#include "gimplify.h"
#include "tree-dfa.h"
#include "builtins.h"
-#include "plugin-api.h"
-#include "ipa-ref.h"
#include "cgraph.h"
#include "generic-match.h"
#include "optabs.h"
fold_convert_loc (loc, type,
TREE_OPERAND (arg0, 0)));
- /* X - (X / Y) * Y is X % Y. */
- if ((INTEGRAL_TYPE_P (type) || VECTOR_INTEGER_TYPE_P (type))
- && TREE_CODE (arg1) == MULT_EXPR
- && TREE_CODE (TREE_OPERAND (arg1, 0)) == TRUNC_DIV_EXPR
- && operand_equal_p (arg0,
- TREE_OPERAND (TREE_OPERAND (arg1, 0), 0), 0)
- && operand_equal_p (TREE_OPERAND (TREE_OPERAND (arg1, 0), 1),
- TREE_OPERAND (arg1, 1), 0))
- return
- fold_convert_loc (loc, type,
- fold_build2_loc (loc, TRUNC_MOD_EXPR, TREE_TYPE (arg0),
- arg0, TREE_OPERAND (arg1, 1)));
-
if (! FLOAT_TYPE_P (type))
{
/* Fold A - (A & B) into ~B & A. */
fold_convert_loc (loc, type,
negate_expr (arg1)));
- /* Try folding difference of addresses. */
- {
- HOST_WIDE_INT diff;
-
- if ((TREE_CODE (arg0) == ADDR_EXPR
- || TREE_CODE (arg1) == ADDR_EXPR)
- && ptr_difference_const (arg0, arg1, &diff))
- return build_int_cst_type (type, diff);
- }
-
/* Fold &a[i] - &a[j] to i-j. */
if (TREE_CODE (arg0) == ADDR_EXPR
&& TREE_CODE (TREE_OPERAND (arg0, 0)) == ARRAY_REF
type);
}
- /* Similarly for a NEGATE_EXPR. */
- if (TREE_CODE (arg0) == NEGATE_EXPR
- && TREE_CODE (arg1) == INTEGER_CST
- && 0 != (tem = negate_expr (fold_convert_loc (loc, TREE_TYPE (arg0),
- arg1)))
- && TREE_CODE (tem) == INTEGER_CST
- && !TREE_OVERFLOW (tem))
- return fold_build2_loc (loc, code, type, TREE_OPERAND (arg0, 0), tem);
-
/* Similarly for a BIT_XOR_EXPR; X ^ C1 == C2 is X == (C1 ^ C2). */
if (TREE_CODE (arg0) == BIT_XOR_EXPR
&& TREE_CODE (arg1) == INTEGER_CST
return omit_one_operand_loc (loc, type, rslt, arg0);
}
- /* If we have (A | C) == D where C & ~D != 0, convert this into 0.
- Similarly for NE_EXPR. */
- if (TREE_CODE (arg0) == BIT_IOR_EXPR
- && TREE_CODE (arg1) == INTEGER_CST
- && TREE_CODE (TREE_OPERAND (arg0, 1)) == INTEGER_CST)
- {
- tree notd = fold_build1_loc (loc, BIT_NOT_EXPR, TREE_TYPE (arg1), arg1);
- tree candnotd
- = fold_build2_loc (loc, BIT_AND_EXPR, TREE_TYPE (arg0),
- TREE_OPERAND (arg0, 1),
- fold_convert_loc (loc, TREE_TYPE (arg0), notd));
- tree rslt = code == EQ_EXPR ? integer_zero_node : integer_one_node;
- if (integer_nonzerop (candnotd))
- return omit_one_operand_loc (loc, type, rslt, arg0);
- }
-
/* If this is a comparison of a field, we may be able to simplify it. */
if ((TREE_CODE (arg0) == COMPONENT_REF
|| TREE_CODE (arg0) == BIT_FIELD_REF)
}
}
- /* (X ^ Y) == 0 becomes X == Y, and (X ^ Y) != 0 becomes X != Y. */
- if (integer_zerop (arg1)
- && TREE_CODE (arg0) == BIT_XOR_EXPR)
- return fold_build2_loc (loc, code, type, TREE_OPERAND (arg0, 0),
- TREE_OPERAND (arg0, 1));
-
- /* (X ^ Y) == Y becomes X == 0. We know that Y has no side-effects. */
- if (TREE_CODE (arg0) == BIT_XOR_EXPR
- && operand_equal_p (TREE_OPERAND (arg0, 1), arg1, 0))
- return fold_build2_loc (loc, code, type, TREE_OPERAND (arg0, 0),
- build_zero_cst (TREE_TYPE (arg0)));
- /* Likewise (X ^ Y) == X becomes Y == 0. X has no side-effects. */
- if (TREE_CODE (arg0) == BIT_XOR_EXPR
- && operand_equal_p (TREE_OPERAND (arg0, 0), arg1, 0)
- && reorder_operands_p (TREE_OPERAND (arg0, 1), arg1))
