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-rw-r--r--gcc/rtl-chkp.c302
1 files changed, 0 insertions, 302 deletions
diff --git a/gcc/rtl-chkp.c b/gcc/rtl-chkp.c
deleted file mode 100644
index 0149349ce08..00000000000
--- a/gcc/rtl-chkp.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/* RTL manipulation functions exported by Pointer Bounds Checker.
- Copyright (C) 2014-2018 Free Software Foundation, Inc.
- Contributed by Ilya Enkovich (ilya.enkovich@intel.com)
-
-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/>. */
-
-#include "config.h"
-#include "system.h"
-#include "coretypes.h"
-#include "backend.h"
-#include "target.h"
-#include "rtl.h"
-#include "tree.h"
-#include "memmodel.h"
-#include "emit-rtl.h"
-#include "expr.h"
-#include "rtl-chkp.h"
-#include "tree-chkp.h"
-
-static hash_map<tree, rtx> *chkp_rtx_bounds_map;
-
-/* Get bounds rtx associated with NODE via
- chkp_set_rtl_bounds call. */
-rtx
-chkp_get_rtl_bounds (tree node)
-{
- rtx *slot;
-
- if (!chkp_rtx_bounds_map)
- return NULL_RTX;
-
- slot = chkp_rtx_bounds_map->get (node);
- return slot ? *slot : NULL_RTX;
-}
-
-/* Associate bounds rtx VAL with NODE. */
-void
-chkp_set_rtl_bounds (tree node, rtx val)
-{
- if (!chkp_rtx_bounds_map)
- chkp_rtx_bounds_map = new hash_map<tree, rtx>;
-
- chkp_rtx_bounds_map->put (node, val);
-}
-
-/* Reset all bounds stored via chkp_set_rtl_bounds. */
-void
-chkp_reset_rtl_bounds ()
-{
- if (!chkp_rtx_bounds_map)
- return;
-
- delete chkp_rtx_bounds_map;
- chkp_rtx_bounds_map = NULL;
-}
-
-/* Split SLOT identifying slot for function value or
- argument into two parts SLOT_VAL and SLOT_BND.
- First is the slot for regular value and the other one is
- for bounds. */
-void
-chkp_split_slot (rtx slot, rtx *slot_val, rtx *slot_bnd)
-{
- int i;
- int val_num = 0;
- int bnd_num = 0;
- rtx *val_tmps;
- rtx *bnd_tmps;
-
- *slot_bnd = 0;
-
- if (!slot
- || GET_CODE (slot) != PARALLEL)
- {
- *slot_val = slot;
- return;
- }
-
- val_tmps = XALLOCAVEC (rtx, XVECLEN (slot, 0));
- bnd_tmps = XALLOCAVEC (rtx, XVECLEN (slot, 0));
-
- for (i = 0; i < XVECLEN (slot, 0); i++)
- {
- rtx elem = XVECEXP (slot, 0, i);
- rtx reg = GET_CODE (elem) == EXPR_LIST ? XEXP (elem, 0) : elem;
-
- if (!reg)
- continue;
-
- if (POINTER_BOUNDS_MODE_P (GET_MODE (reg)) || CONST_INT_P (reg))
- bnd_tmps[bnd_num++] = elem;
- else
- val_tmps[val_num++] = elem;
- }
-
- gcc_assert (val_num);
-
- if (!bnd_num)
- {
- *slot_val = slot;
- return;
- }
-
- if ((GET_CODE (val_tmps[0]) == EXPR_LIST) || (val_num > 1))
- *slot_val = gen_rtx_PARALLEL (GET_MODE (slot),
- gen_rtvec_v (val_num, val_tmps));
- else
- *slot_val = val_tmps[0];
-
- if ((GET_CODE (bnd_tmps[0]) == EXPR_LIST) || (bnd_num > 1))
- *slot_bnd = gen_rtx_PARALLEL (VOIDmode,
- gen_rtvec_v (bnd_num, bnd_tmps));
- else
- *slot_bnd = bnd_tmps[0];
-}
-
-/* Join previously splitted to VAL and BND rtx for function
- value or argument and return it. */
-rtx
-chkp_join_splitted_slot (rtx val, rtx bnd)
-{
- rtx res;
- int i, n = 0;
-
- if (!bnd)
- return val;
-
- if (GET_CODE (val) == PARALLEL)
- n += XVECLEN (val, 0);
- else
- n++;
-
- if (GET_CODE (bnd) == PARALLEL)
- n += XVECLEN (bnd, 0);
- else
- n++;
-
- res = gen_rtx_PARALLEL (GET_MODE (val), rtvec_alloc (n));
-
- n = 0;
-
- if (GET_CODE (val) == PARALLEL)
- for (i = 0; i < XVECLEN (val, 0); i++)
- XVECEXP (res, 0, n++) = XVECEXP (val, 0, i);
- else
- XVECEXP (res, 0, n++) = val;
-
- if (GET_CODE (bnd) == PARALLEL)
- for (i = 0; i < XVECLEN (bnd, 0); i++)
- XVECEXP (res, 0, n++) = XVECEXP (bnd, 0, i);
- else
- XVECEXP (res, 0, n++) = bnd;
-
- return res;
-}
-
-/* If PAR is PARALLEL holding registers then transform
- it into PARALLEL holding EXPR_LISTs of those regs
- and zero constant (similar to how function value
- on multiple registers looks like). */
-void
-chkp_put_regs_to_expr_list (rtx par)
-{
- int n;
-
- if (GET_CODE (par) != PARALLEL
- || GET_CODE (XVECEXP (par, 0, 0)) == EXPR_LIST)
- return;
-
- for (n = 0; n < XVECLEN (par, 0); n++)
- XVECEXP (par, 0, n) = gen_rtx_EXPR_LIST (VOIDmode,
- XVECEXP (par, 0, n),
- const0_rtx);
-}
-
-/* Search rtx PAR describing function return value for an
- item related to value at offset OFFS and return it.
