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fold-const.c (build_range_check): If !in_p and recursive call fails, exit immediately. 

* fold-const.c (build_range_check): If !in_p and recursive call
	fails, exit immediately.  If high - low overflows and etype is
	a signed type, retry with unsigned etype.
	(merge_ranges): If !in0_p and !in1_p, handle even range2 adjacent
	to range1 at TYPE_MAX_VALUE and TYPE_MIN_VALUE.

	* gcc.dg/range-test-1.c: New test.
	* g++.dg/opt/range-test-1.C: New test.

From-SVN: r83369
This commit is contained in:
Jakub Jelinek 2004-06-19 01:15:59 +02:00 committed by Jakub Jelinek
parent caf2523d6d
commit e1af829942
5 changed files with 504 additions and 7 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2004-06-19 Jakub Jelinek <jakub@redhat.com>
* fold-const.c (build_range_check): If !in_p and recursive call
fails, exit immediately. If high - low overflows and etype is
a signed type, retry with unsigned etype.
(merge_ranges): If !in0_p and !in1_p, handle even range2 adjacent
to range1 at TYPE_MAX_VALUE and TYPE_MIN_VALUE.
2004-06-18 Richard Henderson <rth@redhat.com>
* c-gimplify.c (gimplify_condition): Remove.

118
gcc/fold-const.c
View File

@ -3776,7 +3776,7 @@ make_range (tree exp, int *pin_p, tree *plow, tree *phigh)
/* Given a range, LOW, HIGH, and IN_P, an expression, EXP, and a result
type, TYPE, return an expression to test if EXP is in (or out of, depending
on IN_P) the range. */
on IN_P) the range. Return 0 if the test couldn't be created. */
static tree
build_range_check (tree type, tree exp, int in_p, tree low, tree high)
@ -3784,9 +3784,14 @@ build_range_check (tree type, tree exp, int in_p, tree low, tree high)
tree etype = TREE_TYPE (exp);
tree value;
if (! in_p
&& (0 != (value = build_range_check (type, exp, 1, low, high))))
return invert_truthvalue (value);
if (! in_p)
{
value = build_range_check (type, exp, 1, low, high);
if (value != 0)
return invert_truthvalue (value);
return 0;
}
if (low == 0 && high == 0)
return fold_convert (type, integer_one_node);
@ -3842,8 +3847,39 @@ build_range_check (tree type, tree exp, int in_p, tree low, tree high)
}
}
if (0 != (value = const_binop (MINUS_EXPR, high, low, 0))
&& ! TREE_OVERFLOW (value))
value = const_binop (MINUS_EXPR, high, low, 0);
if (value != 0 && TREE_OVERFLOW (value) && ! TYPE_UNSIGNED (etype))
{
tree utype, minv, maxv;
/* Check if (unsigned) INT_MAX + 1 == (unsigned) INT_MIN
for the type in question, as we rely on this here. */
switch (TREE_CODE (etype))
{
case INTEGER_TYPE:
case ENUMERAL_TYPE:
case CHAR_TYPE:
utype = lang_hooks.types.unsigned_type (etype);
maxv = fold_convert (utype, TYPE_MAX_VALUE (etype));