- return fold_build2_loc (loc, code, type, TREE_OPERAND (arg0, 1),
- build_zero_cst (TREE_TYPE (arg0)));
-
- /* (X ^ C1) op C2 can be rewritten as X op (C1 ^ C2). */
- if (TREE_CODE (arg0) == BIT_XOR_EXPR
- && TREE_CODE (arg1) == INTEGER_CST
- && TREE_CODE (TREE_OPERAND (arg0, 1)) == INTEGER_CST)
- return fold_build2_loc (loc, code, type, TREE_OPERAND (arg0, 0),
- fold_build2_loc (loc, BIT_XOR_EXPR, TREE_TYPE (arg1),
- TREE_OPERAND (arg0, 1), arg1));
-
/* Fold (~X & C) == 0 into (X & C) != 0 and (~X & C) != 0 into
(X & C) == 0 when C is a single bit. */
if (TREE_CODE (arg0) == BIT_AND_EXPR
return omit_one_operand_loc (loc, type, res, arg0);
}
- /* Fold -X op -Y as X op Y, where op is eq/ne. */
- if (TREE_CODE (arg0) == NEGATE_EXPR
- && TREE_CODE (arg1) == NEGATE_EXPR)
- return fold_build2_loc (loc, code, type,
- TREE_OPERAND (arg0, 0),
- fold_convert_loc (loc, TREE_TYPE (arg0),
- TREE_OPERAND (arg1, 0)));
-
/* Fold (X & C) op (Y & C) as (X ^ Y) & C op 0", and symmetries. */
if (TREE_CODE (arg0) == BIT_AND_EXPR
&& TREE_CODE (arg1) == BIT_AND_EXPR)
#undef fold
static void fold_checksum_tree (const_tree, struct md5_ctx *,
- hash_table<pointer_hash<const tree_node> > *);
+ hash_table<nofree_ptr_hash<const tree_node> > *);
static void fold_check_failed (const_tree, const_tree);
void print_fold_checksum (const_tree);
tree ret;
struct md5_ctx ctx;
unsigned char checksum_before[16], checksum_after[16];
- hash_table<pointer_hash<const tree_node> > ht (32);
+ hash_table<nofree_ptr_hash<const tree_node> > ht (32);
md5_init_ctx (&ctx);
fold_checksum_tree (expr, &ctx, &ht);
{
struct md5_ctx ctx;
unsigned char checksum[16], cnt;
- hash_table<pointer_hash<const tree_node> > ht (32);
+ hash_table<nofree_ptr_hash<const tree_node> > ht (32);
md5_init_ctx (&ctx);
fold_checksum_tree (expr, &ctx, &ht);
static void
fold_checksum_tree (const_tree expr, struct md5_ctx *ctx,
- hash_table<pointer_hash <const tree_node> > *ht)
+ hash_table<nofree_ptr_hash <const tree_node> > *ht)
{
const tree_node **slot;
enum tree_code code;
int i;
unsigned char checksum[16];
struct md5_ctx ctx;
- hash_table<pointer_hash<const tree_node> > ht (32);
+ hash_table<nofree_ptr_hash<const tree_node> > ht (32);
md5_init_ctx (&ctx);
fold_checksum_tree (t, &ctx, &ht);
#ifdef ENABLE_FOLD_CHECKING
unsigned char checksum_before[16], checksum_after[16];
struct md5_ctx ctx;
- hash_table<pointer_hash<const tree_node> > ht (32);
+ hash_table<nofree_ptr_hash<const tree_node> > ht (32);
md5_init_ctx (&ctx);
fold_checksum_tree (op0, &ctx, &ht);
checksum_after_op0[16],
checksum_after_op1[16];
struct md5_ctx ctx;
- hash_table<pointer_hash<const tree_node> > ht (32);
+ hash_table<nofree_ptr_hash<const tree_node> > ht (32);
md5_init_ctx (&ctx);
fold_checksum_tree (op0, &ctx, &ht);
checksum_after_op1[16],
checksum_after_op2[16];
struct md5_ctx ctx;
- hash_table<pointer_hash<const tree_node> > ht (32);
+ hash_table<nofree_ptr_hash<const tree_node> > ht (32);
md5_init_ctx (&ctx);
fold_checksum_tree (op0, &ctx, &ht);
checksum_after_fn[16],
checksum_after_arglist[16];
struct md5_ctx ctx;
- hash_table<pointer_hash<const tree_node> > ht (32);
+ hash_table<nofree_ptr_hash<const tree_node> > ht (32);
int i;
md5_init_ctx (&ctx);
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