVAR) = op_iter_next_def (&(ITER))) + +/* This macro returns an operand in STMT as a tree if it is the ONLY + operand matching FLAGS. If there are 0 or more than 1 operand matching + FLAGS, then NULL_TREE is returned. */ +#define SINGLE_SSA_TREE_OPERAND(STMT, FLAGS) \ + single_ssa_tree_operand (STMT, FLAGS) + +/* This macro returns an operand in STMT as a use_operand_p if it is the ONLY + operand matching FLAGS. If there are 0 or more than 1 operand matching + FLAGS, then NULL_USE_OPERAND_P is returned. */ +#define SINGLE_SSA_USE_OPERAND(STMT, FLAGS) \ + single_ssa_use_operand (STMT, FLAGS) + +/* This macro returns an operand in STMT as a def_operand_p if it is the ONLY + operand matching FLAGS. If there are 0 or more than 1 operand matching + FLAGS, then NULL_DEF_OPERAND_P is returned. */ +#define SINGLE_SSA_DEF_OPERAND(STMT, FLAGS) \ + single_ssa_def_operand (STMT, FLAGS) + +/* This macro returns TRUE if there are no operands matching FLAGS in STMT. */ +#define ZERO_SSA_OPERANDS(STMT, FLAGS) zero_ssa_operands (STMT, FLAGS) + +/* This macro counts the number of operands in STMT matching FLAGS. */ +#define NUM_SSA_OPERANDS(STMT, FLAGS) num_ssa_operands (STMT, FLAGS) + +#endif /* GCC_TREE_SSA_OPERANDS_H */ |