maxv = range_binop (PLUS_EXPR, NULL_TREE, maxv, 1,
integer_one_node, 1);
minv = fold_convert (utype, TYPE_MIN_VALUE (etype));
if (integer_zerop (range_binop (NE_EXPR, integer_type_node,
minv, 1, maxv, 1)))
{
etype = utype;
high = fold_convert (etype, high);
low = fold_convert (etype, low);
exp = fold_convert (etype, exp);
value = const_binop (MINUS_EXPR, high, low, 0);
}
break;
default:
break;
}
}
if (value != 0 && ! TREE_OVERFLOW (value))
return build_range_check (type,
fold (build2 (MINUS_EXPR, etype, exp, low)),
1, fold_convert (etype, integer_zero_node),
@ -3973,7 +4009,75 @@ merge_ranges (int *pin_p, tree *plow, tree *phigh, int in0_p, tree low0,
1, low1, 0)))
in_p = 0, low = low0, high = high1;
else
return 0;
{
/* Canonicalize - [min, x] into - [-, x]. */
if (low0 && TREE_CODE (low0) == INTEGER_CST)
switch (TREE_CODE (TREE_TYPE (low0)))
{
case ENUMERAL_TYPE:
if (TYPE_PRECISION (TREE_TYPE (low0))
!= GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (low0))))
break;
/* FALLTHROUGH */
case INTEGER_TYPE:
case CHAR_TYPE:
if (tree_int_cst_equal (low0,
TYPE_MIN_VALUE (TREE_TYPE (low0))))
low0 = 0;
break;
case POINTER_TYPE:
if (TYPE_UNSIGNED (TREE_TYPE (low0))
&& integer_zerop (low0))
low0 = 0;
break;
default:
break;
}
/* Canonicalize - [x, max] into - [x, -]. */
if (high1 && TREE_CODE (high1) == INTEGER_CST)
switch (TREE_CODE (TREE_TYPE (high1)))
{
case ENUMERAL_TYPE:
if (TYPE_PRECISION (TREE_TYPE (high1))
!= GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (high1))))
break;
/* FALLTHROUGH */
case INTEGER_TYPE:
case CHAR_TYPE:
if (tree_int_cst_equal (high1,
TYPE_MAX_VALUE (TREE_TYPE (high1))))
high1 = 0;
break;
case POINTER_TYPE:
if (TYPE_UNSIGNED (TREE_TYPE (high1))
&& integer_zerop (range_binop (PLUS_EXPR, NULL_TREE,
high1, 1,
integer_one_node, 1)))
high1 = 0;
break;
default:
break;
}
/* The ranges might be also adjacent between the maximum and
minimum values of the given type. For
- [{min,-}, x] and - [y, {max,-}] ranges where x + 1 < y
return + [x + 1, y - 1]. */
if (low0 == 0 && high1 == 0)
{
low = range_binop (PLUS_EXPR, NULL_TREE, high0, 1,
integer_one_node, 1);
high = range_binop (MINUS_EXPR, NULL_TREE, low1, 0,
integer_one_node, 0);
if (low == 0 || high == 0)
return 0;
in_p = 1;
}
else
return 0;
}
}
else if (subset)
in_p = 0, low = low0, high = high0;

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2004-06-19 Jakub Jelinek <jakub@redhat.com>
* gcc.dg/range-test-1.c: New test.
* g++.dg/opt/range-test-1.C: New test.
2004-06-17 Richard Henderson <rth@redhat.com>
* objc.dg/sync-1.m: New.

212
gcc/testsuite/g++.dg/opt/range-test-1.C Normal file
View File

@ -0,0 +1,212 @@
// Test fold-const.c (fold_range_test) optimizations.
