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mode-classes.def (MODE_POINTER_BOUNDS): New. 

* mode-classes.def (MODE_POINTER_BOUNDS): New.
        * tree.def (POINTER_BOUNDS_TYPE): New.
        * genmodes.c (complete_mode): Support MODE_POINTER_BOUNDS.
        (POINTER_BOUNDS_MODE): New.
        (make_pointer_bounds_mode): New.
        * machmode.h (POINTER_BOUNDS_MODE_P): New.
        * stor-layout.c (int_mode_for_mode): Support MODE_POINTER_BOUNDS.
        (layout_type): Support POINTER_BOUNDS_TYPE.
        * tree-pretty-print.c (dump_generic_node): Support POINTER_BOUNDS_TYPE.
        * tree.c (build_int_cst_wide): Support POINTER_BOUNDS_TYPE.
        (type_contains_placeholder_1): Likewise.
        * tree.h (POINTER_BOUNDS_TYPE_P): New.
        * varasm.c (output_constant): Support POINTER_BOUNDS_TYPE.
        * doc/rtl.texi (MODE_POINTER_BOUNDS): New.

From-SVN: r204045
This commit is contained in:
Ilya Enkovich 2013-10-25 05:36:14 +00:00 committed by Kirill Yukhin
parent ca9f377992
commit 65f55baca4
11 changed files with 64 additions and 1 deletions
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17
gcc/ChangeLog
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@ -1,3 +1,20 @@
2013-10-24 Ilya Enkovich <ilya.enkovich@intel.com>
* mode-classes.def (MODE_POINTER_BOUNDS): New.
* tree.def (POINTER_BOUNDS_TYPE): New.
* genmodes.c (complete_mode): Support MODE_POINTER_BOUNDS.
(POINTER_BOUNDS_MODE): New.
(make_pointer_bounds_mode): New.
* machmode.h (POINTER_BOUNDS_MODE_P): New.
* stor-layout.c (int_mode_for_mode): Support MODE_POINTER_BOUNDS.
(layout_type): Support POINTER_BOUNDS_TYPE.
* tree-pretty-print.c (dump_generic_node): Support POINTER_BOUNDS_TYPE.
* tree.c (build_int_cst_wide): Support POINTER_BOUNDS_TYPE.
(type_contains_placeholder_1): Likewise.
* tree.h (POINTER_BOUNDS_TYPE_P): New.
* varasm.c (output_constant): Support POINTER_BOUNDS_TYPE.
* doc/rtl.texi (MODE_POINTER_BOUNDS): New.
2013-10-24 Igor Shevlyakov <igor.shevlyakov@gmail.com>
* expr.c (expand_expr_real_1): Use mode of memory reference rather

6
gcc/doc/rtl.texi
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@ -1382,6 +1382,12 @@ any @code{CC_MODE} modes listed in the @file{@var{machine}-modes.def}.
@xref{Jump Patterns},
also see @ref{Condition Code}.
@findex MODE_POINTER_BOUNDS
@item MODE_POINTER_BOUNDS
Pointer bounds modes. Used to represent values of pointer bounds type.
Operations in these modes may be executed as NOPs depending on hardware
features and environment setup.
@findex MODE_RANDOM
@item MODE_RANDOM
This is a catchall mode class for modes which don't fit into the above

14
gcc/genmodes.c
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@ -333,6 +333,7 @@ complete_mode (struct mode_data *m)
break;
case MODE_INT:
case MODE_POINTER_BOUNDS:
case MODE_FLOAT:
case MODE_DECIMAL_FLOAT:
case MODE_FRACT:
@ -534,6 +535,19 @@ make_special_mode (enum mode_class cl, const char *name,
new_mode (cl, name, file, line);
}
#define POINTER_BOUNDS_MODE(N, Y) \
make_pointer_bounds_mode (#N, Y, __FILE__, __LINE__)
static void ATTRIBUTE_UNUSED
make_pointer_bounds_mode (const char *name,
unsigned int bytesize,
const char *file, unsigned int line)
{
struct mode_data *m = new_mode (MODE_POINTER_BOUNDS, name, file, line);
m->bytesize = bytesize;
}
#define INT_MODE(N, Y) FRACTIONAL_INT_MODE (N, -1U, Y)
#define FRACTIONAL_INT_MODE(N, B, Y) \
make_int_mode (#N, B, Y, __FILE__, __LINE__)

3
gcc/machmode.h
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@ -174,6 +174,9 @@ extern const unsigned char mode_class[NUM_MACHINE_MODES];
|| CLASS == MODE_ACCUM \
|| CLASS == MODE_UACCUM)
#define POINTER_BOUNDS_MODE_P(MODE) \
(GET_MODE_CLASS (MODE) == MODE_POINTER_BOUNDS)
/* Get the size in bytes and bits of an object of mode MODE. */
extern CONST_MODE_SIZE unsigned char mode_size[NUM_MACHINE_MODES];

