X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Ftree-ssa-operands.h;h=a435fab0201aea419b3b4e8408a0fb7d50d0619c;hb=71e7d89442a899c1db36a56329c9c5f01d95417f;hp=12f75ceec06c0fd8178409d8f6603b6eb2d5fb60;hpb=d15713f9b684181aa673a60145e66dd1befc5a1d;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/tree-ssa-operands.h b/gcc/tree-ssa-operands.h index 12f75ceec06..a435fab0201 100644 --- a/gcc/tree-ssa-operands.h +++ b/gcc/tree-ssa-operands.h @@ -1,11 +1,11 @@ /* SSA operand management for trees. - Copyright (C) 2003, 2005 Free Software Foundation, Inc. + Copyright (C) 2003, 2005, 2006, 2007, 2008 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 2, or (at your option) any later +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 @@ -14,9 +14,8 @@ 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 COPYING. If not, write to the Free -Software Foundation, 59 Temple Place - Suite 330, Boston, MA -02111-1307, USA. */ +along with GCC; see the file COPYING3. If not see +. */ #ifndef GCC_TREE_SSA_OPERANDS_H #define GCC_TREE_SSA_OPERANDS_H @@ -31,8 +30,8 @@ typedef tree *def_operand_p; typedef ssa_use_operand_t *use_operand_p; /* NULL operand types. */ -#define NULL_USE_OPERAND_P NULL -#define NULL_DEF_OPERAND_P NULL +#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 @@ -43,79 +42,41 @@ struct def_optype_d typedef struct def_optype_d *def_optype_p; /* This represents the USE operands of a stmt. */ -struct use_optype_d +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 represents the MAY_DEFS for a stmt. */ -struct maydef_optype_d -{ - struct maydef_optype_d *next; - tree def_var; - tree use_var; - struct ssa_use_operand_d use_ptr; -}; -typedef struct maydef_optype_d *maydef_optype_p; - -/* This represents the VUSEs for a stmt. */ -struct vuse_optype_d -{ - struct vuse_optype_d *next; - tree use_var; - struct ssa_use_operand_d use_ptr; -}; -typedef struct vuse_optype_d *vuse_optype_p; - -/* This represents the V_MUST_DEFS for a stmt. */ -struct mustdef_optype_d -{ - struct mustdef_optype_d *next; - tree def_var; - tree kill_var; - struct ssa_use_operand_d use_ptr; -}; -typedef struct mustdef_optype_d *mustdef_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. */ - -#define SSA_OPERAND_MEMORY_SIZE (2048 - sizeof (void *)) - -struct ssa_operand_memory_d GTY((chain_next("%h.next"))) -{ +struct GTY((chain_next("%h.next"))) ssa_operand_memory_d { struct ssa_operand_memory_d *next; - char mem[SSA_OPERAND_MEMORY_SIZE]; + 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; -/* This represents the operand cache for a stmt. */ -struct stmt_operands_d -{ - /* Statement operands. */ - struct def_optype_d * def_ops; - struct use_optype_d * use_ops; - - /* Virtual operands (V_MAY_DEF, VUSE, and V_MUST_DEF). */ - struct maydef_optype_d * maydef_ops; - struct vuse_optype_d * vuse_ops; - struct mustdef_optype_d * mustdef_ops; + bool ops_active; + + struct def_optype_d * GTY ((skip (""))) free_defs; + struct use_optype_d * GTY ((skip (""))) free_uses; }; - -typedef struct stmt_operands_d *stmt_operands_p; - + #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)->stmt - -#define DEF_OPS(STMT) (stmt_ann (STMT)->operands.def_ops) -#define USE_OPS(STMT) (stmt_ann (STMT)->operands.use_ops) -#define VUSE_OPS(STMT) (stmt_ann (STMT)->operands.vuse_ops) -#define MAYDEF_OPS(STMT) (stmt_ann (STMT)->operands.maydef_ops) -#define MUSTDEF_OPS(STMT) (stmt_ann (STMT)->operands.mustdef_ops) +#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))) @@ -123,24 +84,11 @@ typedef struct stmt_operands_d *stmt_operands_p; #define DEF_OP_PTR(OP) ((OP)->def_ptr) #define DEF_OP(OP) (DEF_FROM_PTR (DEF_OP_PTR (OP))) -#define VUSE_OP_PTR(OP) USE_OP_PTR(OP) -#define VUSE_OP(OP) ((OP)->use_var) - -#define MAYDEF_RESULT_PTR(OP) (&((OP)->def_var)) -#define MAYDEF_RESULT(OP) ((OP)->def_var) -#define MAYDEF_OP_PTR(OP) USE_OP_PTR (OP) -#define MAYDEF_OP(OP) ((OP)->use_var) - -#define MUSTDEF_RESULT_PTR(OP) (&((OP)->def_var)) -#define MUSTDEF_RESULT(OP) ((OP)->def_var) -#define MUSTDEF_KILL_PTR(OP) USE_OP_PTR (OP) -#define MUSTDEF_KILL(OP) ((OP)->kill_var) - -#define PHI_RESULT_PTR(PHI) get_phi_result_ptr (PHI) +#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) get_phi_arg_def_ptr ((PHI), (I)) +#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)) @@ -153,73 +101,60 @@ typedef struct stmt_operands_d *stmt_operands_p; extern void init_ssa_operands (void); extern void fini_ssa_operands (void); -extern void update_stmt_operands (tree); +extern void update_stmt_operands (gimple); +extern void free_stmt_operands (gimple); extern bool verify_imm_links (FILE *f, tree var); -extern void copy_virtual_operands (tree, tree); -extern void create_ssa_artficial_load_stmt (tree, tree); - 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 bool ssa_call_clobbered_cache_valid; -extern bool ssa_ro_call_cache_valid; +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, - ssa_op_iter_maymustdef + ssa_op_iter_def }; -/* This structure is used in the operand iterator loops. It contains the + +/* 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 + 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; - vuse_optype_p vuses; - maydef_optype_p maydefs; - maydef_optype_p mayuses; - mustdef_optype_p mustdefs; - mustdef_optype_p mustkills; - enum ssa_op_iter_type iter_type; int phi_i; int num_phi; - tree phi_stmt; - bool done; + gimple phi_stmt; } ssa_op_iter; -/* These flags are used to determine which operands are returned during +/* 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_VMAYUSE 0x08 /* USE portion of V_MAY_DEFS. */ -#define SSA_OP_VMAYDEF 0x10 /* DEF portion of V_MAY_DEFS. */ -#define SSA_OP_VMUSTDEF 0x20 /* V_MUST_DEF definitions. */ -#define SSA_OP_VMUSTKILL 0x40 /* V_MUST_DEF kills. */ +#define SSA_OP_VDEF 0x08 /* VDEF operands. */ /* These are commonly grouped operand flags. */ -#define SSA_OP_VIRTUAL_USES (SSA_OP_VUSE | SSA_OP_VMAYUSE) -#define SSA_OP_VIRTUAL_DEFS (SSA_OP_VMAYDEF | SSA_OP_VMUSTDEF) -#define SSA_OP_VIRTUAL_KILLS (SSA_OP_VMUSTKILL) -#define SSA_OP_ALL_VIRTUALS (SSA_OP_VIRTUAL_USES | SSA_OP_VIRTUAL_KILLS \ - | SSA_OP_VIRTUAL_DEFS) +#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_KILLS (SSA_OP_VIRTUAL_KILLS) -#define SSA_OP_ALL_OPERANDS (SSA_OP_ALL_USES | SSA_OP_ALL_DEFS \ - | SSA_OP_ALL_KILLS) +#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, +/* 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) \ @@ -227,50 +162,26 @@ typedef struct ssa_operand_iterator_d !op_iter_done (&(ITER)); \ 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. +/* 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. +/* 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 executes a loop over the V_MAY_DEF operands of STMT. The def - and use for each V_MAY_DEF is returned in DEFVAR and USEVAR. - ITER is an ssa_op_iter structure used to control the loop. */ -#define FOR_EACH_SSA_MAYDEF_OPERAND(DEFVAR, USEVAR, STMT, ITER) \ - for (op_iter_init_maydef (&(ITER), STMT, &(USEVAR), &(DEFVAR)); \ - !op_iter_done (&(ITER)); \ - op_iter_next_maymustdef (&(USEVAR), &(DEFVAR), &(ITER))) - -/* This macro executes a loop over the V_MUST_DEF operands of STMT. The def - and kill for each V_MUST_DEF is returned in DEFVAR and KILLVAR. - ITER is an ssa_op_iter structure used to control the loop. */ -#define FOR_EACH_SSA_MUSTDEF_OPERAND(DEFVAR, KILLVAR, STMT, ITER) \ - for (op_iter_init_mustdef (&(ITER), STMT, &(KILLVAR), &(DEFVAR)); \ - !op_iter_done (&(ITER)); \ - op_iter_next_maymustdef (&(KILLVAR), &(DEFVAR), &(ITER))) - -/* This macro executes a loop over the V_{MUST,MAY}_DEF of STMT. The def - and kill for each V_{MUST,MAY}_DEF is returned in DEFVAR and KILLVAR. - ITER is an ssa_op_iter structure used to control the loop. */ -#define FOR_EACH_SSA_MUST_AND_MAY_DEF_OPERAND(DEFVAR, KILLVAR, STMT, ITER)\ - for (op_iter_init_must_and_may_def (&(ITER), STMT, &(KILLVAR), &(DEFVAR));\ - !op_iter_done (&(ITER)); \ - op_iter_next_maymustdef (&(KILLVAR), &(DEFVAR), &(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) \ +#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))) @@ -279,7 +190,7 @@ typedef struct ssa_operand_iterator_d /* 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) = (TREE_CODE (STMT) == PHI_NODE \ + 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)); \ @@ -288,30 +199,31 @@ typedef struct ssa_operand_iterator_d /* 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) = (TREE_CODE (STMT) == PHI_NODE \ + 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. */ + +/* 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. */