// { dg-do run } */
// { dg-options "-O2" } */
#include <stdlib.h>
#include <stdio.h>
#include <limits.h>
#if (INT_MAX == 2147483647) && (INT_MIN == -2147483648) \
&& (SCHAR_MIN == -128) && (SCHAR_MAX == 127) \
&& (UCHAR_MIN == 0) && (UCHAR_MAX == 255)
#ifndef T
enum integers
{
int_smallest = INT_MIN,
int_2ndsmallest = INT_MIN + 1,
int_3rdsmallest = INT_MIN + 2,
int_minus2 = -2,
int_minus1 = -1,
int_zero = 0,
int_one = 1,
int_two = 2,
int_3rdlargest = INT_MAX - 2,
int_2ndlargest = INT_MAX - 1,
int_largest = INT_MAX
};
enum smallenum
{
smalle_minus4 = -4,
smalle_minus3 = -3,
smalle_minus2 = -2,
smalle_minus1 = -1,
smalle_zero = 0,
smalle_one = 1,
smalle_two = 2,
smalle_three = 3
};
enum enum2
{
enum2_two = 2,
enum2_three = 3,
enum2_four = 4,
enum2_five = 5
};
enum enum3
{
enum3_zero,
enum3_one,
enum3_two,
enum3_three,
enum3_four,
enum3_five,
enum3_six,
enum3_seven
};
int var;
void
check ()
{
++var;
}
#define T(IDX, TYPE, TEST, YESARR, NOARR) \
void __attribute__((noinline)) \
test##IDX (TYPE x) \
{ \
if (TEST) \
check (); \
}
#include "range-test-1.C"
#undef T
int
main ()
{
int i, fails = 0;
#define C ,
#define T(IDX, TYPE, TEST, YESARR, NOARR) \
{ \
static TYPE yesarr##IDX [] = YESARR; \
static TYPE noarr##IDX [] = NOARR; \
for (i = 0; i < (int) (sizeof (yesarr##IDX) / sizeof (TYPE)); ++i) \
{ \
var = 0; \
test##IDX (yesarr##IDX [i]); \
if (var != 1) \
printf ("test" #IDX " failed for yesarr [%u]\n", i), ++fails; \
} \
var = 0; \
for (i = 0; i < (int) (sizeof (noarr##IDX) / sizeof (TYPE)); ++i) \
{ \
test##IDX (noarr##IDX [i]); \
if (var != 0) \
printf ("test" #IDX " failed for noarr [%u]\n", i), ++fails; \
} \
}
#include "range-test-1.C"
#undef T
if (fails)
abort ();
exit (0);
}
#else
/* Use `C' instead of `,' below to separate array entries. */
/* These ought to be all optimized into single comparison. */
T(1, unsigned int, x == 0 || x == 1,
{ 0 C 1 }, { -1U C 2 C 12 C 35 C 0x7fffffff C 0x80000000 })
T(2, unsigned int, x == 0 || x == -1U || x == -2U,
{ 0 C -1U C -2U }, { -3U C -6U C 1 C 2 C 12 C 35 C 0x7fffffff C 0x80000000 })
T(3, unsigned int, x == 0 || x == 1 || x == 2,
{ 0 C 1 C 2 }, { -3U C -6U C -1U C -2U C 12 C 35 C 0x7fffffff C 0x80000000 })
T(4, unsigned int, x == 3 || x == 4 || x == 5 || x == 6,
{ 3 C 4 C 5 C 6 }, { -3U C 0 C 1 C 2 C 7 C 8 C 12 C 0x7fffffff C 0x80000000 })
T(5, unsigned int, x == -3U || x == -4U || x == -5U || x == -6U,
{ -3U C -4U C -5U C -6U }, { -7U C -8U C -2U C -1U C 1 C 2 C 0x7fffffff C 0x80000000 })
T(6, unsigned int, x == -3U || x == -4U || x == -5U,