1
gcc/mode-classes.def
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@ -22,6 +22,7 @@ along with GCC; see the file COPYING3. If not see
DEF_MODE_CLASS (MODE_CC), /* condition code in a register */ \
DEF_MODE_CLASS (MODE_INT), /* integer */ \
DEF_MODE_CLASS (MODE_PARTIAL_INT), /* integer with padding bits */ \
DEF_MODE_CLASS (MODE_POINTER_BOUNDS), /* bounds */ \
DEF_MODE_CLASS (MODE_FRACT), /* signed fractional number */ \
DEF_MODE_CLASS (MODE_UFRACT), /* unsigned fractional number */ \
DEF_MODE_CLASS (MODE_ACCUM), /* signed accumulator */ \

9
gcc/stor-layout.c
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@ -383,6 +383,7 @@ int_mode_for_mode (enum machine_mode mode)
case MODE_VECTOR_ACCUM:
case MODE_VECTOR_UFRACT:
case MODE_VECTOR_UACCUM:
case MODE_POINTER_BOUNDS:
mode = mode_for_size (GET_MODE_BITSIZE (mode), MODE_INT, 0);
break;
@ -2122,6 +2123,14 @@ layout_type (tree type)
SET_TYPE_MODE (type, VOIDmode);
break;
case POINTER_BOUNDS_TYPE:
SET_TYPE_MODE (type,
mode_for_size (TYPE_PRECISION (type),
MODE_POINTER_BOUNDS, 0));
TYPE_SIZE (type) = bitsize_int (GET_MODE_BITSIZE (TYPE_MODE (type)));
TYPE_SIZE_UNIT (type) = size_int (GET_MODE_SIZE (TYPE_MODE (type)));
break;
case OFFSET_TYPE:
TYPE_SIZE (type) = bitsize_int (POINTER_SIZE);
TYPE_SIZE_UNIT (type) = size_int (POINTER_SIZE / BITS_PER_UNIT);

1
gcc/tree-pretty-print.c
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@ -866,6 +866,7 @@ dump_generic_node (pretty_printer *buffer, tree node, int spc, int flags,
break;
case VOID_TYPE:
case POINTER_BOUNDS_TYPE:
case INTEGER_TYPE:
case REAL_TYPE:
case FIXED_POINT_TYPE:

4
gcc/tree.c
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@ -1221,7 +1221,8 @@ build_int_cst_wide (tree type, unsigned HOST_WIDE_INT low, HOST_WIDE_INT hi)
case POINTER_TYPE:
case REFERENCE_TYPE:
/* Cache NULL pointer. */
case POINTER_BOUNDS_TYPE:
/* Cache NULL pointer and zero bounds. */
if (!hi && !low)
{
limit = 1;
@ -3273,6 +3274,7 @@ type_contains_placeholder_1 (const_tree type)
switch (TREE_CODE (type))
{
case VOID_TYPE:
case POINTER_BOUNDS_TYPE:
case COMPLEX_TYPE:
case ENUMERAL_TYPE:
case BOOLEAN_TYPE:

5
gcc/tree.def
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@ -232,6 +232,11 @@ DEFTREECODE (QUAL_UNION_TYPE, "qual_union_type", tcc_type, 0)
/* The void type in C */
DEFTREECODE (VOID_TYPE, "void_type", tcc_type, 0)
/* Type to hold bounds for a pointer.
Has TYPE_PRECISION component to specify number of bits used
by this type. */
DEFTREECODE (POINTER_BOUNDS_TYPE, "pointer_bounds_type", tcc_type, 0)
/* Type of functions. Special fields:
TREE_TYPE type of value returned.
TYPE_ARG_TYPES list of types of arguments expected.

4
gcc/tree.h
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@ -542,6 +542,10 @@ extern void omp_clause_range_check_failed (const_tree, const char *, int,
/* Nonzero if this type is a complete type. */
#define COMPLETE_TYPE_P(NODE) (TYPE_SIZE (NODE) != NULL_TREE)
/* Nonzero if this type is a pointer bounds type. */
#define POINTER_BOUNDS_TYPE_P(NODE) \
(TREE_CODE (NODE) == POINTER_BOUNDS_TYPE)
/* Nonzero if this type is the (possibly qualified) void type. */
#define VOID_TYPE_P(NODE) (TREE_CODE (NODE) == VOID_TYPE)

1
gcc/varasm.c
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@ -4704,6 +4704,7 @@ output_constant (tree exp, unsigned HOST_WIDE_INT size, unsigned int align)
case REFERENCE_TYPE:
case OFFSET_TYPE:
case FIXED_POINT_TYPE:
case POINTER_BOUNDS_TYPE:
if (! assemble_integer (expand_expr (exp, NULL_RTX, VOIDmode,
EXPAND_INITIALIZER),
MIN (size, thissize), align, 0))