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tree.c (truth_type_for): New function.

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2012-09-29  Marc Glisse  <marc.glisse@inria.fr>

	* tree.c (truth_type_for): New function.
	* tree.h (truth_type_for): Declare.
	* gimple-fold.c (and_comparisons_1): Call it.
	(or_comparisons_1): Likewise.
	* tree-ssa-forwprop.c (forward_propagate_into_cond): Don't use
	boolean_type_node for vectors.

From-SVN: r191848
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Marc Glisse 2012-09-29 10:23:23 +02:00 committed by Marc Glisse
parent b1d6986c94
commit ae22ac3c62
5 changed files with 29 additions and 20 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2012-09-29 Marc Glisse <marc.glisse@inria.fr>
* tree.c (truth_type_for): New function.
* tree.h (truth_type_for): Declare.
* gimple-fold.c (and_comparisons_1): Call it.
(or_comparisons_1): Likewise.
* tree-ssa-forwprop.c (forward_propagate_into_cond): Don't use
boolean_type_node for vectors.
2012-09-28 Jan Hubicka <jh@suse.cz>
* basic-block.h (RDIV): Define.

21
gcc/gimple-fold.c
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@ -30,7 +30,6 @@ along with GCC; see the file COPYING3. If not see
#include "tree-ssa-propagate.h"
#include "target.h"
#include "gimple-fold.h"
#include "langhooks.h"
/* Return true when DECL can be referenced from current unit.
FROM_DECL (if non-null) specify constructor of variable DECL was taken from.
@ -1693,15 +1692,7 @@ static tree
and_comparisons_1 (enum tree_code code1, tree op1a, tree op1b,
enum tree_code code2, tree op2a, tree op2b)
{
tree truth_type = boolean_type_node;
if (TREE_CODE (TREE_TYPE (op1a)) == VECTOR_TYPE)
{
tree vec_type = TREE_TYPE (op1a);
tree elem = lang_hooks.types.type_for_size
(GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (vec_type))), 0);
truth_type = build_opaque_vector_type (elem,
TYPE_VECTOR_SUBPARTS (vec_type));
}
tree truth_type = truth_type_for (TREE_TYPE (op1a));
/* First check for ((x CODE1 y) AND (x CODE2 y)). */
if (operand_equal_p (op1a, op2a, 0)
@ -2165,15 +2156,7 @@ static tree
or_comparisons_1 (enum tree_code code1, tree op1a, tree op1b,
enum tree_code code2, tree op2a, tree op2b)
{
tree truth_type = boolean_type_node;
if (TREE_CODE (TREE_TYPE (op1a)) == VECTOR_TYPE)
{
tree vec_type = TREE_TYPE (op1a);
tree elem = lang_hooks.types.type_for_size
(GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (vec_type))), 0);
truth_type = build_opaque_vector_type (elem,
TYPE_VECTOR_SUBPARTS (vec_type));
}
tree truth_type = truth_type_for (TREE_TYPE (op1a));
/* First check for ((x CODE1 y) OR (x CODE2 y)). */
if (operand_equal_p (op1a, op2a, 0)

2
gcc/tree-ssa-forwprop.c
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@ -556,7 +556,7 @@ forward_propagate_into_cond (gimple_stmt_iterator *gsi_p)
/* We can do tree combining on SSA_NAME and comparison expressions. */
if (COMPARISON_CLASS_P (cond))
tmp = forward_propagate_into_comparison_1 (stmt, TREE_CODE (cond),
boolean_type_node,
TREE_TYPE (cond),
TREE_OPERAND (cond, 0),
TREE_OPERAND (cond, 1));
else if (TREE_CODE (cond) == SSA_NAME)

16
gcc/tree.c
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@ -10250,6 +10250,22 @@ signed_type_for (tree type)
return signed_or_unsigned_type_for (0, type);
}
/* If TYPE is a vector type, return a signed integer vector type with the
same width and number of subparts. Otherwise return boolean_type_node. */
tree
truth_type_for (tree type)
{
if (TREE_CODE (type) == VECTOR_TYPE)
{
tree elem = lang_hooks.types.type_for_size
(GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (type))), 0);
return build_opaque_vector_type (elem, TYPE_VECTOR_SUBPARTS (type));
}
else
return boolean_type_node;
}
/* Returns the largest value obtainable by casting something in INNER type to
OUTER type. */

1
gcc/tree.h
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@ -4769,6 +4769,7 @@ extern tree make_unsigned_type (int);
extern tree signed_or_unsigned_type_for (int, tree);
extern tree signed_type_for (tree);
extern tree unsigned_type_for (tree);
extern tree truth_type_for (tree);
extern void initialize_sizetypes (void);
extern void fixup_unsigned_type (tree);
extern tree build_pointer_type_for_mode (tree, enum machine_mode, bool);