{ -3U C -4U C -5U }, { -6U C -7U C -8U C -2U C -1U C 1 C 2 C 0x7fffffff C 0x80000000 })
T(7, char *, x == (char *) -3UL || x == (char *) -4UL || x == (char *) -5UL,
{ (char *) -3UL C (char *) -4UL C (char *) -5UL },
{ (char *) -6UL C (char *) -20UL C (char *) -2UL C (char *) -1UL C (char *) 0
C (char *) 1UL C (char *) 35UL C (char *) 0x7fffffffUL C (char *) 0x80000000UL })
T(8, unsigned long, x == -2UL || x == -1UL || x == 0,
{ 0 C -1UL C -2UL }, { -3UL C -6UL C 1 C 2 C 12 C 35 C 0x7fffffff C 0x80000000 })
T(9, unsigned long, x >= -4UL || x <= 8,
{ -4UL C -3UL C -2UL C -1UL C 0 C 1 C 2 C 3 C 4 C 5 C 6 C 7 C 8 },
{ -7UL C -5UL C 9 C 10 C 61 C 127 C 0x7fffffff C 0x80000000 })
T(10, signed char, x == 0 || x == -1 || x == -2 || x == -3,
{ 0 C -1 C -2 C -3 }, { -4 C -5 C 1 C 2 C 3 C 35 C -24 })
T(11, int, x == 0 || x == 1,
{ 0 C 1 }, { -1 C 2 C 12 C 35 C INT_MAX C INT_MIN })
T(12, int, x == 0 || x == -1 || x == -2,
{ 0 C -1 C -2 }, { -3 C -6 C 1 C 2 C 12 C 35 C INT_MAX C INT_MIN })
T(13, int, x == 0 || x == 1 || x == 2,
{ 0 C 1 C 2 }, { -3 C -6 C -1 C -2 C 12 C 35 C INT_MAX C INT_MIN })
T(14, int, x == 3 || x == 4 || x == 5 || x == 6,
{ 3 C 4 C 5 C 6 }, { -3 C 0 C 1 C 2 C 7 C 8 C 12 C INT_MAX C INT_MIN })
T(15, int, x == -3 || x == -4 || x == -5 || x == -6,
{ -3 C -4 C -5 C -6 }, { -7 C -8 C -2 C -1 C 1 C 2 C INT_MAX C INT_MIN })
T(16, int, x == -3 || x == -4 || x == -5,
{ -3 C -4 C -5 }, { -6 C -7 C -8 C -2 C -1 C 1 C 2 C INT_MAX C INT_MIN })
T(17, unsigned int, (x >= -8U && x <= -3U) || x == -2U || x == -1U || x == 0 || x == 1 || x == 2,
{ -8U C -7U C -6U C -5U C -4U C -3U C -2U C -1U C 0 C 1 C 2 },
{ -9U C -10U C 3 C 4 C 12 C -54U C INT_MAX C INT_MIN })
T(18, int, (x >= -8 && x <= -3) || x == -2 || x == -1 || x == 0 || x == 1 || x == 2,
{ -8 C -7 C -6 C -5 C -4 C -3 C -2 C -1 C 0 C 1 C 2 },
{ -9 C -10 C 3 C 4 C 12 C -54 C INT_MAX C INT_MIN })
T(19, unsigned long, x <= 16 || (x >= 18 && x <= -1UL),
{ -3UL C -6UL C -1UL C 0 C 1 C 2 C 12 C 15 C 16 C 18 C 19 C 35 C 0x7fffffff
C 0x80000000 }, { 17 })
T(20, char *, x == (char *) -1UL || x == 0,
{ (char *) -1UL C 0 }, { (char *) -6UL C (char *) -20UL C (char *) -2UL
C (char *) 1UL C (char *) 35UL C (char *) 0x7fffffffUL C (char *) 0x80000000UL })
T(21, integers, x == int_zero || x == int_one,
{ int_zero C int_one }, { int_minus1 C int_two C int_largest C int_smallest })
T(22, int, x == INT_MIN || x == INT_MAX,
{ INT_MIN C INT_MAX },
{ -1 C 0 C 1 C INT_MAX - 1 C INT_MAX - 2 C INT_MIN + 1 C INT_MIN + 2 })
T(23, int, x == INT_MIN + 1 || x == INT_MIN + 2 || x == INT_MIN || x == INT_MAX,
{ INT_MIN + 1 C INT_MIN + 2 C INT_MIN C INT_MAX },
