X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Ftree-ssa-operands.h;h=4c586f7fb27da1462fcc6dd1e6c5b0784bf8b98e;hb=02026a8e1973ccdf13cce3963427976142ebb8d9;hp=ba9793d83460f676f61bda1f29dc5c510b51eecb;hpb=911908dca6d055235a653b76fc6826747c9a1f23;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/tree-ssa-operands.h b/gcc/tree-ssa-operands.h index ba9793d8346..4c586f7fb27 100644 --- a/gcc/tree-ssa-operands.h +++ b/gcc/tree-ssa-operands.h @@ -1,5 +1,6 @@ /* SSA operand management for trees. - Copyright (C) 2003, 2005, 2006, 2007 Free Software Foundation, Inc. + Copyright (C) 2003, 2005, 2006, 2007, 2008, 2010 + Free Software Foundation, Inc. This file is part of GCC. @@ -30,8 +31,8 @@ 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 @@ -42,85 +43,24 @@ 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; -typedef struct vuse_element_d -{ - tree use_var; - struct ssa_use_operand_d use_ptr; -} vuse_element_t; - -typedef struct vuse_vec_d -{ - unsigned int num_vuse; - vuse_element_t uses[1]; -} vuse_vec_t; -typedef struct vuse_vec_d *vuse_vec_p; - -#define VUSE_VECT_NUM_ELEM(V) (V).num_vuse -#define VUSE_VECT_ELEMENT_NC(V,X) (V).uses[(X)] -#define VUSE_ELEMENT_PTR_NC(V,X) (&(VUSE_VECT_ELEMENT_NC ((V),(X)).use_ptr)) -#define VUSE_ELEMENT_VAR_NC(V,X) (VUSE_VECT_ELEMENT_NC ((V),(X)).use_var) - -#ifdef ENABLE_CHECKING -#define VUSE_VECT_ELEMENT(V,X) \ - (gcc_assert (((unsigned int) (X)) < VUSE_VECT_NUM_ELEM (V)), \ - VUSE_VECT_ELEMENT_NC (V,X)) - -#define VUSE_ELEMENT_PTR(V,X) \ - (gcc_assert (((unsigned int) (X)) < VUSE_VECT_NUM_ELEM (V)), \ - VUSE_ELEMENT_PTR_NC (V, X)) - -#define SET_VUSE_VECT_ELEMENT(V,X,N) \ - (gcc_assert (((unsigned int) (X)) < VUSE_VECT_NUM_ELEM (V)), \ - VUSE_VECT_ELEMENT_NC (V,X) = (N)) - -#define SET_VUSE_ELEMENT_VAR(V,X,N) \ - (gcc_assert (((unsigned int) (X)) < VUSE_VECT_NUM_ELEM (V)), \ - VUSE_VECT_ELEMENT_NC ((V),(X)).use_var = (N)) - -#define SET_VUSE_ELEMENT_PTR(V,X,N) \ - (gcc_assert (((unsigned int) (X)) < VUSE_VECT_NUM_ELEM (V)), \ - VUSE_ELEMENT_PTR_NC (V, X) = (N)) -#else -#define VUSE_VECT_ELEMENT(V,X) VUSE_VECT_ELEMENT_NC(V,X) -#define VUSE_ELEMENT_PTR(V,X) VUSE_ELEMENT_PTR_NC(V,X) -#define SET_VUSE_VECT_ELEMENT(V,X,N) VUSE_VECT_ELEMENT_NC(V,X) = (N) -#define SET_VUSE_ELEMENT_PTR(V,X,N) VUSE_ELEMENT_PTR_NC(V,X) = (N) -#define SET_VUSE_ELEMENT_VAR(V,X,N) VUSE_VECT_ELEMENT_NC ((V),(X)).use_var = (N) -#endif - -#define VUSE_ELEMENT_VAR(V,X) (VUSE_VECT_ELEMENT ((V),(X)).use_var) - -/* This represents the virtual ops of a stmt. */ -struct voptype_d -{ - struct voptype_d *next; - tree def_var; - vuse_vec_t usev; -}; -typedef struct voptype_d *voptype_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 ssa_operand_memory_d GTY((chain_next("%h.next"))) -{ + +struct GTY((chain_next("%h.next"), variable_size)) ssa_operand_memory_d { struct ssa_operand_memory_d *next; char mem[1]; }; -/* Number of different size free buckets for virtual operands. */ -#define NUM_VOP_FREE_BUCKETS 29 - /* Per-function operand caches. */ -struct ssa_operands GTY(()) { +struct GTY(()) ssa_operands { struct ssa_operand_memory_d *operand_memory; unsigned operand_memory_index; /* Current size of the operand memory buffer. */ @@ -130,42 +70,14 @@ struct ssa_operands GTY(()) { struct def_optype_d * GTY ((skip (""))) free_defs; struct use_optype_d * GTY ((skip (""))) free_uses; - struct voptype_d * GTY ((skip (""))) vop_free_buckets[NUM_VOP_FREE_BUCKETS]; - VEC(tree,heap) * GTY ((skip (""))) mpt_table; }; -/* 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 (VDEF, VUSE). */ - struct voptype_d * vdef_ops; - struct voptype_d * vuse_ops; - - /* Sets of memory symbols loaded and stored. */ - bitmap stores; - bitmap loads; -}; - -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 VDEF_OPS(STMT) (stmt_ann (STMT)->operands.vdef_ops) - -#define LOADED_SYMS(STMT) (stmt_ann (STMT)->operands.loads) -#define STORED_SYMS(STMT) (stmt_ann (STMT)->operands.stores) +#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))) @@ -173,25 +85,11 @@ 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,X) VUSE_ELEMENT_PTR ((OP)->usev, (X)) -#define VUSE_OP(OP,X) VUSE_ELEMENT_VAR ((OP)->usev, (X)) -#define SET_VUSE_OP(OP,X,N) SET_VUSE_ELEMENT_VAR ((OP)->usev, (X), (N)) -#define VUSE_NUM(OP) VUSE_VECT_NUM_ELEM ((OP)->usev) -#define VUSE_VECT(OP) &((OP)->usev) - -#define VDEF_RESULT_PTR(OP) (&((OP)->def_var)) -#define VDEF_RESULT(OP) ((OP)->def_var) -#define VDEF_OP_PTR(OP,X) VUSE_OP_PTR (OP, X) -#define VDEF_OP(OP,X) VUSE_OP (OP, X) -#define SET_VDEF_OP(OP,X,N) SET_VUSE_OP (OP, X, N) -#define VDEF_NUM(OP) VUSE_VECT_NUM_ELEM ((OP)->usev) -#define VDEF_VECT(OP) &((OP)->usev) - -#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)) @@ -204,15 +102,10 @@ typedef struct stmt_operands_d *stmt_operands_p; extern void init_ssa_operands (void); extern void fini_ssa_operands (void); -extern void free_ssa_operands (stmt_operands_p); -extern void update_stmt_operands (tree); -extern void free_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 int operand_build_cmp (const void *, const void *); -extern void create_ssa_artificial_load_stmt (tree, tree, bool); - extern void dump_immediate_uses (FILE *file); extern void dump_immediate_uses_for (FILE *file, tree var); extern void debug_immediate_uses (void); @@ -222,88 +115,70 @@ extern void debug_decl_set (bitmap); extern bool ssa_operands_active (void); -extern void add_to_addressable_set (tree, bitmap *); -extern void push_stmt_changes (tree *); -extern void pop_stmt_changes (tree *); -extern void discard_stmt_changes (tree *); +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_vdef + 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; - voptype_p vuses; - voptype_p vdefs; - voptype_p mayuses; - enum ssa_op_iter_type iter_type; int phi_i; int num_phi; - tree phi_stmt; - bool done; - unsigned int vuse_index; - unsigned int mayuse_index; + 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 VDEFS. */ -#define SSA_OP_VDEF 0x10 /* DEF portion of VDEFS. */ +#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_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, +/* 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)); \ - TREEVAR = op_iter_next_tree (&(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. +/* 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 VDEF operands of STMT. The def - and use vector for each VDEF is returned in DEFVAR and USEVECT. - ITER is an ssa_op_iter structure used to control the loop. */ -#define FOR_EACH_SSA_VDEF_OPERAND(DEFVAR, USEVECT, STMT, ITER) \ - for (op_iter_init_vdef (&(ITER), STMT, &(USEVECT), &(DEFVAR)); \ - !op_iter_done (&(ITER)); \ - op_iter_next_vdef (&(USEVECT), &(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. */ @@ -316,7 +191,7 @@ 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)); \ @@ -325,24 +200,24 @@ 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. */