- Return NULL if item was not found. */
-rtx
-chkp_get_value_with_offs (rtx par, rtx offs)
-{
- int n;
-
- gcc_assert (GET_CODE (par) == PARALLEL);
-
- for (n = 0; n < XVECLEN (par, 0); n++)
- {
- rtx par_offs = XEXP (XVECEXP (par, 0, n), 1);
- if (INTVAL (offs) == INTVAL (par_offs))
- return XEXP (XVECEXP (par, 0, n), 0);
- }
-
- return NULL;
-}
-
-/* Emit instructions to store BOUNDS for pointer VALUE
- stored in MEM.
- Function is used by expand to pass bounds for args
- passed on stack. */
-void
-chkp_emit_bounds_store (rtx bounds, rtx value, rtx mem)
-{
- gcc_assert (MEM_P (mem));
-
- if (REG_P (bounds) || CONST_INT_P (bounds))
- {
- rtx ptr;
-
- if (REG_P (value))
- ptr = value;
- else
- {
- rtx slot = adjust_address (value, Pmode, 0);
- ptr = gen_reg_rtx (Pmode);
- emit_move_insn (ptr, slot);
- }
-
- if (CONST_INT_P (bounds))
- bounds = targetm.calls.load_bounds_for_arg (value, ptr, bounds);
-
- targetm.calls.store_bounds_for_arg (ptr, mem,
- bounds, NULL);
- }
- else
- {
- int i;
-
- gcc_assert (GET_CODE (bounds) == PARALLEL);
- gcc_assert (GET_CODE (value) == PARALLEL || MEM_P (value) || REG_P (value));
-
- for (i = 0; i < XVECLEN (bounds, 0); i++)
- {
- rtx reg = XEXP (XVECEXP (bounds, 0, i), 0);
- rtx offs = XEXP (XVECEXP (bounds, 0, i), 1);
- rtx slot = adjust_address (mem, Pmode, INTVAL (offs));
- rtx ptr;
-
- if (GET_CODE (value) == PARALLEL)
- ptr = chkp_get_value_with_offs (value, offs);
- else if (MEM_P (value))
- {
- rtx tmp = adjust_address (value, Pmode, INTVAL (offs));
- ptr = gen_reg_rtx (Pmode);
- emit_move_insn (ptr, tmp);
- }
- else
- ptr = gen_rtx_SUBREG (Pmode, value, INTVAL (offs));
-
- targetm.calls.store_bounds_for_arg (ptr, slot, reg, NULL);
- }
- }
-}
-
-/* Emit code to copy bounds for structure VALUE of type TYPE
- copied to SLOT. */
-void
-chkp_copy_bounds_for_stack_parm (rtx slot, rtx value, tree type)
-{
- bitmap have_bound;
- bitmap_iterator bi;
- unsigned i;
- rtx tmp = NULL, bnd;
-
- gcc_assert (TYPE_SIZE (type));
- gcc_assert (MEM_P (value));
- gcc_assert (MEM_P (slot));
- gcc_assert (RECORD_OR_UNION_TYPE_P (type));
-
- bitmap_obstack_initialize (NULL);
- have_bound = BITMAP_ALLOC (NULL);
- chkp_find_bound_slots (type, have_bound);
-
- EXECUTE_IF_SET_IN_BITMAP (have_bound, 0, i, bi)
- {
- rtx ptr = adjust_address (value, Pmode, i * POINTER_SIZE / 8);
- rtx to = adjust_address (slot, Pmode, i * POINTER_SIZE / 8);
-
- if (!tmp)
- tmp = gen_reg_rtx (Pmode);
-
- emit_move_insn (tmp, ptr);
- bnd = targetm.calls.load_bounds_for_arg (ptr, tmp, NULL);
- targetm.calls.store_bounds_for_arg (tmp, to, bnd, NULL);
- }
-
- BITMAP_FREE (have_bound);
- bitmap_obstack_release (NULL);
-}
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