{ -1 C 0 C 1 C INT_MAX - 1 C INT_MAX - 2 C INT_MIN + 3 C INT_MIN + 4 })
T(24, signed char, x == SCHAR_MIN || x == SCHAR_MAX,
{ SCHAR_MIN C SCHAR_MAX },
{ -1 C 0 C 1 C SCHAR_MAX - 1 C SCHAR_MAX - 2 C SCHAR_MIN + 1 C SCHAR_MIN + 2 })
T(25, integers, x == int_smallest || x == int_largest,
{ int_smallest C int_largest }, { int_minus1 C int_zero C int_one
C int_2ndsmallest C int_2ndlargest C int_3rdsmallest C int_3rdlargest })
/* These should be optimized into unconditional jumps. */
T(o1, unsigned long, x <= 16 || (x >= 17 && x <= -1UL),
{ -3UL C -6UL C -1UL C 0 C 1 C 2 C 12 C 15 C 16 C 17 C 18 C 19 C 35 C 0x7fffffff
C 0x80000000 }, { })
T(o2, unsigned long, x <= -3UL || (x == -2UL || x == -1UL),
{ -3UL C -6UL C -1UL C 0 C 1 C 2 C 12 C 15 C 16 C 17 C 18 C 19 C 35 C 0x7fffffff
C 0x80000000 }, { })
/* These should be eventually optimized into a single comparison. */
T(td1, unsigned char, x == 0 || x == 4 || x == 1 || x == 5 || x == 2 || x == 6 || x == 3,
{ 0 C 1 C 2 C 3 C 4 C 5 C 6 }, { 7 C 8 C 127 C 128 C 254 C 255 })
/* These should not be optimized into a single comparison. */
T(n1, smallenum, x == smalle_minus4 || x == smalle_three,
{ smalle_minus4 C smalle_three }, { smalle_minus3 C smalle_minus2 C smalle_minus1
C smalle_zero C smalle_one C smalle_two })
T(n2, enum2, x == enum2_two || x == enum2_five,
{ enum2_two C enum2_five }, { enum2_three C enum2_four })
T(n3, enum3, x == enum3_zero || x == enum3_seven,
{ enum3_zero C enum3_seven }, { enum3_one C enum3_two C enum3_three C enum3_four
C enum3_five C enum3_six })
#endif
#else
int
main (void)
{
return 0;
}
#endif

168
gcc/testsuite/gcc.dg/range-test-1.c Normal file
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@ -0,0 +1,168 @@
/* Test fold-const.c (fold_range_test) optimizations. */
/* { dg-do run } */
/* { dg-options "-O2" } */
#include <stdlib.h>
#include <stdio.h>
#include <limits.h>
#if (INT_MAX == 2147483647) && (INT_MIN == -2147483648) \
&& (SCHAR_MIN == -128) && (SCHAR_MAX == 127) \
&& (UCHAR_MIN == 0) && (UCHAR_MAX == 255)
#ifndef T
enum integers
{
int_smallest = INT_MIN,
int_2ndsmallest = INT_MIN + 1,
int_3rdsmallest = INT_MIN + 2,
int_minus2 = -2,
int_minus1 = -1,
int_zero = 0,
int_one = 1,
int_two = 2,
int_3rdlargest = INT_MAX - 2,
int_2ndlargest = INT_MAX - 1,
int_largest = INT_MAX
};
int var;
void
check (void)
{
++var;
}
#define T(IDX, TYPE, TEST, YESARR, NOARR) \
void __attribute__((noinline)) \
test##IDX (TYPE x) \
{ \
if (TEST) \
check (); \
}
#include "range-test-1.c"
#undef T
int
main (void)
{
int i, fails = 0;
#define C ,
