commit gcc-4.4.3 which is used to build gcc-4.4.3 Android toolchain in master.

The source is based on fsf gcc-4.4.3 and contains local patches which
are recorded in gcc-4.4.3/README.google.

Change-Id: Id8c6d6927df274ae9749196a1cc24dbd9abc9887

1 files changed, 349 insertions, 0 deletions

diff --git a/gcc-4.4.3/gcc/tree-ssa-operands.h b/gcc-4.4.3/gcc/tree-ssa-operands.h
new file mode 100644
index 000000000..bd30f82c2
--- /dev/null
+++ b/gcc-4.4.3/gcc/tree-ssa-operands.h
@@ -0,0 +1,349 @@
+/* SSA operand management for trees.
+   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 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 		NULL
+#define NULL_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;
+
+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 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 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;
+   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)->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 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)	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 copy_virtual_operands (gimple, gimple);
+extern int operand_build_cmp (const void *, const void *);
+extern void create_ssa_artificial_load_stmt (gimple, gimple, bool);
+
+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 push_stmt_changes (gimple *);
+extern void pop_stmt_changes (gimple *);
+extern void discard_stmt_changes (gimple *);
+void add_to_addressable_set (tree, bitmap *);
+
+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
+};
+
+/* 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
+{
+  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;
+  gimple phi_stmt;
+  bool done;
+  unsigned int vuse_index;
+  unsigned int mayuse_index;
+} 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_VMAYUSE		0x08	/* USE portion of VDEFS.  */
+#define SSA_OP_VDEF		0x10	/* DEF portion of VDEFS.  */
+
+/* These are commonly grouped operand flags.  */
+#define SSA_OP_VIRTUAL_USES	(SSA_OP_VUSE | SSA_OP_VMAYUSE)
+#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));					\
+       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 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.  */
+#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  */