#define T(IDX, TYPE, TEST, YESARR, NOARR) \
{ \
static TYPE yesarr##IDX [] = YESARR; \
static TYPE noarr##IDX [] = NOARR; \
for (i = 0; i < (int) (sizeof (yesarr##IDX) / sizeof (TYPE)); ++i) \
{ \
var = 0; \
test##IDX (yesarr##IDX [i]); \
if (var != 1) \
printf ("test" #IDX " failed for yesarr [%u]\n", i), ++fails; \
} \
var = 0; \
for (i = 0; i < (int) (sizeof (noarr##IDX) / sizeof (TYPE)); ++i) \
{ \
test##IDX (noarr##IDX [i]); \
if (var != 0) \
printf ("test" #IDX " failed for noarr [%u]\n", i), ++fails; \
} \
}
#include "range-test-1.c"
#undef T
if (fails)
abort ();
exit (0);
}
#else
/* Use `C' instead of `,' below to separate array entries. */
/* These ought to be all optimized into single comparison. */
T(1, unsigned int, x == 0 || x == 1,
{ 0 C 1 }, { -1U C 2 C 12 C 35 C 0x7fffffff C 0x80000000 })
T(2, unsigned int, x == 0 || x == -1U || x == -2U,
{ 0 C -1U C -2U }, { -3U C -6U C 1 C 2 C 12 C 35 C 0x7fffffff C 0x80000000 })
T(3, unsigned int, x == 0 || x == 1 || x == 2,
{ 0 C 1 C 2 }, { -3U C -6U C -1U C -2U C 12 C 35 C 0x7fffffff C 0x80000000 })
T(4, unsigned int, x == 3 || x == 4 || x == 5 || x == 6,
{ 3 C 4 C 5 C 6 }, { -3U C 0 C 1 C 2 C 7 C 8 C 12 C 0x7fffffff C 0x80000000 })
T(5, unsigned int, x == -3U || x == -4U || x == -5U || x == -6U,
{ -3U C -4U C -5U C -6U }, { -7U C -8U C -2U C -1U C 1 C 2 C 0x7fffffff C 0x80000000 })
T(6, unsigned int, x == -3U || x == -4U || x == -5U,
{ -3U C -4U C -5U }, { -6U C -7U C -8U C -2U C -1U C 1 C 2 C 0x7fffffff C 0x80000000 })
T(7, char *, x == (char *) -3UL || x == (char *) -4UL || x == (char *) -5UL,
{ (char *) -3UL C (char *) -4UL C (char *) -5UL },
{ (char *) -6UL C (char *) -20UL C (char *) -2UL C (char *) -1UL C (char *) 0
C (char *) 1UL C (char *) 35UL C (char *) 0x7fffffffUL C (char *) 0x80000000UL })
T(8, unsigned long, x == -2UL || x == -1UL || x == 0,
{ 0 C -1UL C -2UL }, { -3UL C -6UL C 1 C 2 C 12 C 35 C 0x7fffffff C 0x80000000 })
T(9, unsigned long, x >= -4UL || x <= 8,
{ -4UL C -3UL C -2UL C -1UL C 0 C 1 C 2 C 3 C 4 C 5 C 6 C 7 C 8 },
{ -7UL C -5UL C 9 C 10 C 61 C 127 C 0x7fffffff C 0x80000000 })
T(10, signed char, x == 0 || x == -1 || x == -2 || x == -3,
{ 0 C -1 C -2 C -3 }, { -4 C -5 C 1 C 2 C 3 C 35 C -24 })
T(11, int, x == 0 || x == 1,
{ 0 C 1 }, { -1 C 2 C 12 C 35 C INT_MAX C INT_MIN })
T(12, int, x == 0 || x == -1 || x == -2,
{ 0 C -1 C -2 }, { -3 C -6 C 1 C 2 C 12 C 35 C INT_MAX C INT_MIN })
T(13, int, x == 0 || x == 1 || x == 2,
{ 0 C 1 C 2 }, { -3 C -6 C -1 C -2 C 12 C 35 C INT_MAX C INT_MIN })
T(14, int, x == 3 || x == 4 || x == 5 || x == 6,
{ 3 C 4 C 5 C 6 }, { -3 C 0 C 1 C 2 C 7 C 8 C 12 C INT_MAX C INT_MIN })
T(15, int, x == -3 || x == -4 || x == -5 || x == -6,
{ -3 C -4 C -5 C -6 }, { -7 C -8 C -2 C -1 C 1 C 2 C INT_MAX C INT_MIN })
T(16, int, x == -3 || x == -4 || x == -5,
{ -3 C -4 C -5 }, { -6 C -7 C -8 C -2 C -1 C 1 C 2 C INT_MAX C INT_MIN })
T(17, unsigned int, (x >= -8U && x <= -3U) || x == -2U || x == -1U || x == 0 || x == 1 || x == 2,
{ -8U C -7U C -6U C -5U C -4U C -3U C -2U C -1U C 0 C 1 C 2 },
{ -9U C -10U C 3 C 4 C 12 C -54U C INT_MAX C INT_MIN })
T(18, int, (x >= -8 && x <= -3) || x == -2 || x == -1 || x == 0 || x == 1 || x == 2,
{ -8 C -7 C -6 C -5 C -4 C -3 C -2 C -1 C 0 C 1 C 2 },
{ -9 C -10 C 3 C 4 C 12 C -54 C INT_MAX C INT_MIN })
T(19, unsigned long, (x >= 0 && x <= 16) || (x >= 18 && x <= -1UL),
{ -3UL C -6UL C -1UL C 0 C 1 C 2 C 12 C 15 C 16 C 18 C 19 C 35 C 0x7fffffff
C 0x80000000 }, { 17 })
T(20, char *, x == (char *) -1UL || x == 0,
{ (char *) -1UL C 0 }, { (char *) -6UL C (char *) -20UL C (char *) -2UL
C (char *) 1UL C (char *) 35UL C (char *) 0x7fffffffUL C (char *) 0x80000000UL })
T(21, enum integers, x == int_zero || x == int_one,
{ int_zero C int_one }, { int_minus1 C int_two C 12 C 35 C int_largest C int_smallest })
T(22, int, x == INT_MIN || x == INT_MAX,
{ INT_MIN C INT_MAX },
{ -1 C 0 C 1 C INT_MAX - 1 C INT_MAX - 2 C INT_MIN + 1 C INT_MIN + 2 })
T(23, int, x == INT_MIN + 1 || x == INT_MIN + 2 || x == INT_MIN || x == INT_MAX,
{ INT_MIN + 1 C INT_MIN + 2 C INT_MIN C INT_MAX },
{ -1 C 0 C 1 C INT_MAX - 1 C INT_MAX - 2 C INT_MIN + 3 C INT_MIN + 4 })
T(24, signed char, x == SCHAR_MIN || x == SCHAR_MAX,
{ SCHAR_MIN C SCHAR_MAX },
{ -1 C 0 C 1 C SCHAR_MAX - 1 C SCHAR_MAX - 2 C SCHAR_MIN + 1 C SCHAR_MIN + 2 })
T(25, enum integers, x == int_smallest || x == int_largest,
{ int_smallest C int_largest }, { int_minus1 C int_zero C int_one
C int_2ndsmallest C int_2ndlargest C int_3rdsmallest C int_3rdlargest })
/* This should be optimized into unconditional jump. */
T(o1, unsigned long, (x >= 0 && x <= 16) || (x >= 17 && x <= -1UL),
{ -3UL C -6UL C -1UL C 0 C 1 C 2 C 12 C 15 C 16 C 17 C 18 C 19 C 35 C 0x7fffffff
C 0x80000000 }, { })
T(o2, unsigned long, (x >= 0 && x <= -3UL) || (x == -2UL || x == -1UL),
{ -3UL C -6UL C -1UL C 0 C 1 C 2 C 12 C 15 C 16 C 17 C 18 C 19 C 35 C 0x7fffffff
C 0x80000000 }, { })
/* This should be eventually optimized into a single comparison. */
T(td1, unsigned char, x == 0 || x == 4 || x == 1 || x == 5 || x == 2 || x == 6 || x == 3,
{ 0 C 1 C 2 C 3 C 4 C 5 C 6 }, { 7 C 8 C 127 C 128 C 254 C 255 })
#endif
#else
int
main (void)
{
return 0;
}
#endif